Molded Case Circuit Breakers (MCCBs)

Sends an alarm signal when the circuit breaker trips.
– 1NO/1NC.
– Rated Operational Voltage 240/480Vac, 110/220Vdc

Prevents circuit breaker from closing during an under-voltage situation.
– Rated Operational Voltage 100-127Vac, 220-240Vac, 24-30Vac, 48Vdc for M2HV and M3HV.
– Interrupts Automatically ≥10ms, ≤60ms

Rear connection kit allows for the connection of cables or busbars to the back side of an MCCB instead of the front (where the normal terminals are)

Sends an alarm signal when the circuit breaker trips.
– 1NO/1NC.
– Rated Operational Voltage 240/480Vac, 110/220Vdc

Allows circuit breaker to be opened remotely.
– Rated Operational Voltage 100-130Vac, 220-240Vac, 24Vdc, 110-125Vdc.
– Interrupts Automatically ≥10ms, ≤60ms

Mechanical Interlock is a safety locking device that prevents the simultaneous operation of two MCCBs at a time (ensuring that one device is OFF while the other is ON, or both are OFF)

Phase barrier is a thin insulating plastice piece placed between the terminals of different phases of an MCCB.

Allows circuit breaker to be opened remotely.
– Rated Operational Voltage 100-130Vac, 220-240Vac, 24Vdc for M2HV and M3HV.
– Interrupts Automatically ≥10ms, ≤60ms

Prevents circuit breaker from closing during an under-voltage situation.
– Rated Operational Voltage 100-130Vac, 220-240Vac, 24Vdc, 110-125Vdc.
– Interrupts Automatically ≥10ms, ≤60ms

Charging motor / remote operator.
– Avaialble for MD3HVF in 24Vdc and 220Vdc/ac.

Enables quick installation and removal of the MCCB without the need to disconnect or rewire the load and line terminals.
– Available in 3-pole only for M1, M2 and M3.

Used to convert a MCCB from lug-type cable connections to a busbar connection interface.
– Available for M1 MCCB (CKLB21) and M2 MCCB (CKLB22) only.

Indicates the state of a circuit breaker (open/close).
– 1NO/1NC.
– Rated Operational Voltage 240/480Vac, 110/220Vdc

Identify breaker frame size to select corresponding internal handle mechanism (IHM).
– The shaft (ES) is selected based on the length needed and diameter required. Length varies from 7.9in, 12.6in and 19.7in.
– The internal operating handle (IOH) is selected based on the breaker frame size. M1 or M2 uses IOH2, with IOH3.
– The handle (NEH) with the matching shaft diameter is selected based on the desired color combination and UL rating

Charging motor / remote operator.
– Avaialble for M2HV and M3HV in 120Vac//dc, 240Vac/dc and 24Vdc.

NEMA extended rotary handle mechanism selection consists of 3 components (sold separately): operating mechanism (HM), shaft (ES), and rotary handle (NEH).
– H2HVA is applicable with M2HV frame; Hole Size 10×10 mm2, HM3HVB is applicable with M3HV frame; Hole Size 12×12 mm2
– Extended shaft (ES*A) with shaft length from 200mm to 500mm for M2HV and M3HV.
– Rotary Handle (NEH), Hole Sizes 10×10 mm2 and 12×12 mm2 available for M2HV and M3HV.

Sends an alarm signal when the circuit breaker trips.
– 1NO/1NC.
– Rated Operational Voltage 125Vac, 250Vac, 480Vac, 30Vdc, 125Vdc, and 250Vdc.

Used for mounting M1 and M2 MCCBs on a DIN Rail.

NEMA extended rotary handle mechanism selection consists of 3 components (sold separately): operating mechanism (HM), shaft (ES), and rotary handle (NEH).
– HMD3A; 2P Operating Mechansim for MD3HVF, Hole Size 10×10 mm2.
– Extended shaft (ES*A) with shaft length from 200mm to 500mm for MD3HVF.
– Rotary Handle (NEH), 65mm and 130mm, available for MD3HVF.

Indicates the state of a circuit breaker (open/close).
– 1NO/1NC.
– Rated Operational Voltage 125Vac, 250Vac, 480Vac, 30Vdc, 125Vdc, and 250Vdc.

Terminal lugs are connectors that secure incoming and outgoing electrical cables to an MCCB.
– They are Al/CU rated and included with molded case circuit breakers standard.

M1-M5 Flange handle mechanism selection is separated into 4 components (sold separately); flange handle (FH), flex shaft (FST), cabinet operating mechanism (OMC) and breaker operating mechanism (OMB)
– Flange Handle is available in a Compact fixed length (9.57in) and an Adjustable legth (11.81in – 13.62in). Both are UL4,4X Rated.
– The Flex Shat length is available from 3 feet to 6 feet for M1 – M6 and 7 feet for M6.

Indicates the state of a circuit breaker (open/close).
– 1NO/1NC.
– Rated Operational Voltage 240/480Vac, 110/220Vdc

ELM20 is used to mitigate arc hazards and protect personal safety during product maintenance.
– It is used in coordination with the Molded Case Circuit Breakers M6- 3P4W with ARMS protection function.

NEMA extended rotary handle mechanism selection consists of 3 components (sold separately): operating mechanism (HM), shaft (ES), and rotary handle (NEH).
– The Operating mechanism (HM) is available for 2 and 3 poles and uses a shaft diameter of 10mm2 and 12mm2.
– The shaft is availble in different lengths: 7.9in, 12.6in and 19.7in.

The neutral current sensor is a device used to measure the electrical current flowing through the neutral wire in an electrical system. M6 3P4W protects circuit from ground fault, without cutting off the circuit due to faults on neutral.
– Rated operational current 800A~1200A
– Available only for M6 MCCB.

Charging motor / remote operator.
– Avaialble for M1 ~ M6 in 120Vac//dc, 240Vac/dc and 24Vdc.

Provides a secure and extended electrical connection between the MCCB and the busbar or other downstream components.
– Available for M6 frame breaker only.

Mutli-wire terminal lug kits include: three terminal lugs and one terminal shield.
– They come in 3-Hole and 6-Hole configuration.
– Al/CU rated.

Handle Lock is used for isolation and lockout purposes.
– It is used for keeping the MCCB toggle switch in position and locking it with a padlock.
– Available in M1 – M6 MCCB frame size.

Allows circuit breaker to be opened remotely.
– Rated Operational Voltage 12Vdc for MD3HVF.
– Interrupts Automatically ≥2ms, ≤5ms
– Power consumption 3~5W.

Terminal cover is a protective piece that fits over the electrical terminals of an MCCB.

IEC Coupled rotary handle