PLC PCB Relays

PLC and PCB relays are a product group made up of narrow-housing interface relays placed between a PLC output and the field load, and miniature relays that plug into a printed circuit board or a socket. They are used to isolate the PLC output from the load circuit, switch currents larger than the output can carry, and drive loads on electronic boards. The category includes Finder 40 series miniature PCB relays, Molwex PLC relays and relay and socket sets with push-in connection, and Isıso PLC relays; 1 CO and 2 CO contacts, contact currents such as 6 A, 8 A, 10 A and 16 A, coil voltages such as 12 V DC, 24 V DC, 24 V AC and 230 V AC, and a PLC relay with a semiconductor (SSR) output are listed. Select the coil voltage according to the PLC output voltage, the number of contacts and the current according to the load, the mounting style (board or socket) according to the application, and the output type (contact or semiconductor) according to the switching frequency. These relays are for control and small power loads; they are not a substitute for a contactor that switches power circuits such as a motor circuit.

Products

How to choose PLC PCB Relays

PLC and PCB relays are a product group made up of narrow-housing interface relays placed between a PLC output and the field load, and miniature relays that plug into a printed circuit board or a socket. They are used to isolate the PLC output from the load circuit, switch currents larger than the output can carry, and drive loads on electronic boards.

  • Separate sensing, motion control, logic processing and operator interface requirements.
  • Select signal type, supply voltage, communication protocol and I/O count for the machine network.
  • Verify housing size, sensing distance and PNP/NPN output polarity against the PLC input card.

Frequently asked questions

What is PLC PCB Relays and where is it used?

PLC and PCB relays are a product group made up of narrow-housing interface relays placed between a PLC output and the field load, and miniature relays that plug into a printed circuit board or a socket. They are used to isolate the PLC output from the load circuit, switch currents larger than the output can carry, and drive loads on electronic boards.

What should I compare when choosing PLC PCB Relays?

Select the coil voltage according to the PLC output voltage, the number of contacts and the current according to the load, the mounting style (board or socket) according to the application, and the output type (contact or semiconductor) according to the switching frequency.

Where can I find technical details for PLC PCB Relays products?

These relays are for control and small power loads; they are not a substitute for a contactor that switches power circuits such as a motor circuit.

PLC PCB Relays Selection Guide: Technical Criteria and Engineering Practice