1sda054343r1  t5s 400 pr221ds-i in=400 4 pole abb mccb

1sda054343r1 t5s 400 pr221ds-i in=400 4 pole abb mccb

ABB 1SDA054343R1 Tmax T5S 400 moulded case circuit breaker with PR221DS-I electronic trip unit, 400 A rated current, four-pole fixed design and front terminals for industrial power distribution.

SKU: 1SDA054343R1Alt SKU: T5S 400 PR221DS-I In=400 4p F FMPN: 1SDA054343R1
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Why Choose the ABB 1SDA054343R1 Tmax T5S 400 Moulded Case Circuit Breaker?

The ABB 1SDA054343R1 is a high-performance ABB SACE Tmax T5S moulded case circuit breaker (MCCB) designed for reliable protection in industrial and commercial low-voltage power distribution systems. Built as a fixed four-pole circuit breaker with front terminals, it combines robust switching performance with precise electronic protection for demanding electrical installations.

As part of the proven ABB Tmax T series, this MCCB is engineered to protect electrical circuits against overload and short-circuit conditions while supporting safe, efficient and continuous operation. The integrated PR221DS-I electronic trip unit provides solid-state protection for AC applications, helping safeguard cables, machinery and downstream electrical equipment.

With a 400 A rated current, 690 V AC rated operational voltage and four-pole fixed construction, the ABB 1SDA054343R1 is ideal for switchboards, feeder circuits, motor control centres and OEM electrical assemblies requiring reliable circuit protection and high breaking performance.

Key Advantages

  • ABB Tmax T5S moulded case circuit breaker for industrial power protection.
  • 400 A rated current suitable for heavy-duty feeder and distribution circuits.
  • Four-pole fixed MCCB with front terminal connections.
  • PR221DS-I electronic release for accurate AC circuit protection.
  • High short-circuit breaking capacity for demanding installations.
  • Compact Tmax T5 frame design for industrial switchboards and control panels.

Key Features

  • ABB SACE Tmax T5S series.
  • Product code: 1SDA054343R1.
  • 400 A rated current.
  • 690 V AC rated operational voltage.
  • 4-pole fixed moulded case circuit breaker.
  • PR221DS-I solid-state electronic trip unit.
  • Front terminal configuration for panel mounting.
  • Designed for IEC low-voltage circuit protection applications.

Reliable Circuit Protection for Industrial Installations

The ABB Tmax T5S range is engineered to provide dependable protection for low-voltage distribution systems where service continuity, electrical safety and reliable fault interruption are essential. The PR221DS-I electronic release supports accurate trip performance, helping protect cables, equipment and downstream circuits from damaging fault conditions.

The fixed four-pole construction, front terminal layout and compact MCCB format make the ABB 1SDA054343R1 suitable for panel builders, electrical contractors, OEMs and maintenance teams working with demanding industrial power distribution systems.

Typical Applications

  • Industrial switchboards and distribution panels.
  • Main incoming and feeder circuit protection.
  • Motor control centres and machinery panels.
  • Commercial building electrical distribution.
  • Manufacturing and process automation facilities.
  • OEM electrical assemblies and control systems.

Technical Specifications

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Current 400 A
Phase Three Phase
Poles 4-pole
Device Type MCCB
Breaking Capacity 85 kA
Trip Unit Electronic
Manufacturer ABB
Series SACE Tmax T
Model T5S 400 PR221DS-I In=400 4p F F
Product ID 1SDA054343R1
Product type Moulded Case Circuit Breaker (MCCB)
Frame size T5S 400
Rated current (In) 400 A
Rated uninterrupted current (Iu) 400 A
Rated operational voltage 690 V AC
Rated insulation voltage (Ui) 1000 V
Rated impulse withstand voltage (Uimp) 8 kV
Number of poles 4
Trip unit PR221DS-I electronic release
Release type Solid-state release in AC
Mounting type Fixed
Terminal connection Front terminals
Short-circuit performance level S
Rated ultimate breaking capacity up to 85 kA at 220/230 V AC
Rated service breaking capacity up to 85 kA at 220/230 V AC
Electrical durability 7000 cycles
Mechanical durability 20000 cycles
Dimensions (H × W × D) approx. 205 × 186 × 103.5 mm
Weight approx. 6.2 kg

Frequently Asked Questions

What is the ABB 1SDA054343R1 used for?

The ABB 1SDA054343R1 is used to protect industrial and commercial low-voltage electrical circuits against overloads and short circuits.

What is the rated current of this MCCB?

This ABB Tmax T5S circuit breaker has a rated current of 400 A.

How many poles does the ABB 1SDA054343R1 have?

The ABB 1SDA054343R1 is a four-pole fixed moulded case circuit breaker.

Which trip unit is fitted?

This MCCB is fitted with the ABB PR221DS-I electronic trip unit, providing solid-state protection for AC applications.

Where is this breaker typically installed?

It is commonly installed in industrial switchboards, distribution panels, motor control centres and OEM machinery control systems.

Trusted by Electrical Professionals Worldwide

ABB SACE Tmax moulded case circuit breakers are trusted by panel builders, electrical engineers and industrial operators worldwide for reliable circuit protection, high breaking performance and long operational life.