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Weidmüller has introduced a range of single-phase power solid-state relay (PSSR) modules designed specifically to satisfy the requirements of the process industry, railway applications and machine and plant manufacture.

The PSSR switches are simply snapped onto the mounting rail and connected. Adjacent assemblies are left undisturbed as there are no electromagnetic emissions or switch sparks during the switching process. The solid-state relays are used to switch high AC loads with thyristors or TRIACs to create no-voltage switches (solid-state type). They are available with pre-installed heatsinks, with control voltage and output current combinations of 24VDC/25A, 24VDC/35A and 230VAC/25A.

The PSSR portfolio includes a control unit that is simply plugged into the PSSR. It is able to control the current on up to five parallel consuming loads in parallel connection, which are programmed via the teach key that is found on the module itself or on an external teach input. The control unit features a variety of diagnostic functions, such as detecting short circuits, disconnections and faulty loads.

The range also includes the PSSR ‘hockey pack’ — single-phase modules without heatsinks. These feature a cooling surface for a no-voltage switch. With 24VDC control voltage, the modules are available with 50A or 75A output current and a switch voltage of up to 600VAC. The hockey pack is particularly useful for trace heating in the process industry.

Key benefits

  • Highly reliable switching
  • Long lifecycle
  • Compact design
  • Low drive power
  • Short response times
  • Silent loading without contact bounce
  • Shock and vibration resistance

Weidmuller

Weidmüller is an independent, family owned company. With more than 60 years of experience, we support our customers and partners around the world with products, solutions and services in the industrial environment of power, signal and data.

Weidmüller is an independent, family owned company. With more than 60 years of experience, we support our customers and partners around the world with products, solutions and services in the industrial environment of power, signal and data.

Our focus is on creating value for individual customers and creating powerful connections for industrial applications in the areas of machinery, process, energy, transportation, electronics and device manufacturing.

Our products are everywhere: in the device, the cabinet and the field including power supplies, surge protection, Industrial Ethernet, analogue signal conditioning, relays and optos, modular terminal blocks, field wiring, PCB terminals and connectors, electronics housings, Atex housings, identification material printers and software and tools for cutting, stripping and crimping.

We are continuously developing innovative, sustainable and useful solutions for our customers’ individual needs. Together, we set standards in Industrial Connectivity.

Weidmüller — electrical connectivity, transmission and conditioning of power, signals and data in industrial environments — let’s connect!

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