Amphenol Telect 350CB06 User manual

Dual-Feed 350A 6-Circuit
Breaker/TFD Distribution
Panel with 5 GMTs
Installation Guide

i
Amphenol Network Solutions
All rights reserved. 12.16.19 138661-5 A0
509.926.6000 – amphenol-ns.com
Dual-Feed 350A 6-Circuit
Breaker/TFD Distribution
Panel with 5 GMTs
Installation Guide, Part Number 138661 A0
Copyright 2019, Amphenol Network Solutions, All rights reserved.
Amphenol Network Solutions
22425 E. Appleway Ave #11
Liberty Lake, WA 99019
Amphenol Network Solutions assumes no liability from the application or use of these products.
Amphenol Network Solutions does not convey any license under its patent rights nor the patent
rights of others. This document and the products described herein are subject to change without notice.
About
Amphenol Network Solutions is a global innovative original equipment manufacturer that serves the
data and communications markets. We design, manufacture, and distribute products for customers who
need an end to end solution for network connectivity, fiber, power distribution and rack management.
We collaborate with our customers to deliver product solutions that exceed expectations with innovative
designs and world class quality. Amphenol Network Solutions is the industry thought leader on network
cable management.
Telect, Inc. has been a market leader in secondary DC power distribution for
over 36 years. Through our acquisition by Amphenol and our merger with All
Systems Broadband, to become Amphenol Network Solutions, we have
continued to deliver reliable, high-quality solutions to power, protect, and
monitor today’s network servers and equipment. We are proud to be an
Amphenol company that will continue to be Powered by Telect.
Technical Support
Email: [e-mail]
Phone: [phone]

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Amphenol Network Solutions
All rights reserved. 12.16.19 138661-5 A0
509.926.6000 – amphenol-ns.com
Dual-Feed 350A 6-Circuit
Breaker/TFD Distribution
Panel with 5 GMTs
Table of Contents
1.1 Overview.................................................................................................................................................................... 1
1.2 Important Installation Guidelines................................................................................................................................. 2
1.3 Specifications............................................................................................................................................................. 3
1.4 Inspection .................................................................................................................................................................. 5
1.5 Installation.................................................................................................................................................................. 5
1.6 Parts & Accessories ..................................................................................................................................................13
1.7 Schematic Drawing ...................................................................................................................................................15
1.8 Drawings...................................................................................................................................................................16
List of Figures
Figure 1 – 350CB06 Distribution Panel............................................................................................................................. 1
Figure 2 – Bracket Orientation.......................................................................................................................................... 5
Figure 3 – Rack Mounting ................................................................................................................................................ 6
Figure 4 – Ground to Chassis........................................................................................................................................... 7
Figure 5 – Input Lug Connections..................................................................................................................................... 8
Figure 6 – Alarm Faceplate .............................................................................................................................................. 8
Figure 7 – CB/TFD Output Lug Connections..................................................................................................................... 9
Figure 8 – GMT Output Lug Connections ........................................................................................................................10
Figure 9 – Installing Circuit Breaker.................................................................................................................................11
Figure 10 – Installing GMT Fuses....................................................................................................................................11
Figure 11 – Designation Card..........................................................................................................................................12

