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1SDA075712R1 ABB TMA 200 1000–2000 3P XT4 Trip Unit
ABB 1SDA075712R1 is a 200 A three-pole TMA thermomagnetic trip unit for SACE Tmax XT4 circuit breakers with adjustable 140–200 A thermal overload and 1000–2000 A instantaneous short-circuit protection.
£429.74
Why Choose the ABB TMA 200 1000–2000 3P XT4 Trip Unit?
The ABB TMA 200 1000–2000 3P XT4, order code 1SDA075712R1, is a three-pole thermomagnetic trip unit designed for use with ABB SACE Tmax XT4 moulded case circuit breakers. As part of the ABB SACE Tmax XT platform, it provides adjustable thermal overload and magnetic short-circuit protection for low-voltage electrical distribution applications.
The trip unit has a 200 A rated current with an adjustable thermal protection setting of 140–200 A. Its instantaneous magnetic protection can be adjusted from 1000–2000 A, equivalent to approximately five to ten times the rated current, allowing the protection characteristics to be matched to the requirements of the protected circuit.
Designed specifically for the ABB XT4 250 frame, the 1SDA075712R1 is a three-pole fixed/front configuration trip unit for UL/CSA applications. It is suitable for configuring compatible XT4 circuit breakers used in switchboards, distribution panels, industrial machinery and other low-voltage power-distribution systems.
Key Advantages
- Purpose-designed TMA thermomagnetic trip unit for ABB XT4 circuit breakers.
- 200 A rated current for low-voltage distribution applications.
- Adjustable 140–200 A thermal overload protection.
- Adjustable 1000–2000 A instantaneous magnetic protection.
- Combines overload and short-circuit protection without requiring an electronic trip unit.
- Three-pole configuration for compatible XT4 three-pole circuit breakers.
- Designed for the ABB SACE Tmax XT4 250 frame.
- UL/CSA-oriented configuration for North American low-voltage applications.
Key Features
- ABB SACE Tmax XT series.
- XT4 frame compatibility.
- TMA thermomagnetic protection technology.
- 200 A rated current.
- 140–200 A adjustable thermal setting.
- 1000–2000 A adjustable magnetic setting.
- Three-pole configuration.
- Fixed/front configuration for compatible XT4 circuit breakers.
- Designed for overload and instantaneous short-circuit protection.
- UL/CSA application configuration.
Reliable Thermomagnetic Protection for XT4 Circuit Breakers
Thermomagnetic trip units combine two complementary protection principles. The thermal element responds to sustained overcurrents to provide overload protection, while the magnetic element responds rapidly to high fault currents to provide instantaneous short-circuit protection.
The ABB TMA design adds adjustability to both protection functions. On this 200 A version, the thermal threshold can be set between 140–200 A, while the instantaneous magnetic threshold can be adjusted between 1000–2000 A, providing flexibility when coordinating a compatible XT4 circuit breaker with the protected circuit.
Typical Applications
- ABB SACE Tmax XT4 circuit breaker configurations.
- Industrial low-voltage distribution boards.
- Commercial electrical distribution systems.
- Feeder and cable protection.
- Electrical switchboards and panel assemblies.
- Industrial machinery power circuits.
- Manufacturing and process installations.
- UL/CSA-oriented electrical distribution equipment.
Technical Specifications
| Series | SACE Tmax XT |
|---|---|
| ABB order code | 1SDA075712R1 |
| Product type | Thermomagnetic trip unit |
| Compatible frame | XT4 |
| Frame size | 250 A |
| Trip unit type | TMA |
| Rated current | 200 A |
| Thermal overload setting | 140–200 A |
| Thermal setting range | 0.7–1 × In |
| Instantaneous magnetic setting | 1000–2000 A |
| Magnetic setting range | 5–10 × In |
| Number of poles | 3 |
| Configuration | Fixed / front |
| Application | Distribution protection |
| Standards/application | UL/CSA |
| EAN | 8015644796891 |
Frequently Asked Questions
What is the ABB 1SDA075712R1 used for?
The ABB 1SDA075712R1 is a TMA thermomagnetic trip unit designed for compatible three-pole ABB SACE Tmax XT4 circuit breakers, providing adjustable overload and instantaneous short-circuit protection.
What is the rated current of the ABB TMA 1SDA075712R1?
The trip unit has a rated current of 200 A and is designed for the ABB XT4 frame.
What is the thermal overload adjustment range?
The thermal overload protection is adjustable from 140–200 A, corresponding to approximately 0.7–1 times the 200 A rated current.
What is the instantaneous short-circuit setting?
The magnetic instantaneous protection is adjustable from 1000–2000 A, corresponding to approximately five to ten times the rated current.
Which ABB circuit breaker frame is this trip unit designed for?
The 1SDA075712R1 is designed for compatible ABB SACE Tmax XT4 three-pole circuit breakers within the 250 A frame platform.
Trusted by Electrical Professionals Worldwide
ABB SACE Tmax XT protection components are widely used in industrial and commercial electrical systems to provide dependable overload and short-circuit protection with flexible integration into modern low-voltage distribution equipment.
