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Product description
2. Cabinet with operating mechanism
2.1 Base Cabinet
The base cabinet is made of painted mild steel. The
cabinet houses a spring operated mechanism which
is mechanically linked to all three poles. The cabinet
also includes the followings:
Anti-condensation heater
Circuit breaker status indicator
Mechanical operation counter
Breaker control switches
Anti-pumping relay
AC / DC fuses
Auxiliary wiring
Terminal blocks
2.2 Operating mechanism
For high operational reliability and minimal maintenance,
a simple and robust spring operated mechanism is used.
Features
O-C-O operation without recharging
Closing spring is charged by motor in less than
15 secs.
Mechanical / electrical anti-pumping
Provision for manual charging
Suitable for high speed auto-reclosing
Manual closing and tripping arrangement
Mechanical ON - OFF and SPRING CHARGED
indication
Auxiliary switch: 13 NO + 13 NC
Additional tripping solenoid(optional)
3. Structure
The breaker is supplied with galvanised steel strucutre, if ordered, which supports the breaker on the foundation
4. Standards
The circuit breakers comply with the requirements according to IEC and are restrike-free when breaking a
capacitive load.
Operating mechanism with electrical accessories
4
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