Sick
Sick UE10-3OS2D0 safety relay
Safety relay rated SIL3 and PL e with three enable contacts and fixed screw terminals
- SIL3-rated safety integrity meets IEC 61508 standards
- Category 4 architecture achieves PL e per EN ISO 13849
- Three safety-relevant enable contacts provide reliable output switching
- 20-year mission time with 3.0×10⁻⁸ PFHD ensures long-term dependability
- Compact 22.5 mm width fits tight panel installations
Safety relay for industrial guarding
The Sick UE10-3OS2D0 is a safety relay designed for machine-guarding circuits that require the highest safety ratings. It meets SIL3 per IEC 61508 and SILCL3 per EN 62061, as well as Category 4 and PL e under EN ISO 13849. Electricians and control-panel builders use it to monitor emergency-stop devices, safety gates and light curtains in automated production cells.
Three safety contacts with defined load limits
The unit provides three enable current (N/O) contacts relevant for safety, connected through fixed screw terminals. Rated insulation voltage is 300 V AC with a 4 kV rated impulse withstand voltage. B10d values show 1.26 x 106 cycles at AC-15 230 V and 1.5 A, 5.9 x 106 cycles at 230 V and 0.75 A, 4.35 x 105 cycles at DC-13 24 V and 2.5 A, and 1 x 107 cycles at 24 V and 0.63 A. The PFHD is 3.0 x 10-8 with a 20-year mission time.
24 V DC supply with PELV or SELV output
Power consumption is 2.4 W from a DC supply connected to terminals B1-B2/B3-B4. The output circuit operates above 25 V AC or 60 V DC under PELV conditions, or at 25 V AC / 60 V DC under PELV or SELV. Overvoltage category is III and test voltage is 2 kV at 50 Hz per EN 60439-1. The housing measures 22.5 mm wide by 114 mm high by 96.5 mm deep and weighs 0.2 kg.
Highlights
- SIL3-rated safety integrity meets IEC 61508 standards
- Category 4 architecture achieves PL e per EN ISO 13849
- Three safety-relevant enable contacts provide reliable output switching
- 20-year mission time with 3.0×10⁻⁸ PFHD ensures long-term dependability
- Compact 22.5 mm width fits tight panel installations
Specifications
| Brand | SICK |
|---|---|
| Model | SICK UE10-3OS2D0 |
Questions about this item
Can I connect this UE10-3OS2D0 relay to my existing 24 V DC safety sensors using the fixed screw terminals?
Yes, the relay provides fixed screw terminals for the voltage supply B1-B2/B3-B4 and three enable current contacts rated for DC-13 at 24 V with 2.5 A, matching typical 24 V DC safety circuits.
How do I verify the UE10-3OS2D0 is functioning correctly after wiring it into my safety circuit?
The relay meets SIL3 per IEC 61508 and PL e per EN ISO 13849; correct operation is confirmed when the three safety enable contacts close only while all input conditions are satisfied and the internal diagnostics show no fault.
What comes in the box with the UE10-3OS2D0 and what must I source separately?
The unit itself is supplied; you must provide the 24 V DC power supply, wiring for the fixed screw terminals, and any external safety sensors or emergency-stop devices required by your application.
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