Overview
The Allen-Bradley 440N-S32032 Guardmaster Sipha coded safety sensor is a magnetically actuated non-contact interlock switch built for demanding industrial safety applications. This S12 model features rectangular molded ABS red plastic construction with integrated switch and actuator, providing 1 normally-closed and 1 normally-open safety contact plus 1 normally-closed auxiliary contact. The 10-meter cable enables flexible installation distances while maintaining safety-rated circuit integrity when connected to a Sipha control unit.
Key Features
- Magnetic coded sensing with sequence-triggered mechanism prevents bypass by simple magnet
- IP67-rated sensor head and actuator withstand steam cleaning and high-pressure washing
- Dual-channel configuration (1 N.C. & 1 N.O. safety contacts) enables high-integrity system design
- Compact molded ABS housing (45×25×12mm) with molded-in mounting brackets for quick installation
- 10-meter cable for extended reach in modular machine and guarding applications
- Supports multiple sensor connection to single Sipha control unit for complex guarding logic
Technical Specifications
- Part Number: 440N-S32032
- Sensor Series: Sipha S12
- Housing Material: Molded ABS red plastic
- Sensor Rating: 250 V ac / 300 V dc
- Contacts: 1 N.C. & 1 N.O. safety contacts; 1 N.C. auxiliary contact
- Cable Length: 10 meters
- Enclosure Rating: IP67 (sensor and actuator)
- Housing Dimensions: 45×25×12mm
- Actuation: Magnetic coded non-contact
- B10d Life: >2×106 operations
- Safety Standards: EN 1088, EN 292, EN 60204-1, ANSI B11.19, AS4024.1, ISO 13849-1, ISO 14119, IEC 60947-5-3, NFPA 79
- Certifications: CE Listed, cULus Listed
Typical Applications
- Machine guard interlocks on industrial machinery
- Safety gate and hood monitoring for manufacturing equipment
- Dual-channel E-Stop and emergency stop circuits
- Hazardous moving parts protection in packaging, plastics, and metal fabrication
- Modular machine safety systems requiring monitored shutdown circuits
- Food, beverage, and hygienic wash-down environments (IP67 rated)
Compatibility & Replacements
Compatible With
- Sipha safety control units (440N-S32021, 440N-S32025 series)
- Sipha S-series sensors (S1, S2, S3, S4 variants)
- Rockwell Automation Guardmaster safety product lines
- Multi-sensor systems with single control unit configuration
- Manual reset and external device monitoring frameworks
Replaces / Drop-In Replacement For
- 440N-S32032 (exact model reference)
- Previous series Sipha sensors with similar 10m cable and dual-contact configuration
Works With
- Sipha control unit firmware and safety logic programming
- Hardwired safety relay circuits (ISO 13849-1 compliant)
- Safety-rated PLC integrations with dual-channel monitoring
- Manual reset and contactor monitoring modules
- Coded magnetic actuation systems (prevents common-cause failures)
