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1SDA074636R1 ABB XT1N 125 TMF 25-500 3P F F UL/CSA MCCB
ABB 1SDA074636R1 XT1N 125 is a 25 A three-pole fixed UL/CSA moulded case circuit breaker with front terminals, a TMF 25-500 A thermomagnetic release, a 600Y/347 V AC rating and a 25 kA interrupting rating at 480 V AC.
£345.17
Why Choose the ABB XT1N 125 TMF 25-500 3p F F UL/CSA Circuit Breaker?
The ABB XT1N 125 TMF 25-500 3p F F UL/CSA, order code 1SDA074636R1, is a compact moulded case circuit breaker (MCCB) from the ABB SACE Tmax XT range. Built on the XT1 125 A frame, this model incorporates a 25 A TMF thermomagnetic trip unit for dependable overload and short-circuit protection in low-voltage electrical distribution systems.
The TMF release combines thermal overload protection with magnetic short-circuit protection. ABB identifies this model with the 25–500 A release designation, providing a 25 A rated current together with thermomagnetic protection in a straightforward, robust circuit-breaker platform.
The 1SDA074636R1 is supplied as a three-pole fixed circuit breaker with front terminals and is designed for UL/CSA applications. ABB specifies a rated voltage of 600Y/347 V AC and an N-class interrupting rating of 25 kA at 480 V AC, making it suitable for industrial, commercial and OEM distribution equipment requiring North American circuit-breaker performance.
Key Advantages
- Compact ABB SACE Tmax XT1N moulded case circuit breaker.
- 25 A TMF thermomagnetic trip unit for overload and short-circuit protection.
- 25–500 A release designation for the specified TMF configuration.
- 25 kA interrupting rating at 480 V AC.
- Rated for 600Y/347 V AC systems.
- Three-pole fixed construction for three-phase electrical distribution.
- Front terminals provide a conventional switchboard connection arrangement.
- UL-certified configuration for North American electrical equipment.
Key Features
- ABB SACE Tmax XT1N series.
- XT1 125 A frame size.
- 25 A rated current.
- TMF thermomagnetic trip unit.
- 25–500 A release designation.
- 3-pole configuration.
- Fixed execution.
- Front terminals.
- 600Y/347 V AC rated voltage.
- N performance class: 25 kA at 480 V AC.
- UL certification.
Reliable UL/CSA Thermomagnetic Protection for Power Distribution
Thermomagnetic moulded case circuit breakers combine two established protection principles in one compact device. The thermal element responds to sustained overload conditions, while the magnetic element provides rapid protection during high-current short circuits, helping protect cables, feeders and connected electrical equipment without requiring an electronic trip unit.
The ABB 1SDA074636R1 combines this proven protection technology with the compact XT1 platform and N-class short-circuit performance. Its 25 A TMF rating, 600Y/347 V AC voltage rating and 25 kA interrupting capacity at 480 V AC make it a practical choice for UL/CSA-oriented industrial and commercial distribution equipment.
Typical Applications
- UL/CSA-oriented low-voltage distribution equipment.
- Industrial electrical distribution panels.
- Commercial building power distribution systems.
- Three-phase feeder and branch-circuit protection.
- Machine and equipment power-distribution panels.
- OEM switchboards and control-panel assemblies.
- Circuits requiring compact thermomagnetic overload and short-circuit protection.
Technical Specifications
| Series | SACE Tmax XT |
|---|---|
| ABB order code | 1SDA074636R1 |
| Alternate catalogue number | XT1NU3025AFF000XXX |
| EAN / UPC | 8015644785031 |
| Product type | Moulded case circuit breaker (MCCB) |
| Frame | XT1 |
| Frame size | 125 A |
| Performance level | N |
| Rated current | 25 A |
| Trip unit | TMF thermomagnetic release |
| Release designation | 25-500 A |
| Number of poles | 3 |
| 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 1SDA074636R1?
It is an ABB SACE Tmax XT1N moulded case circuit breaker with a 125 A frame, 25 A TMF thermomagnetic release, three poles, fixed execution and front terminals.
What is the rated current of ABB 1SDA074636R1?
The TMF thermomagnetic trip unit has a rated current of 25 A, while the XT1 frame size is 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 release designation of ABB 1SDA074636R1?
ABB specifies this circuit breaker with a TMF 25–500 A release designation.
What is the interrupting rating of ABB 1SDA074636R1 at 480 V AC?
The XT1N version has an N-class interrupting rating of 25 kA at 480 V AC.
What voltage is ABB 1SDA074636R1 rated for?
ABB specifies a rated voltage of 600Y/347 V AC for this XT1N UL/CSA circuit-breaker configuration.
How is ABB 1SDA074636R1 installed?
This model is supplied as a three-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.
