Solid-State Relays Single-Phase 22.5 mm

SIRIUS 3RF21 Solid-State Relays, Single-Phase, 22.5 mm

Siemens - 3RF21

Solid-state relays are suitable for installation on existing cooling surfaces. Depending on the characteristics of the cooling surfaces, the working capacity of the relay extends up to 88 A resistive load. Requiring only two screws, assembly is quick and easy. The special technology of the power semiconductor ensures good thermal contact with the heat sink.

Advantages at a glance

  • Space-saving assembly thanks to slim design

  • Range of connection technology available (screw terminal, spring loaded terminal, ring-cable lug connection)

  • Simple plug-in connection of control cable

  • Fuseless, short-circuit-proof assembly option available

  • Safe from finger-touch without accessories