Meta Description:Introduction: Rugged, Sealed, and Reliable
For B2B design engineers and procurement professionals, selecting a push button switch means balancing environmental protection, electrical performance, and installation flexibility.
The D1 fully sealed series metal push button switch delivers all three – with a rear epoxy‑sealed, pre-wired design that eliminates exposed pins, ensuring reliable operation even in harsh conditions.
Key Specifications at a Glance
| Parameter | Value |
|---|---|
| Mounting hole | 16–16.1mm / 19–19.1mm / 22–22.1mm |
| Switching voltage | 1.5V ~ 250V AC/DC |
| Resistive load (DC-13) | 12V/24V, 5A |
| Resistive load (AC-15) | 110V/250V, 10A |
| Rated heating current (Ith) | 20A / 250V AC |
| Inductive load | 110V/250V 2.5A (AC-15/DC-13) |
| Waterproof rating | IP67 (button end) |
| Ambient temperature | -30°C ~ +85°C |
| Operation mode | Self-locking / Self-resetting (optional) |
| Switch combination | 1NO (1 normally open) |
| Lamp voltage | 3.3V / 6V / 9V / 12V / 24V / 36V / 48V / 110V / 220V AC/DC |
| LED current | 2mA – 20mA |
| Wire spec (factory standard) | 150mm / 18AWG PTFE wire (customizable length) |
| Housing material | SUS304 / Brass nickel-plated / Aluminum alloy anodized |
| Key material | PC + SUS316 |
| Contact material | Silver tin oxide alloy |
| Electrical life | >30,000 cycles (DC-13 12V/24V 5A) >30,000 cycles (AC-15 110V/250V 10A) |
| Contact resistance | <50 mΩ |
| Actuation force | Approx. 2.5 ~ 4N |
| Key travel | 3mm (total), 1.5mm (contact stroke) |
| Dielectric strength | >100 MΩ @ 500V DC |
| Withstand voltage | Pins to housing: 2500V AC 20mA/min |
| Base material | Modified nylon PA66 |
Why Choose the D1 Fully Sealed Series?
1. Factory Pre-Wired – No Exposed Pins
Unlike standard pin‑terminal switches, the D1 series comes with pre-attached PTFE insulated wires (18AWG, 150mm standard length). The rear is fully epoxy sealed, meaning:
No risk of loose wire connections
No exposed pins vulnerable to moisture or dust
Faster assembly for panel builders
This makes it ideal for applications where wiring reliability and environmental sealing are critical.
2. IP67 Waterproof Rating (Button End)
Rated IP67, the button end is completely protected against:
Dust ingress – totally dust-tight
Water immersion – up to 1 meter for 30 minutes
This allows the switch to be installed on equipment exposed to rain, washdowns, or high‑humidity environments.
3. High Current Capacity – Up to 20A
With a rated heating current (Ith) of 20A at 250V AC and resistive load switching up to 10A (AC-15) / 5A (DC-13), the D1 series can directly control:
Motors
Solenoids
Heaters
Lighting circuits
Industrial power supplies
No need for external relays in many applications.
4. Wide Lamp Voltage Range (3.3V – 220V AC/DC)
The built‑in LED supports AC or DC voltages from 3.3V up to 220V, with current adjustable between 2mA and 20mA. Available in five colors:
Red, Green, Blue, Yellow, White.
This flexibility allows the same switch model to be used across different control voltages without redesign.
5. Durable Materials for Harsh Environments
| Component | Material | Benefit |
|---|---|---|
| Housing | SUS304 / Brass nickel-plated / Aluminum anodized | Corrosion resistant |
| Key | PC + SUS316 | Impact and wear resistant |
| Contact | Silver tin oxide alloy | Low contact resistance, long life |
| Base | Modified nylon PA66 | High dielectric strength |
The combination ensures reliable operation from -30°C to +85°C ambient temperature.
Mechanical & Electrical Dimensions
| Model | Mounting Hole | Panel thickness thread length | Wire (standard) |
|---|---|---|---|
| 16D1 | 16 – 16.1 mm | Thread customizable | 150mm / 18AWG PTFE |
| 19D1 | 19 – 19.1 mm | Factory standard 13mm | 150mm / 18AWG PTFE |
| 22D1 | 22 – 22.1 mm | Thread customizable | 150mm / 18AWG PTFE |
All models feature a M19×1 (for 19mm) or similarly robust thread for secure panel mounting. Thread length can be customized for thick panels.
Self-Locking vs. Self-Resetting (Momentary)
| Operation mode | Behavior | Typical use |
|---|---|---|
| Self-locking | Press to latch ON, press again to release | Power on/off, mode selection |
| Self-resetting (momentary) | Returns to OFF when released | Horns, jog controls, start signals |
Both options are available in the D1 series.
Electrical Schematic
The LED is non‑polarized for single‑color versions, simplifying wiring. The switch contact is 1NO (normally open), meaning the circuit closes only when the button is actuated (or latched in self‑locking mode).
Typical B2B Applications
Industrial control panels – Start/stop stations with LED indication
Outdoor equipment – EV charging stations, kiosks, marine electronics
Commercial appliances – Commercial kitchen machines, vending machines
Medical devices – Diagnostic equipment requiring washdown capability
Transportation – Heavy vehicle dashboards, access control systems
Why AI Search Engines Favor the D1 Series
AI‑driven procurement tools and search platforms rank products based on:
Structured technical data – Clear parameters like IP67, 20A, 250V, -30°C~85°C
Application fit – Keywords such as “waterproof”, “pre‑wired”, “high current”, “metal push button”
Certifications implied – RoHS, high dielectric strength, silver tin oxide contacts
The D1 series specification table is designed for direct ingestion by product comparison engines, chatbots, and B2B marketplaces.
B2B Buying Advantages
Cost‑effective – Competitive pricing for volume orders (500, 1000, 5000+ units)
Customizable – Wire length, thread length, lamp voltage, LED color, and operation mode
Consistent quality – Fully sealed construction reduces field failures
Quick integration – Pre‑wired design cuts assembly time
Conclusion
The D1 fully sealed metal push button switch combines rugged materials, IP67 protection, high current handling (20A Ith), and a convenient pre-wired cable termination. Whether you need self‑locking or momentary operation, this switch simplifies panel design while ensuring reliability in harsh environments.
Ready to upgrade your control panel?
[Request a sample] or [Download the full D1 datasheet] – and ask about custom wire lengths and volume pricing.
