Fire disconnect switch CX2004-SE-R-3P-630A-B-P-KS2.W with initiating device UU PWP and signaling device US PWP

Fire disconnect switch – safety and reliability of the installation

This fire disconnect switch CX2004-SE-R-3P-630A-B-P-KS2.W, complete with initiating device UU PWP and signaling device US PWP, is a key element of the fire protection system in buildings. It is designed to quickly and effectively disconnect the power supply in the event of a fire hazard, minimizing the risk of fire spreading and potential damage. This is a basic solution, without advanced control over the control installation between the initiating and executing device.

Construction and principle of operation

The switch uses a disconnector placed in a dedicated housing, equipped with an overcurrent trip. Auxiliary contacts are used to signal the device status on the signaling and initiating device. The power supply necessary for the operation of the switch is supplied via a phase relay, which ensures its operation even after a voltage drop on one or two phases. A 230VAC trip is used here. A voltage of 230V supplied to the initiating device means that the contact of the initiating device and the signaling lamps operate at this voltage.

It is worth noting the simplicity of the construction – pressing any initiating device causes the executing device to switch off and cut off the power supply to the building. The signaling device, in the form of an LED lamp, indicates the power disconnection. The system can consist of many initiating devices, which increases the flexibility of the installation.

Advantages and application

• Fast response: The switch provides a quick disconnection of the power supply in the event of a fire hazard.
• Reliability: The use of a phase relay guarantees the operation of the switch even with momentary voltage drops.
• Simple installation: The construction based on proven solutions facilitates installation and integration with the existing electrical infrastructure.
• Status indication: Built-in signaling devices inform about the status of the switch, which facilitates control and diagnostics of the system.
• Compliance with standards: The product meets the requirements specified in the Regulation of the Minister of Infrastructure and Construction regarding fire disconnect switches (PWP).
• Versatility: Compatibility with various initiating devices available on the market (with appropriate certificates).

The switch is used in public buildings, industrial facilities and anywhere where effective fire protection of electrical installations is required. This is particularly important in facilities with a high concentration of people or flammable materials.

Additional information

The device operates in environmental class 1 (designed for indoor use) and has an IP30 enclosure protection rating. The operating temperature range is from -5°C to +40°C. It is important to adapt the contacts of the initiating device and signaling lamps to the voltage of 230VAC when using 230V trips – this is crucial for the correct operation of the system.