Cretek

SICKSafety Relays

Sick UE48-2OS Safety Relay

The Sick UE48-2OS is a specialized safety relay designed to interface with safety light curtains, safety laser scanners, and other OSSD-output guarding devices. It provides two safe semiconductor OSSD (Output Signal Switching Device) outputs that mirror the state of the connected safety sensor, delivering SIL 3 (IEC 62061) / PL e (ISO 13849-1) performance without the arcing and wear associated with mechanical relay contacts. The relay evaluates both OSSD channels with cross-circuit and short-circuit detection, automatically entering the safe state if differential faults are detected. An integrated EDM (External Device Monitoring) input verifies that downstream contactors or valves have de-energised correctly when the safety demand is active. Compact 22.5 mm housing and tool-removable plug-in terminals simplify installation and maintenance, while multi-colour LEDs provide clear diagnostic feedback for troubleshooting without a multimeter.

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Technical Specifications

Output Type2 semiconductor OSSD (PNP)
Output Rating500 mA each at 24V DC
Safety LevelSIL 3 / PL e / Cat. 4
Input CompatibilityLight curtains, laser scanners, OSSD sensors
EDM InputExternal device monitoring (N.C. feedback)
Housing Width22.5 mm

Applications & Use Cases

Light curtain safety interface for assembly workstations

Safety laser scanner output integration for AGV zones

Hazardous area access with photoelectric guard monitoring

Robotic cell perimeter detection with OSSD sensor evaluation

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Product Details

Brand
SICK
Category
Safety Relays
Availability
In Stock
Product Code
sick-ue48-2os

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