ABB XT4SU3250AYL000XXX Molded Case Circuit Breaker
- 250A
- 3 Pole
- Unit Mount
ABB
XT4SU3250AYL000XXX
Molded Case Circuit Breaker
Brand
ABB
SKU
XT4SU3250AYL000XXX
Quantity
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ABB XT4SU3250AYL000XXX - 250A 3 Pole Molded Case Circuit Breaker
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Description
Constructed for commercial and industrial use, the XT4SU3250AYL000XXX is a 3-pole, 250A molded case circuit breaker from the SACE Tmax XT4 series. It provides reliable protection with fixed thermal and magnetic trip units. This unit-mount breaker installs into ABB ReliaGear neXT panelboards and SB switchboards. It serves as an upgrade for legacy Tmax T4S250TW models using a retrofit kit. Rated for 35kAIC at 480VAC, this HACR-rated breaker supports reverse feeding.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 | 3/0 AWG - 350 kcmil |
| Max Wire | 350 kcmil |
| Min Wire | 3/0 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Auxiliary Switch, Shunt Trip, Undervoltage Release, Padlock Attachment, Motor Operator, Rotary Handle |
|---|---|
| Accessories | Lugs |
| 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
7 answersWhich panelboards are compatible with the XT4SU3250AYL000XXX circuit breaker?
This unit mount breaker is designed for installation in ABB ReliaGear neXT panelboards and ABB ReliaGear SB switchboards.
Can the XT4SU3250AYL000XXX replace older legacy Tmax breakers?
Yes, this XT4S breaker can serve as an upgrade for legacy Tmax T4S250TW models when used with the appropriate retrofit kit.
What wire sizes are accepted by the lugs on this 250A breaker?
The factory installed lugs accept wire gauges from 3/0 AWG up to 350 kcmil for both copper and aluminum conductors.
Is the ABB XT4SU3250AYL000XXX suitable for reverse feeding?
Yes, this molded case circuit breaker supports reverse feeding applications.
Does this XT4 breaker carry an HACR rating?
Yes, the XT4SU3250AYL000XXX is HACR rated, making it suitable for heating, air conditioning, and refrigeration equipment protection.
Are the thermal and magnetic trip settings adjustable on this breaker?
No, this specific model features a fixed thermal and fixed magnetic trip unit. The long-time and instantaneous trip thresholds cannot be adjusted in the field.
Can this breaker be used in DC electrical systems?
Yes, it is rated for DC applications. It provides up to 42kA interrupting capacity at 250VDC and 50kA at 600VDC.
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