SAFETY KEY SF 1 A

The SF 1 A Safety Switch is a bracket-mounted, weight-activated tilt safety switch that cuts off the circuit when tilted or tipped beyond 35°.

The SF 1A Safety Switch is a tilt-sensing safety switch designed to automatically cut off power if the device tips over or tilts beyond a specified angle. The switch body is mounted on a 0.8 mm thick sheet metal bracket with mounting holes; the Ø20 x 17 mm weight located beneath the bracket keeps the contact closed when the device is in an upright position. When the device tilts beyond 35°, the weight mechanism shifts position, opening the contact and cutting off the circuit. The front dimensions of the switch body are 50.9 x 35 mm.

Operating at a 240 V AC voltage and with a current capacity of 16(4) A, the product is suitable for use with 16 A resistive and 4 A inductive loads. Thanks to its 125 °C (T125) temperature resistance, it can be safely installed inside the housings of heating devices. Connections are made via 6.3 x 0.8 mm tab terminals, enabling quick, tool-free wiring on the assembly line. With its On-Off (>35°) operating function, the product is used as a safety device in electric heaters, oil-filled radiators, fan heaters, and other portable household appliances at risk of tipping over.

The SF 1A Safety Switch, with a temperature resistance of 125 °C and a switching capacity of 16(4) A / 240 V AC, can be installed directly inside heating devices. Its mechanical design, which breaks the circuit when the device tilts beyond 35°, ensures that the device switches to a safe position without requiring user intervention.

The product is designed and tested in accordance with the requirements of the relevant safety standards. It is capable of switching under a 16 A resistive / 4 A inductive load at 240 V AC, operating at an ambient temperature of 125 °C (T125) ambient temperature, and an electrical cycle rating of 1E4; it meets the safety criteria required for household appliances with heaters that pose a tip-over risk. The 6.3 x 0.8 mm tab terminal connection ensures repeatable and secure assembly on mass production lines.

GENERAL FEATURES
Feature Value
Product Name SF 1A
Product Type Tilt Safety Switch
Category Terminal-Type
Operating Function On-Off (>35°)
Voltage 240 V AC
Current 16 (4) A — 16 A resistive / 4 A inductive
Electrical Life 1E4 (?)
Temperature 125 °C (T125)
Connection Type Terminal
Cable Type None
Terminal Type 6.3 x 0.8 mm Tab Terminal
Mounting Type Mounting with Bracket
Panel Cutout Dimensions 18 x 14 mm
Bracket Sheet Thickness 0.8 mm
Weight Dimensions Ø20 x 17 mm
Body Dimensions 50.9 x 35 x 23.2 mm
Total Height 42.5 mm
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