Telect HPGMTXX User manual

100A/60A Universal Voltage GMT Fuse Panels
With Enhanced Power/Fuse & Bay Alarms
Power :: HPGMTXX & GMTXX
© Telect, Inc., All Rights Reserved, 132152-12 A0
1.509.926.6000 :: telect.com
Applies to : GMT10 :: GMT10FA :: GMT20 :: GMT20S :: HPGMT10-BLK :: HPGMT20 :: HPGMT20RC :: HPGMT20S
Installation Guide

© Telect, Inc., All Rights Reserved, 132152-12 A0
1.509.926.6000 :: telect.com
ii
100A/60A Universal Voltage GMT Fuse Panels
With Enhanced Power/Fuse & Bay Alarms
Power :: HPGMTXX & GMTXX
Table of Contents
1.1 Overview .........................................................................................................................1
1.2 Specications ..................................................................................................................3
1.3 Important Installation Guidelines.....................................................................................5
1.4 Inspection........................................................................................................................6
1.5 Installation .......................................................................................................................6
1.6 Accessories & Alarm Card............................................................................................. 13
1.5.1 Input & GND Lugs................................................................................................. 13
1.5.2 Single-hole Lug Part Numbers for GMT20 Output Terminals................................ 14
1.5.3 GMT Fuses ........................................................................................................... 14
1.5.4 Alarm Card ............................................................................................................ 15
1.7 Diagrams ....................................................................................................................... 15
1.8 Dimensions.................................................................................................................... 17
List of Figures
Figure 1 - GMT Fuse Panel...................................................................................................1
Figure 2 - GMT-Series Comparison Chart ............................................................................2
Figure 3 - Bracket Orientation ...............................................................................................7
Figure 4 - Rack Mounting......................................................................................................7
Figure 5 - Ground Lug Connection........................................................................................8
Figure 6 - Input Connections on a 100A Panel .....................................................................9
Figure 7 - Input Connections on a 60A Panel .......................................................................9
Figure 8 - Status LEDs on Face of ..................................................................................... 10
Figure 9 - Alarm Terminals on Rear of Panel ...................................................................... 10
Figure 10 - Output Connections .......................................................................................... 10
Figure 11 - Designation Card .............................................................................................. 11
Figure 12 - Alarm Schematics (Rear of Designation Card) ................................................. 12
Figure 13 - Alarm Card........................................................................................................ 15
Figure 14 - GMT10 & GMT10FA ......................................................................................... 15
Figure 15 - HPGMT10 & HPGMT10FA ............................................................................... 16
Figure 16 - GMT20S (Typical dimensions also for GMT20) ................................................ 17
Figure 17 - HPGMT10 (Typical dimensions also for GMT10, HPGMT15, & HPGMT20S) .. 18
Figure 18 - HPGMT20......................................................................................................... 19
Figure 19 - HPGMT10FA.....................................................................................................20
Figure 20 - GMT10FA .........................................................................................................21

© Telect, Inc., All Rights Reserved, 132152-12 A0
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100A/60A Universal Voltage GMT Fuse Panels
With Enhanced Power/Fuse & Bay Alarms
Power :: HPGMTXX & GMTXX
1.1 Overview
Telect’s 60A and 100A GMT Panels are
compact 1RU EIA power panels enabling
+ 24 and -48 Vdc power protection for a
variety of wireline and wireless
telecommunications and data equipment.
Most GMT-Series panels t either 19-in. or 23-in.
racks. (See the comparison chart on page 2.)
All panels are white except HPGMT10-BLK,
which is black.
The panel provides total front access to fuses and LED status. Below the bezel holding the status LEDs is a
pull-out designation card holder.
All terminals for inputs, outputs, ground, and alarms are on the same side — either all on the rear or all on the
front. All terminals are covered by a single full-width transparent terminal cover:
• Inputs are either dual-hole lugs for studs (100A panels) or bare conductors for barrel connectors (60A
panels).
• Ground terminals accept either single- or dual-hole lugs.
• Output screw-post terminals accept either ring or forked lugs, as well as bare wire.
• Power/fuse and bay alarms terminals, along with external bay alarm trigger terminals, are wirewrap pins.
GMT-Series panels differ in load rating (60A or 100A), capacity (10, 15, or 20 GMTs per side), single or dual feed,
and total front access (GMT10FA) panels vs. panels with rear-side terminals. All panels are 1RU.
The GMT fuse holders are mounted upside-down so that the GMT indicator ag ips downward when activated,
making identication and detection easier, especially on tall racks. In addition, the GMT fuse holders are mounted
separately — not as a fuse block — thereby making fuse- position management unnecessary when dealing with
10A, 15A, and 20A GMT fuses. Holes for color-coded fuse designation pins are located below each fuse position.
The panel also features separate power and fuse failure status LEDs and power alarm relay connections for each
feed. Major and minor bay alarm LEDs and wirewrap terminals are controlled via an on-board relay triggered by
an external switch closure. All on-board relay contacts are dry Form-C. All LEDs and alarm relays and contacts are
located on an easily removable alarm card.
Figure 1 - GMT Fuse Panel

