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ABB XT4NU3225AYJ000XXX Molded Case Circuit Breaker
- 225A
- 3 Pole
- Unit Mount
ABB
XT4NU3225AYJ000XXX
Molded Case Circuit Breaker
Brand
ABB
SKU
XT4NU3225AYJ000XXX
Quantity
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ABB XT4NU3225AYJ000XXX - 225A 3 Pole Molded Case Circuit Breaker
New
Quantity
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Description
Delivering high-performance overcurrent protection, the ABB XT4NU3225AYJ000XXX belongs to the SACE Tmax XT family. Built for demanding commercial environments, it mounts into ReliaGear neXT panels and SB switchboards. This model can replace legacy Tmax T3N225TW units when paired with the appropriate retrofit kit. Equipped with a fixed thermal-magnetic trip unit and factory-installed lugs, it provides reliable current-limiting defense for heavy-duty electrical systems.Specifications
| Brand | ABB |
|---|---|
| Series | XT4 |
| Amperage | 225A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600Y/347VAC, 250VDC, 600VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 25kA @ 480VAC, 18kA @ 600Y/347VAC, 35kA @ 250VDC, 35kA @ 600VDC |
| Frame Type | XT4N |
|---|---|
| Terminal Type | Lugs |
| For Use With | ABB ReliaGear neXT Panelboards, ABB 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 | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release |
|---|---|
| Accessories | Lugs Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CCC, CSA, cULus, IEC, KEMA, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Reverse Feed |
Product FAQs
5 answersWhich panelboards accept the XT4NU3225AYJ000XXX breaker?
This Tmax XT4 unit-mount breaker is designed for integration into ABB ReliaGear neXT panelboards and ReliaGear SB switchboards.
Are the thermal and magnetic trip elements adjustable on this XT4 breaker?
No. It utilizes a fixed thermal, fixed magnetic trip unit. Both the long-time overload protection and instantaneous short-circuit protection are factory set and cannot be field modified.
Is this breaker rated for DC systems?
Yes, it provides up to a 35kA interrupting rating for both 250VDC and 600VDC networks. When installing in DC applications, consult ABB wiring guidelines to ensure the correct number of poles are wired in series to safely clear faults.
Do I need to purchase terminal lugs separately for this 225A breaker?
No, the breaker comes equipped with front flat terminal connections and factory lugs that accept 4 AWG to 300 kcmil copper or aluminum conductors.
What is the maximum continuous current capacity of the XT4 frame size?
The Tmax XT4 frame supports up to 250 amps. This specific model is configured with a 225-amp fixed trip unit for its maximum continuous load.
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