In the evolving landscape of industrial control and automation, panel space is at a premium, but reliability cannot be compromised. The SCJ160 Series Metal Push Button Switches from Wuhan Sukeji Intelligent Technology deliver industrial-grade performance in a compact 16mm mounting format.
Designed for OEMs, panel builders, and system integrators, the SCJ160 series combines high current capacity, multiple actuator styles, and robust environmental protection in a sleek metal package. Here is why this switch series deserves a place on your BOM.
1. Series Overview: Small Footprint, Big Capabilities
The SCJ160 series is engineered for applications where space is limited but performance expectations are high. With a precise 16mm mounting hole diameter (16″x16.2mm) , these switches fit into dense panel layouts while maintaining the electrical specifications typically found in larger 22mm switches.
| Key Specification | SCJ160 Series Performance |
|---|---|
| Mounting Hole | 16″x16.2mm |
| Switching Voltage | 1.5V~250V AC/DC |
| Resistive Loads (DC) | 12V/24V 10A (DC-13) |
| Resistive Loads (AC) | 110V/250V 15A (AC-15) |
| Inductive Loads (AC) | 110V/250V 4A (AC-15) |
| Rated Heating Current | 15A @ 250VAC (Ith) |
| Waterproof Rating | IP65 standard, IP67 optional |
| Ambient Temperature | -30°C ~ 85°C |
2. Electrical Performance That Exceeds Expectations
2.1 High Current Handling
Despite its compact 16mm size, the SCJ160 series delivers impressive power switching capabilities:
10A DC at 12V/24V for resistive loads
15A AC at 110V/250V for resistive loads
4A AC for inductive loads at industrial voltages
This makes it suitable for direct control of small motors, solenoids, lighting circuits, and power supplies without the need for intermediate relays.
2.2 Versatile Voltage Range
With a switching voltage range spanning from 1.5V to 250V AC/DC, these switches bridge the gap between low-voltage electronics and line-voltage industrial equipment—reducing inventory complexity for multi-voltage applications.
2.3 Rated Heating Current (Ith)
The 15A rated heating current at 250VAC ensures stable thermal performance during continuous operation, preventing contact degradation over time.
3. Environmental Protection: Built for Harsh Conditions
3.1 IP65 Standard, IP67 Optional
The SCJ160 series offers flexibility in environmental protection:
IP65 (Standard): Complete dust protection and protection against water jets—suitable for most industrial indoor applications
IP67 (Optional): Protection against temporary immersion in water—ideal for outdoor equipment, marine applications, and washdown environments
3.2 Material Options for Corrosion Resistance
Choose the housing material that matches your environmental requirements:
SUS304 Stainless Steel: Excellent general-purpose corrosion resistance
Brass Nickel-plated: Enhanced conductivity with attractive appearance
Aluminum Alloy Anodized: Lightweight with superior wear resistance
The actuator button features PC & SUS316 construction, combining impact-resistant polycarbonate with marine-grade stainless steel for maximum durability in corrosive environments.
4. Design Flexibility: Multiple Actuator Styles
The SCJ160 series offers three distinct actuator profiles to match different application requirements and operator preferences:
| Code | Actuator Type | Best Application |
|---|---|---|
| P | Flat Head | Flush-mounted, prevents accidental actuation—ideal for reset functions or safety-critical controls |
| G | High-head | Raised profile for easy operation, even with gloved hands—perfect for start/stop stations |
| Q | Ball Button | Distinctive spherical design for visual differentiation and tactile feedback |
5. Illumination Options for Clear Status Indication
5.1 LED Voltage Range
The SCJ160 series supports a wide range of LED operating voltages to match your control system:
AC/DC Options: 3.3V, 6V, 9V, 12V, 24V, 36V, 48V, 110V, 220V
LED Current: 2mA~20mA (adjustable for brightness control)
5.2 Glowing Colors
Available in multiple illumination colors for intuitive status indication:
Standard Colors: Red, Green, Yellow, Blue, White
Custom Colors: Available upon request for specific branding or signaling requirements
The single-color illumination provides clear visual feedback of equipment status—green for run, red for fault, yellow for standby, etc.
6. Precision Engineering for Reliable Operation
6.1 Contact System
Contact Material: Silver tin oxide alloy—superior to standard silver contacts for reduced arcing and extended life
Contact Resistance: <50mΩ ensures minimal power loss and heat generation
Electrical Life: >30,000 cycles under full rated load
6.2 Mechanical Characteristics
Operating Force: Approximately 2.5–4N—optimized for positive actuation without operator fatigue
Button Travel: 3mm total travel with 1.5mm contact stroke—provides clear tactile feedback
Operating Modes: Self-locking (maintained) or self-resetting (momentary)—select based on your control logic
6.3 Insulation and Safety
Dielectric Strength: >100MΩ @ 500VDC/h—excellent insulation resistance
Compressive Strength: 2500VAC between pins and housing for 20mA/min—ensures operator safety
Base Material: Modified Nylon PA66—high-temperature resistant with superior electrical properties
7. Terminal and Wiring Details
The SCJ160 series features standardized pin configurations for easy integration:
Switch Pin: 2.8 x 0.5mm quick-connect terminals
LED Pin: 2.8 x 0.5mm separate terminals for illumination
Switch Combination: I/O (SPST-NO)—normally open configuration for simple on/off control
The separate switch and LED pins allow for independent wiring of the power circuit and indicator light, providing flexibility in control system design.
8. Application Examples
8.1 Industrial Control Panels
Machine start/stop stations
Conveyor system controls
Emergency stop backup (with proper safety circuit design)
8.2 Medical Equipment
Diagnostic device controls
Patient bed adjustments
Laboratory instrument interfaces
8.3 Marine and Offshore
Navigation light controls
Bilge pump switches
Communication equipment
8.4 Food Processing
Washdown-resistant controls
Packaging machine interfaces
Sanitary production line stations
8.5 Public Access Equipment
Vending machines
Ticketing kiosks
Access control systems
9. Quality and Manufacturing Standards
Manufactured by Wuhan Sukeji Intelligent Technology Co., Ltd., the SCJ160 series undergoes rigorous quality control:
Precision machining with tolerances as tight as ±0.05mm
100% electrical testing before shipment
Material traceability for all critical components
Compliance with international standards for industrial controls
Conclusion: The 16mm Solution That Thinks Big
The SCJ160 Series Metal Push Button Switches prove that great things come in small packages. With industrial-grade current ratings, multiple actuator styles, IP65/IP67 environmental protection, and versatile illumination options, this series delivers the performance and reliability required for today’s demanding applications.
Whether you are designing compact medical devices, rugged marine equipment, or high-volume industrial machinery, the SCJ160 series provides the perfect balance of size, power, and durability.
