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1SDA100576R1 ABB TMA 500-5000 XT5 3-Pole Thermomagnetic Trip Unit
ABB 1SDA100576R1 TMA 500-5000 is a 500 A three-pole thermomagnetic trip unit for compatible SACE Tmax XT5 circuit breakers, providing thermal overload protection and adjustable instantaneous magnetic short-circuit protection from 2500–5000 A.
£388.25
Why Choose the ABB TMA 500-5000 XT5 3p 1SDA100576R1 Trip Unit?
The ABB TMA 500-5000 XT5 3p 1SDA100576R1 is a 500 A three-pole thermomagnetic trip unit designed for use with compatible ABB SACE Tmax XT5 breaking parts. It forms part of ABB's modular Tmax XT power-distribution system and provides thermal overload and instantaneous magnetic short-circuit protection without relying on an electronic trip unit.
This TMA release is specifically intended for three-pole XT5 circuit-breaker configurations. It is supplied as a protection release rather than as a complete moulded case circuit breaker and must therefore be combined with a compatible XT5 breaking part selected according to the required interruption performance.
Rated at 500 A, the 1SDA100576R1 incorporates an adjustable instantaneous magnetic threshold from 2500–5000 A. This combination of thermal overload and magnetic short-circuit protection provides a robust solution for low-voltage power-distribution circuits where straightforward thermomagnetic protection is preferred.
Key Advantages
- 500 A thermomagnetic trip unit for compatible ABB SACE Tmax XT5 circuit breakers.
- Combines thermal overload and instantaneous magnetic short-circuit protection.
- Instantaneous magnetic protection adjustable from 2500–5000 A.
- Thermomagnetic operation provides fundamental protection without an electronic trip-unit power supply.
- Three-pole configuration for compatible three-phase XT5 breaker assemblies.
- Modular construction allows pairing with the appropriate XT5 breaking part for the required breaking capacity.
Key Features
- ABB SACE Tmax XT series.
- Designed for the XT5 frame.
- TMA thermomagnetic release.
- 500 A rated current.
- 2500–5000 A instantaneous magnetic setting range.
- Three-pole configuration.
- Thermal element for overload protection.
- Magnetic element for instantaneous short-circuit protection.
- Suitable for AC/DC-compatible XT5 applications according to the selected complete breaker configuration.
- Must be paired with a compatible XT5 breaking part to form a complete circuit breaker.
Dependable Thermomagnetic Protection for ABB XT5 Circuit Breakers
Thermomagnetic trip units combine two established protection principles. The thermal element responds to sustained overcurrent conditions to provide overload protection, while the magnetic element operates rapidly when current reaches the selected short-circuit threshold. This provides straightforward circuit protection using an electromechanical release architecture.
The ABB 1SDA100576R1 is a trip unit rather than a complete circuit breaker. ABB's modular XT5 system requires the protection release to be combined with a corresponding XT5 breaking part. The selected breaking part determines characteristics such as the complete breaker's short-circuit interruption class, while the TMA release provides the 500 A thermomagnetic protection characteristics.
Typical Applications
- ABB SACE Tmax XT5 circuit-breaker assemblies.
- Industrial low-voltage power distribution.
- Feeder and cable protection.
- Distribution-board circuit protection.
- Commercial and infrastructure electrical systems.
- Applications requiring 500 A thermomagnetic overload and short-circuit protection.
Technical Specifications
| Series | SACE Tmax XT |
|---|---|
| Compatible frame | XT5 |
| ABB order code | 1SDA100576R1 |
| GTIN / EAN | 8056221006521 |
| Product type | Thermomagnetic trip unit / protection release |
| Release type | TMA |
| Protection technology | Thermomagnetic |
| Application | Power-distribution protection |
| Rated current (In) | 500 A |
| Instantaneous magnetic setting (I3) | 2500–5000 A |
| Instantaneous setting relative to In | 5–10 × In |
| Number of poles | 3 |
| Protection functions | Thermal overload and instantaneous magnetic short-circuit protection |
| AC/DC release | Yes |
| Installation | For combination with a compatible ABB XT5 breaking part |
| Product net weight | 1.35 kg |
| Standard | IEC |
Frequently Asked Questions
What is the ABB 1SDA100576R1?
The ABB 1SDA100576R1 is a 500 A three-pole TMA thermomagnetic trip unit designed for compatible ABB SACE Tmax XT5 circuit-breaker assemblies.
Is the ABB 1SDA100576R1 a complete circuit breaker?
No. The 1SDA100576R1 is a thermomagnetic protection release. It must be combined with an appropriate ABB XT5 breaking part to form a complete moulded case circuit breaker.
What protection does the TMA 500-5000 trip unit provide?
The TMA release provides thermal overload protection together with instantaneous magnetic short-circuit protection for compatible XT5 power-distribution circuit breakers.
What is the magnetic setting range of ABB 1SDA100576R1?
The instantaneous magnetic protection threshold is adjustable from 2500–5000 A, corresponding to approximately 5–10 × the 500 A rated current.
Which ABB circuit-breaker frame is compatible with 1SDA100576R1?
The 1SDA100576R1 is designed for the ABB SACE Tmax XT5 frame in a three-pole configuration. It is combined with the appropriate XT5 breaking part selected for the required short-circuit interruption performance.
Trusted by Electrical Professionals Worldwide
ABB SACE Tmax XT protection releases provide flexible circuit-breaker configuration for industrial and commercial low-voltage distribution, combining established thermomagnetic protection technology with the modular XT5 platform.
