XB2-EG Reset Self-locking Two Three Position Knob Rotary Switch

The XB2-EG Reset Self-locking Two Three Position Knob Rotary Switch is a modular key-operated rotary switch, available in 2-position and 3-position configurations, with self-locking (latching) functionality to maintain stable operation after rotation. The key-operated design is the core highlight—only authorized personnel with the matching key can operate the switch, effectively avoiding misoperation, tampering, or unauthorized use of equipment. With a standard 22mm mounting hole, it enables quick and seamless installation on all types of industrial control panels, reducing installation time and labor costs.

Crafted with a rugged, compact structure and high-quality internal components, the switch supports flexible contact configurations (1NO, 1NC, 1NO1NC, 2NO) to match diverse control logic requirements. It is designed to withstand frequent operation in harsh industrial environments, including dust, humidity, and moderate vibration, ensuring long-term reliable performance for critical control systems.

Product Feature

1. Enhanced Security with Key-Operated Mechanism

The integrated key control design ensures that only authorized personnel can operate the switch, preventing unauthorized access and accidental activation of equipment—an essential feature for applications requiring strict security management such as power distribution, industrial machinery, and restricted control systems. The key can only be removed in the "off" or designated position, further ensuring operational safety and preventing misplacement of the key.

2. Modular & Flexible Configuration: The series features a modular structure, allowing easy combination and replacement of contact blocks without disassembling the entire switch. This design simplifies maintenance, reduces downtime, and enables flexible configuration of contact types (1NO, 1NC, 1NO1NC, 2NO) to meet specific project requirements, enhancing operational flexibility and cost-effectiveness.

3.Stable Self-Locking Function: Equipped with a reliable self-locking mechanism, the switch maintains its position after rotation, avoiding accidental reset and ensuring stable equipment operation without continuous manual intervention. This is particularly suitable for long-term status control and mode switching in industrial systems.

4. Ergonomic & Intuitive Operation: The rotary knob features a smooth, ergonomic design with clear tactile feedback and a distinct "click" sound during rotation, allowing operators to confirm successful position switching at a glance. The key is designed for comfortable grip and easy rotation, reducing operational fatigue during frequent use. Multiple key configurations are available to prevent cross-use between different equipment.

Model Classification

The XB2-EG Reset Self-locking Two Three Position Knob Rotary Switch a range of models with 2-position and 3-position configurations, catering to diverse application needs. The most commonly used models are listed below:

- 2-Position Models:

- XB2-EG21: 2-position (90°rotation), key-operated, self-locking, 1NO contact configuration, suitable for simple on/off control and access-restricted start/stop scenarios.

- XB2-EG25: 2-position (90°rotation), key-operated, self-locking, 1NO1NC contact configuration, ideal for control circuits requiring both signal input and status feedback.

- XB2-EG41: 2-position, key-operated, self-locking, 1NO contact configuration, with a plastic bezel for cost-effective applications.

- XB2-EG45: 2-position, key-operated, self-locking, 1NO1NC contact configuration, suitable for general industrial control with basic security requirements.

- 3-Position Models:

- XB2-EG33: 3-position (120° rotation), key-operated, self-locking, 2NO contact configuration, ideal for multi-mode switching (e.g., Auto-Manual-Stop) in complex control systems.

- XB2-EG53: 3-position (120° rotation), key-operated, self-locking, 2NO contact configuration, suitable for multi-speed regulation and mode selection of industrial equipment.

- XB2-EG03: 3-position, key-operated, self-locking, 2NO contact configuration, designed for high-reliability applications in harsh environments.

Product Application

With its enhanced security, stable performance, and flexible configuration, the XB2-EG Reset Self-locking Two Three Position Knob Rotary Switch is widely applied in various industrial fields that require strict access control and reliable circuit regulation, including but not limited to:

- Industrial Automation: Conveyor belts, assembly lines, robotic arms, packaging machinery, and automated production lines (mode switching, access-restricted start/stop control).

- Mechanical Equipment: Machine tools, lathes, milling machines, textile machinery, printing machinery, and plastic machinery (operation control, safety lockout, multi-speed regulation).

- Electrical Control Systems: Distribution cabinets, control panels, power supply control, relay control circuits, and PLC control systems (main power control, access-restricted operation).

Technical Parameters