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1SDA067231R1 ABB TMA 50-500 XT2 3p
ABB 1SDA067231R1 TMA 50-500 XT2 3p is a thermal-magnetic trip unit with 50 A thermal and 500 A magnetic protection settings for compatible three-pole SACE Tmax XT2 moulded case circuit breakers.
£172.51
Why Choose the ABB TMA 50-500 XT2 3p?
The ABB TMA 50-500 XT2 3p is a thermal-magnetic trip unit designed for 3-pole ABB SACE Tmax XT2 moulded case circuit breakers. Identified by ABB order code 1SDA067231R1, it provides thermal overload and magnetic short-circuit protection functions for compatible XT2 circuit-breaker configurations.
The TMA trip-unit design combines an adjustable thermal protection setting with magnetic protection, providing an electromechanical protection solution without relying on an electronic trip unit. The authoritative model designation specifies a 50 A thermal setting and 500 A magnetic setting.
Designed specifically for the SACE Tmax XT2 platform, the 1SDA067231R1 provides a manufacturer-matched protection unit for three-pole applications. Its dedicated XT2 compatibility makes it suitable for new circuit-breaker configurations as well as maintenance and replacement requirements where this exact ABB TMA trip unit is specified.
Key Advantages
- Genuine ABB SACE Tmax XT2 trip unit.
- Combines thermal overload and magnetic short-circuit protection.
- Specified with a 50 A thermal setting.
- Specified with a 500 A magnetic setting.
- Designed specifically for 3-pole XT2 circuit breakers.
- Electromechanical TMA design provides a straightforward protection solution for compatible installations.
Key Features
- ABB SACE Tmax XT protection accessory.
- TMA thermal-magnetic trip unit.
- Compatible with the XT2 frame.
- 3-pole configuration.
- Thermal setting: 50 A.
- Magnetic setting: 500 A.
- Provides overload and short-circuit protection functions when installed in the compatible circuit breaker.
- ABB order code 1SDA067231R1.
Thermal-Magnetic Protection for SACE Tmax XT2
A thermal-magnetic trip unit uses two complementary protection principles. The thermal element responds to sustained overcurrent conditions associated with overloads, while the magnetic element provides rapid operation when the current reaches the specified short-circuit protection threshold.
The ABB 1SDA067231R1 integrates these functions into a TMA trip unit specifically matched to the three-pole SACE Tmax XT2 platform. This makes it suitable for installations requiring conventional thermal-magnetic circuit protection with the specified 50 A / 500 A protection characteristics.
Typical Applications
- ABB SACE Tmax XT2 3-pole moulded case circuit breakers.
- Low-voltage distribution switchboards.
- Industrial electrical distribution systems.
- Machinery and equipment distribution panels.
- Commercial electrical installations.
- Replacement or maintenance of compatible XT2 thermal-magnetic trip units.
Technical Specifications
| Series | SACE Tmax XT |
|---|---|
| Product type | Thermal-magnetic trip unit |
| ABB order code | 1SDA067231R1 |
| ABB product group | T-Max XT 250 Range |
| Trip-unit type | TMA |
| Compatible frame | XT2 |
| Number of poles | 3 |
| Thermal protection setting | 50 A |
| Magnetic protection setting | 500 A |
| Protection functions | Overload and short circuit |
Frequently Asked Questions
What is the ABB 1SDA067231R1?
The ABB 1SDA067231R1 is a TMA thermal-magnetic trip unit designed for compatible 3-pole ABB SACE Tmax XT2 moulded case circuit breakers.
Which ABB circuit-breaker frame is the 1SDA067231R1 designed for?
The trip unit is specifically designed for the ABB SACE Tmax XT2 circuit-breaker frame.
What protection settings are specified for the ABB TMA 50-500 XT2 3p?
The authoritative model designation specifies a 50 A thermal protection setting and a 500 A magnetic protection setting.
What protection functions does the ABB TMA trip unit provide?
The TMA trip unit provides thermal overload protection together with magnetic short-circuit protection when installed in its compatible XT2 circuit breaker.
Is the ABB 1SDA067231R1 designed for a 3-pole or 4-pole circuit breaker?
The ABB 1SDA067231R1 is specifically designated for a 3-pole SACE Tmax XT2 circuit breaker.
Is the ABB 1SDA067231R1 an electronic trip unit?
No. The TMA is a thermal-magnetic trip unit, using thermal and magnetic protection principles rather than an electronic protection unit.
Trusted by Electrical Panel Builders Worldwide
ABB SACE Tmax XT circuit-breaker protection components are widely specified by switchboard manufacturers, electrical contractors, OEMs and industrial panel builders for dependable low-voltage power distribution applications.
