T4N 320 PR221DS-LS/I In=320 4p F F
Short Product Description ABB Tmax T4N 320 PR221DS-LS/I 4P fixed mount circuit breaker with solid-state release, suitable for 320A main circuit, 690V AC rated operational voltage, and 8kV rated impulse withstand voltage.
Product ModelT4N 320 PR221DS-LS/I In=320 4p F F
Material Number1SDA054121R1
Product ID75787
Stock on Request
Last updated: 8/29/2026Key Features
- 11. High Short-Circuit Breaking CapacityThe ABB Tmax T4N 320 PR221DS-LS/I boasts impressive short-circuit breaking capacities, including 70 kA at 220/230 V AC, 36 kA at 380/400/415 V AC, 30 kA at 440 V AC, 25 kA at 500 V AC, and 20 kA at 690 V AC.
- 22. Reliable and Efficient OperationDesigned for reliable and efficient operation, this circuit breaker ensures minimal power loss at rated operating conditions, with a power loss of 17.6 W per pole.
- 33. Solid-State Release MechanismEquipped with a solid-state release mechanism, the T4N 320 PR221DS-LS/I provides fast and reliable operation, ensuring quick response times during electrical faults.
- 44. Compliance with International StandardsThe product meets the stringent standards set by IEC 60947, ensuring it is compatible with a wide range of electrical systems and applications.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
Specifications may be subject to change without notice
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Value
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Environmental Information
9AKK10103A1057
Product Net Width
140 mm
Product Net Height
205 mm
Product Net Depth / Length
103.5 mm
Product Net Weight
4.5 kg
Product Main Type
SACE Tmax T