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1SDA074723R1 ABB XT1H 125 TMF 125-1250 4p F F UL/CSA Circuit Breaker
ABB 1SDA074723R1 XT1H 125 is a four-pole fixed UL/CSA moulded case circuit breaker with front terminals, a 125 A TMF thermomagnetic trip unit, 1250 A instantaneous magnetic protection and a 65 kA interruption rating at 480 V AC.
£775.97
Why Choose the ABB XT1H 125 TMF 125-1250 4p F F UL/CSA Circuit Breaker?
The ABB XT1H 125 TMF 125-1250 4p F F UL/CSA, order code 1SDA074723R1, is a high-performance four-pole moulded case circuit breaker designed for dependable overload and short-circuit protection in low-voltage electrical distribution systems. As part of the ABB SACE Tmax XT / T-Max XT 250 Range, it combines the compact XT1 frame with H-class interruption performance for demanding industrial and commercial installations.
This circuit breaker incorporates an ABB TMF thermomagnetic trip unit with a rated current of 125 A and an instantaneous magnetic trip level of 1250 A. The thermal element protects against sustained overload conditions, while the magnetic element provides rapid interruption of high short-circuit currents.
The XT1H 1SDA074723R1 features a four-pole fixed configuration with front terminals and a rated voltage of 600Y/347 V AC. Its H-class design provides an interruption rating of 65 kA at 480 V AC, making it suitable for installations with high prospective fault currents and UL/CSA circuit protection requirements.
Key Advantages
- Compact ABB SACE Tmax XT1 moulded case circuit breaker.
- 125 A TMF thermomagnetic trip unit for dependable overload protection.
- 1250 A instantaneous magnetic trip level for short-circuit protection.
- H-class 65 kA interruption rating at 480 V AC for demanding fault levels.
- Four-pole configuration for simultaneous switching and protection of four conductors.
- Fixed mounting with front terminals for straightforward switchboard integration.
Key Features
- ABB SACE Tmax XT1H 125 frame.
- TMF thermomagnetic trip unit.
- 125 A rated current.
- 1250 A instantaneous magnetic protection.
- Four-pole construction.
- 600Y/347 V AC rated voltage.
- 65 kA interruption rating at 480 V AC.
- Fixed breaker configuration.
- Front terminals for main-circuit connections.
- UL/CSA configuration for North American electrical distribution applications.
High-Performance Thermomagnetic Circuit Protection
The TMF thermomagnetic release combines thermal overload protection with instantaneous magnetic short-circuit protection in a compact mechanical trip unit. This allows the XT1H to protect conductors and connected equipment against both prolonged overcurrent conditions and severe electrical faults.
The H breaking-capacity class makes this XT1 configuration particularly suitable for installations where high prospective short-circuit currents are present. Combined with its compact frame, four-pole construction and fixed front-terminal arrangement, it provides a practical solution for high-performance low-voltage distribution equipment.
Typical Applications
- Industrial low-voltage distribution boards.
- Commercial electrical switchboards.
- UL/CSA power distribution assemblies.
- High-fault-current feeder protection.
- Industrial machinery and OEM electrical panels.
- Four-pole distribution and isolation circuits.
Technical Specifications
| Series | SACE Tmax XT / T-Max XT 250 Range |
|---|---|
| ABB order code | 1SDA074723R1 |
| Alternate catalogue number | XT1HU4125AFF000XXX |
| Product type | Moulded case circuit breaker |
| Frame size | XT1 |
| Frame designation | XT1H 125 |
| Trip unit | TMF thermomagnetic |
| Rated current | 125 A |
| Instantaneous magnetic trip | 1250 A |
| Number of poles | 4 |
| Rated voltage | 600Y/347 V AC |
| Interruption rating | H, 65 kA at 480 V AC |
| Mounting type | Fixed |
| Terminal type | Front terminals |
| Certification | UL / CSA |
| UPC / EAN | 8015644787004 |
Frequently Asked Questions
What is the ABB 1SDA074723R1 used for?
It is a four-pole moulded case circuit breaker designed for overload and short-circuit protection in low-voltage electrical distribution systems, including applications with high prospective fault currents.
What is the rated current of the ABB XT1H 125 TMF 125-1250?
The TMF thermomagnetic trip unit has a rated current of 125 A.
What does 125-1250 mean in the model designation?
The designation identifies the 125 A rated current and 1250 A instantaneous magnetic trip level of the TMF thermomagnetic release.
What is the interruption rating of ABB 1SDA074723R1?
The XT1H has an H-class interruption rating of 65 kA at 480 V AC.
How is the ABB XT1H 1SDA074723R1 installed?
This model is a fixed four-pole circuit breaker with front terminals, designed for integration into compatible switchboards, electrical panels and distribution assemblies.
Trusted ABB Circuit Protection
ABB SACE Tmax XT moulded case circuit breakers provide compact and dependable protection for industrial and commercial electrical distribution systems, with high-interruption XT1H configurations designed for applications requiring robust fault-current protection.
