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1sda054122r1 t4n 320 pr221ds-i in=320 4 pole abb mccb

MPN: 1SDA054122R1

Alt. SKU: T4N320R320

Special Price £1,713.00 £1,427.50 Regular Price £2,635.38

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Why Choose the Moulded Case Circuit Breaker [1SDA054122R1]

The TMAX T4N 320 four-pole fixed circuit breaker features front-mounted terminals and a solid-state release, providing reliable protection for AC installations. Designed for robust performance, this model ensures precise tripping characteristics and compatibility with a range of electrical systems. Its fixed configuration and high breaking capacity make it suitable for industrial and commercial applications requiring dependable overload and short-circuit protection.

Technical Specification

  • Function: Moulded Case Circuit Breaker with solid-state release (PR221DS-I).
  • Poles: 4-pole fixed.
  • Rated Current (Iₙ): 320 A.
  • Rated Operational Voltage: 690 V AC.
  • Rated Insulation Voltage (Uᵢ): 1000 V.
  • Impulse Withstand Voltage (Uᵢₘₚ): 8 kV.
  • Short-Circuit Breaking Capacity (Iₛ and I꜀ᵤ): Up to 70 kA at 220-230 V AC, decreasing to 20 kA at 690 V.
  • Terminal Type: Fixed front terminals.
  • Mechanical Durability: 20,000 cycles at 240 cycles/hour.
  • Electrical Durability: 6,000 cycles at 120 cycles/hour.

Trusted By Customers Worldwide

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

Frequently Asked Questions

What is the function of the C.BREAKER TMAX T4N 320?
It is a moulded case circuit breaker with a solid-state release (PR221DS-I).
What is the rated current of this circuit breaker?
The rated current (Iₙ) is 320 A.
What is the maximum operational voltage for the TMAX T4N 320?
The rated operational voltage is 690 V AC.
What is the short-circuit breaking capacity?
It can handle up to 70 kA at 220-230 V AC, decreasing to 20 kA at 690 V.
How is the circuit breaker mounted?
It features fixed front terminals for mounting.
What is the mechanical durability of the TMAX T4N 320?
The mechanical durability is rated for 20,000 cycles at 240 cycles/hour.
What standards and approvals does this product conform to?
See the manufacturer's data sheet for standards and approvals.
More Information
Manufacturer Part Number 1SDA054122R1
Barcode 8015644552213
Manufacturer ABB
Number of Poles 3 Pole
Amperage 320A
Alternative Product SKU T4N320R320
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