Leading worldwide electrical connectivity supplier Weidmuller has released its new family of wear-free Power Solid State Relays (PSSR) designed for high reliability and longevity.
With no mechanical contacts that can be worn away by arcs and sparks, the electronic PSSRs deliver an unrestricted service life. The PSSR devices are also highly shock- and vibration-resistant, offering noiseless operation with no disturbances to deliver exceptional performance.
The single-phase power solid state relays offer fast response times, and are far quicker than mechanical switches. Featuring a large switching capacity from 24 to 510VAC, the PSSR can also monitor high AC loads.
The optional, plug-on monitoring module warns users when current drops by 16% or more. It detects short-circuits, line-breaks and defective loads to help deliver peace of mind.
The PSSR variant with a 35A load current features a high l2t load-current characteristic of 6,000 A2S and can be used for inexpensive line protection with standard circuit breakers. The 70A phase control unit with analogue input (4-20mA) allows users to set up heating controls or the power control of single-phase motors.
Weidmuller’s new PSSRs are robust and easy to use; offer a choice of eight devices customised to meet diverse requirements in process industries, railway applications and machine and plant manufacturing; are capable of handling demanding tasks, and can be used in trace heating, phase-fired controllers for motors, infrared heaters and permanent current monitoring.
The tall and lean Weidmuller PSSR modules are available with or without a heat sink and can be installed directly where needed at the site of application.