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1sda054477r1 t5n 400 tma 320-3200 4 pole abb mccb

MPN: 1SDA054477R1

Alt. SKU: T5N 400 TMA 320-3200 4p F F InN=100%In

Special Price £1,853.04 £1,544.20 Regular Price £2,850.83

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Why Choose the Moulded Case Circuit Breaker [1SDA054477R1]

The TMAX T5N 400 fixed four-pole circuit breaker features front terminals and a thermomagnetic release (TMA R 320) with adjustable long-time settings from 1600 to 3200 A. It includes a fully rated neutral pole, ensuring reliable protection and compatibility in three-phase electrical distribution systems. Designed for robust performance, this breaker is suitable for industrial and commercial applications requiring precise overload and short-circuit protection.

Technical Specification

  • Function: Four-pole moulded case circuit breaker with thermomagnetic release (TMA).
  • Rated Current (Iₙ): 320 A.
  • Rated Operational Voltage: 690 V AC / 750 V DC.
  • Contact Configuration: Fixed front terminals.
  • Rated Insulation Voltage (Uᵢ): 1000 V.
  • Rated Impulse Withstand Voltage (Uᵢₘₚ): 8 kV.
  • Short-Circuit Breaking Capacity (I????????): Up to 70 kA (220-230 V AC), 20 kA at 690 V AC.
  • Mechanical Durability: 20,000 cycles at 120 cycles per hour.
  • Electrical Durability: 7,000 cycles at 60 cycles per hour.
  • Test Voltage at Industrial Frequency: 3,500 V for 1 minute.

Trusted By Customers Worldwide

"Specified by UK panel builders for dependable control." Controls Engineer, UK

Frequently Asked Questions

What is the rated current of the C.BREAKER TMAX T5N?
The rated current (Iₙ) of the C.BREAKER TMAX T5N is 320 A.
What is the maximum short-circuit breaking capacity?
The short-circuit breaking capacity is up to 70 kA at 220-230 V AC and 20 kA at 690 V AC.
What type of terminals does this circuit breaker have?
The circuit breaker features fixed front terminals.
What is the rated operational voltage for this product?
The rated operational voltage is 690 V AC / 750 V DC.
How many mechanical cycles can this breaker endure?
The mechanical durability is rated for 20,000 cycles at 120 cycles per hour.
What is the electrical durability of the C.BREAKER TMAX T5N?
The electrical durability is rated for 7,000 cycles at 60 cycles per hour.
What are the insulation and impulse withstand voltage ratings?
The rated insulation voltage is 1000 V and the rated impulse withstand voltage is 8 kV.
More Information
Manufacturer Part Number 1SDA054477R1
Barcode 8015644555146
Manufacturer ABB
Number of Poles 4 Pole
Amperage 320A
Alternative Product SKU T5N 400 TMA 320-3200 4p F F InN=100%In
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