Miniature Circuit Breakers
MCBs MINIATURE CIRCUIT BREAKERS
What is an MCB?
An MCB (Miniature Circuit Breaker), is a protective device that automatically interrupts electrical circuits to prevent overloads and short circuit faults.
What does an MCB do?
MCBs provide safety by:
- Detecting abnormal current flow.
- Interrupting power in fault conditions.
- Protecting equipment and wiring from damage.
Where to use MCBs?
MCBs are widely used in:
- Domestic and commercial electrical distribution boards and consumer units.
- Industrial systems to protect machinery and wiring.
MCB INSTALLATION VOLTAGES
GENERAL SPECIFICATIONS
B & C Curve 1 pole 230V AC
B & C Curve Multi-pole 400V AC
PROTEUS CONSUMER MCBs
6kA SINGLE MODULE B CURVE MCBs
- Thermo-magnetic, current limiting type
- Available in a range of operating characteristics
- Operating dolly may be locked in either the ON or OFF position
- The contacts themselves are manufactured from carefully chosen material
10kA DOUBLE MODULE C CURVE MCBs
- Thermo-magnetic, current limiting type
- Available in a range of operating characteristics
- Operating dolly may be locked in either the ON or OFF position
- The contacts themselves are manufactured from carefully chosen material
PROTEUS INDUSTRIAL MCBs
6kA – 15kA B – D CURVE MCBs
- Suitable for AX, ABX, BX, XL, CBX, MCX and PDU boards
- Bi-directional
- Thermal-Magnetic operation
- Mechanical Flag Indicator shows ON or OFF
- Operating dolly may be locked in either the ON or OFF position
- Contacts are manufactured from carefully chosen materials
- Selected for their low electrical resistance and low propensity to weld under fault conditions
6A-63A 3 MOD 4P MCBs
- Suitable for ABX, BX, XL, PX, OPBX, CBX, MCX, MX and PDU boards
- Thermal-Magnetic operation
- C Curve operating characteristics
- Mechanical Flag Indicator shows ON or OFF
- Operating dolly may be locked in either the ON or OFF position
- Contacts are manufactured from carefully chosen materials
- Selected for their low electrical resistance and low propensity to weld under fault conditions
LARGE FRAME MCBs
- Suitable for CBX range of distribution boards
- Thermal-Magnetic operation
- Current limiting, C Curve operating characteristics
- SP and TP available
- Mechanical Flag Indicator shows ON or OFF
- Operating dolly may be locked in either the ON or OFF position
- Contacts are manufactured from carefully chosen materials
- Selected for their low electrical resistance and low propensity to weld under fault conditions
