Characteristics

Type

lever

Number of poles

single-pole

Protection level

vibration-resistant, impact-resistant, IP40

Other characteristics

control, with roller lever, precision, electromechanical, snap-action, compact

Primary current

Max.: 6 A

Min.: 1 A

Voltage

24 V, 125 V, 240 V

Description

One feature of snap action elements is the switching speed independent of the actuation speed. This indirect switching operation is achieved by a snap mechanism allowing a defined switching action. In such a way the S840 is excellently suited for low actuation speeds, e.g. in motors or spindle limit switches.
The S840 is provided with a positive opening mechanism. Even after a short circuit, the welded contact opens. For this reason the snap action switch is built into safety circuits.

Features:
– Positive opening operation: Reliable interruption even in case of contact welding, in compliance with IEC 60947-5-1, Annex K
– Single break contacts: Changeover with single break contacts. Also available with NC or NO contacts. Compact design.
– Self-cleaning contacts: Constantly low contact resistance ensures high contact reliability over the entire design life of the switch
– Sealed to: IP40 in accordance with IEC 60529
– Contact material: Silver or gold