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1SDA054285R1 ABB T4L 250 TMA 200-2000 4-Pole MCCB
ABB 1SDA054285R1 is a T4L 250 fixed four-pole moulded case circuit breaker with a 200 A TMA thermal-magnetic release, adjustable 1000–2000 A magnetic protection, fully rated neutral and 120 kA breaking capacity at 400 V AC.
£2,246.42
Why Choose the ABB 1SDA054285R1 T4L 250 Moulded Case Circuit Breaker?
The ABB 1SDA054285R1, designated T4L 250 TMA 200-2000 4p F F InN=100%In, is a high-performance moulded case circuit breaker (MCCB) designed for reliable protection of demanding low-voltage power distribution systems. Part of the proven ABB SACE Tmax T4 series, it combines a compact 250 A frame, thermal-magnetic protection and high short-circuit interruption capability for industrial and commercial installations.
This circuit breaker incorporates an ABB TMA thermal-magnetic release rated at 200 A. Its thermal element provides overload protection, while the magnetic short-circuit protection is adjustable from 1000–2000 A, allowing the instantaneous protection threshold to be matched to the requirements of the protected circuit.
The T4L 250 is supplied as a fixed four-pole circuit breaker with front terminals and a fully rated neutral. Its L performance level provides an ultimate short-circuit breaking capacity of 120 kA at 400 V AC, making the 1SDA054285R1 suitable for three-phase four-wire distribution systems where high fault-current interruption and full neutral protection are required.
Key Advantages
- Proven ABB SACE Tmax T4L moulded case circuit breaker for low-voltage power distribution.
- 200 A TMA thermal-magnetic release provides dependable overload and short-circuit protection.
- Adjustable magnetic protection from 1000–2000 A supports application-specific short-circuit settings.
- Four-pole configuration with fully rated neutral supports three-phase four-wire distribution systems.
- High 120 kA ultimate short-circuit breaking capacity at 400 V AC.
- Fixed mounting with front terminals provides practical integration into low-voltage switchboards.
Key Features
- ABB SACE Tmax T4L 250 series.
- 250 A rated uninterrupted current.
- 200 A TMA thermal-magnetic release.
- Thermal overload protection.
- Adjustable magnetic short-circuit protection from 1000–2000 A.
- Four-pole circuit breaker configuration.
- Fully rated neutral: InN=100%In.
- Fixed mounting construction.
- Front terminals for main circuit connections.
- L short-circuit performance level.
Reliable Thermal-Magnetic Protection for Power Distribution
The ABB T4L 250 combines thermal and magnetic protection technologies to protect low-voltage distribution circuits against different overcurrent conditions. The thermal element responds to sustained overloads, while the magnetic element provides rapid short-circuit protection with an adjustable threshold from 1000–2000 A, giving system designers flexibility when coordinating protection with downstream equipment.
With four poles and a fully rated neutral at 100% of the phase rating, the 1SDA054285R1 is particularly suitable for three-phase four-wire distribution systems requiring protection of the neutral conductor. Its fixed construction, front terminals and 120 kA breaking capacity at 400 V AC provide a robust solution for demanding industrial and commercial switchboards.
Typical Applications
- Industrial low-voltage power distribution systems.
- Three-phase four-wire distribution networks.
- Main and feeder protection in electrical switchboards.
- Commercial building electrical distribution.
- Manufacturing and process plant power systems.
- Installations requiring fully rated neutral protection and high short-circuit interruption capability.
Technical Specifications
| Series | SACE Tmax T4 |
|---|---|
| ABB order code | 1SDA054285R1 |
| Product group | 310511-T-Max T4 - T8 |
| Product type | Moulded case circuit breaker (MCCB) |
| Frame | T4L 250 |
| Rated uninterrupted current (Iu) | 250 A |
| Rated current (In) | 200 A |
| Trip unit | TMA thermal-magnetic release |
| Magnetic short-circuit adjustment (I3) | 1000–2000 A |
| Protection functions | Thermal overload and magnetic short-circuit protection |
| Number of poles | 4 |
| Neutral protection | InN=100%In, fully rated neutral |
| Rated operational voltage | 690 V AC / 750 V DC |
| Rated insulation voltage (Ui) | 1000 V |
| Rated impulse withstand voltage (Uimp) | 8 kV |
| Ultimate short-circuit breaking capacity | 120 kA at 400 V AC |
| Short-circuit performance level | L |
| Mounting | Fixed |
| Terminal arrangement | Front terminals |
| Electrical durability | 8,000 cycles |
| Mechanical durability | 20,000 cycles |
| Power loss at rated operating conditions | 9.9 W per pole |
| Product net weight | 3.5 kg |
| EAN | 8015644553821 |
Frequently Asked Questions
What is the ABB 1SDA054285R1 used for?
The ABB 1SDA054285R1 is a four-pole moulded case circuit breaker designed to protect low-voltage distribution circuits against overload and short-circuit conditions.
What is the rated current of the ABB 1SDA054285R1?
The circuit breaker has a rated uninterrupted current of 250 A and uses a 200 A TMA thermal-magnetic release.
What does TMA 200-2000 mean on the ABB 1SDA054285R1?
The designation identifies a 200 A TMA thermal-magnetic release with an adjustable magnetic short-circuit protection range of 1000–2000 A.
What does InN=100%In mean?
InN=100%In means the neutral is fully rated relative to the phase current, providing full neutral protection for suitable three-phase four-wire distribution systems.
What is the breaking capacity of the ABB 1SDA054285R1?
The T4L 250 has an ultimate short-circuit breaking capacity of 120 kA at 400 V AC, providing high fault-current interruption capability for demanding installations.
How many poles does the ABB 1SDA054285R1 have?
The 1SDA054285R1 is a four-pole MCCB with a fully rated neutral, making it suitable for appropriate three-phase four-wire distribution systems.
How is the ABB 1SDA054285R1 installed?
The breaker has a fixed mounting configuration with front terminals for permanent integration into low-voltage electrical switchboards and distribution assemblies.
Trusted by Electrical Professionals Worldwide
ABB SACE Tmax moulded case circuit breakers provide dependable overcurrent protection, high short-circuit interruption performance and flexible protection configurations for industrial and commercial low-voltage power distribution systems.
