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EATON HFWF Series Complete Molded Case Circuit Breakers, F Frame

Eaton HFWF Series molded case circuit breakers (MCCBs) are used for protecting electrical systems against overloads and short circuits, ensuring the safety of personnel and equipment.

Filter
StyleModelMPNPrice
A
HFWF1016L
HFWF1016L-
RFQ
A
HFWF1016VL
HFWF1016VL£1,094.36
A
HFWF1020L
HFWF1020L-
RFQ
A
HFWF1020VL
HFWF1020VL£1,094.36
A
HFWF1025L
HFWF1025L£1,112.30
A
HFWF1032L
HFWF1032L-
RFQ
A
HFWF1032VL
HFWF1032VL£1,094.36
A
HFWF1040VL
HFWF1040VL£1,094.36
A
HFWF1050L
HFWF1050L-
RFQ
A
HFWF1050VL
HFWF1050VL£1,459.15
A
HFWF1063L
HFWF1063L£1,009.09
A
HFWF1063VL
HFWF1063VL-
RFQ
A
HFWF1080VL
HFWF1080VL£1,009.09
A
HFWF1100L
HFWF1100L-
RFQ
A
HFWF1100VL
HFWF1100VL£1,637.03
A
HFWF1125VL
HFWF1125VL-
RFQ
A
HFWF1160L
HFWF1160L£3,506.34
A
HFWF1160VL
HFWF1160VL£3,506.34
B
HFWF2016L
HFWF2016L-
RFQ
B
HFWF2016VL
HFWF2016VL£3,257.71
B
HFWF2020L
HFWF2020L-
RFQ
B
HFWF2020VL
HFWF2020VL-
RFQ
B
HFWF2025L
HFWF2025L£3,257.71
B
HFWF2032L
HFWF2032L£3,257.71
B
HFWF2032VL
HFWF2032VL-
RFQ
B
HFWF2040VL
HFWF2040VL-
RFQ
B
HFWF2050L
HFWF2050L£3,257.71
B
HFWF2050VL
HFWF2050VL£3,257.71
B
HFWF2063VL
HFWF2063VL-
RFQ
B
HFWF2080VL
HFWF2080VL-
RFQ
B
HFWF2100L
HFWF2100L£2,848.67
B
HFWF2160L
HFWF2160L£9,882.01
B
HFWF2160VL
HFWF2160VL£9,882.01
C
HFWF2200VL
HFWF2200VL-
RFQ
B
HFWF2225VL
HFWF2225VL£9,882.01
D
HFWF3016L
HFWF3016L-
RFQ
D
HFWF3016VD14Z04
HFWF3016VD14Z04£3,814.52
D
HFWF3016VL
HFWF3016VL£2,877.28
D
HFWF3020L
HFWF3020L£4,196.00
D
HFWF3020VD14Z04
HFWF3020VD14Z04£3,814.52
D
HFWF3020VL
HFWF3020VL£4,196.00
D
HFWF3025L
HFWF3025L£4,196.00
D
HFWF3025V
HFWF3025V£3,471.86
D
HFWF3032D17
HFWF3032D17£4,196.00
D
HFWF3032L
HFWF3032L£4,196.00
D
HFWF3032V
HFWF3032V-
RFQ
D
HFWF3032VD14Z04
HFWF3032VD14Z04£3,814.52
D
HFWF3032VL
HFWF3032VL-
RFQ
D
HFWF3040D17
HFWF3040D17-
RFQ
D
HFWF3040L
HFWF3040L£4,196.00
D
HFWF3040V
HFWF3040V£3,200.86
D
HFWF3040VD14Z04
HFWF3040VD14Z04£3,814.52
D
HFWF3040VL
HFWF3040VL£2,877.28
D
HFWF3050D17
HFWF3050D17£4,264.78
D
HFWF3050L
HFWF3050L-
RFQ
D
HFWF3050V
HFWF3050V£4,667.87
D
HFWF3050VD14Z04
HFWF3050VD14Z04-
RFQ
D
HFWF3050VL
HFWF3050VL£4,196.00
D
HFWF3063D17
HFWF3063D17£4,196.00
D
HFWF3063L
HFWF3063L£4,196.00
D
HFWF3063V
HFWF3063V£4,667.87

Working Mechanism

  • Eaton HFWF Series molded case circuit breakers feature a non-interchangeable, thermal-magnetic trip unit.
  • The thermal trip comprises a bi-metallic strip that gets heated and bends when an overcurrent passes through the conductors, causing the contacts to open and interrupt the current flow.
  • The magnetic trip, on the other hand, has an electromagnetic component that detects the presence of a short circuit.
  • As the current rises abruptly, a magnetic field is created that causes the displacement in the tripping coil, causing the contacts to open again and stop the current flow.

Features

  • They feature a compact design that saves space and makes installation easier.
  • These MCCBs are integrated with fixed thermal & fixed magnetic trip units that avoid nuisance tripping on mild overloads but respond instantly when exposed to faulty currents.
  • They have a manual trip feature that is controlled by the breaker's toggle handle and a PUSH-TO-TRIP button to trip during a power failure or troubleshooting.
  • These circuit breakers are available in one / two / three / four pole configurations with a high interrupting capacity for complete safety.
  • Selected MCCBs are equipped with terminals on the load end for quick installation on panelboards and are designed to withstand temperatures up to 50 degrees Celsius.

Standards and Approvals

  • IEC
  • UL

Frequently Asked Questions

What are molded cases?

A molded case houses the internal components of the circuit breaker, including the trip unit, contacts and operating mechanism. It is made of a high-strength, non-conductive material that provides insulation and protection to the components of a circuit breaker.

How do I reset the circuit breaker once it is tripped?

The circuit breaker can be easily reset by moving the toggle handle to the extreme OFF position and then to the ON position to restore the current. However, during a thermal trip, the circuit breaker cannot be reset until the thermal element (bi-metallic strip) cools down.

What is the function of a PUSH-TO-TRIP button?

The PUSH-TO-TRIP button is used for periodically exercising the operating mechanism and checking the proper functioning of the trip unit.

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