Procurement teams shortlist SFD-AB-M20 with Autonics Proximity Sensor, Autonics Digital Counter and Autonics Sfdl M6A M20, aligning budget approvals, warranty terms, and multisite availability for smoother rollout across plants.
Autonics SFD-AB-M20 Safety Door Switches
The Autonics SFD-AB-M20 Safety Door Switch offers Min. 80N opening force, Min. 10mm, 0.05 to 1m/s, Max. 20/min Operating frequency. Manufactured by Autonics under the Autonics Safety Door Switch category, this model belongs to the Autonics SFD Series.
| Brand | Autonics |
| Product Type | Safety Door Switches |
| Model Number | SFD-AB-M20 |
Autonics SFD-AB-M20 Safety Door Switches β Technical Specifications
| Specification | Value |
|---|---|
| Directing opening force | Min. 80N |
| Directing opening distance | Min. 10mm |
| Operating speed | 0.05 to 1m/s |
| Operating frequency | Max. 20/min |
| Life cycle_Mechanical | Min. 1,000,000 operations |
| Vibration_Malfunction | 0.75mm amplitude at frequency of 10 to 55Hzin each X,Y,Z direction for 10 min |
| Shock | 1,000m/sΒ² (approx. 100G) in each X, Y, Z direction for 3 times |
| Shock_Malfunction | 300m/sΒ² (approx. 30G) in each X, Y, Z direction for 3 times |
| Environment_Ambient temperature | -30 to 70β, storage: -40 to 70β |
| Environment_Ambient humidity | 35 to 90%RH, storage : 35 to 90%RH |
| Protection structure | IP67(IEC standerd, except head) |
| Material | Head: polyamide 6, case: polyamide 6, operation key: stainless steel 304 |
| Applicable cable | AWG 20-18 (0.5 to 0.75mmΒ²) |
| Sold separately | Operation key |
| Dielectric strength_Between the terminals | 2kV |
| Connection Type | M20 Connector cable |
| Rated load voltage & current | Resistive load : 6A/250VAC~, 0.6A/250VDC@(=)Inductive load : AC-15 3A/240VAC~,DC-13 0.27A/250VDC@(=) |
| Dielectric strength_Between each terminal and non-live part | 5kV |
| Insulation resistance | 100M⦠or more (500VDC megger basis) |
| Contact resistance | Max. 50mΞ© (initial value) |
| Life cycle_Electrical | Min. 100,000 operations (240VAC~ 6A) |
| Conditional short circuit current | 100A |
| Weight | Approx. 120g(approx. 80g) |
The Autonics SFD-AB-M20 Safety Door Switch is built with a strong focus on mechanical durability and electrical safety. It operates with a minimum directing opening force of 80N and an opening distance of at least 10mm, enabling consistent disengagement during machine access events. Its operating speed range of 0.05 to 1 m/s and a high mechanical life cycle of over 1 million operations ensure longevity in high-traffic environments. The switch is vibration-tested across all three axes and can withstand up to 100G shock force without malfunction, meeting strict industrial reliability standards.
Rated for resistive loads up to 6A at 250VAC and inductive loads like AC-15 3A at 240VAC, the SFD-AB-M20 performs reliably under diverse electrical conditions. It has strong insulation resistance above 100M⦠and a dielectric strength up to 5kV between terminals and non-live parts. Built with a polyamide 6 enclosure and a stainless steel 304 operation key, the device is IP67-rated, making it resistant to water ingress in harsh environments. Its M20 connector cable design ensures easy installation and stable connectivity. Overall, Autonics SFD-AB-M20 is engineered to deliver trusted performance in demanding safety-critical environments, combining high endurance with secure switching features.
Even in dusty or humid environments, its IP67-rated build protects internal components from failure, which is vital in process plants, food manufacturing, and metalworking lines. The shock resistance and long electrical life make it reliable for 24/7 operations, especially where repeated door access is required. With its robust electrical and mechanical attributes, Autonics SFD-AB-M20 is a dependable choice for engineers prioritizing both operator safety and machine uptime.
