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1SDA068228R1 ABB XT3S 250 TMD 250-2500 4-Pole MCCB InN=50%
ABB 1SDA068228R1 is an XT3S 250 four-pole fixed moulded case circuit breaker with a 250 A TMD thermomagnetic trip unit, 2500 A instantaneous protection, front terminals and a 50% rated neutral pole.
£970.91
Why Choose the ABB XT3S 250 TMD 250-2500 4p MCCB?
The ABB XT3S 250 TMD 250-2500 4p F F InN=50%, order code 1SDA068228R1, is a four-pole moulded case circuit breaker from the ABB SACE Tmax XT range. Designed for low-voltage electrical distribution, it combines a 250 A frame and rated current with a thermomagnetic TMD trip unit for dependable overload and short-circuit protection.
The breaker incorporates an ABB TMD thermomagnetic release with a 250 A overload protection setting and 2500 A instantaneous magnetic protection. The neutral pole is rated at 50% of the phase current, providing an appropriate four-pole configuration for applications where switched neutral protection at half phase rating is specified.
The XT3S performance level provides a short-circuit breaking capacity of 50 kA for this Tmax XT family configuration. The 1SDA068228R1 is supplied as a fixed circuit breaker with front terminals, making it suitable for straightforward integration into industrial switchboards, distribution boards and electrical control panels.
Key Advantages
- Genuine ABB SACE Tmax XT3S moulded case circuit breaker.
- 250 A rated current for low-voltage power distribution.
- TMD thermomagnetic trip unit for overload and short-circuit protection.
- 2500 A instantaneous magnetic protection.
- Four-pole configuration with neutral rated at 50%.
- 50 kA breaking-capacity class for demanding distribution systems.
- Fixed mounting and front terminals simplify panel integration.
- Part of ABB's established SACE Tmax XT circuit protection platform.
Key Features
- ABB SACE Tmax XT3S 250 MCCB.
- 250 A rated current.
- TMD thermomagnetic protection release.
- 250 A thermal overload setting.
- 2500 A magnetic short-circuit setting.
- 4-pole construction.
- Neutral rating: 50% of phase current.
- S breaking-capacity performance class.
- 50 kA short-circuit breaking capacity.
- Fixed installation.
- Front terminal connection.
- Designed for overload and short-circuit protection in low-voltage AC distribution systems.
Dependable Thermomagnetic Circuit Protection
The ABB TMD release combines thermal overload protection with magnetic short-circuit protection in a mechanically straightforward and dependable trip system. The thermal element protects conductors and equipment against sustained overcurrents, while the magnetic element responds rapidly to high fault currents.
For the 1SDA068228R1, the TMD configuration is rated at 250 A with instantaneous magnetic protection at 2500 A. Its four-pole arrangement includes a neutral pole rated at 50% of the phase current, making this specific XT3S configuration suitable for distribution systems requiring simultaneous switching of phases and neutral with the specified neutral rating.
Typical Applications
- Industrial low-voltage distribution boards.
- Commercial electrical distribution systems.
- Three-phase and neutral feeder protection.
- Industrial switchboards and panel assemblies.
- Machine and equipment power distribution.
- Building services electrical systems.
- OEM electrical control panels.
- Circuits requiring thermomagnetic overload and short-circuit protection.
Technical Specifications
| Series | SACE Tmax XT |
|---|---|
| Product group | T-Max XT 250 Range |
| ABB order code | 1SDA068228R1 |
| Product type | Moulded case circuit breaker (MCCB) |
| Frame | XT3 |
| Performance class | S |
| Frame size | 250 A |
| Rated current | 250 A |
| Trip unit | TMD thermomagnetic |
| Thermal overload setting | 250 A |
| Instantaneous magnetic setting | 2500 A |
| Protection functions | Overload and short circuit |
| Number of poles | 4 |
| Neutral rating | 50% |
| Short-circuit breaking capacity | 50 kA |
| Mounting | Fixed |
| Terminal arrangement | Front terminals |
| Standard | IEC 60947-2 |
Frequently Asked Questions
What is the ABB 1SDA068228R1?
The ABB 1SDA068228R1 is an XT3S 250 four-pole moulded case circuit breaker with a 250 A TMD thermomagnetic trip unit, fixed mounting, front terminals and a 50% rated neutral pole.
What is the current rating of the ABB XT3S 1SDA068228R1?
The circuit breaker has a rated current of 250 A, with its TMD release specified as 250-2500.
What does TMD 250-2500 mean?
The TMD designation identifies a thermomagnetic trip unit. In this configuration, the breaker has 250 A thermal overload protection and 2500 A instantaneous magnetic short-circuit protection.
What does InN=50% mean on the ABB 1SDA068228R1?
InN=50% indicates that the neutral pole is rated at 50% of the phase-current rating in this four-pole XT3S circuit breaker configuration.
How is the ABB XT3S 250 1SDA068228R1 installed?
The 1SDA068228R1 is supplied as a fixed four-pole circuit breaker with front terminals for integration into compatible low-voltage switchboards and distribution panels.
Trusted ABB Circuit Protection
ABB SACE Tmax XT moulded case circuit breakers combine compact construction, dependable protection and flexible installation options for industrial, commercial and infrastructure low-voltage electrical distribution systems.