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100A/60A Universal Voltage GMT Fuse Panels
With Enhanced Power/Fuse & Bay Alarms
Power :: HPGMTXX & GMTXX
Telect ships phoney fuses for each GMT fuse position. Visit our website (telect.com) to order GMT fuses, fuse
designation pins, and other accessories. The following table shows a comparison of the GMT-series fuses.
All Telect’s GMT-Series panels are UL listed (US and Canada, File E139903) and NEBS Level 3 certied, and
RoHS 5/6 compliant. The HPGMT20RC is RoHS 6/6 compliant. All specications for the HPGMT20RC are the
same as the HPGMT20.
Features
60A Max. Input x x x x
100A Max. Iput x x x
20A Max.
Fuse Position
x x x x x x
15A Max. Fuse
Position
x
Universal VDC x x x x x x x
Dual Bus x x x x x
Single Bus x x
Fuse Positions
per Feed
10 10 20 20 10 20 20
Rack Units 1 1 1 1 1 1 1
Width 19” 23” 19” 19” 19” 23” 19”
Front Access x
Stud Input x x
Screw Clamp Input x x x x
BayAlarm x x x x x x x
GMT10 GMT10FA GMT20 GMT20S HPGMT10-BLK HPGMT20S HPGMT20
Legend:
HP=High Power, FA=Front Access, S=Single Bus
Figure 2 - GMT-Series Comparison Chart

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100A/60A Universal Voltage GMT Fuse Panels
With Enhanced Power/Fuse & Bay Alarms
Power :: HPGMTXX & GMTXX
1.2 Specications
Inputs:
Voltage & Range ±20 Vdc to ±60 Vdc @ 20°C ±22 Vdc to ±58 Vdc @
55°C
Max. Input Load Rating 60A/100A depends on model
Max. Power Dissipation at Full Load • < 50W per side (max.) for panels rated for 60A
• < 75W per side (max.) for panels rated at 100A
% of Full Load Power Dissipation less then 1% for all models
Max. Input Interruption Device • 75A for 60A panels • 125A for 100A panels
Input Terminals 100A Panels Dual 1/4-20 studs on 5/8 in. centers. Torque KEPS nut
(using 7/16 in. or 12 mm socket) to ~50 in.-lb (~5.6 N•m),
max.
60A Panels Barrel-style screw-down terminals for #14 AWG to #6
AWG bare conductor. Torque to 16 in.-lb (1.8 N•m), max.
Outputs:
Max. GMT Output Fuse (ea.) • 20A for all but GMT20
• 15A for Model GMT20
Max. GMT Output Load (ea.) • 14A continuous for all but Model GMT20
• 10.5A for Model GMT20
Max. Total GMT Output Per Side • 100A for 100A panels
• 60A for 60A panels
Output Terminals
(Wire-Binding Screw Posts)
• #6-32 for all panels except Model GMT20
• #3-48 for Model GMT20
GMT Output Wire Size Range • #22 to #14 AWG, depending on output fuse (.6A to 20A) for all but GMT20
• #30 to #16 AWG, depending on output fuse (.18A to 15A) for Model GMT20
Interrupt Rating 450A
Short-Circuit Withstand Current 450A
Alarms:
Alarm Relay Contacts Dry Form-C contacts (1A @ 30 Vdc, 0.3A @ 100 Vdc,
0.5A @ 125 Vac)
Max. Alarm Power Rating @24V: 72 mA (1.73W)
@48V: 147 mA (7.06W)
Alarm Wire Size #22 to #18 AWG
Alarm Terminals Wirewrap

