1sda054303r1  t4s 250 ma 100-1400 3 pole abb mccb

1sda054303r1 t4s 250 ma 100-1400 3 pole abb mccb

ABB 1SDA054303R1 SACE Tmax T4S 100 A three-pole moulded case circuit breaker with MA magnetic-only release, fixed front terminals and adjustable short-circuit protection.

SKU: 1SDA054303R1Alt SKU: T4S 250 MA 100-1400 3p F FMPN: 1SDA054303R1
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List Price £1,050.38 ex VAT
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Why Choose the ABB 1SDA054303R1 Tmax T4S Moulded Case Circuit Breaker?

The ABB 1SDA054303R1 is a dependable Tmax T4S moulded case circuit breaker (MCCB) engineered to provide reliable short-circuit protection for low voltage electrical distribution systems. As part of the proven ABB SACE Tmax T series, this three-pole circuit breaker is designed for industrial, commercial and OEM applications requiring high breaking performance and compact installation.

This breaker incorporates an MA magnetic-only release, delivering adjustable instantaneous short-circuit protection where overload protection is provided elsewhere within the electrical system. The fixed construction with front terminals enables quick installation into switchboards, distribution panels and machinery control cabinets.

With a 100 A rated current, 250 A frame size and adjustable magnetic setting from 600 to 1400 A, the ABB 1SDA054303R1 is ideal for protecting motor circuits, feeder circuits and industrial power distribution systems operating up to 690 V AC.

Key Advantages

  • Reliable ABB SACE Tmax T4S moulded case circuit breaker.
  • 100 A rated current with 250 A frame size.
  • Three-pole fixed design for compact panel installation.
  • MA magnetic-only release for adjustable short-circuit protection.
  • 50 kA breaking capacity at 400 V AC.
  • Front terminal connections simplify switchboard wiring.

Key Features

  • ABB SACE Tmax T series.
  • T4S 250 frame size.
  • 100 A rated current.
  • Three-pole MCCB configuration.
  • MA magnetic-only release.
  • Adjustable magnetic setting from 600 to 1400 A.
  • Fixed version with front terminals.
  • Suitable for industrial power distribution and motor protection systems.

Reliable Short-Circuit Protection for Industrial Systems

The ABB Tmax T4S range is designed to interrupt fault currents rapidly, helping to minimise equipment damage and maintain electrical system reliability. Magnetic-only circuit breakers are commonly selected where thermal overload protection is provided by separate overload relays or coordinated protection devices.

Its compact construction, adjustable magnetic release and high breaking performance make the ABB 1SDA054303R1 an excellent choice for panel builders, machine manufacturers and electrical contractors requiring dependable low voltage circuit protection.

Typical Applications

  • Industrial low voltage power distribution.
  • Motor circuit protection with separate overload relays.
  • Electrical switchboards and distribution panels.
  • Motor control centres.
  • OEM machinery and automation systems.
  • Feeder and short-circuit protection.

Technical Specifications

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Current 100 A
Phase Three Phase
Poles 3-pole
Device Type MCCB
Breaking Capacity 50 kA
Trip Unit Magnetic only
Manufacturer ABB
Series SACE Tmax T
Model T4S 250 MA 100-1400 3P F F
Product code 1SDA054303R1
Product type Moulded Case Circuit Breaker
Rated current (In) 100 A
Rated uninterrupted current (Iu) 250 A
Number of poles 3
Trip unit MA magnetic-only release
Magnetic adjustment range 600-1400 A
Rated operational voltage 690 V AC / 750 V DC
Rated insulation voltage (Ui) 1000 V
Rated impulse withstand voltage (Uimp) 8 kV
Rated ultimate breaking capacity (Icu) 50 kA at 400 V AC
Rated service breaking capacity (Ics) 50 kA at 400 V AC
Terminal type Fixed front terminals
Standards IEC 60947
Dimensions (H × W × D) approx. 205 × 105 × 103.5 mm
Weight approx. 2.35 kg

Frequently Asked Questions

What is the ABB 1SDA054303R1 used for?

This moulded case circuit breaker provides adjustable magnetic short-circuit protection for industrial and commercial low voltage electrical systems.

What is the rated current of this breaker?

The ABB 1SDA054303R1 has a 100 A rated current.

How many poles does this MCCB have?

This model is a three-pole moulded case circuit breaker.

What type of trip unit is fitted?

The breaker is equipped with an MA magnetic-only release, providing adjustable instantaneous short-circuit protection.

What is the magnetic adjustment range?

The adjustable magnetic setting ranges from 600 to 1400 A.

Trusted by Electrical Professionals Worldwide

ABB SACE Tmax moulded case circuit breakers are trusted by electrical engineers, panel builders and OEM manufacturers for dependable protection, excellent durability and proven performance in demanding industrial environments.