Emergency Stop & Safety Gate Safety Relays

Emergency Stop & Gate Monitoring – Category 4

Safety Category 4
For Monitoring Emergency Stop Buttons and Gate Switches

Our most popular relay designed for dual safety channel (Cat 4) applications

Easy to install:
1. Connect 24V (A1) & 0V (A2)
2. Connect safety channel 1 between S11 & S12
3. Connect safety channel 2 between S21 & S22
4. Connect restart button (or jumper for automatic restart) between S33 & S34

The relay monitors the two safety circuits and will open the output contacts if either circuit is broken. The relay checks that both circuits open at the same time, ensuring the switches are operating correctly

Emergency Stop & Gate Monitoring – Category 2 & 3

Safety Category 2 and 3
For Monitoring Emergency Stop Buttons and Gate Switches

Smallest safety relay available

Easy to wire: simply connect the safety components (NC e-stop buttons and safety switches) in series with the power source for the relay. Add a momentary start button (or jumper for auto reset) to Y1 & Y2 terminals and your done!

  • For single channel (Cat 2) installation, connect the single contact safety components in series with the 24V+ (A1 Terminals).
  • For dual channel (Cat 3) installation, connect one contact of the dual contact safety components in series with the 24V+ (A1) and the other contact in series with the 0V (A2).

Safety Relay with Safe Time Delay

Category 4

Typically used with Locking Switches to Delay Access on Machines with Inertia. When emergency stop is activated, 2 NO contacts immediately open, 2 additional contacts open after a preset time delay. This redundant time delay can be set from 0.005 to 600 S, in 64 steps. Both timers must be set the same.

Safety Extension Modules

Add Extra Outputs To Your Safety Circuits

Used with a standard safety relay, these modules add extra output to your safety circuit

Safety Relay for Mats & Edges

Used with Normally Open Mats and Edges

The SAFE M is used with contact edges and mats, which are normally open until the contact is made (as opposed to safety switches and e-stop buttons which are normally closed).

These can be used for 2 wire or 4 wire edges and mats. 4 wire applications insure that the wires to and from the device are monitored

Light Curtain Relay

Used to monitor light curtains, single light beams or other devices with 2 PNP outputs

The two separate PNP outputs from the solid state device are run into S12 and S22