ABB XT2NU3125BFF000XXX Molded Case Circuit Breaker
- 125A
- 3 Pole
- Unit Mount
ABB
XT2NU3125BFF000XXX
Molded Case Circuit Breaker
Brand
ABB
SKU
XT2NU3125BFF000XXX
Quantity
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ABB XT2NU3125BFF000XXX - 125A 3 Pole Molded Case Circuit Breaker
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125A 3 Pole Molded Case Circuit Breaker
125A 3 Pole Molded Case Circuit Breaker
125A 3 Pole Molded Case Circuit Breaker
Description
Designed for commercial and industrial power distribution, the XT2NU3125BFF000XXX is a 3-pole, 125A molded case circuit breaker from the SACE Tmax XT2 series. It provides reliable overcurrent protection. This unit mount MCCB installs into ABB ReliaGear neXT panelboards and ReliaGear SB switchboards. It serves as a replacement for legacy GE Spectra SEHA36AT0125 and ABB Tmax T3N125TW breakers. Rated for 65kA at 240VAC, it features a current-limiting, double-insulated design.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 | 87.5-125A |
|---|
| Frame Type | XT2N |
|---|---|
| Terminal Type | Lugs |
| For Use With | ABB ReliaGear neXT Panelboards, ReliaGear SB Switchboards |
| Wire Gauge | 10-2/0 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 | Adjustable Thermal, Adjustable Magnetic |
| 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
5 answersWhat panelboards are compatible with the XT2NU3125BFF000XXX?
This breaker is designed for use with ABB ReliaGear neXT panelboards and ReliaGear SB switchboards. It utilizes a bolt-on connection for secure installation in these systems.
Can the Tmax XT2 series replace legacy GE Spectra RMS breakers?
Yes, the ABB SACE Tmax XT series is the direct replacement for the retired GE Spectra RMS line. ABB offers specific retrofit kits that allow you to install Tmax XT breakers into existing GE Spectra panelboards and switchboards.
How does the adjustable thermal-magnetic trip unit work on this breaker?
This breaker features an adjustable thermal and adjustable magnetic trip unit. The long-time thermal setting allows you to fine-tune overload protection, while the instantaneous magnetic setting lets you adjust the short-circuit response threshold to coordinate with downstream devices.
What wire sizes are accepted by the lugs on this XT2 breaker?
The factory-installed lugs accept wire gauges ranging from 10 AWG to 2/0 AWG. Ensure proper torque specifications are followed during installation as outlined in the ABB Tmax XT instruction manual.
Can this breaker be used in DC applications?
Yes, this breaker is rated for up to 500VDC with an interrupting capacity of 35kAIC. When wiring for DC systems, verify the required pole series connections per ABB guidelines to safely interrupt the DC fault current.
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