Many procurement teams check SFN-M-050 against Autonics Proximity Sensor, Pilz Safety Door Switch and Autonics Digital Counter before signing purchase orders, verifying quality, compliance, and after-sales support availability.
Autonics SFN-M-050 Safety Door Switches
The Autonics SFN-M-050 Safety Door Switch offers opening force, , , 100Hz Operating frequency. Manufactured by Autonics under the Autonics Safety Door Switch category, this model belongs to the Autonics SFN Series.

| Brand | Autonics |
| Product Type | Safety Non-Contact Door Switches |
| Model Number | SFN-M-050 |
Autonics SFN-M-050 Safety Door Switches โ Technical Specifications
| Specification | Value |
|---|---|
| Operating frequency | 100Hz |
| Vibration_Malfunction | 1.0 mm amplitude at frequency of 10 to 55 Hzin each X, Y, Z direction for 10 min |
| Shock | 300m/sยฒ (approx. 30G) in each X, Y, Z direction for 3 times |
| Shock_Malfunction | 300m/sยฒ (approx. 30G) in each X, Y, Z direction in output ON/OFF status for 3 times |
| Protection structure | IP67(IEC standard) |
| Material | Body/CAP: PC |
| Operation distance_OFFโON | โฅ 5 mm |
| Operation distance_ONโOFF | โค 15 mm |
| Power supply | 24VDC@(=)ยฑ10% |
| Power consumption | โค 400mA |
| Sub output | PNP open collector output - 24 VDC, 10 mA |
| Operation indicator | ON: green, OFF: red |
| Life expectancy | โฅ 20,000,000 times (with low load) |
| Protection circuit | Surge protection circuit, output short over current protection circuit, reverse polarity protection circuit |
| Dielectric strength | 1,500 VAC~ 50/60Hz for 1 minute |
| Vibration | 1.0 mm amplitude at frequency of 10 to 55 Hzin each X, Y, Z direction for 2 hours |
| Ambient temperature | -10 to 55โ, storage: -20 to 60โ |
| Ambient humidity | 35 to 85% RH, storage: 35 to 85% RH |
| Connection | Cable type |
| Connector type | M12 Connector |
| Insulation resistance | โฅ 50 Mฮฉ (500 VDC@(=) megger) |
| Weight | Approx. 199.5g(approx. 214.8g) |
The Autonics SFN-M-050 is a high-performance Safety Non-Contact Door Switch engineered for reliable detection of door and guard positions without mechanical wear. With a rugged IP67-rated housing made from high-durability PC material, this model ensures long-term performance in dusty, wet, or vibration-prone environments. The operation distance is defined by a switching range of โฅ 5 mm (OFFโON) and โค 15 mm (ONโOFF), minimizing false triggers while maintaining safety integrity.
This safety switch operates on 24V DC ยฑ10% and consumes less than 400mA, making it energy efficient for continuous use. It features a PNP open collector output, suitable for connecting to PLCs and safety relays. The device includes advanced protective features such as surge suppression, short-circuit protection, and reverse polarity protection, extending product life and increasing safety in unpredictable industrial conditions. Visual indicators are integrated: green (ON) and red (OFF), allowing real-time status identification.
The SFN-M-050 has undergone rigorous testing for durabilityโhandling vibrations up to 55Hz and shocks of 300m/sยฒ (30G) across all axes. With a life expectancy of over 20 million operations, this switch is built for reliability in high-cycle applications. It connects via M12 connector and weighs approximately 199.5g, ensuring secure and easy installation. For full specifications and installation details, refer to the official Autonics Sensors and Controllers page.
If you're upgrading to modern safety standards or integrating a new safety circuit, the Autonics SFN-M-050 Safety Non-Contact Door Switch delivers trusted performance and long-term reliability in demanding applications requiring SFN-M-050.







