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1SDA074644R1 ABB XT1N 125 TMF 80-800 3-Pole MCCB UL/CSA
ABB 1SDA074644R1 XT1N 125 is an 80 A three-pole fixed moulded case circuit breaker with front terminals, a TMF fixed thermomagnetic trip unit, an 800 A instantaneous magnetic trip threshold and a UL/CSA configuration for low-voltage circuit protection.
£333.82
Why Choose the ABB XT1N 125 TMF 80-800 3p F F UL/CSA?
The ABB XT1N 125 TMF 80-800 3p F F UL/CSA, order code 1SDA074644R1, is a three-pole moulded case circuit breaker (MCCB) designed for dependable overload and short-circuit protection in low-voltage power distribution systems. Part of the ABB SACE Tmax XT1 range, it combines a compact 125 A frame with an 80 A TMF thermomagnetic trip unit.
The integrated TMF fixed thermomagnetic release provides thermal protection against sustained overloads and magnetic protection against short-circuit currents. This configuration has an 80 A rated current and a 800 A instantaneous magnetic trip threshold, providing straightforward protection without requiring an electronic trip unit or external trip-unit power supply.
Configured as a three-pole fixed circuit breaker with front terminals, the 1SDA074644R1 is designed for integration into switchboards, distribution panels and OEM electrical assemblies. Its UL/CSA configuration makes it particularly relevant to equipment and panel designs requiring North American certification alongside the compact, proven Tmax XT platform.
Key Advantages
- Compact ABB SACE Tmax XT1N moulded case circuit breaker.
- 80 A rated current within the XT1 125 A frame.
- TMF thermomagnetic trip unit provides overload and short-circuit protection.
- 800 A instantaneous magnetic trip threshold for rapid response to high fault currents.
- UL/CSA configuration for applicable North American electrical equipment requirements.
- Fixed three-pole construction with front terminals for straightforward panel integration.
Key Features
- ABB SACE Tmax XT1N 125 MCCB.
- 80 A rated current.
- 125 A frame size.
- 3-pole configuration.
- TMF fixed thermomagnetic trip unit.
- Thermal overload protection.
- Magnetic short-circuit protection.
- 800 A instantaneous magnetic trip threshold.
- N performance level.
- UL/CSA configuration.
- Fixed mounting with front terminals.
- Compact XT1 construction for efficient use of switchboard space.
Compact Thermomagnetic Protection for Power Distribution
Thermomagnetic moulded case circuit breakers combine two established protection principles in one device. The thermal element responds to sustained overload conditions, while the magnetic element operates rapidly during high-current short circuits. A fixed TMF release provides these functions through a simple, robust protection arrangement that does not depend on electronic trip-unit settings.
The ABB XT1N 125 1SDA074644R1 combines this thermomagnetic protection with a compact three-pole Tmax XT1 platform. Its 80 A rating and 800 A magnetic trip threshold make it suitable for feeders, machinery supplies and distribution circuits requiring dependable fixed protection, while its UL/CSA configuration supports use in applicable North American-oriented equipment designs.
Typical Applications
- Industrial low-voltage power distribution systems.
- Commercial switchboards and distribution panels.
- Three-phase feeder and branch-circuit protection.
- Machinery and industrial automation power supplies.
- OEM electrical equipment intended for applicable North American markets.
- Control panels requiring UL/CSA-configured circuit protection.
- Electrical systems requiring fixed thermomagnetic overload and short-circuit protection.
Technical Specifications
| Series | SACE Tmax XT |
|---|---|
| Product group | T-Max XT 250 Range |
| Order code | 1SDA074644R1 |
| Product type | Moulded case circuit breaker |
| Frame size | XT1 |
| Frame rating | 125 A |
| Performance level | N |
| Rated current (In) | 80 A |
| Number of poles | 3 |
| Trip unit | TMF fixed thermomagnetic release |
| Instantaneous magnetic trip threshold | 800 A |
| Magnetic trip multiple | 10 × In |
| Mounting type | Fixed |
| Terminal type | Front terminals |
| Certification configuration | UL / CSA |
Frequently Asked Questions
What is the ABB 1SDA074644R1 used for?
The ABB 1SDA074644R1 is an 80 A three-pole moulded case circuit breaker designed to provide thermomagnetic overload and short-circuit protection in low-voltage electrical distribution systems.
What trip unit is fitted to the ABB XT1N 125 1SDA074644R1?
The circuit breaker uses a TMF fixed thermomagnetic release, combining thermal overload protection with instantaneous magnetic short-circuit protection.
What does 80-800 mean on the XT1N 125 TMF?
The designation identifies an 80 A rated current and an 800 A instantaneous magnetic trip threshold, equivalent to 10 times the rated current.
What does UL/CSA mean on the ABB 1SDA074644R1?
The UL/CSA designation identifies this XT1N configuration for applicable North American certification requirements, making it relevant to compatible equipment and panel designs requiring UL and CSA compliance.
How is the ABB XT1N 125 TMF 1SDA074644R1 installed?
This version is a fixed three-pole circuit breaker with front terminals, designed for permanent installation within compatible low-voltage switchboards, distribution panels and OEM electrical assemblies.
Trusted ABB Low-Voltage Circuit Protection
ABB SACE Tmax XT moulded case circuit breakers combine compact construction, proven thermomagnetic protection and flexible installation options for industrial, commercial and OEM low-voltage power distribution systems.
