Keyed Emergency Stop Button

The Yijia Keyed Emergency Stop Button is a high-precision safety interlock device designed for industrial environments that require controlled reactivation protocols. Produced by Yijia Industrial Electrical Co., Ltd., this emergency stop button ensures that machinery remains de-energized until an authorized operator resets it using a physical key. This key-operated locking system provides an additional layer of safety, preventing accidental or unauthorized machine restarts, making it essential for complex automation lines and high-risk operations.

Technical Parameters and Material Specifications

Core Functional Value and Safety Mechanism

Controlled Reactivation via Physical Key: The key ensures only authorized personnel can reset the emergency stop, preventing hidden restarts during maintenance.

Superior Conductivity and Longevity: Silver alloy contacts and brass pins keep contact resistance low (≤ 50mΩ) over 100,000 electrical cycles, ensuring reliable signal transmission.

Robust Engineering for Heavy Industry: Durable engineering plastics or metal shells withstand vibrations and environmental stress in power plants, distribution boxes, and industrial control cabinets.

Industrial Applications

• Automated Production Lines: Prevents unauthorized restarts in multi-stage manufacturing.
• Power Generation Facilities: Maintains safety in high-voltage control systems.
• Public Infrastructure: Elevators, escalators, and pumping stations requiring restricted access.
• Heavy Machinery: Lathes, milling machines, and hydraulic presses.

Manufacturing Advantages of Yijia Industrial Electrical

Direct Factory Production: Yijia produces relays, AC contactors, and push button switches at large scale, selling directly to global customers for authentic and factory-tested products.

Advanced Quality Management: ISO9001-certified factory with modern management systems ensures mechanical durability and electrical reliability.

Customization (OEM/ODM) Support: Custom mounting dimensions, symbols, and shell materials (including stainless steel) are supported.

Procurement Guidance

Selection criteria for the Keyed Emergency Stop Button include:

• Installation dimensions (16mm or 22mm)
• Load current requirements (5A, 10A, etc.)
• Contact structure (1NO1NC or 2NO2NC)
• Environmental protection (waterproof or dust-proof sockets)

Features & Benefits

● 22mm mounting hole size

● engineering plastic

● Brass pins

● 10A current capacity

● Multi contact structure

● High-quality silver alloy contact 

● Lower contact resistance≤50mΩ

● 1,000,000 cycles long mechanical life

● 100,000 cycles long electrical life

● CCC,CE

● Support to button switch OEM/ODM

● Offer push button switch price list

How to select the appropriate type of metal push button

Please answer the following question, and send it to us, we will select the appropriate type for you.

Question&Example

① the dimensions of push button to install: 16mm.

② the load current you need to control: 5A.

③ the type of head part: plat head without light.

④ choose the contact structure: 1NO1NC/2NO2NC

⑤ Operation mode: Momentary or Latching.

⑥ LED volt and color(if need led): DC 24V GREEN.

⑦ choose the materials of shell: Stainless steel or Brass clad chromium.

⑧ special request: waterproof, Custom symbol, need socket...