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100A/60A Universal Voltage GMT Fuse Panels
With Enhanced Power/Fuse & Bay Alarms
Power :: HPGMTXX & GMTXX
Grounding:
Chassis GND Terminal Studs (With KEPS Nuts) for
Dual-Hole Compres- sion Lug
#10-32 studs on 5/8-in. centers. Torque KEPS nut
(using 3/8 in. or 10 mm socket) to ~20 in.-lb (~2.3
N•m), max.
GND Wire Size • #6 (preferred) or #8 AWG for a 100A panel
• #10 AWG for a 60A panel
Dimensions (Nominal):a
Width x Height x Depth for all except TFA & HPGMT20b17 x 1.75 x 9 in. (432x44x229mm)
Width x Height x Depth for GMT10FA & HPGMT20c21 x 1.75 x 9 in. (533x44x229mm)
a. Without mounting brackets.
b. All 1RU panels and t either a 19-in. or 23-in. rack.
c. Models GMT10FA & HPGMT20 only t 23-in racks.
Fit & Finish
Material 16-gauge steel
Color White powder coat for all but HPGMT10-BLK (black)
Weights (Approximate)
All Single & Dual Panels with 10 GMTs Per Side,
Except GMT10FA Installed 8 lb (3.5 kg)
Shipping 11 lb (5 kg)
GMT20
Installed 11lb (5kg)
Shipping 14 lb (6.25 kg)
Models GMT10FA & HPGMT20
Installed 11lb (5kg)
Shipping 14 lb (6.25 kg)
Environment:
Operating Temperature -10°C (14°F) to 55°C (131°F)
Humidity 0 to 90% and noncondensing

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100A/60A Universal Voltage GMT Fuse Panels
With Enhanced Power/Fuse & Bay Alarms
Power :: HPGMTXX & GMTXX
1.3 Important Installation Guidelines
• Elevated Operating Ambient - If you install the rack in a closed or multi-unit rack assembly, the operating
ambient temperature of the rack environment may be greater than room ambient. Therefore, take care to install
the equipment in an environment compatible with the maximum ambient temperature (TMA) specied by the
manufacturer.
• Reduced Air Flow - Installation of the equipment in a rack should be such that the amount of air ow required
for safe operation of the equipment is not compromised.
• Mechanical Loading - Mounting of the equipment in the rack should be such that a hazardous condition is
not achieved due to uneven mechanical loading.
• Circuit Overloading - Give consideration to the connection of the equipment to the supply circuit and the ef-
fect that overloading of the circuits might have on overcurrent protection and supply wiring. Use appropriate
consideration for equipment nameplate ratings when addressing this concern.
• Reliable Earthing - Maintain reliable earthing of rack-mounted equipment. Pay particular attention to supply
connections other than direct connections to the branch circuit (e.g., use of power strips).
• Disconnect Device - Incorporate a readily accessible disconnect device in the building installation wiring.
1.4 Inspection
Please read and understand all instructions before starting installation. If you have questions, contact Telect
Technical Support at suppor[email protected] or call 1.509.926.6000.
When you receive the equipment, carefully unpack it and compare it to the packaging list. Please report any
defective or missing parts to Telect Quality at qualit[email protected] or call 1.509.926.6000.
Telect is not liable for trasit damaged. If the product is damaged, please report it to the carrier and contact
Telect Quality.

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100A/60A Universal Voltage GMT Fuse Panels
With Enhanced Power/Fuse & Bay Alarms
Power :: HPGMTXX & GMTXX
1.5 Installation
ALERT
!
ALERT! Install this product within a restricted access location where access is through the use of a tool,
lock and key, or other means of security, and is controlled by the authority responsible for the location.
This product must be installed and maintained only by qualied technicians.
Verify all connections meet requirements specied in local electric codes or operating company
guidelines before supplying power. Unit shall be protected by a listed circuit breaker or branch-rated fuse
rated maximum 75A (for 60A-rated feeds) and maximum 125A (for 100A-rated feeds).
All panels except Models GMT10FA and HPGMT20 can be mounted in 19-in. EIA racks. Telect also offers bracket
kits for WECO and ETSI racks. (See our website at telect.com.) GMT10FA and HPGMT20 only t 23-in. racks.
All panels can be ush-mounted or extended by 2 in. or 4 in. beyond the rack ange.

