3-Pack Mechanical Tamper Switch – NC Plunger, Metal Housing
3-Pack Mechanical Tamper Switch – NC Plunger, Metal Housing
Mechanical Tamper Switch 3-Pack – Normally Closed Plunger Contact, Metal Housing, Screw Mount
Keep your security enclosures, alarm panels, and control cabinets protected with this reliable set of 3 Mechanical Tamper Switches. Featuring a normally closed (NC) plunger contact design and a rugged metal housing, these switches instantly signal an alert the moment an enclosure door or cabinet lid is opened — giving you continuous, passive monitoring without any extra wiring complexity.
Made in Mainland China.
Key Features
- Normally Closed Design: The circuit remains closed when the plunger is depressed (door closed) and opens when the door is opened, triggering your alarm or monitoring system immediately.
- Indoor-Optimized Reliability: Engineered for stable, consistent performance in indoor security cabinet, control panel, and alarm enclosure applications.
- Quick Screw Mount Installation: Each switch includes mounting screws and nuts for fast, secure installation — minimizing downtime during setup or maintenance.
- Durable Metal + Plastic Construction: The combined metal housing and plastic body ensures long-lasting resilience even under frequent use in demanding industrial or commercial environments.
- Versatile Application: Ideal for security cabinets, locking enclosures, alarm doors, access control systems, and control room panels in offices, warehouses, and industrial facilities.
- Low-Voltage Compatible: Suitable for low-voltage security and alarm systems — easy to integrate into existing setups.
Specifications
- Type: Mechanical Tamper Switch (Plunger Contact)
- Circuit Mode: Normally Closed (NC)
- Housing Material: Metal + Plastic
- Mounting Style: Screw Mount
- Color: As Shown
- Quantity: 3 × Tamper Switches
Package Contents
- 3 × Mechanical Tamper Switches
- 9 × Screws
- 9 × Nuts
Note: Due to light reflection and different display settings, the color of the item may appear slightly different from the actual product. Measurement tolerance is ±1–3 cm.
Related Products You May Like
- 1pc Precision Japanese Double-Edged Hand Saw – SK5 Steel, Fine-Toothed
- 10Pcs Wooden Handle Nylon Bristle Paint Brush – Hand Tool Set
- 1pc Professional Heavy-Duty Pruning Shears with Anti-Slip Handle
Learn more: OSHA on personal protective equipment
Frequently Asked Questions
Q: What does "normally closed" mean for this tamper switch?
A: A normally closed (NC) tamper switch keeps the electrical circuit closed when the plunger is pressed in (i.e., the door or panel is shut). When the door opens and releases the plunger, the circuit opens, triggering the connected alarm or monitoring system. This is the standard configuration for security enclosure and alarm door applications.
Q: What types of enclosures or doors is this tamper switch compatible with?
A: This mechanical tamper switch is compatible with a wide range of indoor applications, including security cabinets, alarm enclosures, control panels, locking cabinet doors, and access control setups in offices, warehouses, and control rooms. It uses a standard screw mount, making it easy to fit on most flat surfaces.
Q: How difficult is the installation process?
A: Installation is straightforward. Each switch comes with 3 screws and 3 nuts, allowing for secure and quick screw-mount installation. Simply position the switch so the plunger makes contact with the door or panel when closed, then wire it into your low-voltage alarm or security circuit. No specialized tools are required.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.