The YJ-GQ19BF-11Z/S is a 19 mm metal latching push button switch designed for reliable operation in industrial and harsh environments. Featuring a stainless steel housing, clear tactile feedback, and a self-locking mechanism, this switch is ideal for control panels, automation equipment, and outdoor applications.

🔹 Key Features

• Standard 19 mm mounting hole, easy integration and replacement

• Latching (self-locking) mechanism – press to latch, press again to release

• 1NO + 1NC contact configuration for flexible control logic

• IP67 protection rating 

• Stainless steel flat head design, durable and corrosion-resistant

• Long mechanical and electrical life, suitable for frequent operation

• Certified with CCC / TUV / CE, compliant with RoHS requirements

⚙️ Technical Specifications

Operating Conditions

• Altitude: ≤ 3000 m

• Operating temperature: -30 °C to +70 °C (non-freezing)

• Storage temperature: -40 °C to +80 °C

• Ambient humidity: 45%–90% RH

Electrical Characteristics

• Rated insulation voltage (Ui): 250 V

• Conventional thermal current (Ith): 5 A

• Dielectric strength: 1500 V AC, 50 Hz

• Insulation resistance: ≥ 1000 MΩ

• Contact resistance: ≤ 50 mΩ

Contact Configuration

• Contact type: 1NO + 1NC

• Utilization categories: AC-12 / AC-15 / DC-12 / DC-13

Rated Load

• AC-12:

  • 220 V / 3 A

  • 110 V / 5 A

• AC-15:

  • 220 V / 2 A

  • 110 V / 3 A

• DC-12:

  • 24 V / 5 A

• DC-13:

  • 24 V / 0.7 A

Service Life

• Electrical life: ≥ 100,000 operations

• Mechanical life: ≥ 500,000 operations

🧱 Materials

• Contacts: Silver alloy

• Terminals: Brass

• Housing: Stainless steel

• Actuator (button): Stainless steel

• Base: PA66 engineering plastic

🔌 Installation & Wiring

• Mounting hole diameter: Ø19 mm

• Terminal type: Solder terminals (2.8 × 0.5 mm)

• Standard COM / NO / NC pin layout for easy wiring

🏭 Typical Applications

• Industrial control panels

• Power distribution equipment

• Automation and machinery

• Outdoor control enclosures

• Energy and utility systems

• Instrumentation and medical equipment

Dimension