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1SDA070176R1 ABB XT3S 250 TMD 200-2000 3-Pole Circuit Breaker
ABB 1SDA070176R1 XT3S 250 is a fixed three-pole 200 A moulded case circuit breaker with front terminals and a TMD thermal-magnetic trip unit featuring a 2000 A magnetic trip setting and 50 °C reference temperature.
£656.18
Why Choose the ABB 1SDA070176R1 XT3S 250 TMD 200-2000 3-Pole Circuit Breaker?
The ABB 1SDA070176R1, designated XT3S 250 TMD 200-2000 3p F F 50°C, is a fixed three-pole moulded case circuit breaker (MCCB) from the ABB SACE Tmax XT range. Built on the XT3S 250 frame, it features a 200 A thermal-magnetic trip unit for dependable overload and short-circuit protection in low-voltage power distribution systems.
The integrated TMD thermal-magnetic release combines adjustable thermal overload protection with magnetic short-circuit protection. Its thermal setting can be adjusted to suit the protected circuit, while the magnetic trip threshold is specified at 2000 A, providing rapid interruption of high fault currents.
This version is designed for operation with its rated current referenced at 50 °C and is supplied in a fixed configuration with front terminals. The XT3S performance class combines compact construction with robust interruption capability, making the breaker suitable for industrial, commercial and infrastructure distribution applications.
Key Advantages
- Genuine ABB SACE Tmax XT3S 250 moulded case circuit breaker.
- 200 A TMD thermal-magnetic protection for reliable feeder and distribution circuit protection.
- Adjustable thermal protection supports coordination with the connected load and conductors.
- 2000 A magnetic trip threshold provides fast short-circuit protection.
- Specified for a 50 °C reference temperature.
- Fixed mounting with front terminals supports straightforward switchboard integration.
Key Features
- ABB SACE Tmax XT3S 250 circuit breaker.
- 200 A rated current.
- 3-pole configuration.
- TMD thermal-magnetic trip unit.
- Thermal overload protection with adjustable current setting.
- 2000 A magnetic short-circuit trip setting.
- 50 °C reference temperature.
- Fixed installation.
- Front terminals.
Reliable Thermal-Magnetic Circuit Protection
A TMD thermal-magnetic trip unit combines two complementary protection principles. The thermal element responds to sustained overcurrents and overloads, while the magnetic element operates rapidly when a severe short-circuit current exceeds its trip threshold. This established protection technology provides dependable operation without requiring an external power supply for the trip unit.
For the ABB 1SDA070176R1, the 200 A thermal protection is paired with a 2000 A magnetic threshold. Together with the XT3S breaking-performance level and 50 °C reference-temperature configuration, this makes the breaker well suited to professional low-voltage distribution installations requiring robust thermal-magnetic protection.
Typical Applications
- Industrial low-voltage distribution switchboards.
- Commercial building power distribution systems.
- Three-phase feeder and distribution circuits.
- Manufacturing and process plant electrical systems.
- Machine and equipment distribution panels.
- Infrastructure and utility distribution assemblies.
- Circuits requiring adjustable thermal and magnetic short-circuit protection.
Technical Specifications
| Series | SACE Tmax XT |
|---|---|
| Product group | T-Max XT 250 Range |
| Frame / size | XT3S 250 |
| ABB order code | 1SDA070176R1 |
| Product type | Moulded case circuit breaker |
| Application | Low-voltage power distribution |
| Rated current (In) | 200 A |
| Frame rated uninterrupted current (Iu) | 250 A |
| Number of poles | 3 |
| Trip unit | TMD thermal-magnetic release |
| Thermal protection | Adjustable overload protection |
| Magnetic trip setting | 2000 A |
| Reference temperature | 50 °C |
| Installation | Fixed |
| Terminals | Front terminals |
| Rated operational voltage | up to 690 V AC |
| Rated insulation voltage (Ui) | 800 V |
| Rated impulse withstand voltage (Uimp) | 8 kV |
| Rated ultimate short-circuit breaking capacity (Icu) at 380/415 V AC | 50 kA |
| Rated service short-circuit breaking capacity (Ics) at 380/415 V AC | 37.5 kA |
| Performance class | XT3S |
| Standard | IEC 60947-2 |
Frequently Asked Questions
What is the ABB 1SDA070176R1?
The ABB 1SDA070176R1 is an XT3S 250 three-pole moulded case circuit breaker with a 200 A TMD thermal-magnetic trip unit, fixed mounting and front terminals.
What does TMD mean on the ABB XT3S 250?
TMD identifies a thermal-magnetic trip unit. The thermal element provides overload protection, while the magnetic element provides rapid protection against high short-circuit currents.
What is the magnetic trip setting of the ABB 1SDA070176R1?
The magnetic short-circuit trip setting is 2000 A, as indicated by the TMD 200-2000 designation.
What does 50°C mean in the ABB 1SDA070176R1 designation?
The 50 °C designation identifies the reference ambient temperature associated with the thermal trip calibration of this circuit breaker version.
How is the ABB 1SDA070176R1 installed?
The breaker is supplied in a fixed three-pole configuration with front terminals for installation in compatible low-voltage switchboards and distribution panels.
Trusted ABB Low-Voltage Protection Technology
ABB SACE Tmax XT moulded case circuit breakers combine compact construction, proven interruption technology and coordinated protection, making the XT3S 250 TMD a dependable solution for industrial and commercial low-voltage power distribution systems.
