A 30mm metal push button switch is a type of switch commonly used in industrial, commercial, and even consumer electronics for manual control. Its key features include a 30mm diameter (the size of the actuator/button face) and a metal construction, which offers durability and resistance to harsh environments. Below is a detailed breakdown of its characteristics, types, applications, and key considerations.
1. Key Features
- Size: 30mm diameter (standard measurement for the button face/actuator), making it suitable for applications where a medium-sized control is needed (larger than 16mm or 22mm buttons but more compact than 40mm+ options).
- Material: Typically constructed from stainless steel (e.g., 304 or 316) or aluminum, providing:
- Corrosion resistance (ideal for wet or chemical-exposed environments).
- Impact resistance (withstands physical abuse, common in industrial settings).
- High-temperature tolerance (suitable for hot environments like factories or kitchens).
- Actuation Mechanism: Momentary (most common) or latching:
- Momentary: Activates only when pressed, returning to its original state when released (e.g., emergency stop buttons, doorbells).
- Latching: Toggles between "on" and "off" states with each press (e.g., power switches).
- Electrical Ratings: Varies by model, but often supports AC/DC voltages (e.g., 12V, 24V, 110V, 220V) and current ratings (e.g., 5A, 10A) depending on the application.
- IP Rating: Many models offer high ingress protection (e.g., IP65, IP67) to resist dust, water, and oil, making them suitable for outdoor or industrial use.
- Accessories: May include LED indicators (for status visibility), protective caps, or custom legends (e.g., "Start," "Stop," arrows).
30MM Metal Push Button Specifications
Mounting hole size: Ø30mm
Head shape: flat round ring with lamp
Switch rating: 5A/250V AC
Switch combination: 1NO 1NC / 2NO 2NC
Operation type: self-duplex/self-locking type
Lamp bead color: red/green/yellow/orange/blue/white (bi-color LED optional)
Shell material: stainless steel
Protection grade: IP65, IK10
Rated: 50mA 48V DC
