Key Selector 3A with Zinc-Alloy Cylinder | Dual-Combination Access Control Switch
Product Overview
This double-layer mechanical combination lock box switch achieves unprecedented graded security and access control through an independent dual lock core system. The outer lock core offers up to 1000 adjustable password combinations for daily or basic access; the inner lock core provides an additional 81 independent combinations for core management or emergency override. The product features an aluminum alloy body and powder-coated panel, with silver-plated contacts and terminals in key electrical connection areas to ensure excellent conductivity and corrosion resistance. Its 16A rated current and 1500V AC dielectric strength make it a professional choice for demanding industrial environments requiring complex access control and reliable electrical performance.
Key attributes
Model: 16019-3A
Dimensions: L16.2W12.3H4.6cm (L162 x W123 x H46 mm)
Combinations: External Cylinder 1-1000 combinations available, Internal Cylinder 1-81 combinations available
Rated Load: Maximum operating current: 16A
Insulation Resistance: 100MΩ Min
Dielectric Strength: 1500VAC (50-60HZ)
Materials: Aluminum alloy material, Zinc-alloy cylinder, Metal keys, Powder coating aluminum alloy plate, Silver plated contacts and terminals
Additional Features: Terminals and Grounding
FAQs
1. What is the key advantage of the dual-layer combination design?
This model features independent external and internal mechanical lock cylinders. The outer cylinder provides up to 1000 combinations for daily operation, while the inner cylinder offers 81 combinations for management or emergency override, enabling graded access control.
2. What types of applications is the Key Selector 3A suitable for?
It is designed for industrial and commercial environments requiring complex access control, such as high-power motor systems, industrial doors, machinery control panels, and restricted-area equipment.
3. What electrical load can the switch handle?
Model 16019-3A supports a maximum operating current of 16A, making it suitable for controlling higher-load circuits in industrial control systems.
4. How does the product ensure electrical safety and reliability?
The selector provides insulation resistance of at least 100 MΩ and dielectric strength of 1500 VAC (50–60Hz), ensuring reliable electrical isolation and compliance with safety standards.
5. What materials are used to ensure durability in harsh environments?
The product features an aluminum alloy body, zinc-alloy lock cylinders, powder-coated aluminum alloy panel, and silver-plated contacts and terminals for excellent corrosion resistance and stable conductivity.
6. Is installation suitable for professional control systems?
Yes. The unit includes dedicated terminals and a grounding connection, allowing easy integration into industrial control panels and access-controlled electrical systems.
