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ACB

Siemens 3WN6671-0KV58-3KK3 Air Circuit Breaker (ACB)

Name: Siemens 3WN6671-0KV58-3KK3 Air Circuit Breaker (ACB)
Brand: Siemens
SKU: 1370
Availability: InStock

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USED

Specification Details
Brand: Siemens
Part Number: 3WN6671-0KV58-3KK3
Series: 3WN6
Identity Number: 0490321109000
Number of Poles: 3-Pole (3P)
Rated Frequency: 50 / 60 Hz
Utilization Category: Category B (Cat B)
Status: Used Excellent Working (As Per Photos)
Country of Origin: Made in Germany
Shipping: Fast & Safe Worldwide Shipping Available.

Brand	Siemens
Category	ACB

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The Siemens 3WN6671-0KV58-3KK3 is a high-performance, 3-pole Air Circuit Breaker (ACB) designed to deliver reliable protection and distribution in low-voltage electrical networks. Belonging to the trusted Siemens 3WN6 legacy lineup, this 2500 Amp ACB serves as an indispensable incoming or outgoing feeder breaker in main distribution boards and industrial motor control centers.

With a high impulse withstand voltage (\(U_{imp} = 8\text{ kV}\)) and an insulation voltage (\(U_{e}\)) up to 690 V, this circuit breaker handles heavy inductive loads with ease. It features an integrated spring-charging charging mechanism interface, visual status windows ("Bereit / Ready"), and precise mechanical trip systems to prevent extensive downstream equipment damage. Certified with standard CE markings, this unit guarantees high operational continuity and robust system safety.

Premium German Engineering: Genuine Siemens 3WN6 series air circuit breaker, manufactured strictly to DIN VDE 0660 and IEC / EN 60947-2 standards.
High Current Capacity: Rated operational current (\(I_{n}\)) of 2500 A at 50/60 Hz, ideal for heavy-duty industrial power distribution systems.
Robust Short-Circuit Protection: Engineered with a rated service short-circuit breaking capacity (\(I_{cs} = I_{cu}\)) up to 80 kA at 500V and 50 kA at 690V.
Excellent Short-Time Withstand: Rated short-time withstand current (\(I_{cw}\) / 1s) of 65 kA, ensuring maximum safety and stability under transient fault conditions.
Flexible Control Voltages: Equipped with auxiliary/control circuits configured for versatile 220–240 V AC / 220–250 V DC operation (F1, F2, F3, Y1, and motor mechanisms).