22mm Normally Open Push Button Switch Momentary Latching Stainless Steel 3-Pin Terminal | FILN

Button Switch DrawingProfessional 22mm Normally Open Push Button Switch

The FLM22-HJ-1 is a premium 22mm normally open push button switch designed for heavy-duty industrial applications. Featuring a prominent high-head design, this metal push button switch is available in both anti-corrosive Stainless Steel and sleek Black Zinc-Aluminum Alloy. It offers versatile functionality with both momentary (auto-reset) and latching (self-locking) options. Equipped with silver contacts and a robust 3-pin terminal structure, it ensures long service life and reliable circuit control for CNC machinery, automation systems, and electrical cabinets.

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Technical Specifications

Parameter	Value
Model Number	FLM22-HJ-1
Mounting Hole Size	22mm (0.87")
Switch Rating	5A / 250V AC/DC
Function	Momentary / Latching
Terminal Type	3-Pin Terminal (Support Pre-wiring)
Contact Material	Silver Alloy (AgCdO12)
Illumination	None (Non-illuminated)
Certification	CE, RoHS, ISO9001

Comparison of Terminal Wiring Methods

Feature	Pin Terminal (This Model)	Screw Terminal	Pre-wired Type
Wiring Convenience	High (Soldering/Socket)	Moderate (Manual Screw)	Highest (Ready-to-use)
Installation Space	Compact	Large	Moderate
Service Life	Long (Stable connection)	Long	Long

Industry Standard LED Color Meanings

Although this specific model is non-illuminated, FILN provides various LED colors for customized orders. Each color represents a specific system status:

• Red: Indicates emergency, stop, or a fault condition requiring immediate attention.
• Green: Signifies normal operation, system start, or a safe status.
• Blue: Used for specific system notifications or mandatory actions.
• Yellow/Amber: Represents a warning or cautionary state that needs monitoring.
• White: Generally acts as a neutral power indicator or general status light.

Installation Guide (Threaded Mounting)

1. Prepare the control panel by drilling a hole according to the 22mm dimension.
2. Insert the metal push button switch through the hole from the top side of the panel.
3. Place the rubber waterproof gasket and then use the provided metal nut to secure the switch from the back of the panel.
4. Tighten the nut to ensure a firm, waterproof seal.
5. Perform normal wiring to the 3-pin terminals (Common, NO, NC).

Wide Application Range

Any electrical equipment requires a switch to control the on/off state of the circuit. Our metal switches are extensively used in:

• Industrial Control Panels & CNC Machines
• Medical Equipment & Laboratory Systems
• Marine Control Boards & Outdoor Equipment
• Automation Lines & Robotics

3 Pin Push Button Switch Wiring Diagram

A 3-PIN switch consists of a Common (C), Normally Open (NO), and Normally Closed (NC) terminal. Use these connections to control whether a device turns on or off when pressed.

• C (Common): Power input terminal.
• NO (Normally Open): Connects only when pressed.
• NC (Normally Closed): Disconnects when pressed.

Method 1: Normally Open (NO) Connection

Logic: Device stays OFF by default and turns ON only when pressed.

• Wiring: Power (+) to C, Device (+) to NO.
• Applications: Door bells, PC power buttons, car horns, momentary starters.

Figure 1: Normally Open (NO) Wiring Diagram

Method 2: Normally Closed (NC) Connection

Logic: Device stays ON by default and turns OFF only when pressed.

• Wiring: Power (+) to C, Device (+) to NC.
• Applications: Emergency stops, limit switches, fridge door light control.

Figure 2: Normally Closed (NC) Wiring Diagram

Terminals	Default	Action (Pressed)
C + NO	Device OFF	Device ON
C + NC	Device ON	Device OFF

FILN Factory Advantage

As a professional manufacturer, FILN offers no minimum order quantity (MOQ) and supports complete customization for wire harnesses, voltages, and laser-etched symbols.

Official Website: www.filn.com
Contact Us: [email protected]

Frequently Asked Questions (FAQ)

Q1: Is this 3-pin normally open switch available with an LED light?
The standard FLM22-HJ-1 is non-illuminated, but FILN can provide LED versions (Ring or Power symbol) upon request.

Q2: What is the mounting hole size for this 3-pin high-head switch?
This switch requires a standard 22mm (approximately 0.87 inches) diameter mounting hole.

Q3: How many pins does this non-illuminated metal switch have?
This model features a 3-pin terminal design, providing 1NO (Normally Open) and 1NC (Normally Closed) functionality.

Q4: Can I use this 22mm switch in a 12V DC system?
Yes, the contacts are rated for 5A and support voltages from low DC (12V/24V) up to 250V AC.

Q5: Does this 3-pin switch come with a pre-wired harness?
The base model is a pin terminal type, but we can provide pre-wired versions with custom cable lengths.

Q6: Is the high-head button more durable than the flat-head version?
Both have the same internal mechanism; the high-head design is simply preferred for easier activation while wearing gloves.

Q7: Is this 3-pin metal button switch waterproof?
Yes, it features an IP65 protection rating, making it suitable for damp and dusty industrial environments.

Q8: What is the difference between silver and black zinc-alloy shells?
Stainless steel offers better chemical resistance, while the black zinc alloy provides a professional aesthetic look.

Q9: Can I buy this 3-pin non-illuminated switch without an MOQ?
Yes, FILN factory supports B2B customers with no minimum order requirements for standard products.

Q10: Are these 22mm 3-pin switches CE and RoHS certified?
Yes, all our push button switches comply with CE and RoHS standards for international safety and environmental quality.