SICK UE48-20S2D2 Safety Relay

Description

The SICK UE48-20S2D2 is a compact and reliable safety relay designed for monitoring emergency stop circuits, safety gates, and other safety-related control functions. It meets the highest safety standards, including SIL3 and PL e, ensuring maximum protection for personnel and machinery. With a 24V AC/DC supply voltage, it is highly versatile for various industrial applications.

Specifications

• Supply Voltage: 24V AC/DC
• Power Consumption: 2.6 W / 5 VA (max)
• Safety Level: SIL CL 3 (EN 62061), Cat. 4, PL e (EN ISO 13849)
• Outputs (Safety): 2 Normally Open (NO)
• Outputs (Auxiliary): 1 Normally Closed (NC)
• Response Time: 25 ms (max)
• Operating Temperature: -25 deg C to +55 deg C

Label Info

• Manufacturer: SICK
• Type of Device: UE48-20S2D2
• Ident. No.: 6024915
• Serial Number: 1635 0256

Application

Ideal for use in machine building, manufacturing plants, and automated systems where reliable monitoring of safety devices like E-stops, light curtains, and safety switches is required.

Country of Origin

Made in Hungary.

CO2 Impact

By purchasing this refurbished item, you are contributing to a circular economy and helping to reduce industrial waste. This specific SICK safety relay saves an estimated 8 kg of CO2 compared to a new product. This is equivalent to the emissions from driving a standard car for 40 kilometers.

Availability

This is an obsolete item, but it is available from our stock. Ideal for repairs and replacements to avoid costly system upgrades. Order now from PLC2Day for expert support and fast delivery.

FAQ

The primary differences are in size, additional diagnostic features, and potentially more flexible connection technologies in newer series like ReLy. However, the core safety function (SIL3/PL e) of the UE48-20S2D2 remains highly reliable for its intended applications.

No, the UE48-20S2D2 is a universal safety relay typically used for E-stops and safety gates. For two-hand control applications, you would need a specialized relay that complies with EN 574, such as a SICK UE43-3MF or a similar model.

Yes, the wiring diagram and specifications indicate that this relay supports external device monitoring (EDM), often referred to as a feedback loop. This is crucial for ensuring that external contactors or relays connected to the safety outputs are functioning correctly.

Last Update: Friday, March 13, 2026

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