Portfolio Of 3Va27 Molded Case Circuit Breakers - Siemens SENTRON 3WL10 Manual

Description
2.6 Possible uses and portfolio
2.6.2

Portfolio of 3VA27 molded case circuit breakers

The 3VA27 molded case circuit breaker is part of the Siemens 3VA portfolio that covers all
applications from 16 A to 1600 A.
Selective response
Series 3VA2 circuit breakers are designed for selective tripping combined with optimum
current limiting and a high breaking capacity.
3VA2 molded case circuit breakers have been specifically designed to meet the following
requirements:
● System-wide, high selectivity with a rated current differential of 1 : 2.5 up to the miniature
circuit breaker
● Selectivity combined with effective current limiting and high breaking capacity
● Cost-effective design / configuring of selective power distribution systems
Technically these requirements of the molded case circuit breakers are met as follows:
● Dynamically opening contact system
● Coordinated electronic trip units
Depending on use of molded case circuit breakers with a rated current differential in a ratio
of at least 1 : 2.5 and selection of suitable breaking capacity classes, you can achieve
selective tripping of the area of the installation directly affected by the fault up to the
maximum ultimate short-circuit breaking capacity.
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3VA27 molded case circuit breakers & 3WL10 air circuit breakers
Manual, 10/2018, L1V30499596002-01