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Mechanical pressure switches

S2 type series

S2 type series

Two-stage pressure switches, switching schemes for ZF217

Function-appropriate internal configuration of microswitches I and II, switching scheme selection table. The switch position shown

corresponds to the pressureless state. On the horizontal axis is the switching function of microswitch I (A–D); on the vertical axis is the

switching function of microswitch II (1–4). At the intersection is the switching scheme which satisfies both conditions (e.g. A 2).

Information required when ordering:

As well as the basic type (e.g. DCM10) and the switching scheme (e.g. A 2), for factory setting it is

also necessary to indicate the switching points and direction of action:

Example: DCM 10-217C-S, switching scheme: A2, Switch I: 6.5 bar falling, Switch II: 7.5 bar rising.

Microswitch I (lower switching point)

falling, close

rising, close

falling, open

rising, open