Maximum current draw of enclosures, Short circuit current rating (sccr) – ETC Unison Auxiliary Enclosure Series User Manual
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Unison Enclosure Installation
Maximum Current Draw of Enclosures
Short Circuit Current Rating (SCCR)
Enclosure
Type
Phase Type
UL Market
Maximum Current
Draw
240V Maximum
Current Draw
a
a)With 15A modules.
AX6
Single phase (1Ø)
120A
–
Three phase (3Ø)
80A
60A
AX12
Single phase (1Ø)
240A
–
Three phase (3Ø)
160A
120A
AX12X
Single phase (1Ø)
480A
–
Three phase (3Ø)
320A
240A
Enclosure Configuration
SCCR at
100-120
VAC
a
a)Ratings are for three phase systems.
SCCR at
240-277
VAC
a
DRd6 with AX6 main circuit breaker enclosure
100,000A
65,000A
DRd12 with AX12X (cross-bussed) main lug enclosure
22,000A
22,000A
DRd12 with AX12 main circuit breaker enclosure
100,000A
65,000A
DRd12 with AX12X main circuit breaker enclosure
100,000A
65,000A
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