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1SDA074663R1 ABB XT1N 125 TMF 125-1250 4P F F UL/CSA MCCB
ABB 1SDA074663R1 XT1N 125 is a 125 A four-pole fixed UL/CSA moulded case circuit breaker with a fully rated neutral, front terminals, a TMF 125-1250 A thermomagnetic release and a 25 kA interrupting rating at 480 V AC.
£518.99
Why Choose the ABB XT1N 125 TMF 125-1250 4p F F UL/CSA Circuit Breaker?
The ABB XT1N 125 TMF 125-1250 4p F F UL/CSA, order code 1SDA074663R1, is a compact moulded case circuit breaker (MCCB) from the ABB SACE Tmax XT range. Built on the XT1 frame, it has a rated current of 125 A and uses a TMF thermomagnetic release for dependable overload and short-circuit protection.
The TMF release combines thermal overload protection with magnetic short-circuit protection. ABB specifies this model with a 125–1250 A release designation, providing a 125 A overload setting and a 1250 A instantaneous short-circuit setting for straightforward circuit protection without an electronic trip unit.
The 1SDA074663R1 is a four-pole fixed circuit breaker with front terminals and a fully rated neutral. Designed for UL/CSA-oriented installations, it is rated at 600Y/347 V AC and provides an N-class interrupting rating of 25 kA at 480 V AC, making it suitable for industrial, commercial and OEM low-voltage distribution equipment.
Key Advantages
- Compact ABB SACE Tmax XT1N moulded case circuit breaker.
- 125 A TMF thermomagnetic release for overload and short-circuit protection.
- 1250 A instantaneous short-circuit setting.
- Four-pole construction with fully rated neutral.
- 25 kA interrupting rating at 480 V AC.
- Rated for 600Y/347 V AC systems.
- Fixed construction with front terminals for conventional switchboard installation.
- UL-certified configuration for North American electrical distribution equipment.
Key Features
- ABB SACE Tmax XT1N series.
- XT1 frame size.
- 125 A rated current.
- TMF thermomagnetic trip unit.
- 125–1250 A release designation.
- 1250 A instantaneous short-circuit setting.
- 4-pole configuration.
- Fully rated neutral.
- Fixed execution.
- Front terminals.
- 600Y/347 V AC rated voltage.
- N performance: 25 kA at 480 V AC.
- UL certification.
Reliable Four-Pole Thermomagnetic Protection for Power Distribution
Thermomagnetic moulded case circuit breakers combine thermal overload protection with magnetic short-circuit protection in a compact and proven device. In the ABB 1SDA074663R1, the 125 A TMF release provides protection against sustained overload conditions while its 1250 A instantaneous setting enables rapid operation during high-current short circuits.
The four-pole configuration incorporates a fully rated neutral, making this XT1N suitable for distribution systems where neutral conductor capacity is an important design consideration. Combined with fixed mounting, front terminals, a 600Y/347 V AC rating and 25 kA interrupting performance at 480 V AC, it provides a robust solution for UL-oriented power distribution.
Typical Applications
- UL/CSA-oriented low-voltage distribution equipment.
- Four-pole industrial electrical distribution panels.
- Commercial building power distribution systems.
- Feeder and sub-distribution circuit protection.
- Systems requiring a fully rated neutral conductor.
- Machine and equipment power-distribution panels.
- OEM switchboards and control-panel assemblies.
Technical Specifications
| Series | SACE Tmax XT |
|---|---|
| ABB order code | 1SDA074663R1 |
| Alternate catalogue number | XT1NU4125AFF000XXX |
| EAN / UPC | 8015644786403 |
| Product type | Moulded case circuit breaker (MCCB) |
| Frame | XT1 |
| Performance level | N |
| Rated current | 125 A |
| Trip unit | TMF thermomagnetic release |
| Release designation | 125–1250 A |
| Overload release setting | 125 A |
| Instantaneous short-circuit setting | 1250 A |
| Number of poles | 4 |
| Neutral | Fully rated |
| Execution | Fixed |
| Terminal type | Front terminals |
| Rated voltage | 600Y/347 V AC |
| Interrupting rating | 25 kA at 480 V AC |
| Standard | UL |
| Certification | UL |
Frequently Asked Questions
What is the ABB 1SDA074663R1?
It is an ABB SACE Tmax XT1N moulded case circuit breaker with a 125 A TMF thermomagnetic release, four poles, a fully rated neutral, fixed execution and front terminals.
What is the rated current of ABB 1SDA074663R1?
The circuit breaker and its TMF thermomagnetic release are rated at 125 A.
What does TMF mean on the ABB XT1N circuit breaker?
TMF identifies the breaker's thermomagnetic trip unit, combining thermal overload protection with magnetic short-circuit protection.
What is the instantaneous short-circuit setting of ABB 1SDA074663R1?
The TMF release has an instantaneous short-circuit setting of 1250 A.
Does ABB 1SDA074663R1 have a fully rated neutral?
Yes. ABB specifies this four-pole XT1N circuit breaker with a fully rated neutral.
What is the interrupting rating of ABB 1SDA074663R1 at 480 V AC?
The XT1N version has an N-class interrupting rating of 25 kA at 480 V AC.
How is ABB 1SDA074663R1 installed?
This model is supplied as a four-pole fixed circuit breaker with front terminals for integration into compatible low-voltage distribution equipment.
Trusted by Electrical Distribution Professionals Worldwide
ABB SACE Tmax XT moulded case circuit breakers are widely used in industrial, commercial and OEM electrical systems to provide dependable circuit protection, compact installation and reliable low-voltage power distribution.
