The Hager HMW401JR is a compact circuit breaker designed according to DIN EN 60947-2 to protect electrical systems and networks from overload and short circuits. With a rated current of 400A and a short-circuit strength of 50kA, this breaker provides a reliable solution for demanding applications. The electronic tripping unit allows for precise adjustment of the tripping curves via a rotary switch, enabling customization to specific requirements. The various tripping settings for overload current, short-time delayed short-circuit current, and instantaneous short-circuit protection offer high flexibility. Additionally, an LED display provides information about the operating status and potential faults, facilitating maintenance and monitoring. The HMW401JR is thus a safe and efficient choice for the protection of electrical systems.

• Adjustable tripping curves for overload and short-circuit current
• Activatable I²t function for adjusting the tripping curve
• LED indicators for operational readiness, overcurrent, and overheating
• Integrated locking mechanism for switching states
• Robust design for use in demanding environments.