Many engineers reviewing Autonics SF2KR-RL-A2B-03 also explore Autonics Proximity Sensor, Autonics Digital Counter and Autonics Sf2Er E2R2B, ensuring they don’t miss strong alternatives before finalizing procurement decisions.
Autonics SF2KR-RL-A2B-03 Safety Switches
The Autonics SF2KR-RL-A2B-03 Safety Switches offers 30 times/minute operation frequency, Mechanical: ≥ 100,000 times, electrical: ≥ 100,000 times, 0.2 ~ 1.8 N·m key rotating torque, PC, POM material. Manufactured by Autonics under the Autonics Safety Switches category, this model belongs to the Autonics SF2KR Series.

| Brand | Autonics |
| Product Type | Safety Switch |
| Model Number | SF2KR-RL-A2B-03 |
Autonics SF2KR-RL-A2B-03 Safety Switches – Technical Specifications
| Specification | Value |
|---|---|
| Applicable cable | Contact: AWG 18 (0.823 mm²) |
| Allowable operation frequency | 30 times/minute |
| Life cycle | Mechanical: ≥ 100,000 times, electrical: ≥ 100,000 times |
| Key pushing force | ≥ 20 N |
| Key rotating torque | 0.2 ~ 1.8 N·m |
| Insulation resistance | ≥ 100 MΩ (500 VDC@(=) megger) |
| Dielectric strength | 2,500VAC~ 50/60Hz for 1 minute |
| Vibration | 1.5mm amplitude at frequency of 10 to 55Hzin each X, Y, Z direction for 2 hours |
| Shock | 300m/s² (approx. 30G) in each X, Y, Z direction for 3 times |
| Ambient temperature | -20 to 70℃ (UL approved ambient temperature: 55 ℃), storage: -40 to 70 ℃ (at no freezing or condensation) |
| Ambient humidity | 35 to 85% RH, storage: 35 to 85% RH |
| Protection structure | IP65 (Front panel, IEC standards) |
| Material | PC, POM |
| Weight | ≈ 130 g (≈ 192 g) |







