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1SDA074708R1 ABB XT1H 125 TMF 125-1250 3-Pole MCCB UL/CSA
ABB 1SDA074708R1 XT1H 125 is a 125 A three-pole fixed moulded case circuit breaker with front terminals, a TMF thermomagnetic trip unit, a 1250 A magnetic trip threshold and a 65 kA interruption rating at 480 V AC for demanding low-voltage circuit protection.
£486.38
Why Choose the ABB XT1H 125 TMF 125-1250 3p F F UL/CSA?
The ABB XT1H 125 TMF 125-1250 3p F F UL/CSA, order code 1SDA074708R1, is a three-pole moulded case circuit breaker (MCCB) designed for dependable overload and short-circuit protection in demanding low-voltage power distribution systems. Part of the ABB SACE Tmax XT1 range, it combines a compact 125 A frame with a 125 A TMF thermomagnetic trip unit.
The integrated TMF thermomagnetic release provides thermal protection against sustained overloads together with magnetic protection against short-circuit currents. This configuration has a 125 A rated current and a 1250 A magnetic trip threshold, providing straightforward circuit protection without requiring an electronic trip unit.
Configured as a three-pole fixed circuit breaker with front terminals, the 1SDA074708R1 has a rated voltage of 600Y/347 V and the high-performance XT1H interruption rating of 65 kA at 480 V AC. Its UL/CSA configuration makes it particularly suitable for industrial machinery, distribution equipment and OEM panels designed for applicable North American electrical requirements.
Key Advantages
- High-performance ABB SACE Tmax XT1H moulded case circuit breaker for demanding low-voltage distribution.
- 125 A rated current, utilising the full current rating of the XT1 125 A frame.
- TMF thermomagnetic trip unit provides overload and short-circuit protection.
- 1250 A magnetic trip threshold for rapid response to high fault currents.
- High 65 kA interruption rating at 480 V AC.
- UL/CSA configuration for applicable North American electrical equipment requirements.
- Fixed three-pole construction with front terminals for straightforward switchboard integration.
Key Features
- ABB SACE Tmax XT1H 125 MCCB.
- 125 A rated current.
- 125 A frame size.
- 3-pole configuration.
- TMF thermomagnetic trip unit.
- Thermal protection for sustained overload conditions.
- Magnetic protection for short-circuit conditions.
- 1250 A magnetic trip threshold.
- H high-interruption performance level.
- 65 kA interruption rating at 480 V AC.
- Rated voltage of 600Y/347 V.
- Fixed mounting with front terminals.
- UL-certified configuration.
High-Performance Thermomagnetic Circuit Protection
Thermomagnetic moulded case circuit breakers combine two established protection principles within a single device. The thermal element responds to sustained overload conditions, while the magnetic element provides rapid operation during high-current short circuits. This provides dependable circuit protection through a straightforward trip system without the configuration requirements associated with electronic releases.
The ABB XT1H 125 1SDA074708R1 combines this proven TMF protection technology with the high-interruption Tmax XT1H platform. Its 125 A rating, 1250 A magnetic trip threshold and 65 kA interruption rating at 480 V AC make it particularly suitable for distribution circuits, machinery supplies and OEM equipment where substantial short-circuit capability is required in a compact MCCB format.
Typical Applications
- Industrial low-voltage power distribution systems.
- Commercial switchboards and distribution panels.
- Three-phase feeder and branch-circuit protection.
- Applications with high prospective short-circuit currents.
- Machinery and industrial automation power supplies.
- OEM electrical equipment for applicable North American markets.
- Control panels requiring UL-configured circuit protection.
Technical Specifications
| Series | SACE Tmax XT |
|---|---|
| Product group | T-Max XT 250 Range |
| Order code | 1SDA074708R1 |
| Alternate catalogue number | XT1HU3125AFF000XXX |
| Product type | Moulded case circuit breaker |
| Frame size | XT1 |
| Frame rating | 125 A |
| Performance level | H |
| Rated current (In) | 125 A |
| Number of poles | 3 |
| Trip unit | TMF thermomagnetic release |
| Magnetic trip threshold | 1250 A |
| Magnetic trip multiple | 10 × In |
| Rated voltage | 600Y/347 V |
| Interruption rating | 65 kA at 480 V AC |
| Mounting type | Fixed |
| Terminal type | Front terminals |
| Certification | UL |
| EAN | 8015644786854 |
| Customs tariff number | 85362000 |
| Country of origin | Italy |
| Net weight | approx. 1.19 kg |
Frequently Asked Questions
What is the ABB 1SDA074708R1 used for?
The ABB 1SDA074708R1 is a 125 A three-pole moulded case circuit breaker designed to provide thermomagnetic overload and short-circuit protection in demanding low-voltage electrical distribution systems.
What trip unit is fitted to the ABB XT1H 125 1SDA074708R1?
The circuit breaker is fitted with an ABB TMF thermomagnetic release, combining thermal overload protection with magnetic short-circuit protection.
What does 125-1250 mean on the XT1H 125 TMF?
The designation identifies a 125 A rated current together with a 1250 A magnetic trip threshold, equivalent to 10 times the rated current.
What is the interruption rating of the ABB XT1H 1SDA074708R1?
The XT1H configuration has a high interruption rating of 65 kA at 480 V AC, making it suitable for installations with demanding prospective short-circuit levels.
How is the ABB XT1H 125 TMF 1SDA074708R1 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 high short-circuit interruption performance for demanding industrial, commercial and OEM low-voltage power distribution systems.
