Siemens WL - Page 29

WL Circuit Breaker
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WL Selection and Application Guide • 2005
Technical Data
WL Circuit Breakers ANSI / UL 1066
Breaker Ratings
Frame Size II
Frame Rating 800 1600 2000 3200
Rating Class
N S H L F N S H L F S H L F S H L
Interrupting Current I
cs
254V AC 50 65 85 100 200 50 65 85 100 200 65 85 100 200 65 85 100
(kAIR RMS) 50/60 Hz 508V AC 50 65 85 100 200 50 65 85 100 200 65 85 100 200 65 85 100
635V AC 50 65 65 85 200 50 65 65 85 200 65 65 85 200 65 65 85
Short-time Withstand
Current I
cw
(kA RMS)
50/60 Hz 0.5 s 50 65 65 85 20 50 65 65 85 20 65 65 85 20 65 65 85
Extended Instantaneous 285-
Protection 508V AC 50 65 85 100 200 50 65 85 100 200 65 85 100 200 65 85 100
(kA RMS) 635V AC 50 65 65 85 200 50 65 65 85 200 65 65 85 200 65 65 85
Close and Latch Ratings
(kA RMS) 50/60 Hz 50 65 65 85 75 50 65 65 85 75 65 65 85 75 65 65 85
Rating Plug Range
200A to 800A 200A to 1600A 200A to 2000A 200A to 3200A
Endurance Rating
(switching operations
with maintenance)
Frame Size III
Frame Rating 3200 4000 5000
Rating Class M F H L M F H L M F
Interrupting Current I
cs
254V AC 150 200 85 100 150 200 85 100 150 200
(kAIR RMS) 50/60 Hz 508V AC 150 200 85 100 150 200 85 100 150 200
635V AC 85 200 85 85 85 200 85 85 85 200
Short-time Withstand
Current I
cw
(kA RMS)
50/60 Hz 0.5 s 100 40 85 100 100 40 85 100 100 40
Extended Instantaneous 254V AC
Protection 508V AC 150 200 85 100 150 200 85 100 150 200
(kA RMS) 635V AC 85 200 85 85 85 200 85 85 85 200
Close and Latch Ratings
(kA RMS) 50/60 Hz 100 40 85 100 100 40 85 100 100 40
Rating Plug Range 800A to 3200A 800A to 4000A 800A to 5000A
Endurance Rating
(switching operations
with maintenance)
Maintenance means: replacing main contacts and arc chutes (see operating instructions).
M-Class main contacts can be replaced by Siemens personnel only.
Do not apply breaker at 635V AC on a system with available fault current > 85kA RMS.
1
1
1
2
2
2 2
2
2
Mechanical 15,000 15,000 15,000 15,000
Electrical 15,000 15,000 15,000 15,000
Mechanical 10,000 10,000 10,000
Electrical 10,000 10,000 10,000
2
2 2
2
2
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