1sda062874r1  t7s 1250 pr231/p ls/i=1250a 4 pole abb mccb

1sda062874r1 t7s 1250 pr231/p ls/i=1250a 4 pole abb mccb

ABB 1SDA062874R1 Tmax T7S 1250A four-pole moulded case circuit breaker with PR231/P-LS/I electronic release for industrial low-voltage power distribution.

SKU: 1SDA062874R1Alt SKU: T7S 1250 PR231/P LS/I In=1250A 4p F FMPN: 1SDA062874R1
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Why Choose the ABB 1SDA062874R1 Tmax T7S Moulded Case Circuit Breaker?

The ABB 1SDA062874R1 is a high-performance Tmax T7S moulded case circuit breaker designed to provide dependable protection for demanding low-voltage power distribution systems. As part of the trusted ABB SACE Tmax T range, it combines excellent breaking performance with reliable electronic protection, making it suitable for industrial facilities, commercial buildings and critical electrical infrastructure.

This model features a 1250 A rated current, four-pole configuration and an advanced PR231/P-LS/I electronic release, providing long-time, short-time and instantaneous protection functions. Its fixed front-terminal arrangement enables straightforward installation into switchboards, while the lever operating mechanism ensures dependable manual operation.

With a rated operational voltage of 690 V AC, rated insulation voltage of 1000 V and short-circuit breaking capacity up to 85 kA at 220-230 V AC, the ABB 1SDA062874R1 is ideally suited for main distribution boards, motor control centres, generators and industrial power distribution systems.

Key Advantages

  • High-performance ABB Tmax T7S moulded case circuit breaker.
  • 1250 A rated current for demanding electrical distribution systems.
  • Four-pole fixed MCCB with front terminal connections.
  • PR231/P-LS/I electronic trip unit with adjustable protection.
  • Reliable long-time, short-time and instantaneous protection.
  • High short-circuit performance for industrial and commercial installations.

Key Features

  • ABB SACE Tmax T7S series.
  • 1250 A rated uninterrupted current.
  • Four-pole MCCB configuration.
  • PR231/P-LS/I solid-state electronic release.
  • Fixed version with front terminal connections.
  • Lever operating mechanism.
  • Rated operational voltage up to 690 V AC.
  • Suitable for demanding industrial low-voltage power distribution.

Reliable Circuit Protection for Industrial Power Distribution

The ABB Tmax T7S range protects electrical installations against overloads and short circuits while maintaining excellent operational reliability. Advanced electronic trip technology enables accurate protection settings to suit demanding industrial applications.

The integrated PR231/P-LS/I electronic release provides dependable long-time, short-time and instantaneous protection, making the ABB 1SDA062874R1 an excellent choice for critical low-voltage power distribution systems.

Typical Applications

  • Main low-voltage distribution boards.
  • Industrial switchboards.
  • Motor control centres.
  • Commercial electrical distribution.
  • Generator and transformer protection.
  • Manufacturing plants and infrastructure projects.

Technical Specifications

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Current 1250 A
Phase Three Phase
Poles 4-pole
Device Type MCCB
Breaking Capacity 85 kA
Trip Unit Electronic
Manufacturer ABB
Series SACE Tmax T
Model T7S 1250 PR231/P LS/I In=1250A 4p F F
Product ID 1SDA062874R1
EAN 8015644654238
Product type Moulded case circuit breaker
Rated current 1250 A
Rated uninterrupted current 1250 A
Number of poles 4P
Release PR231/P-LS/I
Release type Electronic
Rated operational voltage 690 V AC
Rated insulation voltage 1000 V
Rated impulse withstand voltage 8 kV
Rated ultimate short-circuit breaking capacity 85 kA at 220-230 V AC, 50 kA at 380-440 V AC, 40 kA at 500 V AC, 30 kA at 690 V AC
Rated service short-circuit breaking capacity 85 kA at 220-230 V AC, 50 kA at 380-440 V AC, 40 kA at 500 V AC, 30 kA at 690 V AC
Rated short-time withstand current 20 kA for 1 s
Mechanical durability 10000 cycles
Electrical durability 2000 cycles
Power loss 47 W per pole
Terminal connection Fixed front terminals
Operating mechanism Lever
Standards IEC 60947-2
Dimensions (H × W × D) 268 × 280 × 154 mm
Weight 17.67 kg

Frequently Asked Questions

What is the ABB 1SDA062874R1 used for?

The ABB 1SDA062874R1 protects low-voltage electrical systems against overloads and short circuits in industrial and commercial power distribution applications.

What current rating does this circuit breaker have?

This moulded case circuit breaker has a rated current of 1250 A.

Which trip unit is fitted?

It is fitted with the PR231/P-LS/I electronic release, providing long-time, short-time and instantaneous protection.

How many poles does this MCCB have?

The ABB 1SDA062874R1 is supplied as a four-pole moulded case circuit breaker.

Where is this breaker commonly installed?

It is commonly installed in industrial switchboards, motor control centres and low-voltage electrical distribution systems.

Trusted by Electrical Engineers Worldwide

ABB Tmax moulded case circuit breakers are trusted worldwide for delivering reliable protection, high performance and long service life in demanding industrial and commercial electrical installations.