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1SDA100740R1 ABB XT6S 800 TMA 800-8000 3-Pole Circuit Breaker
ABB 1SDA100740R1 is an 800 A three-pole SACE Tmax XT6S moulded case circuit breaker with a TMA thermomagnetic trip unit, fixed mounting, front terminals and adjustable overload and short-circuit protection.
£1,763.53
Why Choose the ABB XT6S 800 TMA 1SDA100740R1 Circuit Breaker?
The ABB 1SDA100740R1 is a high-performance three-pole moulded case circuit breaker (MCCB) designed for reliable overload and short-circuit protection in industrial and commercial low-voltage power distribution systems. Part of the established ABB SACE Tmax XT series, this XT6S 800 model combines fixed mounting, front terminals and a TMA thermomagnetic trip unit in a robust circuit protection solution.
Rated at 800 A, the XT6S is engineered for demanding high-current distribution applications. Its TMA thermomagnetic release provides thermal overload protection together with adjustable instantaneous magnetic short-circuit protection, helping safeguard cables, switchboards and connected electrical equipment against damaging overcurrent conditions.
The XT6S performance level provides a rated ultimate short-circuit breaking capacity of 50 kA at 415 V AC. The instantaneous short-circuit release is adjustable from 4000–8000 A, while the thermal overload setting range extends from 560–800 A, allowing the breaker protection to be matched to the requirements of the installation.
Key Advantages
- High-current 800 A moulded case circuit breaker for demanding power distribution applications.
- Three-pole configuration designed for three-phase electrical systems.
- TMA thermomagnetic release provides overload and short-circuit protection.
- 50 kA ultimate breaking capacity at 415 V AC for robust fault interruption.
- Adjustable thermal overload setting from 560–800 A.
- Adjustable instantaneous short-circuit release from 4000–8000 A.
Key Features
- ABB SACE Tmax XT, XT6 frame.
- 800 A rated current.
- Three-pole fixed circuit breaker.
- TMA thermomagnetic trip unit.
- Thermal overload protection adjustable from 0.7–1 × In.
- Instantaneous magnetic protection adjustable from 5–10 × In.
- 4000–8000 A instantaneous trip adjustment range.
- 50 kA Icu at 415 V AC.
- 1000 V rated insulation voltage.
- 8 kV rated impulse withstand voltage.
- IP20 protection rating.
- Fixed installation with front terminals.
Reliable Thermomagnetic Protection for Power Distribution
Moulded case circuit breakers such as the ABB XT6S protect electrical distribution systems against overloads and short circuits while also providing circuit switching and isolation. The TMA thermomagnetic release combines a thermal element for sustained overload conditions with a magnetic element that rapidly operates the breaker when severe short-circuit currents occur.
The adjustable protection ranges of the 1SDA100740R1 provide flexibility when coordinating the breaker with cables and downstream equipment. Its thermal setting can be adjusted between 560–800 A, while the instantaneous magnetic release can be configured between 4000–8000 A for high-current short-circuit protection.
Typical Applications
- Industrial low-voltage switchboards and distribution panels.
- Main incoming and high-current feeder protection.
- Commercial building electrical distribution systems.
- Manufacturing and process plant power distribution.
- Transformer and generator circuit protection.
- Cable and installation protection in three-phase electrical systems.
Technical Specifications
| Series | SACE Tmax XT |
|---|---|
| Frame size | XT6 |
| Order code / SKU | 1SDA100740R1 |
| Product group | T-Max XT 250 Range |
| Product type | Moulded case circuit breaker |
| Rated current (In) | 800 A |
| Rated uninterrupted current (Iu) | 800 A |
| Number of poles | 3 |
| Rated operational voltage | 690 V AC |
| Rated insulation voltage (Ui) | 1000 V |
| Rated impulse withstand voltage (Uimp) | 8 kV |
| Rated ultimate short-circuit breaking capacity (Icu) at 415 V AC | 50 kA |
| Rated short-time withstand current (Icw) | 10 kA |
| Trip unit | TMA |
| Release type | Thermomagnetic |
| Thermal overload setting range | 560–800 A |
| Thermal overload adjustment | 0.7–1 × In |
| Instantaneous short-circuit setting range | 4000–8000 A |
| Instantaneous short-circuit adjustment | 5–10 × In |
| Interruption performance level | S |
| Mounting version | Fixed |
| Terminal connection | Front |
| Protection rating | IP20 |
| Electrical durability | 5000 cycles |
| Motor drive | Optional |
| DIN rail mounting | No |
| Power loss | 54.2 W |
| Standards | IEC 60947-2 |
| EAN | 8056221003650 |
Frequently Asked Questions
What is the ABB 1SDA100740R1 used for?
The ABB 1SDA100740R1 is an 800 A three-pole moulded case circuit breaker designed to provide overload and short-circuit protection in industrial and commercial low-voltage power distribution systems.
What trip unit is fitted to the ABB 1SDA100740R1?
The breaker is fitted with a TMA thermomagnetic trip unit, combining adjustable thermal overload protection with adjustable instantaneous magnetic short-circuit protection.
What is the breaking capacity of the ABB XT6S 800?
The XT6S 800 has a rated ultimate short-circuit breaking capacity of 50 kA at 415 V AC.
What protection settings are available on the 1SDA100740R1?
The thermal overload release can be adjusted from 560–800 A, while the instantaneous short-circuit release is adjustable from 4000–8000 A.
How is the ABB 1SDA100740R1 installed?
This model is a fixed three-pole circuit breaker with front terminals, designed for integration into low-voltage switchboards and electrical distribution panels.
Trusted Power Distribution Technology from ABB
ABB SACE Tmax XT moulded case circuit breakers are engineered for reliable low-voltage power distribution, combining robust interruption performance, dependable thermomagnetic protection and practical installation options for demanding industrial and commercial electrical systems.
