ZHUCO SZW26X-10C/D202.2Y 1-0-2 Three-position two-section compact locking single-hole mounting changeover switch

The SZW26X-10C/D202.2Y is a miniaturized, three-position (1-0-2), two-section rotary selector switch with integrated mechanical locking function and convenient single-hole mounting. Its compact structure makes it suitable for control panels with limited space.
Key Parameters and Features
Electrical Specifications: Rated operating voltage AC 440V (50/60Hz) / DC 240V, rated current 10A.
Contact Configuration: Provides two independent double-throw switching circuits.
Position 1: First circuit connected (contacts 1-2 and 5-6).
Position 0 (Middle position, lockable): All contacts are completely disconnected. This position activates the built-in mechanical lock to prevent accidental operation.
Position 2: Second circuit connected (contacts 3-4 and 7-8).
Structure and Installation:
Compact Design: Small size saves panel space.
Single-Hole Mounting: Secured to the panel via a threaded back and nut, requiring only one mounting hole for easy installation.
Locking Function: Can be locked in the middle "0" (OFF) position using a key or tool to prevent unauthorized operation and enhance equipment safety.
Contacts and Materials: Uses silver alloy contacts and thickened copper components to ensure reliable conductivity and long lifespan at 10A current.
Environmental Adaptability: Operating temperature range -25°C to +40°C, altitude ≤ 2000 meters. Meets general industrial environment requirements.
Lifespan: Mechanical life ≥ 100,000 cycles; Electrical life ≥ 30,000 cycles (under rated load).
Application Scenarios
This switch is designed for applications requiring limited installation space, operational safety, and mode selection or power switching in low-current circuits.
Small Equipment Control: Used in control panels of instruments, testing equipment, communication cabinets, and small automation devices for safe switching between modes such as "manual/automatic," "local/remote," and "power source A/power source B."
Control Circuit and Signal Switching: Suitable for backup manual operation in PLC control systems, signal source selection in instrument measurement circuits, or function selection in low-voltage control circuits. Safety Isolation and Locking: Its lockable "0" position provides a safe electrical isolation point for equipment debugging and maintenance, meeting simple safety operation requirements.
Space-Constrained Applications: It is an ideal alternative to traditional, larger or multi-hole mounted changeover switches, especially suitable for compact enclosures, portable equipment, or high-density control cabinets.