SICK RE11-SA03 Magnetic Safety Switch

USD 48.26

Magnetic safety switch with 3m pre-wired cable. Features 1 NO / 1 NC reed contacts, 3mm switch-on tolerance, 30VDC, and IP67 rating for machine guarding.

SKU SICK-1059411 Category
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SICK RE11-SA03 Magnetic Safety Switch

Model Identifier RE11-SA03
Official Part Number 1059411
GTIN Standard 4047084261237

Technical Overview

Magnetic safety switch with 3m pre-wired cable. Features 1 NO / 1 NC reed contacts, 3mm switch-on tolerance, 30VDC, and IP67 rating for machine guarding.

Key Features

  • Non-contact magnetic operation with a 3 mm assured switch-on distance
  • Integrated 1 Normally Open (NO) and 1 Normally Closed (NC) reed contacts
  • Glass-fiber reinforced PPS rectangular housing built for harsh factory conditions
  • IP67 enclosure rating provides excellent resistance against dust and liquids
  • Pre-wired with a 3-meter PVC cable for straightforward, immediate installation
  • Supports 5 actuation directions for versatile and flexible panel mounting

Non-Contact Magnetic Sensing with 3mm Tolerance

Technical Specification Matrix

ParameterValue
Sensor PrincipleMagnetic
Contact Configuration1 N/O, 1 N/C
Assured Switch-on Distance (Sao)3 mm
Assured Switch-off Distance (Sar)12 mm
Connection TypePre-wired Cable (3 m)
Switching Voltage≤ 30 V DC
Switching Current≤ 400 mA
Housing MaterialGlass-fiber reinforced PPS
Enclosure RatingIP67
Ambient Operating Temperature-30 °C to +60 °C
Dimensions (W x H x D)26 mm x 36 mm x 13 mm
Physical Weight (kg)0.2
Dimensions L x W x H (cm)1.3 x 2.6 x 3.6

Industrial Applications

1. Safety Interlocking on CNC Machine Doors

Utilized to monitor the position of sliding protective doors on heavy CNC machinery. The non-contact magnetic principle ensures consistent triggering even if the door alignment fluctuates due to intense mechanical vibrations, while the IP67 rating protects the switch against coolant fluid splashing.

Problem Solved

Standard mechanical switches frequently fail due to door sag, misalignment, and coolant contamination, causing unexpected downtime and serious safety risks.

Magnetic SensingIP67 WashdownMachine Guarding3mm Sao

2. Packaging Line Access Hatch Monitoring

Integrated into automated packaging conveyors to safeguard critical operator access points. The safety switch instantly cuts power to hazardous moving parts when the hatch is opened, ensuring complete personnel safety during routine maintenance or the clearing of jams.

Problem Solved

Prevents severe operator injury by guaranteeing that automated machinery remains completely inactive and mechanically locked out whenever a protective cover is left ajar.

Non-Contact Safety1 NO / 1 NC ContactsAutomated Conveyor

3. Food Processing Washdown Guarding

Deployed on sanitary food processing lines where frequent chemical and high-pressure washdowns occur. The strictly sealed PPS housing and high IP67 rating guarantee that the safety switch remains operational and uncompromised despite heavy cleaning routines.

Problem Solved

Conventional interlock switches suffer from water ingress and corrosion in food-grade environments. This non-contact switch provides critical fluid resistance and hygienic operation.

Glass-fiber reinforced PPSIP67 EnclosureSanitary Equipment
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