T4N 320 PR221DS-I In=320 3p F F + Acc

Name: T4N 320 PR221DS-I In=320 3p F F + Acc
Brand: ABB
SKU: T4N 320 PR221DS-I In=320 3p F F + Acc

The ABB T4N 320 PR221DS-I 3P FF circuit breaker is a high-performance, three-pole molded case circuit breaker designed for 690 V AC applications. It features a rated current of 320 A and ensures reliable operation in industrial settings.

Product ModelT4N 320 PR221DS-I In=320 3p F F + Acc

Material Number1SDX203955R1

Product ID73988

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. High Performance and ReliabilityThe ABB T4N 320 PR221DS-I 3P FF circuit breaker is engineered to provide consistent and reliable performance in demanding industrial environments. Its robust design ensures it can handle high currents and frequent operations without compromising on safety or efficiency.
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2. Designed for 690 V AC ApplicationsSpecifically designed for 690 V AC applications, this circuit breaker is ideal for a wide range of industrial settings, including power distribution systems and motor control circuits. Its compatibility with high voltage AC makes it a versatile solution for various electrical needs.
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3. Three-Pole ConfigurationWith a three-pole configuration, the T4N 320 PR221DS-I 3P FF provides balanced protection for three-phase systems. This configuration ensures that each phase is protected independently, enhancing overall system reliability and safety.
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4. Rated Current of 320 AThe circuit breaker has a rated current of 320 A, making it suitable for applications requiring high current handling. This rating ensures that the breaker can handle the maximum load without tripping unnecessarily, reducing downtime and improving operational efficiency.

Technical Specifications

Detailed engineering parameters based on manufacturer documentation

Specifications may be subject to change without notice

Parameter

Value

Parameter

Value

CN8

85362090

Country of Origin

Italy (IT)

Customs Tariff Number

85362090

EAN

8057558148953

Invoice Description

T4N 320 PR221DS-I In=320 3p F F + Acc

Minimum Order Quantity

1 piece

5. Front Terminal Connection TypeThe T4N 320 PR221DS-I 3P FF features front terminal connections, which are easy to access and use. This design simplifies maintenance and replacement tasks, reducing the time and effort required for upkeep. The fixed circuit-breaker design ensures secure connections, minimizing the risk of electrical accidents.

6. High Breaking CapacityThe circuit breaker boasts high breaking capacities, including 70 kA at 220/230 V AC and 36 kA at 380/400/415 V AC. This high breaking capacity ensures that the breaker can interrupt short circuits effectively, protecting the system from damage and ensuring continuous operation.

7. Compliance with IEC 60947 StandardsThe ABB T4N 320 PR221DS-I 3P FF circuit breaker complies with IEC 60947 standards, ensuring that it meets international safety and performance criteria. This compliance provides assurance that the product is safe to use and operates as intended, reducing the risk of electrical hazards.

8. Long Service LifeWith a mechanical durability of up to 20,000 cycles and an electrical durability of up to 6,000 cycles, the T4N 320 PR221DS-I 3P FF is designed to provide a long service life. This durability ensures that the circuit breaker remains reliable and efficient over an extended period, reducing the need for frequent replacements.

9. Easy Installation and MaintenanceThe circuit breaker is designed for easy installation and maintenance. Its compact size and front terminal connections make it simple to integrate into existing electrical systems. Additionally, its modular design allows for easy replacement of components, reducing downtime and improving overall system efficiency.

10. Certified for CE ComplianceThe ABB T4N 320 PR221DS-I 3P FF circuit breaker is certified for CE compliance, ensuring that it meets all necessary European safety standards. This certification provides assurance that the product is safe to use in various industrial settings across Europe, enhancing its marketability and acceptance.

11. Wide Range of Accessories AvailableABB offers a wide range of accessories for the T4N 320 PR221DS-I 3P FF circuit breaker, including front terminals, extended terminals, and multi-cable terminals. These accessories enhance the flexibility and customizability of the product, allowing users to tailor the solution to their specific needs.

12. Double Insulation for Enhanced SafetyThe circuit breaker features double insulation between the live power parts and the front parts, ensuring that the operator is protected from electrical hazards during normal operation. This double insulation provides an additional layer of safety, reducing the risk of electrical accidents and enhancing overall system reliability.

13. Integrated Dialogue Units for Enhanced PerformanceThe latest generation of Tmax circuit breakers, including the T4N 320 PR221DS-I 3P FF, features integrated dialogue units. These units enhance the performance of the circuit breaker by providing real-time feedback and monitoring capabilities, allowing users to optimize system operation and maintenance.

14. High Limitation of Specific Let-Through EnergyThe T4N 320 PR221DS-I 3P FF circuit breaker is designed with high limitation of specific let-through energy, ensuring that the energy released during short circuits is minimized. This feature reduces the risk of damage to the system and enhances overall safety.

15. Optimal Coordination with Other ApparatusThe high selectivity values of the T4N 320 PR221DS-I 3P FF circuit breaker allow for optimal coordination with other apparatus in the Tmax family. This coordination ensures that the system operates efficiently and safely, reducing the risk of electrical hazards and improving overall system performance.

Package Level 1 Units

1 piece

Product Main Type

SACE Tmax T

Product Name

Moulded Case Circuit Breaker

Selling Unit of Measure

piece

Short Description

T4N 320 PR221DS-I In=320 3p F F + Acc

WEEE B2C / B2B

Business To Business

WEEE Category

5. Small Equipment (No External Dimension More Than 50 cm)

Manufacturer ID

1SDX203955R1