Fire-resistant circuit breaker CX2004-SE-R-3P-400A-B-P-KS2.W with tripping device UU PWP and signaling device US PWP

Fire emergency power switch – safety and reliability in one solution

This fire emergency power switch CX2004-SE-R-3P-400A-B-P-KS2.W, complete with initiating device UU PWP and signaling device US PWP, is a key element of fire protection systems. It provides effective power disconnection in the event of a hazard, minimizing the risk of fire spreading and protecting life and property. It is a simple but effective solution, especially where advanced control of the control installation is not required.

Construction and principle of operation

The switch is based on a disconnector placed in a dedicated housing, equipped with an overvoltage release. Auxiliary contacts are used to signal the status of the initiating and signaling devices. The switch power supply is protected by a phase relay, which ensures its operation even in the event of a voltage drop in one or two phases. The 230VAC release used guarantees reliable system operation. The initiating and signaling devices operate at 230VAC, which simplifies integration with existing electrical infrastructure.

It is worth noting the two construction variants: a version without conductor monitoring to the initiating device and a version with such monitoring – preferred in more extensive and complex industrial installations and public buildings. The version with conductor monitoring offers additional safety by immediately detecting damage to the control line and notifying the master system (e.g. SSP or BMS).

Application and benefits

The switch finds application everywhere where effective power disconnection is required in the event of a fire – in residential, commercial, industrial and public buildings. Thanks to its construction and certifications, it meets stringent fire safety standards.

• Fast response: Overvoltage release ensures immediate power disconnection in the event of a hazard.
• Reliability: The use of a phase relay guarantees the operation of the switch even with momentary voltage drops.
• Simple installation: Complete set with initiating and signaling device facilitates system mounting and configuration.
• Status signaling: The signaling device informs about the power disconnection, which is important for rescue services and building personnel.
• Availability of versions with conductor monitoring: Increased safety thanks to detection of control line damage (in the appropriate variant).
• Environmental class 2 and protection degree IP54: Possibility of mounting outdoors, resistance to weather conditions.
• Integration possibilities: Compatibility with building automation systems (SSP/BMS) via MKIN-PWP module (in advanced versions).

The CX2004-SE-R-3P-400A-B-P-KS2.W switch is a solid and proven solution for ensuring fire protection safety, meeting the requirements of applicable regulations and standards.