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1sda054121r1 t4n 320 pr221ds-ls/i in=320 4 pole abb mccb

MPN: 1SDA054121R1

Alt. SKU: T4N320

Special Price £1,712.96 £1,427.47 Regular Price £2,635.32

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Why Choose the Moulded Case Circuit Breaker [1SDA054121R1]

The C.BREAKER TMAX T4N 320 is a fixed four-pole circuit breaker featuring front terminals for straightforward installation and maintenance. It incorporates a solid-state release mechanism, providing precise and reliable protection in AC applications. Model PR221DS-LS/I R 320 is designed to ensure consistent performance and compatibility within industrial and commercial electrical systems.

Technical Specification

  • Function: Moulded Case Circuit Breaker, fixed four-pole (4P) with solid-state release.
  • Rated Operational Voltage: 690 V AC.
  • Rated Current (Iₙ): 320 A.
  • Rated Impulse Withstand Voltage (Uₘₚ): 8 kV.
  • Rated Insulation Voltage (Uᵢ): 1000 V.
  • Short-Circuit Breaking Capacity (Ics): Up to 70 kA at 220-230 V AC, decreasing to 20 kA at 690 V AC.
  • Terminal Type: Fixed front terminals.
  • Electrical Durability: 6000 cycles at 120 cycles per hour.
  • Mechanical Durability: 20,000 cycles at 240 cycles per hour.
  • Test Voltage Max (Utest): 3500 V.

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?
The C.BREAKER TMAX T4N 320 is a moulded case circuit breaker designed for overcurrent protection with a solid-state release mechanism.
What is the rated operational voltage of this circuit breaker?
The rated operational voltage is 690 V AC.
What is the rated current for the TMAX T4N 320?
The rated current (Iₙ) is 320 A.
What is the short-circuit breaking capacity of this breaker?
The short-circuit breaking capacity is up to 70 kA at 220-230 V AC, decreasing to 20 kA at 690 V AC.
How durable is the TMAX T4N 320 in terms of electrical and mechanical cycles?
It has an electrical durability of 6000 cycles at 120 cycles per hour and a mechanical durability of 20,000 cycles at 240 cycles per hour.
What type of terminals does the TMAX T4N 320 have?
The circuit breaker features fixed front terminals.
What standards and approvals does the TMAX T4N 320 comply with?
See the manufacturer's data sheet for standards and approvals.
More Information
Manufacturer Part Number 1SDA054121R1
Barcode 8015644552206
Manufacturer ABB
Number of Poles 3 Pole
Amperage 320A
Alternative Product SKU T4N320
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