ABB / General Electric TB43225 Molded Case Circuit Breaker
- 225A
- 3 Pole
- Bolt-On
Quantity
ABB / General Electric TB43225 - 225A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Built for heavy-duty industrial applications, this 225-amp three-pole breaker requires separate current limiters to achieve its maximum 200kAIC rating at 600VAC. The TB43225 features a rugged bolt-on design that integrates seamlessly into GE Tri-Break panelboards and motor control centers. By utilizing an interchangeable thermal-magnetic trip unit, facility managers can adjust magnetic settings to coordinate with downstream equipment and prevent nuisance tripping during motor startups.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | TB43225 |
| Series | TB4 |
| Amperage | 225A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 200kA @ 240VAC, 200kA @ 480VAC, 200kA @ 600VAC |
| Frame Type | TB4 |
|---|---|
| Terminal Type | Lugs |
| For Use With | GE Tri-Break Panelboards, GE Switchboards, Motor Control Centers |
| Wire Gauge | 6 AWG - 600 kcmil (Al/Cu) or (2) 2/0 AWG - 250 kcmil (Al/Cu) |
| Max Wire | 600 kcmil |
| Min Wire | 6 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Lugs, Current Limiters |
|---|---|
| Accessories | Lugs Not Included, Current Limiters Required (Not Included) |
| Standards | NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Current Limiting, Internally Fused, Interchangeable Trip, Common Trip, Trip-Free Mechanism, Quick-Make/Quick-Break |
| Special Features | Integrally Fused |
Product FAQs
6 answersWhat types of enclosures or panels is the GE TB43225 designed for?
This bolt-on breaker is specifically designed for use in GE Tri-Break panelboards, GE switchboards, and compatible motor control centers. It is not intended for standard residential load centers.
What wire sizes are accepted by the lugs on the TB43225?
The standard lugs accept either a single wire ranging from 6 AWG to 600 kcmil or two wires ranging from 2/0 AWG to 250 kcmil. Both aluminum and copper conductors are supported.
How does the adjustable magnetic trip function work on this breaker?
While the thermal overload protection is fixed at 225 amps, the instantaneous magnetic trip is adjustable. This allows electricians to fine-tune the short-circuit response to coordinate with other breakers and prevent nuisance tripping during motor startups.
What does the 200kAIC rating mean for the TB43225?
The 200,000 amp interrupting capacity (200kAIC) indicates this Tri-Break breaker can safely clear extremely high fault currents without sustaining damage. This rating applies across 240V, 480V, and 600V AC systems, making it suitable for heavy industrial applications with high available fault currents.
Why is this breaker listed as both ABB and General Electric?
ABB acquired GE Industrial Solutions in 2018. Depending on the manufacturing date, the TB43225 may feature either GE or ABB branding, but the physical dimensions, mounting, and electrical specifications remain identical.
What precautions are required when replacing a breaker in a GE Tri-Break panelboard?
Always verify that the panel is completely de-energized before attempting to unbolt the existing breaker. Because this unit handles up to 600VAC and 200kAIC available fault currents, proper arc flash PPE and lockout-tagout procedures are mandatory during installation.
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