Connecting the loads, Dc circuit breakers and fuses, Onnecting – American Power Conversion MX28B-400 User Manual

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MX28B-400 +24V Product Manual

990-9218

ALARM

OUTPUT

TERMINAL

DESIGNATION

NO-NC-C

USER ALARM NOTES

RELAY #1
RELAY #2
RELAY #3
RELAY #4

RELAY #5
RELAY #6

MINOR

MAJOR

NO1-NC1-C1
NO2-NC2-C2
NO3-NC3-C3
NO4-NC4-C4

NO5-NC5-C5
NO6-NC6-C6
NO7-NC7-C7
NO8-NC8-C8

________________________
________________________
________________________
________________________

Table 5.6-3. Alarm Output Connections

5.7 Connecting The Loads

5.7.1 DC Circuit Breakers and Fuses

Both plug-in circuit breakers and GMT fuses can be installed in the MX28B power plant for dc
distribution circuit protection. Available plug-in circuit breakers are shown in Table 5.7-1.
Plug-in circuit breakers rated at 60A or more require two mounting positions and require a
breaker adapter kit, which is included (see kit selection information below the table). The
breaker adapter kit includes all necessary mounting hardware.

BREAKER

RATING

PART NUMBER

BREAKER

RATING

PART NUMBER

1 A

FFA-0014

40 A

FFA-0020

3 A

FFA-0015

50 A

FFA-0025

5 A

FFA-0016

60 A

FFA-0021-X *

10 A

FFA-0017

70 A

FFA-0022-X *

15 A

FFA-0028

80 A

FFA-0023-X *

20 A

FFA-0018

100 A

FFA-0024-X *

30 A

FFA-0019

* -1: adapter has #10 studs on 5/8” centers for two-hole cable lug

-2: adapter has #10 studs on ¾” centers for two-hole cable lug

-3: adapter has ¼” studs on 1” centers for two-hole cable lug

Table 5.7-1. Plug-in Circuit Breakers