1
Amphenol Network Solutions
All rights reserved. 12.16.19 138661-5 A0
509.926.6000 – amphenol-ns.com
Dual-Feed 350A 6-Circuit
Breaker/TFD Distribution
Panel with 5 GMTs
1.1 Overview
The Amphenol Network Solutions dual-feed 350A circuit
breaker/TFD panel provides high-capacity protection for
secondary power distribution, co-locations and data for
communications equipment. In addition, the provided GMT
fuses enhance power distribution for applications that require
15A or less. Each of the dual feeds contains six interrupter
positions for either bullet-style REC switch (ON/OFF) circuit
breakers or TFD holders. Each feed also includes five GMT
fuses. Go to amphenol-ns.com to order circuit breakers, TFD
holders and GMT fuses:
•TLS fuses up to 70A rated, continuous current 80% of rated
•TPS fuses up to 125A rated, continuous current 80% of rated
•GMT fuses up to 15A rated, continuous current 70% of rated
•Circuit breakers up to 100A rated, continuous current 80% of rated
This panel ships with solid covers over the circuit breaker/TFD positions and with fuse-slot fillers in the GMT holders.
Sides A and B are electrically isolated except for the replaceable alarm card, which contains power and alarm LEDs. The
panel features separate power status LEDs and a single-alarm LED for breaker trips or fuse failures. Power and alarm
relay connections are controlled on-board and provide dry Form-C contacts.
All input, output and alarm terminals are on the rear, and all are covered by a single, full-size transparent terminal cover.
Separate input terminal sub-covers maintain protection for the other terminals when you are only working with the load
and/or alarm terminals. Two pairs of ground studs on the rear panel provide flexibility in grounding from either side of the
rack. The input, output and ground studs support the following cable gauges:
•Input terminals support up to a 750-MCM cable
•Output terminals support up to a 2-AWG cable
•Ground studs support up to a 1-AWG cable
Fig. 1: 350CB06 Distribution Panel

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Amphenol Network Solutions
All rights reserved. 12.16.19 138661-5 A0
509.926.6000 – amphenol-ns.com
Dual-Feed 350A 6-Circuit
Breaker/TFD Distribution
Panel with 5 GMTs
1.2 Important Installation Guidelines
•Elevated Operating Ambient – If installed in a closed or multi-rack assembly, the operating ambient temperature
of the rack environment may be greater than room ambient. Therefore, consideration should be given to installing
the equipment in an environment compatible with the maximum ambient temperature (TMA) specified by
the manufacturer.
•Reduced Air Flow – Installation of the equipment in a rack should be such that the amount of air flow 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 – Consideration should be given to the connection of the equipment to the supply circuit and
the effect that overloading of the circuits might have on overcurrent protection and supply wiring. Appropriate
consideration of equipment nameplate ratings should be used when addressing this concern.
•Reliable Earthing – Reliable earthing of rack-mounted equipment should be maintained. Attention should be given
to supply connections other than direct connections to the branch circuit (e.g. use of power strips).
•Disconnect Device – A readily disconnect device shall be incorporated in the building installation wiring.

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509.926.6000 – amphenol-ns.com
Dual-Feed 350A 6-Circuit
Breaker/TFD Distribution
Panel with 5 GMTs
1.3 Specifications
Inputs:
Specifications:
Voltage range (nominal voltage)
± 20V to ± 30V (nominal ± 24 VDC)
-40V to -60V (nominal -48 VDC)
Max. input load rating
350A @ +50°C
300A @ +55°C
Short circuit withstand rating
5000A
Nominal power loss at full load
Less than 40W per side @ 16,800W full load per side
(350A x 48V)
Max. input interrupt device
440A
Input terminal studs (with nuts, flat washers & spring
washers) for dual-hole compression lugs
3/
8
-16 studs on 1 in. centers [max. lug width of 1.625 in.
(41.3 mm)]. Torque nuts (using 9/16 in. or 15 mm wrench)
to 140 in-lb. (15.5 N•m).
Input wire size
#1 AWG to 750 MCM
Breaker/Fuse Outputs:
Specifications:
Max. output single-pole, long-delay circuit breaker (ea.)
100A
Max. output TFD holder, schematic C
125A (TLS fuse)
70A (TPS fuse)
Max. continuous output load (ea.)
80% of rated
Min. short circuit interrupt rating
5000A
Max. total output load
300A per side
Output terminal studs (with KEPS nuts and washers) for
dual-hole compression lugs
10-32 studs on 5/
8
in. centers [max. lug width of 0.6 in.
(15.2 mm). Torque nuts (using 3/8in. or 10 mm wrench) to
20 in-lb. (2.27 N•m)
Output wire size
#6 AWG to #2 AWG
GMT Outputs:
Specifications:
Max. rated output GMT fuse (ea.)
15A
Max. continuous output load (ea.)
70% of rated
Max. total output load
50A per side
Output terminals for compression lugs
6-32 panhead screws [max. lug width of 0.32 in.
(8.1 mm)]. Torque to 6.3 in-lb. (0.7 N•m).
Output wire size*
#22 AWG to #12 AWG

