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ABB / General Electric THFK236225 Molded Case Circuit Breaker

  • 225A
  • 3 Pole
  • Bolt-On
ABB / General Electric THFK236225
Molded Case Circuit Breaker
Brand ABB / General Electric
SKU THFK236225
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  • 225A
  • 3 Pole
  • Bolt-On

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ABB / General Electric THFK236225 - 225A 3 Pole Molded Case Circuit Breaker

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$795.88 In Stock

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Description

Designed to handle demanding loads, this 225-amp F-Frame breaker delivers reliable long-time and instantaneous fault protection. The unit incorporates an interchangeable trip mechanism and load lugs. It utilizes a bolt-on configuration tailored for GE A-Series panelboards. Maintenance teams can deploy this to swap out obsolete Spectra SFHA36AT0250 breakers equipped with SRPF250A225 plugs. Capable of interrupting 65kA at 240V, it provides robust defense against short circuits.

Specifications

Key specifications
Brand ABB / General Electric
Part Number THFK236225-R
Series THFK
Amperage 225A
Poles 3
Mounting Style Bolt-On
Voltage 240VAC, 480VAC, 600VAC, 250VDC
Phase 3
AIC Rating 65kA @ 240VAC, 25kA @ 480VAC, 18kA @ 600VAC, 10kA @ 250VDC
Fit and installation
Frame Type THFK
Terminal Type Lugs
For Use With GE A-Series Panelboards, Switchboards, Motor Control Centers
Wire Gauge 4 AWG - 300 kcmil (Cu/Al)
Max Wire 300 kcmil
Min Wire 4 AWG
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed Thermal, Adjustable Magnetic
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch
Accessories Load Side Lugs (TCAL24)
Standards CSA C22.2 No. 5, HACR Rated, NEMA AB 1, UL 489
Approval CSA, UL
Temp Rating 40C
Construction Features HACR Rated, Interchangeable Trip, High Interrupting Capacity

Product FAQs

6 answers
What equipment is compatible with the THFK236225 circuit breaker?

This bolt-on breaker is designed for installation in GE A-Series panelboards, switchboards, and motor control centers.

What wire sizes are supported by the load side lugs?

The included load side lugs accept copper or aluminum conductors ranging from 4 AWG to 300 kcmil.

What does the adjustable magnetic trip feature allow the user to do?

The adjustable magnetic trip lets electricians set the instantaneous short-circuit pickup level to coordinate with downstream devices or specific load inrush currents, while the thermal overload protection remains fixed.

Can the trip unit be swapped out on this breaker frame?

Yes, this F-frame breaker features an interchangeable trip unit design, allowing you to change the trip characteristics without replacing the entire breaker block.

What does the THFK prefix signify in the GE catalog number?

The THFK prefix indicates a high-interrupting F-frame molded case circuit breaker. The H denotes a higher interrupting capacity compared to standard TFK frames.

How should this breaker be applied in DC systems?

When used in 250V DC systems, ensure the available fault current does not exceed the 10kA DC interrupting rating. Follow manufacturer guidelines for wiring multiple poles in series if required for proper DC arc interruption.

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