NewMar FDP 2020 Instructions for use

0522-03A
February 15, 2006
www.newmartelecom.com
P.O. Box 1306, Newport Beach, California 92663 ~ Phone: [phone] ~ Fax: [phone] ~ [email protected]
FUSE PANEL
Technical Practice
FDP 2020
20/20 GMT
NEBS Level 3 Certified
FEATURES
Polarity insensitive (+/-24 or +/-48 Vdc) battery voltage
This panel can operate at 200 Amps of output current per panel (100 Amps per Bus)
2 isolated groups of 20 GMT fuses each
2 Isolated battery returns
Green power LEDs provided for each bus
Common (C), normally closed (NC), normally open (NO) alarm extensions (2 sets of dry form “C”
contacts)
Both GND and - BATTERY activated external alarms (alarms that originated outside panel)
Single 1.75” mounting height (single panel space)
Brackets supplied are reversible for both 19" and 23" racks and 1.75" mounting spaces

Cable management bar (aka. towel bar) on rear panel included (flush style)

1. GENERAL DESCRIPTION
1.1. The Newmar model FDP 2020 Fuse
Panels provide up to 40 circuits for the
distribution of DC power to equipment. Each
of the 40 circuits is individually protected by a
GMT style telecommunication fuse located on
the panel's faceplate. Alarm circuits are
provided to indicate and extend alarm
conditions when faults occur.
1.2. Input wiring is connected to a high
current, 2-hole lug input block located at the
rear of the panel. Each group of fuses or bus
has its own completely isolated inputs,
allowing the distribution of two battery voltages
through the same panel.
1.3. The power is distributed to the load side
equipment through GMT style fuses. There are
20 fuses per fuse group and two groups per
panel. Each fuse position is available for
installer connection at the rear of the panel. A
designation card is provided for keeping
records of which position is connected to
which equipment and what amperage of fuse
is to be used.
1.4. Alarm circuits are provided to alert service
personnel of fault conditions. A Fuse alarm is
caused when any of the GMT distribution
fuses opens. A red LED on the faceplate will
illuminate to signal a fuse alarm. These fuse
panels have two sets of common (C),
normally closed (NC), normally open (NO)
contacts for Fuse Alarms or battery or ground
activated external Alarms.
1.5. The FDP 2020 Fuse Panels are made
from 0.050" steel and painted black. Single
rack height panels are shipped with universal
brackets attached to panel which will fit both
19" and 23" wide racks and use only one 1.75"
panel space. A second loose set of mounting
brackets are provided which allow mounting
on 1” rack mounting hole centers (standard
brackets are 1_” centers.) The panel has a
clear L shaped lexan to protect the wiring
connections on the back of the panel.
2. APPLICATION
2.1. The N250140-N-L0522 / FDP 2020 Fuse
Panels are designed to be used in the
distribution of DC power. They are rack mount
panels that can provide fused DC power to up
to 40 individual circuits (20/20 GMT), or 20
pieces of equipment, providing redundant
battery feeds to each.
3. CIRCUIT DESCRIPTION
3.1. Power is connected to the fuse panel via
plastic input blocks located at the rear of the
panel, which are _” studs on 5/8” centers
(Torque 5.5 ft-lbs). These inputs are high
current stud blocks that supply current to the
fuse panel.
3.2. Distribution of current from each bus is
provided by GMT style fuses. Each bus has
20 fuse holders for distribution, fuses F1 to
F20 for each Bus A and Bus B. Each fuse
position is made available at the rear of the
fuse panels. Maximum output current of each
fused position is rated at 15 Amps, provided
the maximum bus current is not exceeded.
3.3. Fuse alarm circuitry provides 2 sets of dry
form “C” contacts. In the event of a fuse or
external alarm, both sets of normally open
contacts will close, providing a connection
between “NO” and “C” terminals on each set.
Note: Both sets of relay contacts operate
together in the event of a fuse alarm or an
external alarm.

