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4. Door switch
Door switches are used to detect door openings. Door switches are safety extralow voltage (SELV) components that
are able to create an open and closed circuit.
The enhanced door switch, and activator, are SELVcomponents, over-moulded for strengthened physical protection
and resistance to water ingress, and create an open and closed circuit.
Enhanced door switches must be used with enhanced activators.
Enhanced door switches are available from Elstat in various lengths.
4.1 How to mount the door switch
Door switches are usually mounted with the door
switch on the cooler and the activator on the door.
Door switches and activators must be fixed using
counter sunk screws or bolts with the following
characteristics:
• Head: countersunk head maximum diameter
5.0mm (0.24in)
• Thread: maximum diameter 3.0mm (0.16in)
The screws must be tightened to a maximum torque of 0.5Nm (0.37lbfft).
Note
Door switches and activators supplied by elstat must not be installed using rivets. Using rivets
invalidates the warranty.
Alignment Dimensions Notes
X Horizontal 0mm (0in) +/-20mm (0.7in)
measured when the door is closed and
the gap (z-dimension) is correct
Y Vertical 0mm (0in) +/-10mm (0.4in)
Z Gap
0mm (0in) to 5mm (0.2in) +/-2mm
(0.07in)
The alignment of the door switch and activator is critical for the correct operation of the door switch. The following
table details alignment tolerances.
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