Why the 16mm Ultra-Short Momentary Switch Belongs in Your Next BOM

When your control panel depth is limited but field reliability cannot be compromised, the 16mm ultra-short momentary push button switch solves both problems. With a body length significantly shorter than standard switches, this component fits into thin enclosures, handheld devices, and space-restricted machinery — while maintaining IP67 waterproofing and anti-vandal durability.

This post covers everything engineering and procurement teams need to know: momentary action, mechanical fit, environmental ratings, and LED customization.

Core Product Positioning

Momentary function explained: The circuit is closed only while the button is being pressed. When released, it returns to its original (OFF) state. This is the opposite of latching/self-locking.

Key Technical Specifications for Engineers

⚠️ Low-power signal switching only. For high-power AC loads, always use an external relay or contactor.

Why “Ultra-Short” Matters for B-Side Design

Standard 16mm anti-vandal switches often have long rear bodies, making them impossible to fit into:

• Thin industrial HMI panels (<25 mm internal depth)

• Elevator floor selection panels

• Medical hand controls

• Public access kiosks with space constraints

• Portable test & measurement equipment

The ultra-short version reduces rear protrusion significantly, giving mechanical engineers more freedom in enclosure design and thermal management.

Environmental & Mechanical Advantages

1. IP67 at the button end

Dust-tight and protected against temporary immersion (1 meter for 30 minutes). Suitable for washdown environments, outdoor kiosks, marine applications, and food processing equipment.

2. Wide temperature range: -30 °C to +85 °C

Operates reliably in cold storage, desert solar installations, unheated factories, and outdoor telecom cabinets.

3. Anti-vandal metal construction

Choose from stainless steel SUS304, nickel-plated brass, or anodized aluminum alloy. Also available in PC & SUS316 for specific corrosion or insulation requirements.

4. Momentary action

Perfect for door release buttons, horn switches, reset buttons, test points, and any application where you need a temporary signal (not a maintained state).

LED Illumination Options

This switch series supports integrated LED illumination for clear status feedback:

• Supported colors: Red, green, yellow, blue, white

• Advanced options: Two-color, three-color, and multi-color (customizable)

• Lamp bead voltage & current – specify according to driving circuit

Typical use cases for illuminated momentary switches:

• Green – “Press to start”

• Red – “Emergency / stop” (momentary)

• Blue/White – aesthetic design for modern equipment

Typical B2B / Industrial Applications

Ordering & Design-In Notes

• Mounting hole: 16 mm (confirm mechanical drawing for exact tolerance)

• Pin style: Refer to pinout diagram (COM+, COM-, etc.)

• Dielectric strength & compressive strength – available from factory upon request

• Electrical life & contact resistance – load-dependent; consult factory for curves

Manufactured by: Wuhan Sukehe Intelligent Technology Co., Ltd.
Model series reference: RUGSWT (ultra-short momentary variant)

Final Recommendation for Procurement & Engineering Teams

If your panel depth is limited and your application requires a momentary, IP67, anti-vandal push button with LED options, the 16mm ultra-short series is a reliable, space-saving alternative to standard switches.

Request the full mechanical datasheet to verify:

• Exact rear body length

• Pin configuration

• LED electrical parameters

• Contact rating for your specific load (inductive/resistive)

Samples or technical inquiry?
Contact the factory directly for sample requests, custom LED configurations, and bulk pricing.