Siemens Contact block, magnetic switch, left-hinged door, 2NC, 3m Part number 3SE6617-3CA04

Product Overview

The Siemens 3SE6617-3CA04 is a magnetically operated safety switch from the SIRIUS 3SE66 family. It is a compact rectangular sensor unit designed for left-hinged doors. The device features two safety contacts (NC) and one signaling contact (NC), with a 3 m attached cable and no LED indicator. The unit is rated for DC operation and provides IP67 ingress protection, making it suitable for safety-related circuits in industrial environments.

Key Features

• Magnetically operated safety switch, SIRIUS 3SE66 series
• Left-hinged door configuration
• Contact configuration: 2 safety NC + 1 signaling NC
• Integrated 3 m connecting cable
• No LED indicator (basic variant)
• Compact housing size: ~13 mm length × 26 mm width × 36 mm height
• Protection rating: IP67 (sealed housing for dust/water ingress resistance)
• Sensing voltage rated value: 75 V DC (max)

Technical Specifications

• Article Number: 3SE6617-3CA04
• Product Family: SIRIUS 3SE66 magnetically operated switches
• Operating Voltage (rated): 75 V DC
• Rated Operational Current: 400 mA
• Rated Power: 10 W
• Number of Safety NC Contacts: 2
• Number of Signalling NC Contacts: 1
• Ambient Operating Temperature: -25 °C … +70 °C
• Dimensions (HxWxL): ~36 mm × 26 mm × 13 mm
• Mounting / Actuation: Left-hinged door actuator, magnet operated

Compliance & Certifications

• Designed for use in safety-related circuits (SIL 3 / PL e rated according to EN ISO 13849-1)
• Conforms to IEC / EN standards for non-contact safety switches and interlocks
• Included in Siemens safety system portfolio for machine door monitoring and guard locking

Applications

This safety switch is ideal for applications requiring compact door monitoring on left-hinged guards in industrial automation, machine tools, packaging systems and other manufacturing equipment where safety circuit integrity is critical. It enables detection of guard position (open/closed), supports safety contacts as well as auxiliary signalling, and maintains reliable performance even in harsh environments thanks to its IP67 rating.