Air Circuit Breaker : M-Pact Plus Frame 3 -Withdrawable
Pre-mounted into a self-contained ‘cassette’, this versatile circuit breaker can be inserted or withdrawn via sliding rails using a racking drive mechanism controlled by a racking handle. It provides three set positions:
- Disconnected / test / connected
Any attempt to withdraw the unit whilst in service will automatically trip the breaker (by the racking position safety mechanism).
It can be racked to the disconnected position with the cubicle door closed or open.
- Carriage position switch (optional)
- Shutters and padlocking facility
- Contact indication
- Termination: rear (horizontal/vertical)
- Automatic disconnect of secondary circuits
- Easy wiring of the control circuit contacts
- Carrying handles for easy of removing the circuit breaker from the cassette
Air Circuit Breaker : M-Pact Plus Frame 1 &2 – Withdrawable
Pre-mounted into a self-contained ‘cassette’ ; this versatile circuit breaker can be inserted or withdrawn via sliding rails using a racking drive mechanism controlled by a racking handle.
It provides three set positions : Disconnected/Test/Connected.
Any attempt to withdraw the unit whilst in service will automatically trip the breaker, either by the racking position safety mechanism or by the insertion of the racking handle. It can be racked to the disconnected position with the cubicle door closed or open.
- Compliance with IEC947-2, BSEN60947-2 & VDE0660 part 101 & 107
- ASTA, KEMA and LOVAG certification to IEC947-2 & BSEN60947-2
- Rated short circuit performance from 50 kA to 80 kA (Icu=Ics=Icw) @ 415v
- Nominal ratings from 400A to 4000A
- 2 Frame Sizes: Frame 1 (400A to 2500A), Frame 2 (400A to 4000A
- 3 and 4 pole available in both fixed and withdrawable pattern
- Common height and depth for complete range
- Common accessories designed for simple installation
- Built-in safety features provided as standard
- Superior circuit protection integral to MPRO relay including combination of unrestricted, restricted and standby earth fault
- Communications facility incorporating MODBUS protocol
- Auxiliary contacts 5 n/o + 3 n/c provided as standard
- Ingress Protection – IP20 secondary contacts and IP43 door seal provided as standard with enhanced IP54 door option available
- 2 or 3 way mechanical interlocking available in cable and rod design
- Fully insulated steel shutters with front access padlocking facility as standard
- Lifting lugs for ease of removal of the breaker from the ‘cassette’
Air Circuit Breaker : M-Pact Plus – Accessories& Spare parts
A vast range of optional accessories developed to be compatible for the entire range of breakers regardless of nominal rating or frame size. For quick installation and minimal down time required, all accessories are easily field mountable and can be factory fitted or installed at site.
- Motorised spring charging unit with facility for ready to close signal
- Closing coils
- Shunt trips
- Undervoltage releases – fixed or time delayed
- Key interlock facility – Castell, Fortress, Ronis or Profalux can all be accommodated
- 2 or 3 way mechanical interlocking – Bowden cable or rod configuration
- Circuit breaker insertion interlock device for use with withdrawable units
- Mechanical operations counter
- Cable/busbar earthing device with optional indicator switch
- Rear or front access connections for fixed and withdrawable types
- Door interlocking facility
- Carriage position switch
- Circuit breaker lifting and handling truck
- Functional test units for MPRO protection relays
- Fixed pattern to withdrawable conversion kits
Air Circuit Breaker : M-Pact Plus Frame 3 -Fixed pattern
M-Pact Plus frame 3 fixed pattern air circuit breakers incorporate a stored energy mechanism. The spring can be charged either manually or electrically via a motor operator that is automatically activated after the closing operation.
IP43 front panel and door escutcheon seals are standard features. For enhanced protection, an optional IP54 door panel is also available.
- Trip-free operating mechanism
- Positive ‘ON/OFF’ contact indication
- Mechanical/electrical anti-pumping device
- Charging spring status indication
- Manual spring charging handle
- Auxiliary switches 4 NO and 6 NC, 10A 500V (standard)
- Mechanical trip alarm switch (1 NO) (potential free)
- Padlockable push-button cover
- Mechanical cable interlocking (optional)
- Termination : horizontal
- Electrical spring charge indication
- Easy replacement of main and arcing contacts
Air Circuit Breaker : M-Pact Plus Frame 1 &2 – Fixed Pattern
Designed to match the most demanding requirements for rapid detection and safe interruption of faults. Our latest generation of M-PACT PLUS ACB and associated MPRO protection relay incorporate a formidable array of circuit protection and system management. Fixed pattern breakers incorporate a trip free, stored energy mechanism that can be manually or electrically charged via a motor mechanism.
- Compliance with IEC947-2, BSEN60947-2 & VDE0660 part 101 & 107
- ASTA, KEMA and LOVAG certification to IEC947-2 & BSEN60947-2
- Rated short circuit performance from 50 kA to 80 kA (Icu=Ics=Icw) @ 415v
- Nominal ratings from 400A to 4000A
- 2 Frame Sizes: Frame 1 (400A to 2500A), Frame 2 (400A to 4000A)
- 3 and 4 pole available in both fixed and withdrawable pattern
- Common height and depth for complete range
- Common accessories designed for simple installation
- Built-in safety features provided as standard
- Superior circuit protection integral to MPRO relay including combination of unrestricted, restricted and standby earth fault
- Communications facility incorporating MODBUS protocol
- Auxiliary contacts 5 n/o + 3 n/c provided as standard
- Ingress Protection – IP20 secondary contacts and IP43 door seal provided as standard with enhanced IP54 door option available
- 2 or 3 way mechanical interlocking available in cable and rod design