S860 – Keylock switches

1 or 2 pole series with snap-action switches, rated insulation voltage 400 V, conv. thermal current 10 A

Keylock switches

S860 Series keylock switches are fitted with S800 a Series snap-action switches, which have a current rating of 10 A.

The S800 a is a Form C SPDT snap-action switch with double-break contacts and positive opening operation, which ensures the failsafe disconnection of the contacts even if they have become welded together after a short-circuit. That is what makes them ideally suited for use in safety-related applications.

Thanks to their snap-action mechanism these switches allow for slow actuator speed and, despite their small package size, a failsafe switching of relatively high loads.

The locking cylinder functions both as actuator and interlock. There is a fixed detent position for ON and OFF with key pull only in the OFF positon (when contacts are open). The switches are activated by a key that is turned in a circle.

Our keylock switches are fitted with a standard locking cylinder and keyway system. However, the cylinder is also available with two alternative keyway systems (see ordering code).


  • Electrical interlocking switches for protection against unauthorised use
  • Rotary cylinder lock version:
    ON and OFF settings slightly engaged
  • Single or double pole versions available
  • For the double pole versions the two contacts are always the same type
  • Suitable for switching purposes in control circuits

Stock items

S860 1-10
S860 1-11
S860 2-10


Keylock switches S860 series
Conv. thermal current Ith10 A
Rated insulation voltage Ui400 V
Rated impulse withstand voltage Uimp4 kV
Switching elementSnap-action switch S800 a series
Ingress protection rating, IEC 60529Terminals IP00, contacts dustproof
Terminal typeScrew-type M3 with saddle clamp for 2 wires AWG 18 ... 13
Weight260 g
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Related Downloads

Catalogue B120
S126, S860 - Keylock switches single and double pole
/en/products/electrics-for-rolling-stock/thank-you-kopie/S860 – Keylock switchesElectrics for rolling stock

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