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100A/60A Universal Voltage GMT Fuse Panels
With Enhanced Power/Fuse & Bay Alarms
Power :: HPGMTXX & GMTXX
1. If necessary, remove three screws and reposition/
re-align brackets on sides of distribution the panel,
as shown in the illustration on the right.
2. Locate an unused rack position, normally at the top
of the rack. Mount the panel to the rack using four,
#12-24 thread-cutting screws and lock washers
provided, as shown in Figure 4.
3. Tighten screws to 35 in.-lb (4.29 N•m).
4. Remove the transparent terminal cover, shown in
Figure 5.
Flush
Extended by 2 in.
Extended by 4 in.
Bracke
t Oriented for 19-in. Rack
Bracket Oriented for 23-in. Rack
Figure 3 - Bracket Orientation
Figure 4 - Rack Mounting
WARNING! Failure to properly ground this
equipment can create hazardous conditions for
installation personnel and for the equipment.
WARNING
!

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100A/60A Universal Voltage GMT Fuse Panels
With Enhanced Power/Fuse & Bay Alarms
Power :: HPGMTXX & GMTXX
ALERT
!
ALERT! Only use components and crimping tools approved by agencies or certifying bodies recognized
in your country or region, such as Underwriter’s Laboratories (UL), TUV, etc.
5. Use a listed (approved) crimping tool to attach a
listed (approved), dual-hole, right-angle
compression lug for #10 studs on 5/8-in. centers
onto #6 AWG ground wire. (Min. #8 AWG for a
100A feed; #10 AWG for a 60A feed.)
6. If desired (highly recommended), lightly coat
anti-oxidant on lug, grounding terminal, and
surrounding contacting surface.
7. Connect the lug using the #10-32 KEPS nuts and
atwashers provided, as shown in Figure 5.
8. Tighten KEPS nuts to ~20 in.-lb (~2.3 N•m), max.
9. Make sure input power is off (open breaker,
phoney fuse, or open fuse holder at primary power
distribution unit [PDU]) before connecting this
panel’s input cables to that PDU.
10. For input wiring — wiring used as inputs to this distribution the panel — do one of the following: (Refer to the
following illustrations.)
For input wiring on a 100A panel — (see page 9 for 60A input wiring instructions)
a. Crimp dual-hole compression lugs onto #8 to #1/0 AWG conductors (#1/0 AWG with a 60C insulation rating,
minimum for a 100A feed). Insulate lug barrels with UL94 V-0 rated heat-shrink tubing.
b. Clean terminals and lugs with an nonabrasive, nonmetallic cloth.
c. If desired (highly recommended), lightly coat anti-oxidant on lugs, terminals, and contacting surfaces.
d. Connect lugs to input BATT and RTN terminals on the panel.
e. Torque KEPS nuts to ~50 in.-lb (~5.6 N•m), max.
11. Make sure GMT fuse positions are either empty or contain dummy fuses (phoney, inoperative, all-plastic slugs).
Figure 5 - Ground Lug Connection
WARNING
!
WARNING! Before connecting input power cables, make sure the input power to the panel is turned off.

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100A/60A Universal Voltage GMT Fuse Panels
With Enhanced Power/Fuse & Bay Alarms
Power :: HPGMTXX & GMTXX
Figure 6 - Input Connections on a 100A Panel
ALERT
!
ALERT! Only service personnel may replace fuses. The installer must verify that a readily accessible
protection device is incorporated in the building wiring feeding the fuse panel: 125A (max.) protection
device for a 100A panel; 75A (max.) for a 60A panel.
For input wiring on a 60A panel —
a. Strip off about 3⁄4 in. (10 mm) of insulation at end of input conductors (min. #6 AWG for a 60A feed).
b. If desired (highly recommended), lightly coat anti-oxidant on the bare conductor.
c. Insert the bare conductor into the barrel connector as indicated in the illustration, and then tighten the
screw to 16 in.-lb (1.8 N•m), max.
DO NOT REMOVE CAPS*
* Screws located below caps are used for
installing internal wiring at the factory.
Figure 7 - Input Connections on a 60A Panel

