Description
2.5 Basic properties of the circuit breaker (3WL10 / 3VA27)
3VA27 molded case circuit breakers & 3WL10 air circuit breakers
Manual, 10/2018, L1V30499596002-01
17
3WL10 air circuit breaker
The 3WL10 air circuit breaker is a current-carrying circuit breaker with IEC certification
(3WL1) and is an addition to the existing 3WL1 IEC portfolio. It has the following
characteristics:
● Frame size 0 (FS 0) with a rated current I
n
of 630 A to 1250 A
● Optionally available either as a fixed-mounted version or as a withdrawable version
● An especially high I
cw
value (up to 50kA 1s) and an I
cu
value (up to 66kA @440V)
3VA27 molded case circuit breaker
The 3VA27 molded case circuit breaker is a current-limiting circuit breaker with IEC
certification and is an addition to the existing 3VA IEC portfolio. It has the following
characteristics:
● Frame size 1600 A with a rated current I
n
of 800 A to 1600 A
● Choice of two designs:
– as a toggle operating mechanism, e.g. as an additional manual operating mechanism
– as a stored energy spring mechanism for integration of internal spring charging motors
(external dimensions are not affected by this)
● Optionally available either as a fixed-mounted version or as a withdrawable version
● An especially high I
cu
value (up to 110kA @415V) and an I
cw
value (up to 20kA 1s)
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