In sourcing discussions, SF2KR-MRRR-3B-03 is often placed next to Autonics Proximity Sensor, Autonics Digital Counter and Autonics Sf2Er E2R2B so procurement teams can align budgets and technical requirements effectively.
Autonics SF2KR-MRRR-3B-03 Safety Switches
The Autonics SF2KR-MRRR-3B-03 Safety Switches offers 30 times/minute operation frequency, Mechanical: β₯ 100,000 times, electrical: β₯ 100,000 times, 0.2 ~ 1.8 NΒ·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-MRRR-3B-03 |
Autonics SF2KR-MRRR-3B-03 Safety Switches β Technical Specifications
| Specification | Value |
|---|---|
| Applicable cable | Solenoid power: AWG 24 - 18Contact: AWG 18 (0.823 mmΒ²) |
| Allowable operation frequency | 30 times/minute |
| Life cycle | Mechanical: β₯ 100,000 times, electrical: β₯ 100,000 times |
| Key pushing force | β₯ 20 N |
| Key rotating torque | 0.2 ~ 1.8 NΒ·m |
| Insulation resistance | β₯ 100 MΞ© (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/sΒ² (approx. 30G) in each X, Y, Z direction for 3 times |
| Solenoid input volatge | 24VDC @(=)Β±10%(no-polarity) |
| Solenoid current consumption | 38.7 mA Β± 5% |
| Indicator | Solenoid operation (green) |
| Ambient temperature | -10 to 55β (UL approved ambient temperature: 55 β, storage: -20 to 70 β (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 | β 152 g (β 213 g) |







