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SIKA

VH0 Micro Flow Switch

The SIKA VH0 micro flow switches are used for monitoring volume flows. Depending on conditions, the SIKA VH0 micro flow switch is available for various nominal widths and set-point ranges. The SIKA VH0 flow switch contains a paddle system to whose end a permanent magnet is attached. Above this magnet is a reed contact, located outside the flow of fluid. A second magnet creates the force necessary to reset the switch back to the no-flow position.

Prijs en bezorgtijd worden verstrekt op aanvraag
Switching function Changeover contact
Switching hysteresis 10...30 %
Pressure rating PN 25
Medium temperature -20...110 °C
Electrical connection Plug connector EN 175301-803-A incl. cable socket
Switching current max. 5 A
Switching voltage 250 VAC
Rating 1250 VA
Protection IP65

The SIKA VH0 flow switches are used for monitoring volume flows. Depending on conditions, the SIKA VH0 flow switch is available for various nominal widths and set-point ranges. The SIKA VH0 flow switch contains a paddle system to whose end a permanent magnet is attached. Above this magnet is a reed contact, located outside the flow of fluid. A second magnet creates the force necessary to reset the switch back to the no-flow position.

When the flow being monitored pushes against the paddle system, the paddle swings away. This changes the position of the magnet in relation to the reed contact and thus activates the connection.

As soon as the flow is interrupted, the paddle moves back to its starting position, thus activating the reed contact once again. The force necessary to push the magnet back is provided by the two magnets repelling each other. Using magnetic force instead of the usual leaf spring means that the switch is considerably more stable in the long term and much less sensitive to pressure peaks.

Microswitch
A microswitch used as a switching element allows a higher electrical switching capacity than a reed switch. The resetting force required by the paddle system is produced by a leaf spring.

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