IDEM 24 V ac/dc Safety Relay Dual Channel With 3 Safety Contacts and 1 Auxilary Contact

  • RS Stock No. 123-2744
  • Mfr. Part No. 280002
  • Manufacturer IDEM
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): GB
Product Details

IDEM SCR-21/31/73-i VIPER Screw Safety Relay

Professional range of IDEM VIPER Safety Relays with screw terminals. The safety relays incorporate expansion units. The relays can be directly wired to increase the number of safety output contacts. Designed to meet the latest safety standard and offer enhanced LED diagnostics and simplified wiring. Typical applications include safety interlock switches and emergency e-stop devices door guard monitoring.

Single or Dual channel operation
Monitored Manual or Auto Start/Reset
LED Indication status
22.5 or 45 mm DIN Rail mounting


The VIPER SCR-31-i Safety Relay from IDEM offers you exclusive additional added diagnostics, designed and manufactured in the UK, meeting the latest safety standards. Part of this exclusive offering is the enhanced LED diagnostic features and simplified wiring that allows you ease of access to any wires you need to connect.

The SCR-31-i comes packed with internal logic, which uses force guided relays to achieve cross monitoring. This is especially useful in ensuring that a single fault doesn’t lead to the loss of the safety function whilst also being able to maintain the overall safety function of the device so that all faults are detected in time or before the next safety demand is required.

What are some of the features of the SCR-31-i?

• Outputs 3NC contacts and 1NO contact – Normally open / normally closed options are exceptionally useful for emergency stops when an accident has occurred.
• Features a feedback circuit allowing you to monitor any external contacts
• Visual indication LEDS are available, allowing easy and early diagnosis and status of the relay functions
• Safety levels up to PLe, SIL CL 3, Category 4
• Multifunction purpose manual or automatic starts
• Can be used on a single channel or dual channel operation
• You can further increase your number of outputs with the use of expansion units

Why are Safety Relays important?

Safety relays devices help implement safety functions across a broad range of scenarios. From emergency stop buttons, to magnetic switches, safety relays allow you full control and assurance of safety where ever the need for extra safety is required.
Safety relays are typically compact in their design whilst maintaining that high level of reliability required in important situations. Safety relays are tested thoroughly to a high standard, conforming to required standards used in many industries.

Attribute Value
Supply Voltage 24 V ac/dc
Number of Channels 2
Auxiliary Contacts 1
Function Emergency Stop, Safety Switch/Interlock
Safety Contacts 3
Range Viper
Reset Method Automatic, Manual
Terminal Type Screw
Standards Met CULus, EN 60204-1, EN 62061, EN ISO 12100, EN ISO 13849-1, EN ISO 13849-2, TUV, UL 508
Depth 99mm
Length 22.5mm
Width 114mm
4 : Next working day
35 Within 5 working day(s) (Global stock)
Price (ex. GST) Each
$ 189.70
(exc. GST)
$ 218.16
(inc. GST)
Per unit
1 +
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