Square red momentary push button switch with normally-closed (NC) operation. Designed for 12VDC and 220VAC control circuits, safety systems, signalling applications, and equipment controls requiring push-to-break functionality.
What it is
The E Auto Square Red Momentary Push Button Switch is a normally-closed (SPST-NC) control switch designed for automotive, industrial, electronic, and general-purpose control applications. Featuring Push-To-Break / Return-To-Make (PTB/RTM) operation, the circuit remains closed under normal conditions and opens only while the button is pressed.
Its square panel-mount design and highly visible red actuator make it ideal for applications requiring clear identification and reliable temporary circuit interruption.
Use Cases / Applications
Suitable for a wide range of control and safety applications, including:
- Safety interlock circuits
- Emergency stop signalling circuits
- Industrial control systems
- Equipment control panels
- Automotive control systems
- Electronic projects and DIY applications
- Machinery monitoring circuits
- Test and measurement equipment
- Appliance controls
- General-purpose circuit interruption applications
Its normally-closed operation makes it particularly useful in applications where a circuit must remain active until intentionally interrupted.
Key Benefits
- Normally-closed (NC) switching configuration
- Push-To-Break / Return-To-Make operation
- Bright red actuator for easy identification
- Compact square panel-mount design
- Suitable for both 12VDC and 220VAC applications
- Reliable switching performance for control and safety circuits
- Easy solder-lug wiring connections
- Ideal for industrial, automotive, and electronic applications
Normally-closed switches are commonly used in safety and monitoring circuits because they allow continuous operation until a deliberate interruption is required.
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.
Brand Reputation
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:Â Single Pole Single Throw
SPDT:Â Single Pole Double Throw
DPST:Â Double Pole Single Throw
DPDT:Â Double Pole Double Throw
PTM/RTB:Â 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-NC
- Pole/Contacts: 2
- Switch Positions: Off/On (PTB/RTM)
- 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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