ABB XT2NU3125FYD000XXX Molded Case Circuit Breaker
- 125A
- 3 Pole
- Unit Mount
Quantity
ABB XT2NU3125FYD000XXX - 125A 3 Pole Molded Case Circuit Breaker
New
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Description
Engineered for commercial power distribution, the ABB XT2NU3125FYD000XXX is a 3-pole, 125A molded case circuit breaker from the SACE Tmax XT family. It provides reliable LSI protection via an advanced Ekip DIP electronic trip unit. This unit mount MCCB integrates with ABB ReliaGear neXT panelboards and SB switchboards. It also serves as a direct replacement for legacy GE Spectra SEHA36AT0125 and ABB Tmax T3N125TW breakers. Rated 25kAIC at 480VAC, it features adjustable trip settings.Specifications
| Brand | ABB |
|---|---|
| Series | XT2 |
| Amperage | 125A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 500VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 25kA @ 480VAC, 18kA @ 600VAC, 35kA @ 500VDC |
| Amperage Range | 50-125A |
|---|
| Terminal Type | Lugs |
|---|---|
| For Use With | ABB ReliaGear neXT Panelboards, ReliaGear SB Switchboards |
| Wire Gauge | 10 AWG - 2/0 AWG (Cu/Al) |
| Max Wire | 2/0 AWG |
| Min Wire | 10 AWG |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LSI |
| Trip Function | Long-Time, Short-Time, Instantaneous |
| Trip Adjustability | Adjustable |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Motor Operator, Padlock Attachment, Terminal Lugs, DIN Rail Adapter |
|---|---|
| Accessories | Lugs Not Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CE, CSA, cULus, IEC, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Double Insulated, Reverse Feed |
Product FAQs
8 answersWhich panelboards are compatible with the XT2NU3125FYD000XXX circuit breaker?
This breaker is designed for integration with ABB ReliaGear neXT Panelboards and ReliaGear SB Switchboards.
What wire sizes are accepted by the lugs on this XT2 breaker?
The factory installed lugs accept wire gauges from 10 AWG to 2/0 AWG and are rated for both copper and aluminum conductors.
What does the LSI designation mean on this electronic trip unit?
LSI indicates that the breaker features adjustable Long-Time, Short-Time, and Instantaneous trip functions. This allows for precise selective coordination and customized protection settings for your specific electrical system.
Can this ABB XT2 breaker be used in DC applications?
Yes, it is rated for DC systems, providing an interrupting capacity of up to 35kA at 500VDC.
How is the XT2NU3125FYD000XXX mounted?
This is a unit mount circuit breaker, meaning it is designed to be bolted or fixed directly to the panel or base rather than using a plug-in or drawout configuration.
What does the N in the XT2N frame designation indicate?
The N signifies ABB's Normal interrupting capacity tier for the XT2 frame, which provides a 25kA interrupting rating at 480VAC and 18kA at 600VAC.
Can this breaker replace legacy GE Spectra or older ABB Tmax models?
Yes, the XT2NU3125FYD000XXX serves as a direct replacement for legacy GE Spectra SEHA36AT0125 and older ABB Tmax T3N125TW circuit breakers.
Does this breaker use traditional thermal magnetic protection?
No, this specific model uses an electronic trip unit rather than traditional thermal magnetic elements. The electronic trip unit provides highly precise and adjustable protection against overloads and short circuits.
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