1sda054437r1  t5n 400 tma 400-4000 3 pole abb mccb

1sda054437r1 t5n 400 tma 400-4000 3 pole abb mccb

ABB 1SDA054437R1 Tmax T5N 400 moulded case circuit breaker with TMA thermomagnetic release, 400 A rated current, three-pole configuration and fixed front terminals for industrial power distribution.

SKU: 1SDA054437R1Alt SKU: T5N 400 TMA 400-4000 3p F FMPN: 1SDA054437R1
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List Price £2,236.08 ex VAT
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Why Choose the ABB 1SDA054437R1 Tmax T5N 400 MCCB?

The ABB 1SDA054437R1 is a reliable Tmax T5N moulded case circuit breaker (MCCB) designed for industrial power distribution systems, electrical switchboards and OEM control panels. Featuring a 400 A rated current, 400 A frame size and three-pole configuration, this MCCB provides dependable low voltage circuit protection for demanding electrical installations.

As part of the proven ABB SACE Tmax T series, this circuit breaker combines robust construction, compact dimensions and dependable thermomagnetic protection. The integrated TMA thermomagnetic release provides overload and short circuit protection, helping safeguard cables, machinery and downstream electrical circuits.

With fixed front terminals, a rated operational voltage of up to 690 V AC and compliance with IEC 60947, the ABB 1SDA054437R1 is suitable for panel builders, electrical contractors and maintenance engineers requiring reliable MCCB protection in commercial and industrial environments.

Key Advantages

  • Reliable ABB Tmax T5N moulded case circuit breaker for industrial protection.
  • 400 A rated current within a 400 A MCCB frame.
  • Three-pole configuration for three-phase electrical installations.
  • TMA thermomagnetic trip unit for overload and short circuit protection.
  • Fixed front terminal design for switchboard and panel installation.
  • Designed to meet IEC 60947 low voltage circuit breaker standards.

Key Features

  • ABB SACE Tmax T5N series.
  • Product code: 1SDA054437R1.
  • Rated current: 400 A.
  • Rated uninterrupted current: 400 A.
  • Three-pole moulded case circuit breaker.
  • TMA thermomagnetic release.
  • Rated operational voltage: up to 690 V AC.
  • Compact fixed mounting design with front terminals.

Reliable Protection for Industrial Power Systems

The ABB Tmax T5N range is engineered to protect low voltage electrical installations from overload and short circuit conditions while supporting reliable power distribution. The TMA thermomagnetic release provides dependable protection characteristics for industrial distribution boards, switchgear assemblies and machinery panels.

The 1SDA054437R1 offers a strong combination of electrical performance, compact installation and durable ABB construction. Its three-pole design makes it suitable for three-phase distribution systems requiring robust circuit protection in demanding industrial and commercial environments.

Typical Applications

  • Industrial switchboards and distribution panels.
  • Motor control centres and machinery panels.
  • Commercial building electrical distribution.
  • Manufacturing and processing facilities.
  • OEM electrical control systems.
  • Low voltage power protection applications.

Technical Specifications

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Current 400 A
Phase Three Phase
Poles 3-pole
Device Type MCCB
Breaking Capacity 36 kA
Trip Unit Thermal-magnetic
Manufacturer ABB
Series SACE Tmax T
Model T5N 400 TMA 400-4000 3P F F
Product code 1SDA054437R1
EAN 8015644555412
Product type Moulded Case Circuit Breaker (MCCB)
Rated current (In) 400 A
Rated uninterrupted current (Iu) 400 A
Frame size 400 A
Number of poles 3
Trip unit TMA thermomagnetic release
Instantaneous setting 2000-4000 A
Release type Thermomagnetic
Rated operational voltage Up to 690 V AC / 750 V DC
Rated insulation voltage (Ui) 1000 V
Rated impulse withstand voltage (Uimp) 8 kV
Rated service breaking capacity (Ics) 36 kA at 400 V AC
Rated ultimate breaking capacity (Icu) 36 kA at 400 V AC
Short-time withstand current (Icw) 5 kA for 1 second
Short-circuit performance level N
Power loss 19.6 W per pole at rated operating conditions
Terminal type Fixed front terminals
Standards IEC 60947
Dimensions (H × W × D) approx. 205 × 140 × 103.5 mm
Weight approx. 4.5 kg

Frequently Asked Questions

What is the ABB 1SDA054437R1 used for?

It is used to protect low voltage three-phase electrical circuits, switchboards and industrial distribution systems against overload and short circuit conditions.

What is the rated current of this MCCB?

The ABB 1SDA054437R1 has a 400 A rated current and is built on a 400 A frame.

How many poles does this circuit breaker have?

This model has a three-pole (3P) configuration for three-phase electrical systems.

What trip unit is fitted to the ABB 1SDA054437R1?

It is fitted with a TMA thermomagnetic trip unit, providing overload and short circuit protection.

Where is this MCCB typically installed?

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

Trusted by Industry Worldwide

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