Applications; Use Of The 3Va Ul Molded Case Circuit Breakers In Line Protection; Applications In Line Protection - Siemens Sentron 3VA Manual

Applications

3.1

Use of the 3VA UL molded case circuit breakers in line protection

3.1.1

Applications in line protection

The main applications of the circuit breakers as line protection components are:
● Feeder circuit breaker of machines
● Branch circuit breaker for predominantly resistive loads
● Group switch for loads that are jointly protected
● In main switchboards to provide protection for cables to subdistribution boards
● In subdistribution boards to provide protection for cables to small distribution boards
● Protection for mixed load (e.g. machine, lighting system, heating system, etc.)
The trip units for line protection are designed to provide overload and short-circuit protection
for:
● Cables
● Conductors
● Non-motor loads
3VA molded case circuit breakers with UL and IEC certification
Manual, 01/2019, L1V30435333-01
3
99