ABB XT4SU3250AY8000XXX Molded Case Circuit Breaker
- 250A
- 3 Pole
- Unit Mount
ABB
XT4SU3250AY8000XXX
Molded Case Circuit Breaker
Brand
ABB
SKU
XT4SU3250AY8000XXX
Quantity
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ABB XT4SU3250AY8000XXX - 250A 3 Pole Molded Case Circuit Breaker
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Description
A robust solution for commercial and industrial facilities, the ABB XT4SU3250AY8000XXX is a 250-amp, 3-pole molded case circuit breaker. It mounts into ABB ReliaGear neXT panelboards and SB switchboards, and can replace the legacy T4S250TW when used with the appropriate retrofit kit. This XT4S frame breaker provides a 35kAIC interrupt rating at 480VAC and features a fixed thermal-magnetic (TMF) trip unit. It includes factory-installed lugs and offers current-limiting protection.Specifications
| Brand | ABB |
|---|---|
| Series | XT4 |
| Amperage | 250A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC, 600VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 35kA @ 480VAC, 22kA @ 600VAC, 42kA @ 250VDC, 50kA @ 600VDC |
| Frame Type | XT4S |
|---|---|
| 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, RINA, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Reverse Feed |
Product FAQs
7 answersWhat panelboards are compatible with the XT4SU3250AY8000XXX?
This breaker is designed to mount into ABB ReliaGear neXT panelboards and ABB ReliaGear SB switchboards.
Can this breaker replace legacy ABB or GE models?
Yes, the XT4SU3250AY8000XXX can replace the legacy T4S250TW circuit breaker when installed with the appropriate retrofit kit.
Is this breaker suitable for reverse feeding?
Yes, power can be supplied to the bottom terminals of the XT4 breaker up to a maximum of 600V.
Can this 3-pole breaker be used in single-phase applications?
Yes, XT4 three-pole circuit breakers are UL marked as suitable for single-phase applications up to 600VAC.
Is this breaker 100% rated for continuous operation?
Yes, fixed XT4 breakers are suitable for continuous operation at 100% of their rating up to 250A when using 90 degrees Celsius wire, provided the wire size is based on 75 degrees Celsius ampacity.
What is the operating temperature range for this breaker?
The Tmax XT circuit breakers can be used in ambient air temperatures ranging from -25 to +70 degrees Celsius.
Is this breaker HACR rated?
Yes, it carries an HACR type rating, making it suitable for heating, air conditioning, and refrigeration applications.
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