Table 8 Remote Backfeed Breaker Contacts; Table 9 Remote Backfeed Breaker Specifications - Liebert EXL Installation Manual

Table 8 Remote Backfeed Breaker specifications
Power kAIC
RBB Specification
Class rating
UL-Listed 489 (Molded Case Circuit Breaker) or UL 1066
(Low Voltage AC Power Circuit Breaker), which are
65kA
required for use in UL-listed switchgear or switchboards.
Module
The circuit breaker must have a short-time rating of 65kA
at a maximum voltage of 480V for three cycles.
625-
800kVA
UL-Listed 489 (Molded Case Circuit Breaker) or UL 1066
(Low Voltage AC Power Circuit Breaker), which are
100kA
required for use in UL-listed switchgear or switchboards.
Module
The circuit breaker must have a short-time rating of
100kA at a maximum voltage of 480V for three cycles.
UL-Listed 489 (Molded Case Circuit Breaker) or UL 1066
(Low Voltage AC Power Circuit Breaker), which are
65kA
required for use in UL-listed switchgear or switchboards.
Module
The circuit breaker must have a short-time rating of 65kA
at a maximum voltage of 480V for three cycles.
1000-
1200kVA
UL-Listed 489 (Molded Case Circuit Breaker) or UL 1066
(Low Voltage AC Power Circuit Breaker), which are
100kA
required for use in UL-listed switchgear or switchboards.
Module
The circuit breaker must have a short-time rating of
100kA at a maximum voltage of 480V for three cycles.
Table 9 Remote Backfeed Breaker contacts
Terminal Block
Item
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Breaker Auxiliary Status
Breaker ST Control
1. For TB7, Pins 1-3, each contact has:
Maximum voltage: 24VDC
Maximum current: 10mA
Wire range: #14-22AWG
Maximum length: 500 ft. (150m)
2. All external wire field-supplied.
3. All wiring must be in accordance with national and local electrical codes.
™
Vertiv | Liebert® EXL™ 625-1100kVA Installation Manual
Pin
Connect to (Description of External Item)
TB4 1 Not Used
TB4 2 Not Used
TB4 3 Not Used
TB4 4 Not Used
TB4 5 Not Used
TB4 6 Not Used
TB4 7 Not Used
TB4 8 Not Used
TB4 9 Not Used
TB4 10 Not Used
TB5 1 RBB Aux Status Common
TB5 2 RBB Aux Status, Normally Closed Contact, Closed = CB is Open
TB5 3 RBB Aux Status, Normally Open Contact, Open = CB is Open
TB5 4 RBB ST Return
TB5 5 RBB ST +48VDC
RBB General
Specification
The remote breaker must be
equipped with shunt trip and
auxiliary contacts for proper
operation with the UPS.
The remote breaker must be
equipped with shunt trip and
auxiliary contacts for proper
operation with the UPS.
| Rev. 3 | 02/17
Comments
No UPS internal fuse
protection on
rectifier and bypass
input
No UPS internal fuse
protection on the
rectifier input. The
bypass input has
fuse protection.
No UPS internal fuse
protection on
rectifier and bypass
input
UPS internal fuse
protection exists on
rectifier and bypass
input
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