Fire-rated circuit breaker CX2004-SE-W-3P-250A-36kA-B-P-KS2.W with tripping device UU PWP and signaling device US PWP SE-W-3P-250A-36KA-B-P-KS2.W

Fire protection circuit breaker – safety and reliability of installation

This fire protection circuit breaker CX2004-SE-W-3P-250A-36kA-B-P-KS2.W is a comprehensive solution designed to protect electrical installations in buildings. Equipped with a triggering device UU PWP and a signaling device US PWP, it ensures effective power disconnection in the event of a fire hazard. The design based on a disconnector with an overcurrent release, combined with additional signaling elements, guarantees a rapid response and minimizes the risk of fire spreading.

Construction and operating principle

This circuit breaker represents a simple but effective design, without advanced control over the control installation between the triggering and actuating device. The key element is a disconnector placed in a dedicated housing, equipped with an overcurrent release. Auxiliary contacts are used to signal the device status on the signaling and triggering device. The use of a phase switch ensures reliable operation of the circuit breaker even in the event of a voltage failure in one or two phases – the release operates at 230VAC. The triggering and signaling devices also operate at 230VAC, which simplifies integration with existing systems.

Advantages for installers and end users

• Fast response: The overcurrent release ensures immediate power disconnection in the event of a fire hazard.
• Reliability: The use of a phase switch guarantees the operation of the circuit breaker even with power supply problems.
• Simple installation: The lack of advanced control simplifies installation and system configuration.
• Status signaling: The signaling device informs about the status of the circuit breaker, which facilitates monitoring and diagnosis of any problems.
• Completeness: The set includes a triggering device UU PWP and a signaling device US PWP, eliminating the need for additional purchases.
• Resistance to external conditions: The housing with IP54 protection class and operating temperature range from -25°C to +75°C enables installation of the device outdoors.
• Compliance with standards: The device meets the requirements for fire safety, ensuring the protection of life and property.

Additional information

This circuit breaker is available in a version without wire continuity control to the triggering device, making it an ideal solution for simple installations. The possibility of using 230VAC or 24V releases (enhanced version) allows you to adapt the device to the specific needs of a given project. Remember to adjust the voltage of the signaling lamps to the voltage of the release (230VAC or 24V). The actuator Q1 allows connection of wires with a cross-section of up to 5x150mm².