

The Omron D4ER series have limit switch with roller plunger. This limit switch have 1 amp rated current at 30 vac with cable terminal.
IP67G degree of protection

Roller Plunger Limit Switch, IP67, SPDT, 1A Max
Manufacturer:
Omron
Manufacturer Part No:
D4ER-1A21N
Enrgtech Part No:
ET22112629
Warranty:
Manufacturer
£ 72.30
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Actuator Type:
Roller Plunger
Pole and Throw Configuration:
SPDT
IP Rating:
IP67
Maximum Current:
1A
3D Model:
https://www.traceparts.com/els/rs-components/en/api/viewer/3d?SupplierID=RS_COMPONENTS&PartNumber=2147028&DisplayLogo=False