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300CB08/nrg300CB08

Amphenol All rights reserved

DS-60-1891 5/6/2019 v.6

800-677-2288 | abs-go.com

300CB08

/nrg300CB08

325A Dual-Feed Circuit Breaker Panel

Specifications

Inputs:

Specifications:

Voltage range (nominal voltage)

±12VDC, ±24VDC and ±48VDC

Max. input load rating

325A @ 45°C per panel (De-rated to 200A @ 70°C)

Short circuit withstand rating

5000A

Nominal power loss at full load

Less than 45W per side @15,600W full load per side (325A x 48V);

325A @ 45°C per panel (De-rated to 200A @ 70°C)

Percentage of full power dissipation at nominal voltage

Less than 0.5%

Max. input interrupt device

125% of panel rating (for 325A rated feeds)

Optional: Vertical input terminal studs (with Keps nuts

and flat washers) for dual-hole compression lugs

Two pairs of 3/8-16 studs on 1" centers per terminal [max. lug width of

1.15" (29.2 mm)]. Torque nut (using 9/16" or 15 mm socket) to 150 in/lb.

(~17 N•m), max.

Optional: Horizontal input terminal landings (with Keps

nuts, flat washers, and bolts) for dual-hole

compression lugs

Two pairs of 3/8

” holes on 5/8”-1" centers per terminal [max. lug width of

1.5" (38.1 mm)]. Torque bolt and nut (using 9/16" or 15 mm sockets) to

150 in/lb. (~17 N•m), max.

Input wire size

#2 AWG to 250 MCM

Grounding:

Specifications:

Earth GND terminal bolts (with spring washers and flat

washers) for dual-hole compression lug

Three sets of 1/4-20 threaded holes on 5/8" centers. [max. lug width of

.50" (12.7 mm)]. Torque bolts (using 7/16" or 12 mm socket) to 50 in/lb.

(5.5 N•m), max.

Ground wire size

#14 AWG to #4 AWG

Outputs:

Specifications:

Output circuit breaker

Single-pole: 60A

Output load

Single-pole: 48A continuous

Minimum short circuit interrupt rating

5000A

Optional: Terminal blocks, single-hole compression

lugs

16, #10-32 screws [max. lug width of .50" (12.7)]. Torque screw to 20

in/lb. (2.3 N•m), max.

Optional: Output wire size, single-hole compression

lug

#14 AWG to #4 AWG

Optional: Connectors

Connector plug, latching, safe touch

Optional: Output wire size, connectors

#12 AWG to #6 AWG

Circuit breakers

EATON and AIRPAX 1U Series

Alarms:

Specifications:

Alarm relay contacts

2A @ 30 VDC; 0.6A @ 60 VDC

Max. alarm card power rating

@12V: 18mA (0.22W) @24V: 20mA (0.48W); @48V: 30mA (1.44W)

Alarm wire size

#24 AWG, typical (#26 to #20 AWG)

Terminals

Wire wrap

Dimensions:

Specifications:

300CB08/nrg300CB08

Height:

Depth:

Width:

300CB08-C/nrg300CB08-C

Height:

Depth:

Width:

1.75" (44 mm)

13.55" (344 mm)

17" (432 mm) without brackets

19” and 23” brackets included with panel

1.75" (44 mm)

18.8" (478 mm) without tie bar

22.0" (559 mm) with tie bar

17" (432 mm) without brackets

19” and 23” brackets included with panel

Tie bar included with panel