Switches
Explore switches for hydraulic systems, construction machinery and industrial equipment. Hydraulic and electrical switches help monitor pressure, position and operating conditions and provide signals to machine control systems.
Select the correct replacement by OEM number, switching function, pressure range, voltage, thread, connector and machine application.
Switches for Hydraulic Systems and Construction Machinery
Hydraulic and electrical switches are used to detect operating conditions and send an electrical signal to the machine control system.
Depending on the application, switches can monitor hydraulic pressure, position, temperature or other machine parameters.
Hydraulic Pressure Switches
A hydraulic pressure switch changes its electrical state when hydraulic pressure reaches a predetermined level.
Pressure switches can be used for:
- system pressure monitoring,
- safety functions,
- pump control,
- warning systems,
- machine interlocks,
- automatic control sequences.
How to Select the Correct Switch
Check:
- OEM or manufacturer reference,
- switch type and function,
- pressure or operating range,
- switching point,
- electrical rating,
- connector type,
- thread and port dimensions,
- machine model and application.
Pressure Range and Switching Point
The pressure range must match the hydraulic system. A switch with an incorrect activation point may cause false warnings or prevent the machine from performing a required function.
Electrical Connection
Check the number of pins, connector shape and electrical specification. Similar-looking switches may use different electrical configurations.
Common Symptoms of a Faulty Switch
- incorrect warning light,
- machine function not activating,
- intermittent electrical signal,
- incorrect pressure indication,
- machine fault code,
- damaged connector or wiring.
Replacement Switches from HPM Hydraulic
HPM Hydraulic supplies replacement switches for hydraulic and machinery applications. For correct identification, provide the OEM number, manufacturer reference, electrical connector and operating parameters.
FAQ – Hydraulic and Electrical Switches
What is a hydraulic pressure switch?
It is a device that changes an electrical contact when hydraulic pressure reaches a defined level.
How do I choose a replacement pressure switch?
Match the pressure range, switching point, thread, connector, electrical rating and OEM reference.
Can a faulty pressure switch stop a machine function?
Yes. In systems using safety interlocks or electronic control, an incorrect switch signal can prevent operation.