Extended relay range with optimized handling

The PR coupling relay series comprises types of up to four PDTs and all common AC and DC coil voltages.

PR coupling relay series with upto four PDTs

PR coupling relay series with upto four PDTs

The solid industrial and octal relays of this series with two, three or four PDTs were technically and optically revised and now have a consistently uniform test button with determined function.


Clear display of the switching states


The test button is not just simply pressed, but can also be removed in two stages (1st level: Key function, 2nd level: Continuous-On). This virtually rules out accidental actuation as is the case when slightly touching relays with test buttons to be pressed directly .

The removed test button and the mechanical switch position indicator additionally integrated in the relay clearly show the manually switched state.

PR3 octal relay
PR3 octal relay



Other features of the industrial relay

  • Pluggable and thus easily replaceable in the event of servicing
  • Integrated switch setting display with LED
  • Integrated free-wheeling diode with DC types


Various coil variants

The product range has been extended with other coil variants. In addition to the existing 12 V, 24 V, 48 V and 110 V DC voltage levels, 60 V, 125 V and 220 V DC coils are now available, which are required for power generation and distribution.


Universal contact with hard gold plating

The most frequently used variants with four PDTs have a universal contact with hard gold plating.

These relays can thus be switched reliably to both coupling modules in the smallest load area, e.g. they can be used for PLC input and high loads.


Pre-assembled relays

Many common types of the PR series are available as a coupling relay which is completely assembled with base, input circuit, relay, retaining bracket and equipment marking label.

The full bandwidth allows all possible combinations thanks to the free combination of the PR modular system.


Further information and services related to this article



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D-32825 Blomberg
Phone: +49 (0) 5235-3 00
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