Red Mushroom Cap Emergency Stop Push Button Switch 1NO 1NC 660V 10A

Key Features

• Latching Emergency Stop — The red mushroom cap marks it as an emergency stop, and its action type is latching.
• 1NO and 1NC Contacts — It has one normally open and one normally closed contact, wired to four terminals.
• 22mm Mounting Hole — It mounts through a 22mm (0.87 in) hole in the panel.

Product Specifications

• Switch Type: Push Button Switch
• Action Type: Latching
• Contact Type: 1 NO + 1 NC
• Poles: DPST
• Terminals: 4 pins
• Rated Voltage (Ui): 660V
• Rated Current (Ith): 10A
• Cap Color: Red
• Button Diameter: 40mm / 1.6 in
• Mount Hole Diameter: 22mm / 7/8 in
• Fit Panel Thickness: 6mm / 15/64 in (max.)
• Size: 60 × 70 mm (2.36 × 2.76 in)
• Material: Plastic, Metal
• Weight: 46g (1.62 oz)
• Package Content: 1 switch

What It Is / How It Works

This red mushroom-cap emergency stop push button switch has a latching action and a 1NO+1NC contact arrangement on four terminals. It is used widely to control the electromagnetic starter, contactor, relay and other automatic control electric circuits.

Who It's For / Use Cases

Push button switches of this type suit electricians, panel builders and maintenance crews who work on automatic control circuits. They are commonly found in lift, elevator and industrial equipment control panels, where a red mushroom-cap emergency stop helps operators find the control quickly.

How to Use / Care

1. Use it to control an electromagnetic starter, contactor, relay or other automatic control electric circuit.
2. Mount it through a 22mm (0.87 in) hole in a panel no thicker than 6mm (0.24 in).
3. Confirm the circuit voltage and current are within the 660V and 10A rating before wiring the four terminals.

How to Choose

Start with the circuit: the switch is rated for 660V and 10A, so match those ratings to your equipment. Next, check that your panel cut-out matches the 22mm (0.87 in) mounting hole and that the panel is no thicker than 6mm (0.24 in). Finally, confirm the 1NO+1NC contact arrangement suits the control wiring you need.

Frequently Asked Questions

What size mounting hole does it need?
It needs a 22mm (0.87 in) mounting hole, which is 7/8 in. The fit panel can be up to 6mm (0.24 in) thick (15/64 in).

What contacts does it have?
It has one normally open and one normally closed contact (1 NO + 1 NC) on DPST poles, with 4 terminals.

What is its action type?
The action type is latching, and the cap is red with a mushroom shape for emergency stop use.

What materials is it made of?
The switch is made of plastic and metal. It measures 60 × 70 mm (2.36 × 2.76 in) and weighs 46g (1.62 oz).

What certifications does it carry?
It carries the CCC and CE marks.