4.2 INSTALLATION
Please read completely before beginning.
4.1. Unpack and inspect the Newmar Fuse
Panel for possible damage incurred during
shipping. If damage is found, file a claim
immediately with the carrier and notify
Newmar.
4.2. Once the panel is unpacked, verify that
there are two mounting brackets. Fasten the
mounting brackets to the sides of the fuse
panel using the screws provided, such that it
will fit the rack you wish to mount the panel in.
Single rack height panels have a universal
bracket that allows the panel to be mounted
on either 19" or 23" wide equipment racks and
can be installed for flush mounting of the fuse
panel, or for a 5" offset mounting.
4.3. Mount the fuse panel on the equipment
rack using the thread forming #12-24 rack
mounting screws and lock washers provided.
WARNING: For safety reasons all wiring
should be done with the power source
removed (when possible.)
4.4. Remove the distribution fuse feeding the
input cables that are to be connected to the
new panel. Using input cables specified by
the Job Engineer, hook up the input cables to
the input terminal block on the fuse panel.
This panel has two sets of inputs. Torque _”
steel nuts to 5.5 ft-lbs.
Please be sure to observe the proper
polarity.
4.5. The battery outputs are available at the
terminals blocks at the rear of the panel. Each
fuse position is numbered and that fused
circuit is available at the terminal block
position with the same number.
4.6. All battery return (ground) connections are
terminated on the isolated battery return on
the
rear of the panel. Note that these returns are
isolated from the chassis.
4.7. For this fuse panel you have common
(C), normally closed (NC), normally open (NO)
alarm extensions (two sets of dry “C”
contacts.) You have ground activated external
alarm and battery activated external alarm
(alarms that originated outside the panel.)
4.8. CHASSIS GROUND; For safety reasons,
and as recommended by NEBS, the chassis
should be electrically connected to the rack
ground. From step 4.3. the panel should
already be ground to the rack via the #12-24
thread forming rack screws and outside tooth
lock washers. In addition to grounding via the
mounting brackets, it is recommended you
ground the chassis using a ground cable and
the #10 bolt and locks on side of chassis (#10
screw torque; 2ft/lbs or 2.7Nm.)
4.9. Power up the panel by installing the
distribution fuse supplying the panel. The
panel should power up and have no red LEDs
illuminated. Green power LEDs should be lit.
4.10. Install panel output distribution fuses as
required. Use the provided designation card
to keep a record of which equipment is
connected to which circuit and what the fuse
rating is.
4.11. If you wish to verify the Fuse alarm
circuit, you can insert a blown or open fuse
into one of the empty fuse holders. A red Fuse
Alarm LED should light on the faceplate and
the alarm extension relay should activate and
extend appropriate alarm. If you wish to verify
the EXT Alarms you can connect GND or -BAT
and the red EXT Alarm should light on the
faceplate and the alarm extension relay
should activate and extend appropriate alarm.
Note: If you have any questions, suggestions,
or problems, please don't hesitate to call
Newmar Technical Support at [phone]
or contact us through the Internet at
http//www.newmartelecom.com. Your input
helps us in our ongoing product improvement
process that benefits both of us. Thank You.

5. SPECIFICATIONS
5.1. Voltage -/+24 or -/+48 VDC Typical
-/+22 to -/+55 VDC Max.
5.2. Current/Fuse 15 Amps Maximum
5.3. Current/Bus 100 Amps Max./Bus
5.4. Current/Panel 200 Amps
5.5. Output Fuse GMT Style Fuse Holders
5.6. Output/Bus 40 Fuses (20 per bus)
5.7. Output/Panel 2 Busses per Panel
5.8. Input Block** Two _” Stud on 5/8 center
5.9. Output Block #26 AWG to 12 AWG wire
**Torque = 5.5 ft-lbs
5.10. Relay Contacts 2 Amps Max.
5.11. Dimensions 1_”H, 17”W,10_”D
(excluding
brackets)
5.12. Rack Mounting 19” and 23” Racks
for 1” and 1.75”
Panel Spaces
5.13. Weight Apprx. 8 Lbs
5.14. Operating Temp. -20° to +60°C
(-5° to +140°F)
5.15. Color Black
6. WARRANTY
This product manufactured for Newmar by
Noran Tel is warranted to be free from defects
from workmanship and components for a
period of two years from the date of shipment.
During this period any defective products
shipped prepaid to Newmar will be repaired
or replaced at our discretion and returned at
no further cost to the customer. Newmar shall
not be liable for any consequential or indirect
damage of any type or nature, nor for any cost
of reinstallation. Any product that has been
subject to improper installation, unauthorized
alteration, accident or misuse is rendered void
of warranty.
Newmar also provides a repair service for
products not covered by warranty. Charges
will be levied for labor, components, and
transportation.
To return a unit for repair contact the Newmar
Shipper/Receiver by telephone and obtain a
Return Material Authorization Number (RMA.)
Be prepared to provide the following
information:
1. Product Name
2. Product Model Number
3. Product Serial Number
4. Your contact person and phone number.
5. Your company name and return address
Package the unit in its original shipping carton
or adequate substitute, along with a
description of the problem or defect. Clearly
mark the outside of the carton with Return
Material Authorization Number and send the
unit to the address shown below:
NEWMAR
2911 West Garry Ave.
Santa Ana, CA 92704
Phone: [phone]
Fax: [phone]
E-mail: [email protected]
Internet: http://www.newmartelecom.com

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