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Amphenol Network Solutions
All rights reserved. 12.16.19 138661-5 A0
509.926.6000 – amphenol-ns.com
Dual-Feed 350A 6-Circuit
Breaker/TFD Distribution
Panel with 5 GMTs
ALERT! Verify that all connections meet requirements specified in local electric codes or operating company
guidelines before supplying power. Protect this equipment with a fuse or breaker sufficient to interrupt power
levels specified on the preceding pages.
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. Only qualified technicians
may install and maintain this product.
Grounding:
Specifications:
Earth GND terminal studs for dual-hole compression lugs
1/
4
-20 studs on 5/
8
in. centers. Torque nuts (using 7/
16
in. or
12 mm wrench) to 25 in-lb. (2.83 N•m).
Ground wire size
Up to #1 AWG
Alarms:
Specifications:
Alarm relay contacts
2A @ 30 VDC
0.6A @ 60 VDC
Max. alarm card power rating
@ 24V: 40 mA (.96W)
@ 48V: 58 mA (2.78W)
Alarm wire size
#18 AWG to #22 AWG
Alarm terminals
Wire wrap
Dimensions:
Specifications:
Nominal, without brackets:
Width:
Height:
Depth:
17.25 in. (438 mm)
5 in. (127 mm)
8 in. (203 mm)
Weight:
Specifications:
Without packaging and accessories
19 lbs. (8.6 kg)
Shipping
22 lbs. (10 kg)
Environment:
Specifications:
Operating temperature
-10°C (14°F) to 55°C (131°F)
Humidity
90%, non-condensing

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Amphenol Network Solutions
All rights reserved. 12.16.19 138661-5 A0
509.926.6000 – amphenol-ns.com
Dual-Feed 350A 6-Circuit
Breaker/TFD Distribution
Panel with 5 GMTs
1.4 Inspection
Please read and understand all instructions before starting installation. If you have questions, contact Amphenol Network
Solutions Technical Support at [e-mail] 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 Amphenol Network Solutions Quality at [e-mail] or call 1.509.926.6000.
Amphenol Network Solutions is not liable for transit damage. If the product is damaged, please report it to the carrier and
contact Amphenol Network Solutions Quality.
1.5 Installation
Panel brackets provide flush, 2-in. extended, 4-in. extended EIA or WECO mounting in a 19-or 23-in. rack.
Procedure steps:
1. Use the six screws provided to fasten the brackets to the panel, as shown in the following two illustrations.
Fig. 2: Bracket Orientation

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All rights reserved. 12.16.19 138661-5 A0
509.926.6000 – amphenol-ns.com
Dual-Feed 350A 6-Circuit
Breaker/TFD Distribution
Panel with 5 GMTs
2. Locate an unused rack position and mount the panel using at least two sets of fasteners (screws and star washers
provided) per side, as shown in Figure 3. (Mount the panel as high as possible on the rack.)
3. Tighten the screws to 35 in-lb. (4.29 N•m).
If you intend on installing more than one panel per rack, you need to plan a rack arrangement that dissipates heat
efficiently, as suggested on the following page.
4. Loosen (you need not remove) the two screws securing the transparent terminal cover to the rear of the panel.
5. Remove the cover.
WARNING! Failure to properly ground this equipment can create hazardous conditions to installation personnel
and to the equipment.
Fig. 3: Rack Mounting

