Coupling relay - PSR-PC20-1NO-1NC-24DC-SP - 2700578

The figure shows a version with a screw connection

Coupling relay for SIL 3 high- and low-demand applications, couples digital output signals to the periphery, 1 enabling current path, 1 confirmation current path, 1 digital signal output, safe state off applications, test pulse filter, TBUS connection, pluggable Push-in terminal block

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Your advantages

  • Up to SIL 3 according to IEC 61508
  • Forcibly guided contacts according to EN 50205
  • Easy proof test according to IEC 61508 thanks to integrated signal contact
  • Approved for Class I, Zone 2 applications
  • Low housing width of just 12.5 mm
  • Enabling current path protected via internal fuse as an option
  • Long service life thanks to filtering of controller test pulses
  • 1 enabling current path, 1 digital signal output, 1 diagnostic current path
  • Couples digital output signals from failsafe controllers to I/O devices (valves, etc.) for electrical isolation and power adaptation
  • Time saving push-in connection, tools not required
  • Potentials can be easily looped through – ideal for BUS applications
  • Intuitive use through colour coded actuation lever
  • Can be combined with the MSTB 2,5 range
  • Quick and convenient testing using integrated test option
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Key Commercial Data

Orderkey 2700578
Packing unit 1 pc
Catalog page Page 252 (C-6-2019)
GTIN 4046356916400
Weight per Piece (excluding packing) 182.100 g
Custom tariff number 85364900
Country of origin DE (Germany)

PHOENIX CONTACT (Pty) Ltd.

36 Lyn Road
P.O. Box 916
ZA-Ferndale 2160
+27/11/801-8200

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