Fire-rated circuit breaker CX2004-SE-R-3P-630A-B-SE-KS1 with tripping device UU PWP and signaling device US PWP

Fire emergency power switch – safety and reliability of the installation

This fire emergency power switch CX2004-SE-R-3P-630A-B-SE-KS1 is a key element of the fire protection system in buildings. It is designed to quickly disconnect the power supply in the event of a hazard, minimizing the risk of fire spreading and protecting people and property. Equipped with a triggering device UU PWP and a signaling device US PWP, it is a complete solution that meets stringent safety standards.

Construction and operating principle

This switch represents a simple but effective design. Its operation is based on a disconnector placed in a dedicated housing with an overcurrent release. Auxiliary contacts are used to signal the device status, both on the triggering 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 – which is important for the continuity of the system. The 230VAC release used ensures compatibility with commonly used control systems.

It is worth noting that the triggering and signaling devices operate at 230VAC, which must be taken into account when designing and installing the system. The whole creates a coherent system, where pressing any triggering device causes an immediate power disconnection.

Advantages and application

• Fast reaction: 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 operation even with momentary voltage drops.
• Completeness: The set includes a triggering device (UU PWP) and a signaling device (US PWP), which simplifies installation and configuration.
• Status signaling: Auxiliary contacts allow monitoring of the switch status and integration with alarm systems.
• Compliance with standards: The product meets the requirements specified in the Regulation of the Minister of Infrastructure and Construction regarding fire emergency power switches.
• Versatility: It can be used in various types of buildings – commercial, industrial or public utility.

The switch finds application everywhere where effective disconnection of the power supply is required in the event of a fire, e.g. in server rooms, warehouses of flammable materials, commercial facilities or offices. This is particularly important in places with a high concentration of people or exposed to a high risk of fire.

Installation and operation

Installation should be carried out by a qualified electrician in accordance with applicable regulations and standards. Special attention should be paid to the correct connection of the control wires and ensuring adequate protection against overcurrent in the control circuit. The device is intended for operation indoors with an environmental class of 1, at a temperature of -5°C to +40°C and with an enclosure protection class of IP30. Regular inspections and functional tests will help maintain high system efficiency and ensure its reliable operation for a long time.