Power switch h3+ P630 LSI 3x400A 50kA HMW400JR

Power circuit breaker for protecting electrical installations.

The h3+ P630 LSI 3x400A 50kA circuit breaker is a reliable device designed to protect electrical circuits against overloads and short circuits. Designed for use in both residential and industrial applications, it ensures safety and continuity of power supply. Its robust construction and high short-circuit breaking capacity guarantee long-lasting and efficient operation.

Characteristics and application

This three-pole (3P) circuit breaker with a rated current of 400A is ideal for protecting circuits with high power demand. The use of LSI characteristics (curvilinear tripping) makes it particularly resistant to short-term current surges, which is important when connecting receivers with induction motors or other devices generating surge currents. This prevents the circuit breaker from tripping unnecessarily during normal operation of these devices. It can be used in electrical switchboards, control cabinets and industrial installations.

Construction and installation

The circuit breaker has screw connections for the main conductors, ensuring a secure and durable electrical connection. Installation is done by placing the device on a TH rail – although it should be remembered that this model is not designed for mounting on a DIN TH rail. The device's construction is fixed, which increases its stability and reliability. The tripping indicator allows for quick visual identification of the circuit breaker's status – whether it has operated and disconnected the circuit in the event of a failure. Additionally, the optional installation of a motor drive facilitates remote control of the circuit breaker. The rated impulse voltage is 8000V and the insulation voltage is 800V.

Key features and benefits

• High short-circuit breaking capacity: 50kA at 400V provides effective protection of the installation against the effects of short circuits.
• Overload release setting range: from 160A to 400A allows you to adjust the sensitivity of the circuit breaker to specific installation needs.
• LSI characteristic: provides optimal protection against overloads and short circuits while being resistant to short-term current surges.
• Robust construction: guarantees long-lasting and reliable operation in various environmental conditions (operating temperature from -25°C to 70°C).
• Protection class IP40: protects against access to hazardous live parts and the ingress of solid objects larger than 1mm – important in industrial environments.
• Expandability: optional accessories such as communication cables, overcurrent releases or auxiliary contacts allow you to adapt the functionality of the circuit breaker to specific application requirements.
• Compliance with standards: the product meets safety standards, confirming its high quality and reliability.