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10
100A/60A Universal Voltage GMT Fuse Panels
With Enhanced Power/Fuse & Bay Alarms
Power :: HPGMTXX & GMTXX
ALMALMBBAA
MAJOR MINORFUSEPWRFUSEPWR
Figure 8 - Status LEDs on Face of
Removable Alarm Card
MAJ MIN PWR
A
PWR
B FUSE
N
C
C
N
O
A
R
Figure 9 - Alarm Terminals on Rear of Panel
Figure 10 - Output Connections
12. Enable protection device (fuse or breaker) at
primary PDU to turn on Feed A to Side A of panel
and then check voltage and polarity at input
connectors of panel. Also, check that
• PWR A LED on front of panel turns on (green).
• PWR B LED and both FUSE LEDs must be off.
13. With PWR A lit — but with PWR B LED off — test
power-fail relay and contacts at PWR A alarm
terminals on rear of panel:
• Expect continuity (0Ω) between Terminals C and NC.
• Expect an open circuit (00Ω) between Terminals C
and NO.
14. Also, test fuse alarm relay contacts at FUSE alarm
terminals, then
• Expect continuity (0Ω) between Terminals C and NC.
• Expect an open circuit (00Ω) between Terminals
C and NO.
15. Repeat Steps 12 through 14 to power up Side B.
PWR A and PWR B LEDs must both be green.
16. With PWR A and PWR B lit, test power-fail relay
and contacts at PWR A and PWR B alarm
terminals:
• Expect continuity (0Ω) between Terminals C and NC.
• Expect an open circuit (00Ω) between Terminals
C and NO.
1 7. Make sure none of the fuse positions contain real,
operable fuses.
18. For GMT output wiring, proceed as follows:
For all Models except GMT20 —
a. Working with one wire at a time, either:
•Crimp a single-hole ring or fork lug for a #6-32
screw-post terminal, as required by NEC, or
• Strip 3/8 in. (10 mm) of insulation from a #26
to #12 copper wire for a bare-wire connection.
b. Clean the panel terminals and lug (if applicable)
with a nonabrasive, nonmetallic cleaning pad.
c. If required, lightly coat anti-oxidant on lug/wire
and output BATT and RTN terminals, and then
connect to terminals.

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100A/60A Universal Voltage GMT Fuse Panels
With Enhanced Power/Fuse & Bay Alarms
Power :: HPGMTXX & GMTXX
(NEC species only one load at each output terminal.) Tighten #6-32 screws using either a at-tipped
screwdriver or Phillips screwdriver (for cross-recessed screw heads) to no greater than 6 in.-lb (~0.7 N•m).
Connect other end of output wire to load.
For Model GMT20 —
a. Working with one wire at a time, either
• Crimp a single-hole ring or fork lug for a #3-48 screw-post terminal, as required by NEC, or
• Strip 3/8 in. (10 mm) of insulation from a #30 to #16 copper wire for a bare-wire connection.
b. Clean panel terminals and lug (if applicable) with a nonabrasive, nonmetallic cleaning pad.
c. If required, lightly coat anti-oxidant on lug/wire and output BATT and RTN terminals, and then connect to
terminals. (NEC species only one load at each output terminal.) Tighten #5-40 screws using either a at-
tipped screwdriver or Phillips screwdriver (for cross-re- cessed screw heads) to no greater than 5 in.-lb
(~0.6 N•m). Connect other end of output wire to load.
19. Record circuit assignments in accordance with operating company procedures and guidelines.
The manufacturer’s designation card, shown below, is a 10 in. (254 mm) by 21⁄2 in. (57 mm) card that folds in
half to t a card holder located below the status LEDs.
20. Make sure load devices are off (disabled) and then install GMT fuses.
Remember, GMT fuses need to be installed so that failure indication ags are at the bottom,as shown in the
following illustration.
SIDE A SIDE B FUSETYPE FUSETYPERACK/BAY# RACK/BAY#
POS POS POS POS
AMP AMP AMP AMP
DESCRIPTION DESCRIPTION DESCRIPTION DESCRIPTION
Figure 11 - Designation Card
ALERT
!
ALERT! GMT fuses have a small inherent electrical resistance resulting in a small inherent power loss. For
this reason, the GMT fuse manufacturer recommends that the load for GMT fuses up to and
including 7.5A not exceed 80% of the fuse rating and that the load for GMT fuse sizes between 10A
and 20A not exceed 70% of the fuse rating. For example, the load for a 15A GMT fuse should not exceed
10.5A (15A x 0.70 = 10.5A).

