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ABB XT1NU3025AFD000XXX Molded Case Circuit Breaker
- 25A
- 3 Pole
- Unit Mount
ABB
XT1NU3025AFD000XXX
Molded Case Circuit Breaker
Brand
ABB
SKU
XT1NU3025AFD000XXX
Quantity
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ABB XT1NU3025AFD000XXX - 25A 3 Pole Molded Case Circuit Breaker
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Description
Belonging to ABB's SACE Tmax XT family, the XT1NU3025AFD000XXX is a 3-pole, 25A molded case circuit breaker. Engineered for commercial and industrial applications, this unit provides robust overcurrent protection for low-voltage distribution systems. Designed for unit mount installations, it integrates seamlessly into ABB SACE Tmax XT panelboards and switchboards. This model serves as a modern replacement for legacy Tmax T1 series breakers.Specifications
| Brand | ABB |
|---|---|
| Series | XT1 |
| Amperage | 25A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600Y/347VAC, 250VDC, 500VDC |
| Phase | 3 |
| AIC Rating | 50kA @ 240VAC, 25kA @ 480VAC, 18kA @ 600Y/347VAC, 35kA @ 250VDC, 35kA @ 500VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | ABB SACE Tmax XT Panelboards, Switchboards |
| Wire Gauge | 10 AWG - 2/0 AWG |
| Max Wire | 2/0 AWG |
| Min Wire | 10 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, Padlock Attachment, Motor Operator, Rotary Handle |
|---|---|
| Accessories | Load Side Lugs (Kit FC CuAl 10-2/0 AWG) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CE, CSA, cULus, IEC, KEMA, RINA, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Reverse Feed, Double Insulated |
Product FAQs
6 answersWhat panelboards are compatible with the XT1NU3025AFD000XXX?
This unit-mount breaker is designed for installation in ABB SACE Tmax XT panelboards and switchboards.
Is the XT1NU3025AFD000XXX a direct replacement for older Tmax models?
Yes, the SACE Tmax XT1 frame is the designated modern replacement for legacy ABB Tmax T1 series breakers. It offers updated performance while maintaining a similar footprint for commercial and industrial distribution systems.
What wire sizes do the factory lugs accept?
The standard lugs accommodate wire gauges from 10 AWG to 2/0 AWG. Always verify conductor sizing against the 25A rating and applicable electrical codes for your specific installation.
Are the trip settings adjustable on this specific model?
No. This breaker is equipped with a fixed thermal and fixed magnetic (LI) trip unit. Applications requiring adjustable long-time or instantaneous pickup settings will require a Tmax XT breaker equipped with an electronic trip unit.
What does the LI trip function code indicate?
The LI designation means this thermal-magnetic trip unit provides Long-Time (L) protection for overloads and Instantaneous (I) protection for short circuits. Both settings are fixed on this 25A model.
Can this breaker be used in 500VDC applications?
Yes, it carries a 35kAIC rating at 500VDC. When applying molded case circuit breakers at maximum DC voltages, consult ABB technical documentation for the required series wiring configuration across the poles.
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