ABB XT4SU3175AY8000XXX Molded Case Circuit Breaker
- 175A
- 3 Pole
- Unit Mount
ABB
XT4SU3175AY8000XXX
Molded Case Circuit Breaker
Brand
ABB
SKU
XT4SU3175AY8000XXX
Quantity
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ABB XT4SU3175AY8000XXX - 175A 3 Pole Molded Case Circuit Breaker
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Description
Operating within the SACE Tmax XT family, the ABB XT4SU3175AY8000XXX is a 3-pole molded case circuit breaker engineered for industrial environments. It provides robust overcurrent defense via a fixed thermal-magnetic trip mechanism. This unit mount breaker integrates into ABB ReliaGear neXT power panels and SB switchboards. It acts as an exact substitute for the discontinued T4S175TW. Rated 175A at 600VAC, the device delivers a 35kAIC capacity at 480V and includes load side lugs.Specifications
| Brand | ABB |
|---|---|
| Series | XT4 |
| Amperage | 175A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600Y/347VAC, 600VAC, 250VDC, 600VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 35kA @ 480VAC, 22kA @ 600Y/347VAC, 22kA @ 600VAC, 42kA @ 250VDC, 50kA @ 600VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | ABB ReliaGear neXT Power Panels, ReliaGear SB Switchboards, SACE Tmax XT Panelboards |
| 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 | Shunt Trip, Auxiliary Switch, Undervoltage Release, Motor Operator, Rotary Handle |
|---|---|
| Accessories | Load Side Lugs Included, Mounting Hardware |
| 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
6 answersCan the XT4SU3175AY8000XXX replace older GE Spectra RMS circuit breakers?
Yes. The ABB SACE Tmax XT4 series is the modern replacement for legacy GE Spectra RMS SF250 frame breakers. When upgrading existing Spectra panelboards or switchboards, a specific ABB retrofit kit is required to mount the XT4 breaker into the existing plug-in modules.
Is this breaker a direct substitute for the discontinued Tmax T4S175TW?
Yes, the XT4SU3175AY8000XXX serves as an exact replacement for the legacy ABB Tmax T4S175TW molded case circuit breaker.
How must this 3-pole breaker be wired for 600VDC applications?
To achieve the 50kA interrupting capacity at 600VDC, the breaker requires wiring three poles in series according to ABB DC wiring guidelines.
What wire sizes are accepted by the factory-installed lugs on this breaker?
The included lugs accept copper or aluminum conductors ranging from 3/0 AWG to 350 kcmil. Always ensure connections are torqued to the manufacturer specifications during installation.
Which ABB panelboards are compatible with the XT4SU3175AY8000XXX?
This unit-mount breaker is designed for installation in ABB ReliaGear neXT Power Panels, ReliaGear SB Switchboards, and SACE Tmax XT Panelboards.
Does this breaker support reverse feeding?
Yes, the XT4SU3175AY8000XXX is HACR rated and supports reverse feeding. Power can be supplied from the bottom terminals up to a maximum of 600V.
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