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100A/60A Universal Voltage GMT Fuse Panels
With Enhanced Power/Fuse & Bay Alarms
Power :: HPGMTXX & GMTXX
The total load for all fuse outputs on each side must not exceed the panel’s load rating: either 60A or100A.
2 1. Test power and polarity at input of each equipment load.
22. If possible, replace one of the operable GMT fuses with a blown fuse to verify that the applicable FUSE Alarm
LED turns red. Also, check the FUSE alarm terminals on the rear of the panel:
• Expect an open circuit (00Ω) between Terminals C and NC.
• Expect continuity (0Ω) between Terminals C and NO. Re-install operable GMT fuse before proceeding.
If desired, connect remote, external audio/visual panel alarm indicator wires (solid wires, #22 to #18 AWG) to
wirewrap PWR and FUSE alarm pins on rear of panel, as shown below on the right.
23. If desired, connect remote audio/visual bay alarms indicator wires to the MAJ (major) and MIN (minor) alarm
pins. Also install switch closure wires to the A (activate) and R (reference) pins, as shown above on the left, to
control the bay alarm relay.
24. Re-install terminal cover.
25. Lastly, enable equipment loads one at a time to verify the proper operation of loads.
MAJ MIN
NC
C
NO
R
A
TO ALARM
SYSTEM
TO ALARM
SYSTEM
TO ALARM
SYSTEM
TO ALARM
SYSTEM
EXTERNAL
LOOP
CLOSURE
A - ACTIVATE
R - REFERENCE
NC
C
NO
PWR
A
PWR
BFUSE
BAY ALARM TERMINALS ENHANCED PANEL ALARM TERMINALS
Figure 12 - Alarm Schematics (Rear of Designation Card)

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100A/60A Universal Voltage GMT Fuse Panels
With Enhanced Power/Fuse & Bay Alarms
Power :: HPGMTXX & GMTXX
1.6 Accessories & Alarm Card
The following lists optional and replacement items for the panel. For compression lugs, please refer to Wire Sizing
& Label Convention Chart (Telect Part No. 117995) included with your panel.
WARNING
!
WARNING! Use only UL-listed fuses or UL-recognized component secondary protection devices.
1.5.1 Input & GND Lugs
The following table describes the available input lugs for stranded copper conductors with straight dual-hole lugs
for 1/4-in. studs on 5/8-in. centers.
Table 1 - Input Lugs
Source #1/0 AWG #2 AWG #4 AWG #6 AWG #8 AWG
Telect 06117-02 06117-04 06117-01 06117-11
T & B 54206
(Die Code 29)
54205
(Die Code 24)
542040416
(Die Code 21)
Panduit LCDN2-14A-Q
(Die Code 33)
LCD4-14A-L
(Die Code 29)
LCD6-14A-L
(Die Code 24)
LCD8-14A-L
(Die Code 21)
Burndy YA25L2NT14
(Die Code12)
YA4CL2TC14
(Die Code 8)
YA6CL2TC14
(Die Code 7)
YA8CL2TC14
(Die Code 49)
The following table describes the available ground lugs for stranded copper conductors with 90° dual-hole lugs for
#10 studs on 5/8-in. centers.
Table 2 - Ground Lugs
Source #6 AWG #8 AWG
T&B 256-30695-1356 (Die Code 24) 54204UB (Die Code 21)
Panduit LCD6-10AF-L (Die Code 24) LCD8-10AF-L (Die Code 21)
Burndy YA6CL2TC1090 (Die Code 7) YA8CL2TC1090 (Die Code 49)

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100A/60A Universal Voltage GMT Fuse Panels
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Power :: HPGMTXX & GMTXX
1.5.2 Single-hole Lug Part Numbers for GMT20 Output Terminals (For #3 Panhead Screws)
The GMT20 output terminals accommodate bare wire up to #16 AWG. If lugs are required, only three with
insulated barrels apply for accommodating #22 - #14 AWG:
• AMP 324608 with a anged (dog-eared), straight, forked tongue for #22 - #16 AWG
• Burndy TP14-2F with a straight, forked tongue for #16 - #14 AWG
• Burndy TP14-2Z with a anged, straight, forked tongue, also for #16 - #14 AWG
1.5.3 GMT Fuses
For additional dummy fuses, order part number 132748. For GMT safety (splash/splatter) covers, order part number
116915 for GMT fuses up to 15A. Telect recommends using only UL-recognized supplementary protectors.
GMT Fuse Part Numbers GMT Fuse Colored Designation Pin Part No.
.18A Yellow (YEL) 130781 102435-21
1⁄4A Violet (VIO) 100151 102435-2
1⁄2A Red (RED) 004001 102435-5
3⁄4A Brown (BRN) 004008 102435-7
1A Gray (GRY) 100991 102435-8
11/3A White (WHT) 004006 102435-9
11⁄2A White/Yellow (WHT/YEL) 004011 102435-10
2A Orange (ORN) 004002 102435-11
2.5A White/Orange (WHT/ORN) 130783 102435-12
3A Blue (BLU)
3.5A White/Blue (WHT/BLU)
004012 102435-13
130782 102435-14
4A White/Brown (WHT/BRN) 004013 102435-15
5A Green (GRN) 004014 102435-16
71⁄2A Black/White (BLK/WHT) 004010 102435-17
10A Red/White (RED/WHT) 004015 102435-18
12A Yellow/Green (YEL/GRN) 102287 102435-19
15A Red/Blue (RED/BLU) 102288 102435-20
20A White/Green Without Safety Cover
(WHT/GRN)
127240RC
20A White/Green With Safety Cover
(WHT/GRN)
131340 102435-22