7
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All rights reserved. 12.16.19 138661-5 A0
509.926.6000 – amphenol-ns.com
Dual-Feed 350A 6-Circuit
Breaker/TFD Distribution
Panel with 5 GMTs
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.
6. Use a listed (approved) crimping tool to attach a
listed (approved), dual-hole compression lug onto
suitable ground wire. (The size of the ground
depends on the input interruption device.)
7. If required, lightly coat an antioxidant on the lug
and grounding surface on the rear of the panel.
8. Connect using 1/4-20 hex nuts and flat washers
provided, as shown in Figure 4.
9. Tighten the bolt to 25 in-lb. (2.83 N•m), max.
WARNING! Before connecting input power cables,
make sure input power to panel is turned off.
10. Make sure the input power is off (open breaker,
dummy fuse or open fuse holder at primary power
distribution unit or battery) before connecting this
panel’s input cables to the PDU or battery.
11. For input wiring — wiring used as inputs to this
load center — crimp dual-hole compression
lugs onto #1-AWG to 750-MCM copper wires.
The choice of input wiring depends on the
following criteria:
•The input interrupt device rating affects the
size of the input wiring.
•Ambient operating temperature affects the
type of input wire insulation. For further
information consult the National
Electrical Code (NEC).
Fig. 4: Ground to Chassis

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Amphenol Network Solutions
All rights reserved. 12.16.19 138661-5 A0
509.926.6000 – amphenol-ns.com
Dual-Feed 350A 6-Circuit
Breaker/TFD Distribution
Panel with 5 GMTs
12. Insulate lug barrels with UL94 V-0-rated
heat-shrink tubing.
13. Clean the terminals and lugs with a
nonabrasive, nonmetallic pad.
14. If required, lightly coat an antioxidant on the
lugs and input BATT and RETURN terminals.
15. Connect the lugs to input terminals on the
back of the panel, as shown in Figure 5.
16. Tighten the lugs to 140 in-lb. (~15.5 N•m), max.
17. Make sure all interrupter positions are either empty,
off or contain dummy fuses (phony, inoperative
all-plastic slugs.)
18. Enable the fuse or breaker at the primary distribution
unit or battery (440A max.) to turn on Feed A to
Side A of the panel and then check the voltage and
polarity at input connectors of panel.
Also check that:
•POWER A LED on the front of the panel turns
on (green).
•POWER B LED is off.
19. Repeat the previous step with Feed B and verify
POWER B LED.
20. With POWER A and B LEDs green (normal operation),
test power-fail relay and contacts at POWER FAIL
alarm terminals on the rear of the panel:
•Expect continuity (0Ω) between Terminals C
and NC.
•Expect an open circuit (∞Ω) between Terminals
Cand NO.
21. Test fuse alarm relay contacts at ALARM (CB/Fuse
Alarm) terminals on the rear of the panel.
•Expect continuity (0Ω) between Terminals C
and NC.
•Expect an open circuit (∞Ω) between Terminals
Cand NO.
Fig. 5: Input Lug Connections
Fig. 6: Alarm Faceplate
POWER
POWER
ALARM
A
B

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All rights reserved. 12.16.19 138661-5 A0
509.926.6000 – amphenol-ns.com
Dual-Feed 350A 6-Circuit
Breaker/TFD Distribution
Panel with 5 GMTs
22. Make sure none of the interrupter positions contains operable devices.
23. For circuit breaker, or TPS/TLS output wiring, crimp dual-hole lugs onto one end of the #6- to #2-AWG copper
output wires, as required by NEC. (Work with one output wire at a time.)
24. Insulate lug barrels with UL 94V-0-rated heat-shrink tubing.
25. Clean panel terminals and lugs with a nonabrasive, nonmetallic pad.
26. If required, lightly coat antioxidant on the lugs and output BATT and RETURN terminals, and then connect the lugs
to the terminals, as shown in Figure 7. (NEC specifies only one lug and load at each output terminal.)
27. Tighten nuts to 20 in-lb. (~2.3 N•m), max.
28. Connect the other end of the output wire to load.
Compression lug
Combination nuts
Torque 10-32 KEPS nuts
to 20 in-lb. [2.27 N•m]
Note: Clean all
contact surfaces
Fig. 7: CB/TFD Output Lug Connections

