40MM Metal Push Button Switch

The IP67 Metal Button Switch 40MM is a large-size button easy to identify and operate. 

40mm metal push button switch with a 40mm mounting size, flat head, self-locking function, solder wire terminals, and IP67 protection, it is suitable for control cabinets and equipment panels that require a clear and reliable switching interface.

The larger button surface makes operation easier than smaller panel switches, especially when operators need to work quickly or wear gloves. The flat head can also provide a clear visual position on a busy control panel. For applications where operating status needs to be visible, LED point or ring lighting can be selected according to the panel design.

Key Features

• 40mm mounting size for large and highly visible control buttons

• Metal construction for industrial control panels and equipment

• Flat head with point LED for clear operation and status indication

• Self-locking function keeps the switch in its selected position until it is pressed again

• IP67 protection helps protect the switch against dust and temporary water immersion

• Solder wire terminals for direct wiring during equipment assembly

• Supports different contact configurations, including 1NO1NC, 2NO2NC, SPDT, and DPDT

• LED versions are commonly available for AC 250V applications

• Typical current options are around 3–5A, depending on the specific switch configuration

Pain points solved

Designed for Industrial Panel Operation

For industrial equipment, the physical size of a button can affect how quickly an operator can locate and use it. A 40mm button provides a larger operating surface, making it easier to press while wearing gloves or when several controls are installed close together.

The self-locking design is suitable for functions that need to remain switched on or off after the button is released. This can be useful for equipment start/stop control, reset functions, auxiliary control circuits, and other panel operations where the switching position needs to remain unchanged.

The LED option provides another practical function. A point or ring light can help operators identify the button position and check the operating state, particularly on equipment installed in low-light areas or panels with many similar controls.

IP67 Protection for Equipment Panels

The IP67 Metal Button Switch 40MM is designed for applications where the switch may be exposed to dust, moisture, or water during equipment operation or cleaning.

IP67 protection provides dust-tight protection and resistance to temporary immersion under the conditions defined by the IP rating. The actual suitability should still be checked against the installation environment, panel structure, cable connection, and operating conditions.

This makes the switch suitable for industrial equipment where panel components need additional environmental protection without using a small or difficult-to-operate button.

Contact Configurations and Wiring

Different control circuits may require different contact arrangements. This 40mm metal button switch can be configured with combinations such as 1NO1NC, 2NO2NC, SPDT, and DPDT, depending on the required switching function.

Solder wire terminals allow the switch to be connected directly during equipment assembly. Before ordering, buyers should confirm the required contact configuration, rated load, wiring length, LED voltage, and terminal arrangement with the supplier.

For projects using AC 250V circuits, the actual current rating should be selected according to the electrical load and the specific switch model rather than relying only on the maximum value of the product series.

Typical Applications

The large operating area and IP67 protection make this switch suitable for:

• Industrial control cabinets

• Production line equipment

• Automation machinery

• Machine control panels

• Start/stop control panels

• Reset control panels

• Safety-related operator panels

• Industrial electrical equipment

• Equipment requiring large, visible control buttons

For automation manufacturers, the 40mm format can also help create a consistent panel layout when large control buttons are preferred.

Why Choose a 40mm Metal Button Switch?

A 40mm button is mainly selected when visibility and ease of operation are more important than keeping the panel as compact as possible. Compared with smaller push buttons, the larger surface is easier to locate and press, which can be useful for operators wearing gloves or working around machinery.

The size can also make the control position easier to recognize from a short distance. Combined with LED indication, the button can provide both a clear physical interface and visual status feedback.

For equipment manufacturers, using a standardized 40mm mounting size can also simplify panel design and replacement planning when the same type of button is used across different machines or control cabinets.

FAQ

1. Is the 40mm metal button switch waterproof?

The switch is available with IP67 protection, which provides dust-tight protection and protection against temporary water immersion when properly installed. The complete panel assembly should also be designed to meet the required environmental conditions.

2. What is the function of the self-locking version?

A self-locking button maintains its switching state after being pressed. Pressing it again changes the state back, making it suitable for functions that require maintained ON/OFF control.

3. Can the switch have an LED indicator?

Yes. The 40mm version can be supplied with an LED indicator, including point or ring lighting options depending on the product configuration. LED voltage should be confirmed before ordering.

4. What contact configurations are available?

Common configurations include 1NO1NC, 2NO2NC, SPDT, and DPDT. The required configuration depends on the control circuit and should be specified when requesting a quotation.