Schmersal 24 V ac/dc Safety Relay Single or Dual Channel Compatible With Light Beam/Curtain, Safety Switch/Interlock

  • RS Stock No. 741-8666
  • Mfr. Part No. SRB324ST 24V (V.3)
  • Manufacturer Schmersal
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): DE
Product Details

PROTECT SRB324ST - Safety Relays

Introducing the PROTECT SRB324 range from Schmersal, producers of high quality, reliable safety relays that meet several industry safety standards. These general purpose safety relay modules are for the evaluation of switching signals. The PROTECT SRB324 range is universal and can be used with other brands of safety switchgear.

Suitable for signal processing of potential-free outputs, e.g. emergency stop command devices, position switches and solenoid interlocks
Suitable for signal processing of outputs connected to potentials (AOPDs), STOP 0, 2 safety contacts, STOP 1 (adjustable 1 → 30 s)
4 Signalling outputs
Optional: Short-circuit recognition, Manual reset with edge detection in fail-safe circuit, Automatic reset function



Features and benefits:

• A feedback circuit as standard with this product allows the unit to detect any welding of the contact point, which is particularly useful in keeping the relay running instead of shutting down upon contact.
• Snap on DIN rail mounting as standard with this product allowing easy additions & removals, allowing you the flexibility and portability you require.
• 240 of lightweight, durable plastic (glass fibre) reinforced thermoplastic. The structure is also ventilated meaning it dissipates quicker allowing the device to remain cool.
• Automatic or manual start button input allowing you further control over your device (optional monitored).
• The material of the contact is a standard AgSn0. It has a positive action and is also self-cleaning.


• Guard systems
• Emergency stop buttons
• Pull wire emergency stop switches
• Safety light curtains
• Safety sensors

Technical safety parameters

• EN 954-1 Category - Cat 4
• EN ISO 13849-1 Performance Level – Ple
• EN 62061 SIL Claim - SIL CL 3

Attribute Value
Supply Voltage 24 V ac/dc
Number of Channels 1, 2
Function Light Beam/Curtain, Safety Switch/Interlock
Terminal Type Screw
Depth 121mm
Width 45mm
Length 100mm
12 In Global stock for delivery within 4 - 6 working days
Price Each
MYR 2,693.35
Per unit
1 +
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