Square red momentary push button switch with normally-open (NO) operation. Designed for 12VDC and 220VAC control circuits, signalling systems, automotive applications, and equipment controls requiring reliable push-to-make activation.
What it is
The E Auto Square Red Momentary Push Button Switch is a normally-open (SPST-NO) control switch designed for automotive, industrial, electronic, and general-purpose switching applications. Featuring Push-To-Make / Return-To-Break (PTM/RTB) operation, the switch activates the circuit only while the button is pressed and automatically returns to its default state when released.
Its square panel-mount design and highly visible red actuator make it ideal for control panels, dashboards, signalling systems, and equipment controls where temporary circuit activation is required.
Use Cases / Applications
Suitable for a wide range of control and activation applications, including:
- Automotive control systems
- Dashboard controls
- Industrial machinery controls
- Electronic projects and DIY applications
- Signalling circuits
- Test and measurement equipment
- Appliance controls
- Control panels and enclosures
- Trigger circuits
- General-purpose momentary switching applications
Its normally-open operation makes it particularly suitable for circuits that require activation only while the button is pressed.
Key Benefits
- Normally-open (NO) switching configuration
- Push-To-Make / Return-To-Break operation
- Bright red actuator for easy identification
- Compact square panel-mount design
- Suitable for both 12VDC and 220VAC applications
- Reliable switching performance for control circuits
- Easy solder-lug wiring connections
- Ideal for automotive, industrial, and electronic applications
Momentary normally-open switches are widely used in control systems because they provide precise temporary circuit activation, making them ideal for signalling, triggering, and control functions.
Safety Compliance
- Suitable for 12VDC and 220VAC applications
- Designed for low-current switching and control circuits
- Install according to applicable wiring regulations and electrical safety requirements
- Ensure the connected load remains within the switch’s operating limits
Always isolate power before installation and verify compatibility with the intended circuit.
E Auto products are designed to provide dependable automotive and electrical switching solutions for replacement, maintenance, and custom installation applications.
Terminology:
Normally Open (NO):
A push button where the circuit is broken when the button is not pressed and closed (circuit connected) when pressed.
Normally Closed (NC):
A push button where the circuit is closed (circuit connected) when the button is not pressed and broken (circuit open) when pressed.
SPST: Single Pole Single Throw
SPDT: Single Pole Double Throw
DPST: Double Pole Single Throw
DPDT: Double Pole Double Throw
PTM/RTB: Push To Make/Release To Break
These terms refer to the number of poles and throws in the switch, describing the electrical circuitry.
Specification
- Function: Push Button Momentary
- Dimensions: 39.5×10.5mm
- Color: Black | Red
- Illumination: No
- Material: Polycarbonate (PC)
- Mounting Type: Square Through Hole
- Amps: 3A
- Circuit: SPST-NO
- Pole/Contacts: 2
- Switch Positions: On/Off (PTM/RTB)
- Voltage: 12VDC | 220VAC
- Throw/Positions: 1
- Termination Style: Solder Lug
- Weatherproof: No
- Brand: E Auto
- Warranty: Yes
- Nationwide Shipping
Auto Push Button Switches 12V, Auto Switches, Automotive, Electronic Components, Electronics, Push Button Switches 220V
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