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Safety relays for light curtains offer capabilities such as release delay, muting, stepping, and protection for multiple curtains. Two-channel fixed and multi-function relays are available, as well as OSSD-capable models.
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OSSD / Light Curtain Safety Relays
Safety light curtains are used extensively for access control and intrusion detection. They utilize an array of photoelectric beams to sense intrusion into a protected area and are available for finger, hand, and body protection. OSSD/light curtain safety relays are designed specifically to handle light curtain circuits and will reliably remove power from dangerous equipment when needed.
For part listing and specifications, go to Shop Now
Dold BH5902 Series Multi-Function Light Curtain Controllers
Dold multi-function controllers can be operated in protection, muting or stepping modes.
- Connect up to 3 light curtains
- Broken wire detection on light curtain input
- Functions selectable by rotational switches: protective, muting, stepping
- Suitable for type 4 or self-testing type 2 light curtains
- Undervoltage and overvoltage detection and indication
- Fixed screw terminals
Priced at
(BH5902-22-01MF2-61)
Dold LG5925 Series Light Curtain Controllers
Dold LG5925 series controllers offer low-cost, dependable monitoring of safety light curtains and control of the associated hazardous equipment.
- Single and 2-channel operation
- Output: 3 N.O. and 1 N.C. contacts
- Manual or automatic restart
- Supports light curtains with symmetric or asymmetric outputs
- Fixed screw terminals or push-in cage clamps, depending on model
Starting at
(LG5925-48-900-61)
Dold Multi-Function Safety Relay Modules
Multi-function safety relay modules provide user-selectable safety functions and can be used with various safety devices including safety light curtains.
- 2-channel UG6980 series uses the chosen function for both channels
- 2-channel UG6970 series can assign different function to each channel
- Choose from six safety functions:
- E-Stop
- Safety gate
- Two-hand control
- Safety mat / Safety edge
- Exclusive XOR contacts
- Light curtain
- Output: 2 N.O. contacts per safety function, force guided
- Manual restart or automatic restart
- Pluggable screw terminals
Starting at
(UG6980-02PS-61-24)
Dold UG6960 Series Light Curtain Safety Controller with Adjustable Delay
These Dold light curtain controllers are ideal for systems requiring a small, user-defined time delay between safety device activation and safety relay contact release.
- 2-channel
- Various delay functions adjustable on device:
- Release delay
- Release delay retriggerable
- On delay
- Fleeting on make / break
- Delay function settable via potentiometer
- Output: max. 2 N.O. instantaneous semiconductor monitoring outputs, 2 N.O. time-delay guided contacts, 1 instant monitoring contact, and 1 time-delayed monitoring contact
- LED indicators for operation, delay contacts, and failure
- Pluggable screw terminals
Priced at
(UG6960-04PS800-300)
IDEM SCR31P Series OSSD/Light Curtain Controllers
IDEM Viper series OSSD/light curtain safety controllers offer enhanced LED diagnostics and simplified wiring. The SCR31P series' force guided relays ensure a single fault does not lead to loss of the safety function.
- Dual channel operation
- Monitored manual or auto start/reset
- Up to three safety output contacts and 1 N.C. auxillary output contact
- Easy diagnostics of status via 6 LEDs
- Fixed or pluggable screw terminals, depending on model
Starting at
(SCR31P-280003)
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