SICK RE11-SA03 SAFETY SWITCHES

Product Description

The SICK RE11-SA03 is a magnetic non-contact safety switch designed for monitoring the position of safety doors, protective guards, and machine access panels in industrial automation systems. It operates using magnetic actuation without mechanical contact between switching elements, helping reduce mechanical wear and maintenance requirements. The compact rectangular design allows convenient installation in industrial machinery and safety guarding applications. It features one Normally Open (NO) contact and one Normally Closed (NC) contact for safety monitoring and control circuit integration. Its IP67-rated enclosure provides protection against dust and temporary water immersion under specified test conditions. The 3-metre PVC cable enables direct electrical connection to a suitable safety evaluation unit or control system.

Technical Data

Sensor Principle: Magnetic

Switch Type: Non-contact safety switch

System Component: Sensor with actuator

NO Contacts: 1

NC Contacts: 1

Signalling Contacts: 0

Safe Switch-On Distance (Sao): 3 mm

Safe Switch-Off Distance (Sar): 12 mm

Switching Output: Reed contacts

Maximum Switching Voltage: 30 V DC

Maximum Switching Current: 400 mA

Cable Length: 3 m

Cable Material: PVC

Conductor Material: Copper

Conductor Cross-Section: 0.25 mm²

Housing Design: Rectangular

Dimensions (W × H × D): 26 × 36 × 13 mm

Protection Rating: IP67

Safety Classification: Type 4 according to EN ISO 14119

B10d: 2 × 10⁷ switching cycles under specified low-load conditions

Actuator Coding: Low coding level

Safe Series Connection: Not supported; individual wiring with diagnostics is required