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1SDA055075R1 ABB T4L250RM25 MAG-ONL T4L 250 MA 25-350 3P F F Moulded Case Circuit Breaker
ABB T4L250RM25 MAG-ONL moulded case circuit breaker with 250 A rated current and magnetic release for reliable industrial short-circuit protection.
£1,155.98
Why Choose the ABB T4L250RM25 MAG-ONL Moulded Case Circuit Breaker?
The ABB T4L250RM25 MAG-ONL is a high-performance moulded case circuit breaker (MCCB) designed for reliable protection and switching in industrial low-voltage electrical distribution systems. As part of the trusted ABB SACE Tmax T4L series, it provides dependable short-circuit protection with a magnetic-only MA release for applications requiring precise fault protection. :chatgpt-content-reference{index="0"}
This fixed three-pole circuit breaker features front terminals and a magnetic release configuration, making it suitable for protecting cables, distribution systems and industrial equipment where instantaneous short-circuit protection is required without thermal overload protection. The compact Tmax T design provides robust performance, long service life and flexible installation options. :chatgpt-content-reference{index="1"}
With a rated uninterrupted current of 250 A, a magnetic release setting range of I3 =150–350 A and a three-pole fixed front connection arrangement, the T4L250RM25 is designed for demanding industrial power distribution applications requiring reliable circuit interruption capability. :chatgpt-content-reference{index="2"}
Key Advantages
- Reliable ABB Tmax T4L moulded case circuit breaker technology for industrial protection.
- 250 A rated uninterrupted current for low-voltage distribution applications. :chatgpt-content-reference{index="3"}
- Magnetic-only MA release for fast short-circuit protection. :chatgpt-content-reference{index="4"}
- Three-pole fixed front terminal configuration for straightforward installation. :chatgpt-content-reference{index="5"}
- High short-circuit breaking performance for demanding electrical networks. :chatgpt-content-reference{index="6"}
- Long mechanical and electrical service life for dependable operation. :chatgpt-content-reference{index="7"}
Key Features
- ABB SACE Tmax T4L series MCCB.
- Rated uninterrupted current: 250 A. :chatgpt-content-reference{index="8"}
- Three-pole (3P) fixed circuit breaker. :chatgpt-content-reference{index="9"}
- Front fixed terminals for panel installation. :chatgpt-content-reference{index="10"}
- MA magnetic release with adjustable instantaneous trip range I3 =150–350 A. :chatgpt-content-reference{index="11"}
- Rated operational voltage up to 690 V AC and 750 V DC. :chatgpt-content-reference{index="12"}
- Rated insulation voltage of 1000 V. :chatgpt-content-reference{index="13"}
- Suitable for industrial power distribution and equipment protection.
Reliable Protection for Industrial Electrical Systems
Moulded case circuit breakers such as the ABB T4L250RM25 protect electrical installations by rapidly disconnecting circuits during fault conditions. The magnetic-only release provides fast response to high fault currents, helping minimise equipment damage and improve system safety.
The ABB Tmax T series is engineered for industrial environments where reliability, durability and flexible installation are essential. Its compact construction, high breaking capacity and robust mechanical design make it suitable for a wide range of power distribution applications. :chatgpt-content-reference{index="14"}
Typical Applications
- Industrial electrical distribution boards.
- Motor and machinery protection systems.
- Control panels and switchgear assemblies.
- Commercial and industrial power networks.
- Cable protection and feeder circuits.
- Manufacturing and automation installations.
Technical Specifications
| Series | SACE Tmax T4L |
|---|---|
| ABB order code | 1SDA055075R1 |
| Product type | Moulded case circuit breaker (MCCB) |
| Rated uninterrupted current (Iu) | 250 A |
| Rated current (In) | 25 A |
| Release type | MA magnetic release |
| Magnetic trip range | I3 =150–350 A |
| Number of poles | 3P |
| Connection type | Fixed front terminals |
| Rated insulation voltage (Ui) | 1000 V |
| Rated impulse withstand voltage (Uimp) | 8 kV |
| Rated operational voltage | 690 V AC / 750 V DC |
| Ultimate short-circuit breaking capacity (Icu) | up to 200 kA depending on voltage conditions |
| Service short-circuit breaking capacity (Ics) | up to 200 kA depending on voltage conditions |
| Protection level | L |
| Standards | IEC |
| Dimensions (H × W × D) | approx. 205 × 105 × 103.5 mm |
| Weight | approx. 2.35 kg |
Frequently Asked Questions
What is the ABB T4L250RM25 MAG-ONL used for?
This ABB Tmax T4L moulded case circuit breaker is used for protecting industrial electrical distribution systems and equipment against short-circuit faults.
What type of release does this circuit breaker have?
The T4L250RM25 uses an MA magnetic release designed for instantaneous short-circuit protection. :chatgpt-content-reference{index="15"}
How many poles does the ABB T4L250RM25 have?
The circuit breaker is a three-pole (3P) fixed unit with front terminals. :chatgpt-content-reference{index="16"}
What is the rated current of this ABB MCCB?
The T4L250RM25 has a rated uninterrupted current of 250 A. :chatgpt-content-reference{index="17"}
Where is this circuit breaker typically installed?
The breaker is typically installed in industrial switchboards, control panels and low-voltage power distribution systems.
Trusted by Industrial Power Engineers Worldwide
ABB Tmax T moulded case circuit breakers are widely used in industrial and commercial electrical systems to provide dependable protection, high breaking performance and long-term operational reliability.