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All rights reserved. 12.16.19 138661-5 A0
509.926.6000 – amphenol-ns.com
Dual-Feed 350A 6-Circuit
Breaker/TFD Distribution
Panel with 5 GMTs
29. For GMT output wiring, use #22- to #12-AWG
copper wire. (Work with one wire at a time.) At
the panel end of the wire, crimp a single-hole
ring or fork lug, as required by the NEC.
30. Clean the panel terminals and lug (if applicable)
with a nonabrasive, nonmetallic pad.
31. If required, lightly coat antioxidant on the lug/wire
and output BATT and RETURN terminals, and then
connect to terminals, as shown in Figure 8. (NEC
specifies only one load at each output terminal.)
32. Tighten the panhead screws to no more than 6.3
in-lb. (~0.7 N•m).
33. Connect the other end of the output wire to load.
ALERT! GMT fuses have a small inherent electrical resistance resulting in a small inherent power loss. For this
reason, 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 15A not exceed 70% of the fuse
rating. For example, the load for a 15A GMT fuse should not exceed 10.5A (15A x .70 = 10.5A).
34. Make sure the circuit breakers or fuse holders are switched off, empty or contain dummy devices. Also make sure
load devices and/or distribution units are disabled. (Normally, circuit breakers are OFF when the switch operator
[handle] is down.) Then install circuit breakers or fuse holders and fuses for the dual-hole lug outputs, as shown
in Figure 9.
35. Again, make sure the load devices are disabled and then install the GMT fuses, as shown.
Fig. 8: GMT Output Lug Connections

11
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All rights reserved. 12.16.19 138661-5 A0
509.926.6000 – amphenol-ns.com
Dual-Feed 350A 6-Circuit
Breaker/TFD Distribution
Panel with 5 GMTs
If possible, avoid placing high-current circuit breakers side-by-side. Not doing so causes concentrated heat collection
and subsequent power loss. Also, if not all circuit breaker positions are occupied, allow non-populated positions
between breakers.
Install the GMT fuses so that the failure indicator flags are at the top.
36. Do one of the following:
•Switch breakers to ON
•Install fuses
Then test power and polarity at input of each equipment load or distribution unit fed by a circuit breaker or fuse.
37. If possible, temporarily replace one of the operable GMT fuses with a blown fuse to check that the applicable
ALARM LED lights up red. Also, check the ALARM terminal on the rear of the panel:
Cover plate
Breaker cover plate
Mounting
screw
Circuit
breaker
Fig. 9: Installing Circuit Breaker
Fig. 10: Installing GMT Fuses

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509.926.6000 – amphenol-ns.com
Dual-Feed 350A 6-Circuit
Breaker/TFD Distribution
Panel with 5 GMTs
•Expect an open circuit (∞Ω) between Terminals Cand NC.
•Expect continuity (0Ω) between Terminals Cand NO.
Re-install the operable GMT fuse before proceeding.
38. 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 2 1/4-in. (57 mm) card that folds in half to
fit a card holder located to the right of the status LEDs.
39. Re-install the terminal cover.
40. Lastly, enable equipment loads one at a time to verify the proper operation of loads.
41. This procedure is complete.
NOTE: For service or warranty, see our amphenol-ns.com website and click on the “Support” tab, email inquiries to
[e-mail] or phone us at 1.509.926.6000.
SIDE A
POS
AMP
FUSE TYPE
DESCRIPTION
DESCRIPTION
POS
AMP
RACK/BAY #
SIDE B
POS
AMP
FUSE TYPE
DESCRIPTION
DESCRIPTION
RACK/BAY #
POS
AMP
Fig. 11: Designation Card

