Keylock Push Button Switch - 2-Position

This keylock push button switch features a 2-position stay put mechanism. It is designed for controlling circuits with AC voltage up to 660V and DC voltage below 400V.

LAY4-BG21 electrical switch keylock push button switch 2 position with key - Image 1

Technical Specifications

Product Overview

Keylock Push Button Switch

The LAY4-BG21 series is a professional-grade keylock push button switch designed for secure industrial control applications. Constructed with a durable zinc alloy body and high-grade anti-flame plastics, it ensures longevity and reliable performance in demanding environments. This 2-position switch provides enhanced security, making it ideal for controlling circuits in distribution cabinets, power stations, and communication networks.


Close up of the keylock switch mechanism
The key-operated mechanism provides secure, controlled switching for industrial environments.

Electrical Ratings

Rated Insulation Voltage

600 V
Rated Insulation

Conventional Heating Current
10 A
Pf Withstand Voltage
AC 2.5KV/min

Performance Specifications

Key Performance Metrics

ParameterValue
Insulation Resistance≥50MΩ
Contact Resistance≤25mΩ
Voltage Wave±20%
Brightness60cd/m2

Mechanical Life
500000 cycles
Electrical Life
250000 cycles

Certifications & Compliance

Standards

GB/T14048.1IEC60947-5-1

Certifications
CEISO 9001ROHSUL

Technical Details

Mounting Specifications

  • Mounting thread: M22
  • Max panel thickness: 6mm
  • Keylock diameter: 28.7mm
  • Overall height: 43mm
  • Base width: 32.3mm

Technical diagram of keylock switch dimensions and contact configurations
Dimensional specifications and contact configuration options for the LAY4-BG21 series.

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