ABB XT4LU3250BFJ000XXX Molded Case Circuit Breaker
- 250A
- 3 Pole
- Unit Mount
Quantity
ABB XT4LU3250BFJ000XXX - 250A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Built for industrial power systems, the ABB XT4LU3250BFJ000XXX is a 3-pole, 250A molded case circuit breaker from the SACE Tmax XT series. This unit-mount breaker fits ABB ReliaGear neXT panelboards and SB switchboards. It acts as a replacement for the T4L250TW model and comes complete with line and load lugs for immediate wiring. Equipped with adjustable thermal and magnetic trip functions, it boasts a 100kAIC rating at 480VAC.Specifications
| Brand | ABB |
|---|---|
| Series | XT4 |
| Amperage | 250A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC, 600VDC |
| Phase | 3 |
| AIC Rating | 200kA @ 240VAC, 100kA @ 480VAC, 50kA @ 600VAC, 85kA @ 250VDC, 75kA @ 600VDC |
| Amperage Range | 175-250A |
|---|
| Frame Type | XT4L |
|---|---|
| Terminal Type | Lugs |
| For Use With | ABB ReliaGear neXT Panelboards, ReliaGear SB Switchboards |
| Wire Gauge | 4 AWG - 300 kcmil (Cu/Al) |
| Max Wire | 300 kcmil |
| Min Wire | 4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Adjustable Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Motor Operator |
|---|---|
| Accessories | Line and Load Lugs Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CCC, CSA, IEC, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Current Limiting, Reverse Feed, Double Insulation |
Product FAQs
7 answersWhat legacy circuit breaker does the ABB XT4LU3250BFJ000XXX replace?
This Tmax XT4L breaker serves as a direct replacement for the older ABB Tmax T4L250TW model.
Which panelboards and switchboards are compatible with this XT4L breaker?
This breaker is designed for installation in ABB ReliaGear neXT panelboards and ReliaGear SB switchboards.
What wire sizes and materials do the standard lugs accept?
The included lugs are rated for 4 AWG to 300 kcmil copper or aluminum conductors.
How does the adjustable thermal-magnetic trip unit function on this 250A breaker?
The trip unit allows electricians to fine-tune both the long-time (thermal) and instantaneous (magnetic) trip settings, providing precise overload and short-circuit protection tailored to the specific load.
Is this a plug-in or unit-mount circuit breaker?
The XT4LU3250BFJ000XXX is a unit-mount breaker. It bolts directly to the mounting plate or chassis rather than plugging onto a busbar.
What does the L in the XT4L frame designation indicate?
The L indicates an extra-high interrupting capacity tier within the Tmax XT family. This specific breaker delivers a 100kAIC rating at 480VAC and 200kAIC at 240VAC.
Can the XT4LU3250BFJ000XXX be reverse fed?
Yes, this Tmax XT4 breaker is suitable for reverse feed applications without any derating of its performance characteristics.
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