13
Amphenol Network Solutions
All rights reserved. 12.16.19 138661-5 A0
509.926.6000 – amphenol-ns.com
Dual-Feed 350A 6-Circuit
Breaker/TFD Distribution
Panel with 5 GMTs
1.6 Parts & Accessories
The following tables list optional and replacement items for the panel. For wire sizing and labeling, please refer to Wire
Sizing & Label Convention Chart (Amphenol Network Solutions Part No. 117995) included with your panel.
WARNING! Use only UL-listed or UL-recognized component secondary protection devices.
Table 1 – Accessories
Item
Description
Part Number
Alarm card
Standard ROHS 6/6
400223RC
Face plate
Circuit breaker face plate
090-0001-0002
Face plate blank
Replacement face plate blank
090-0001-0003
Circuit breakers
10 amp long delay
090-0052-0010
20 amp long delay
090-0052-0020
30 amp long delay
090-0052-0030
40 amp long delay
090-0052-0040
50 amp long delay
090-0052-0050
60 amp long delay
090-0052-0060
70 amp long delay
090-0052-0070
80 amp long delay
090-0052-0080
90 amp long delay
090-0052-0090
100 amp long delay
090-0052-0100
Input terminal compression lugs
1/0 AWG or #1 Weld Wire
116108
2/0 AWG or 1/0 Weld Wire
116109
3/0 AWG or 2/0 Weld Wire
116110
Ground and output terminal
compression lugs
2 AWG
114552
4 AWG
06117-04
6 AWG
06117-01
TFD fuse holder kit
For TPS/TLS fuses
090-0001-0033
GMT phony fuse
Dummy plastic slug
132748
GMT fuse safety cover
Solder splash protection
116915
Amphenol Network Solutions assumes no liability from the application or use of these products. Neither does Amphenol
Network Solutions convey any license under its patent rights or the patent rights of others. This document and the
products described herein are subject to change without notice.

14
Amphenol Network Solutions
All rights reserved. 12.16.19 138661-5 A0
509.926.6000 – amphenol-ns.com
Dual-Feed 350A 6-Circuit
Breaker/TFD Distribution
Panel with 5 GMTs
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.
Table 2 – TPS/TLS Fuse
TPS Fuses
TLS Fuses
Description
Part Number
Description
Part Number
5A
130481
80A
140640
10A
130485
90A
140641
15A
130487
100A
140642
20A
130489
110A
140643
25A
130476
125A
140644
30A
130478
40A
130482
50A
130484
60A
130486
70A
130488
Table 3 – GMT Fuses
Item
Description
Part Number of Fuse
Part Number of Colored Designation Pin
GMT Fuses
.18A Yellow (YEL)
130781
102435-21
.25A Violet (VIO)
100151
102435-2
.5A Red (RED)
004001
102435-5
.75A Brown (BRN)
004008
102435-7
1A Gray (GRY)
100991
102435-8
1.33A White (WHT)
004006
102435-9
1.5A 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)
004012
102435-13
3.5A White/Blue (WHT/BLU)
130782
102435-14
4A White/Brown (WHT/BRN)
004013
102435-15
5A Green (GRN)
004014
102435-16
7.5A 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

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509.926.6000 – amphenol-ns.com
Dual-Feed 350A 6-Circuit
Breaker/TFD Distribution
Panel with 5 GMTs
1.7 Schematic Drawing
BATT
BATT
BATT
BATT
RTN
RTN
RTN
RTN
A Input
B Input
C GND
C GND
Note: Relays shown
in alarm condition
POWER
ALARM
BREAKER
FAIL
NC
NC
NC
C
C
NO
ALARM
CIRCUIT
INPUT POWER A
GREEN
BREAKER ALARM
RED
INPUT POWER B
GREEN

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509.926.6000 – amphenol-ns.com
Dual-Feed 350A 6-Circuit
Breaker/TFD Distribution
Panel with 5 GMTs
1.8 Drawings
Front View
( 19.000 )
( 17.250 )
( 4.970 )
Top View
( 8.140 )
( 9.855)
Rear View