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1SDA100444R1 ABB XT5S 400 TMG 320A 3-Pole Moulded Case Circuit Breaker
ABB 1SDA100444R1 XT5S 400 TMG is a 320 A three-pole fixed moulded-case circuit breaker with front terminals, adjustable 224–320 A thermal protection and 800–1600 A instantaneous magnetic protection for generator, transformer and low-voltage installation protection.
£893.99
Why Choose the ABB XT5S 400 TMG 320-1600 1SDA100444R1 Circuit Breaker?
The ABB 1SDA100444R1 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. The TMG release provides adjustable thermal overload protection together with adjustable instantaneous magnetic short-circuit protection, allowing the breaker to respond effectively to sustained overloads and high fault currents.
The 1SDA100444R1 has a 320 A rated current, with thermal protection adjustable from 224–320 A and instantaneous magnetic protection adjustable from 800–1600 A. Its XT5S breaking-capacity class provides an ultimate short-circuit breaking capacity of 50 kA at 415 V AC, making it a robust choice for demanding generator and low-voltage distribution applications.
Key Advantages
- High-performance ABB SACE Tmax XT5S moulded-case circuit breaker.
- 320 A rated current for demanding power circuits.
- TMG thermomagnetic trip unit with adjustable overload and short-circuit protection.
- Thermal protection adjustable from 224–320 A.
- Instantaneous magnetic protection adjustable from 800–1600 A.
- 50 kA ultimate short-circuit breaking capacity at 415 V AC.
- Particularly suitable for generator protection as well as transformer and installation protection.
- Fixed three-pole construction with front terminals for straightforward switchboard integration.
Key Features
- ABB SACE Tmax XT5S moulded-case circuit breaker.
- 320 A rated current.
- TMG thermomagnetic protection release.
- Adjustable thermal overload protection.
- Adjustable instantaneous magnetic short-circuit protection.
- Three-pole circuit-breaker configuration.
- Fixed mounting design.
- Front main-circuit terminals.
- S breaking-capacity class.
- Rated operational voltage 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 protection. For the 1SDA100444R1, the thermal element can be set between 224 A and 320 A, while the magnetic short-circuit threshold can be adjusted between 800 A and 1600 A. This provides flexibility when coordinating the breaker with the characteristics of the protected electrical system.
The TMG configuration is particularly well suited to generator protection, where an appropriately selected magnetic threshold can help provide dependable fault protection while accommodating generator operating characteristics. Combined with the XT5S platform's 50 kA breaking capacity at 415 V AC, the breaker provides robust protection for demanding industrial 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 | 1SDA100444R1 |
| Product type | Moulded-case circuit breaker (MCCB) |
| Rated current (In) | 320 A |
| Trip unit | TMG thermomagnetic release |
| Thermal overload setting | 224–320 A (0.7–1 × In) |
| Instantaneous magnetic setting (I3) | 800–1600 A (2.5–5 × In) |
| Number of poles | 3 |
| Ultimate short-circuit breaking capacity (Icu) at 415 V AC | 50 kA |
| Ultimate short-circuit breaking capacity (Icu) at 690 V AC | 25 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 |
| Power loss | 16.9 W |
| Net weight | 5.263 kg |
| GTIN / EAN | 8056221005210 |
Frequently Asked Questions
What is the ABB 1SDA100444R1 used for?
The ABB 1SDA100444R1 is a 320 A three-pole moulded-case circuit breaker with TMG thermomagnetic protection, particularly suited to generator, transformer and low-voltage installation protection.
What is the rated current of the ABB XT5S 400 TMG 320-1600?
The 1SDA100444R1 has a rated current of 320 A, with its thermal overload protection adjustable between 224 A and 320 A.
What is the magnetic trip range of the ABB 1SDA100444R1?
The TMG release provides an adjustable instantaneous magnetic short-circuit setting of 800–1600 A, corresponding to approximately 2.5–5 times the breaker's 320 A rated current.
Is the ABB 1SDA100444R1 suitable for generator protection?
Yes. The XT5S 400 TMG 320-1600 is specifically suited to generator protection, with adjustable thermal and magnetic protection that can be coordinated with the requirements of the protected generator installation.
What is the breaking capacity of the ABB XT5S 400 TMG?
The XT5S version provides an ultimate short-circuit breaking capacity (Icu) of 50 kA at 415 V AC and 25 kA at 690 V AC.
Trusted ABB Generator and Circuit Protection Technology
ABB SACE Tmax XT moulded-case circuit breakers combine dependable switching, configurable protection and compact construction for generator, transformer and industrial low-voltage power distribution applications.