© Telect, Inc., All Rights Reserved, 132152-12 A0
1.509.926.6000 :: telect.com 15
100A/60A Universal Voltage GMT Fuse Panels
With Enhanced Power/Fuse & Bay Alarms
Power :: HPGMTXX & GMTXX
1.5.4 Alarm Card
The alarm card (Telect Part No. 304304;
HPGMT20RC alarm card is Telect Part No.
304304RC) is fastened to the front of the
panel by four Phillips screws (screws with
cross-recessed heads). To remove the
alarm card, remove the screws, gently
slide out status LED bezel and alarm card,
and then disconnect the header cables near
the far end of the alarm card.
1.7 Diagrams
The diagrams that follow are representative of Telect’s GMT-Series of power panels.
ALARM PCB
PWR A
FUSE A
C GND
RTN
BATT
INPUT A
PWR B
GMT OUTPUT A
BATT
5
1
3
4
2
FUSE B
MINOR ALM
MAJOR ALM
MAJ MIN PWR
A
PWR
B FUSE
NC
C
NO
R
A
NC
C
NO
6
7
8
9
10
G
5
1
3
4
2
6
7
8
9
10
Side B same as Side A
Alarm Card
BLK
WHT
Faceplate & screws
are not part of alarm
card assembly.
Figure 13 - Alarm Card
Figure 14 - GMT10 & GMT10FA

© Telect, Inc., All Rights Reserved, 132152-12 A0
1.509.926.6000 :: telect.com
16
100A/60A Universal Voltage GMT Fuse Panels
With Enhanced Power/Fuse & Bay Alarms
Power :: HPGMTXX & GMTXX
1.8 Dimensions
The dimensioned drawings that follow are representative of Telect’s GMT-Series of power panels.
19.00 [482.6]
18.31 [465.1]
17.00 [431.8]
1.72 [43.7]
1.25 [31.7]
9.00 [228.6]
11.68 [296.7]
0.45 [11.4]
Barrel Connector
#6-32 Screw Posts
58[15.9]
10-32 Studs With KEPS Nuts & Flat Washers
Phoney GMT Fuses
NOTES: 1. All dimensions are in in. [mm].
2. Panel includes phoney fuses. Actual
fuses are sold separately.
Transparent Plastic Terminal Cover
EIA Brackets (WECO & ETSI Bracket Kits are Available.)
R E A R V IE W
(R O T A T E D )
T O P V IE W
F R O N T V IE W
ALMALMBBAA
MAJORMINORFUSEPWRFUSEPWR
22.31 [566.7]
23.00 [584.2]
2.00 [50.8]
4.00 [101.6]
DO NOT REMOVE PLASTIC CAPS
1 2 3 4 5 6 7 8 9 10
20A GMT FUSE MAX 20A GMT FUSE MAX
11 12 13 14 15 16 17 18 19 20
0.29 [7.5]
20 19 18 17 16 15 14 13 12 11 10 9 87654 3 2 1
MAJ MIN PWR
A
PWR
B FUSE
NC
C
NO
R
A
BATT
RTN
BATT
RTN
GMT20S
20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 54 3 2 1
48
24
-
+
-
V - - -
SINGLE
INPUT
BUS
60A
INPUT
60A
MAX
Barrel Connector
#3-48 Screw Posts
58[15.9]
10-32 Studs With KEPS Nuts & Flat Washers
NOTES: 1. All dimensions are in in. [mm].
2. Panel includes phoney fuses. Actual
fuses are sold separately.
R E A R V IE W
(R O T A T E D )
DO NOT REMOVE PLASTIC CAPS
0.19 [4.8]
INPUT
60A
MAX
1 2 34567 8 9 10 11 12 13 14 15
BATT
RTN
INPUT
60A
MAX
BATT
RTN
1 2 3456 7 8 9 10 11 12 13 14 15
234567 8 9 10 11 12 13 14 15
1 2 3 4 56 7 8 9 10 11 12 13 14 15
MAJ MIN PWR
A
PWR
B FUSE
NC
C
NO
A
R
BATT
RTN
BATT
RTN
116 17 18 19 20
16 17 18 19 20
16 17 18 19 20
16 17 18 19 20
AB
GMT20
Figure 16 - GMT20S (Typical dimensions also for GMT20)

