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1SDA100445R1 ABB XT5S 400 TMG 400A 3-Pole Moulded Case Circuit Breaker
ABB 1SDA100445R1 XT5S 400 TMG is a 400 A three-pole fixed moulded-case circuit breaker with front terminals and adjustable 1000–2000 A instantaneous magnetic protection for generator, transformer and low-voltage installation protection.
£893.99
Why Choose the ABB XT5S 400 TMG 400-2000 1SDA100445R1 Circuit Breaker?
The ABB 1SDA100445R1 is a high-performance SACE Tmax XT5S moulded-case circuit breaker (MCCB) designed for reliable protection and switching in low-voltage electrical systems. This fixed three-pole circuit breaker features front terminals and a TMG thermomagnetic trip unit, making it particularly suitable for generator, transformer and installation protection applications.
As part of the ABB SACE Tmax XT series, the XT5S combines compact construction with dependable thermomagnetic protection. Its TMG release provides thermal overload protection together with adjustable instantaneous magnetic short-circuit protection, offering a practical solution for protecting generators and other demanding low-voltage circuits without requiring an electronic trip unit.
The 1SDA100445R1 has a 400 A rated current and an adjustable instantaneous magnetic protection setting of 1000–2000 A. The XT5S breaking-capacity class provides an ultimate short-circuit breaking capacity of 50 kA at 415 V AC, while the fixed three-pole construction and front terminals support straightforward integration into industrial switchboards and distribution assemblies.
Key Advantages
- High-performance ABB SACE Tmax XT5S moulded-case circuit breaker.
- 400 A rated current for demanding power circuits.
- TMG thermomagnetic trip unit for overload and short-circuit protection.
- Adjustable instantaneous magnetic protection from 1000–2000 A.
- 50 kA ultimate short-circuit breaking capacity at 415 V AC.
- Designed for generator, transformer and installation protection.
- Fixed three-pole configuration with front terminals for straightforward switchboard integration.
Key Features
- ABB SACE Tmax XT5S 400 moulded-case circuit breaker.
- 400 A rated current (In).
- TMG thermomagnetic protection release.
- Thermal overload protection.
- 1000–2000 A adjustable instantaneous magnetic short-circuit protection.
- Three-pole circuit-breaker configuration.
- Fixed mounting design.
- Front terminals for main-circuit connections.
- S breaking-capacity class within the SACE Tmax XT5 range.
- Designed for low-voltage power systems up to 690 V AC.
- IP20 degree of protection.
- Optional motor operating mechanism compatibility.
Reliable Thermomagnetic Protection for Generators and Installations
The ABB TMG release combines thermal overload protection with adjustable instantaneous magnetic short-circuit protection. On the 1SDA100445R1, the magnetic threshold can be adjusted from 1000 A to 2000 A, allowing the circuit breaker to be coordinated with the characteristics and prospective fault currents of the protected electrical installation.
The TMG configuration is particularly suited to generator protection, while also supporting transformer and general installation protection. Combined with the XT5S platform's 50 kA breaking capacity at 415 V AC, the breaker provides robust protection for demanding industrial and commercial low-voltage power systems.
Typical Applications
- Generator protection and generator distribution systems.
- Transformer protection.
- Industrial low-voltage power distribution.
- Main and sub-distribution switchboards.
- Feeder and cable protection.
- Manufacturing and process installations.
- Commercial and infrastructure electrical systems.
Technical Specifications
| Series | SACE Tmax XT |
|---|---|
| Frame size | XT5 |
| Order code | 1SDA100445R1 |
| Product type | Moulded-case circuit breaker (MCCB) |
| Rated current (In) | 400 A |
| Rated uninterrupted current (Iu) | 400 A |
| Trip unit | TMG thermomagnetic release |
| Instantaneous magnetic setting (I3) | 1000–2000 A |
| Number of poles | 3 |
| Ultimate short-circuit breaking capacity (Icu) at 415 V AC | 50 kA |
| Rated operational voltage | up to 690 V AC |
| Breaking-capacity class | S |
| Mounting type | Fixed |
| Terminal position | Front |
| Main circuit connection | Bolt connection |
| Operating element | Toggle |
| Integrated earth-fault protection | No |
| Degree of protection | IP20 |
| Motor operator | Optional |
| Standard | IEC / EN 60947-2 |
| Product dimensions (W × H × D) | 140 × 205 × 103.5 mm |
| Net weight | 4.775 kg |
| GTIN / EAN | 8056221005227 |
Frequently Asked Questions
What is the ABB 1SDA100445R1 used for?
The ABB 1SDA100445R1 is a 400 A three-pole moulded-case circuit breaker with TMG thermomagnetic protection, designed for generator, transformer and low-voltage installation protection.
What is the rated current of the ABB XT5S 400 TMG 400-2000?
The ABB 1SDA100445R1 has a rated current of 400 A and is based on the SACE Tmax XT5S 400 frame.
What is the magnetic trip range of the ABB 1SDA100445R1?
The TMG release provides an adjustable instantaneous magnetic short-circuit setting of 1000–2000 A.
Is the ABB 1SDA100445R1 suitable for generator protection?
Yes. The XT5S 400 TMG 400-2000 is designed for applications including generator protection, with thermomagnetic protection and an adjustable instantaneous magnetic threshold for coordination with the protected installation.
What is the breaking capacity of the ABB XT5S 400 TMG?
The XT5S breaking-capacity class provides an ultimate short-circuit breaking capacity (Icu) of 50 kA at 415 V AC.
Trusted ABB Generator and Circuit Protection Technology
ABB SACE Tmax XT moulded-case circuit breakers combine dependable switching, robust thermomagnetic protection and compact construction for generator, transformer and industrial low-voltage power distribution applications.
