



Safety Sensors
SICK RLY3-EMSS100 Sensor
SICK RLY3-EMSS100 safety relay, part 1085345. ReLy evaluation of emergency stops, guard switches and safety sensors.
Overview
The SICK RLY3-EMSS100 (part number 1085345) is a safety relay of the ReLy family. It evaluates the signals of safety sensors such as emergency stops, guard switches and light curtains and provides safe switching outputs for the machine control, forming the link between sensing and safe stop functions.
How It Works
The relay monitors its safety input circuits for closed-loop integrity. When the inputs are healthy and activated, the guided-contact outputs close and permit machine operation. When a safety sensor trips or a fault is detected, the outputs open and the machine executes the safe stop.
Key Features
- Safety relay for evaluating safety sensors
- Part number 1085345
- Guided-contact safe outputs
- Suitable for emergency stops, guard switches and curtains
- Compact DIN-rail style integration
- Diagnostics for wiring and device faults
Typical Applications
- Evaluation of emergency stop circuits
- Guard switch monitoring on machinery
- Integration of safety light curtain outputs
- Safety functions on packaging and processing machines
- Safety circuit retrofits on existing equipment
Specifications
Attribute | Value |
|---|---|
Model | SICK RLY3-EMSS100 |
Part number | 1085345 |
Device type | Safety relay, ReLy family |
Installation and Setup Notes
Wire the safety inputs according to the sensor type (single or dual channel) and connect the outputs to the machine's contactor control with monitoring. Verify the start behavior and reset function during commissioning, and test the complete safety function at each maintenance interval.
Frequently Asked Questions
Which sensors can be connected?
Typically emergency stop devices, electromechanical and non-contact safety switches, and OSSD outputs of light curtains depending on the variant.
Does it replace a safety controller?
For simple functions it is sufficient; larger applications with many sensors benefit from modular safety controllers.
What does EMSS denote?
The order code identifies the input configuration and function of this ReLy variant.