© Telect, Inc., All Rights Reserved, 132152-12 A0
1.509.926.6000 :: telect.com 17
100A/60A Universal Voltage GMT Fuse Panels
With Enhanced Power/Fuse & Bay Alarms
Power :: HPGMTXX & GMTXX
19.00 [482.6]
18.31 [465.1]
17.00 [431.8]
1.72 [43.7]
1.25 [31.7]
9.00 [228.6]
11.70 [297.3]
0.45 [11.4]
0.28 [7.2]
58[15.9]
14- 20 Studs With KEPS Nuts & Flat Washers
6-32 Screw Posts 0.29 [7.5]
58[15.9]
10-32 Studs With KEPS Nuts & Flat Washers
Phoney GMT Fuses
NOTES: 1. All dimensions are in in. [mm].
2. Panel includes phoney fuses. Actual
fuses are sold separately.
Transparent Plastic Terminal Cover
EIA Brackets (WECO & ETSI Bracket Kits are Available.)
R E A R V IE W
( R O T A T E D)
T O P V IE W
F R O N T V IE W
ALMALMBBAA
MINORMAJORFUSEPWRFUSEPWR
22.31 [566.7]
23.00 [584.2]
2.00 [50.8]
4.00 [101.6]
1 2 3 4 5 6 7 8 9 10
20A GMT FUSE MAX 20A GMT FUSE MAX
1 2 3456 7 8 910
B
INPUT
100A
MAX
10 9 8 7 6 5 4 3 2 1
BATT
RTN
A
INPUT
100A
MAX
BATT
RTN
MAJ MIN PWR
A
PWR
B FUSE
NC
C
NO
A
R
BATT
RTN
BATT
RTN
HPGMT10
10 9 8 7 6 5 4 321
10 9 8 7 6 5 4 3 2 1
10 9 8 7 6 5 4 321
B
INPUT
BUS
100A
A
INPUT
BUS
100A
48
24
-
+
-
V - - -
48
24
-
+
-
V - - -
Figure 17 - Typical Dimensions for GMT10, HPGMT10-BLK, & HPGMT20S

© Telect, Inc., All Rights Reserved, 132152-12 A0
1.509.926.6000 :: telect.com
18
100A/60A Universal Voltage GMT Fuse Panels
With Enhanced Power/Fuse & Bay Alarms
Power :: HPGMTXX & GMTXX
NOTES: 1. All dimensions are in in. [mm].
2. Panel includes phoney fuses. Actual
fuses are sold separately.
ALMALMBBAA
MAJORMINORFUSEPWRFUSEPWR
23.00 [584.2]
1.72 [43.7]
22.31 [566.7]
1.25 [31.7]
21.00 [533.4]
2.00 [50.8]
4.00 [101.6]
9.00 [228.6]
Phoney GMT Fuses
Transparent Plastic Terminal Cover
EIA Brackets (WECO & ETSI Bracket Kits are Available.)
T O P V I E W
F R O N T V IE W
11.69 [296.8]
0.45 [11.4]
A B
INPUT
BUS
100A
INPUT
BUS
100A
6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
20A GMT FUSE MAX 20A GMT FUSE MAX
1 2 3 4 56 7 8 9 10 11 12 13 14
5
1 2 3 4 16 17 1815 19 20
HPGMT20
0.28 [7.2]
58[15.9]
14- 20 Studs With KEPS Nuts & Flat Washers
6-32 Screw Posts 0.29 [7.5]
58[15.9]
10-32 Studs With KEPS Nuts & Flat Washers
R E A R V IE W
(R O T A T E D )
INPUT
100A
MAX
20 19 18 17 16 15 14 13 12 11 10 9 8 7 6
BATT
RTN
INPUT
100A
MAX
BATT
RTN
MAJ MIN PWR
A
PWR
B FUSE
NC
C
NO
A
R
BATT
RTN
BATT
RTN
5 4 3 2 1
20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
48
24
-
+
-
V - - -
48
24
-
+
-
V - - -
BA
Figure 18 - HPGMT20 / HPGMT20RC