Industrial 21-A161KD1 4A 600 V Circuit Breaker

Industrial 21-A161KD1 4A 600 V Circuit Breaker is engineered to deliver reliable overcurrent protection in demanding industrial environments. With a precise 4 ampere current rating and a 600-volt maximum voltage threshold, this breaker is designed to safely interrupt fault currents and shield downstream equipment from damage.

Built for control panels, machine enclosures, and distributed industrial systems, the 21-A161KD1 provides targeted protection for low- to moderate-current circuits. Its exact part number ensures easy traceability in maintenance inventories, simplifying replacements and reordering in busy plant environments.

Specifications at a glance

• Current rating: 4 A
• Voltage rating: 600 V
• Part Number: 21-A161KD1
• Application: industrial overcurrent protection for control panels and related equipment

Why this 21-A161KD1 matters for your operation

• Precise protection for low-current circuits in automation, instrumentation, and control networks
• Clear, traceable part number simplifies maintenance, stocking, and field replacements
• Designed to perform reliably in industrial settings where consistent trip characteristics are essential

Usage considerations and practical tips

When integrating the 21-A161KD1, ensure the system voltage does not exceed 600 V and that the actual operating current remains at or below 4 A to prevent nuisance trips. Install in a compatible enclosure or panel that accommodates standard industrial breakers, and follow applicable electrical codes for wiring, torque, and safety labeling. For maintenance planning, pair this breaker with circuits that require dependable, low-current protection to minimize downtime and protect valuable machinery and sensors.