Fire-rated circuit breaker CX2004-SE-R-3P-250A-B-P-KS2.W with initiating device UU PWP and signaling device US PWP

Fire disconnect switch – comprehensive installation protection

This CX2004-SE-R-3P-250A-B-P-KS2.W fire disconnect switch is a reliable solution providing effective protection of the electrical installation in the event of a short circuit or overload. Equipped with a UU PWP initiating device and a US PWP signaling device, it constitutes a complete system that minimizes the risk of fire and limits potential losses. It is a basic solution that does not have advanced control over the control installation between the initiating and actuating device, but offers solid protection at key points.

Construction and principle of operation

The heart of the system 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 initiating device. The switch is powered via a phase transfer switch, which guarantees its operation even in the event of a voltage failure in one or two phases. The 230VAC release ensures a quick and effective response to a threat. The initiating and signaling devices operate at 230VAC, which simplifies installation and integration with existing infrastructure.

Key features and benefits

• Complete set: The set includes an actuating, initiating and signaling device – everything you need to create a functioning fire protection system.
• Independent of power supply: The phase transfer switch ensures the switch operates even with a temporary voltage failure in one or two phases, increasing the system's reliability.
• Status signaling: The signaling device informs about the status of the switch, enabling a quick response in the event of a failure or threat.
• Solid construction: The housing with IP54 protection class provides resistance to weather conditions and mechanical damage, allowing installation both indoors and outdoors.
• CNBOP certificate: The product has a CNBOP certificate No. 063-UWB-0426, confirming its compliance with applicable fire safety standards.
• Adaptation for outdoor work: Environmental class 2 and IP54 protection class make the device suitable for operation in harsh outdoor conditions.
• Wide operating temperature range: The operating temperature range from -25°C to +75°C allows the switch to be used in various climates and environmental conditions.

Technical parameters (for information)

The switch is designed to operate with a rated current of 250A and has a bottom cable entry with a maximum diameter of 5x150mm². It is made of high-quality materials ensuring durability and reliable operation for a long time. The US PWP signaling device type SO/PWP-230V and the UU/PW-230V PROMET KK-PPOŻ_PPWP initiating device also have environmental class 2 and IP54 protection class, which guarantees their resistance to external factors.