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Safety switching devices

48 products

Single-function safety relays for the most common safety circuits: emergency stop, safety gates and guard doors, light curtains, two-hand controls and safety mats.

They are quick to commission, show diagnostics directly on the device and use positively guided contacts. Housing widths start at 17.5 mm, with screw or push-in terminals. Filter by Cat. / PL, SIL, contacts and width to find the right module.

Showing 1–24 of 48 results

DOLD BD 5935 – Emergency stop module

DOLD BD 5935 – Emergency stop module

Cat./PL 4/eSIL 345 mm

Emergency stop module

  • Safe disconnection of electrical circuits
  • Line fault detection on ON pushbutton
  • Gold plated contacts to switch low loads (signal to PLC)
  • Optionally cross fault detection in emergency stop circuit
  • Easy exchange of devices by removable terminal strips
DOLD BD 5987 – Emergency stop module

DOLD BD 5987 – Emergency stop module

Cat./PL 4/eSIL 345 mm

Emergency stop module

  • Safe disconnection of electrical circuits
  • Line fault detection at On pushbutton
  • Gold-plated contacts to switch small loads (input for PLC)
  • Optionally cross fault detection in emergency stop circuit
DOLD BG 5933 – Two-hand safety relay

DOLD BG 5933 – Two-hand safety relay

Cat./PL 4/eSIL 322.5 mm

Two-hand safety relay

  • Compact, ready to connect 2-hand safety circuit
  • Cost reduction by replacing conventional contactor circuits
  • Feedback circuit Y1 – Y2 to monitor external contactors used for reinforcement of contacts
DOLD BH 5933 – Two-hand safety relay

DOLD BH 5933 – Two-hand safety relay

Cat./PL 4/eSIL 345 mm

Two-hand safety relay

  • Compact, ready to connect 2-hand safety circuit
  • Cost reduction by replacing conventional contactor circuits
  • Feedback circuit Y1 – Y2 to monitor external contactors used for reinforcement of contacts

SAFEMASTER safety relays for emergency stop, safety doors, light curtains and safety mats

Safety relays supervise individual safety functions on a machine: emergency stop, guard doors, two-hand controls, safety mats, light barriers and others. DOLD's classic monofunctional SAFEMASTER relays are quick to commission, show diagnostics right on the device, and use plug-in push-in terminals with positively driven contacts. Installation widths start at 17.5 mm, and several housing styles are available. When only a few safety functions need monitoring, this series is a straightforward fit.

The devices are certified to IEC/EN 61508 up to SIL 3, IEC/EN 62061 up to SIL CL 3 and EN ISO 13849-1 up to Cat. 4 / PL e, so they can be used worldwide. For low-demand mode operation, DOLD provides extra safety-related figures for individual devices. The portfolio extends from these single-function relays to multifunctional, modular safety systems with fieldbus connection. Some SAFEMASTER relays also cover safe standstill and speed monitoring, optionally sensorless. Tell us which safety functions your machine needs and we can suggest a relay.

  • Covers e-stop, safety doors, two-hand control, mats and light barriers
  • Certified up to SIL 3, SIL CL 3 and PL e / Cat. 4
  • Push-in plug-in terminals and positively driven contacts
  • Diagnostics directly on the device
  • Installation widths from 17.5 mm
  • Extra characteristic data available for low-demand mode