SZW26-20/D101.1YS Three-Position Single-Pole Locking Changeover Switch
This product is a three-position single-pole electronic locking changeover switch, featuring a "1-0-2" three-position structure and a rated current of 20A. It is suitable for AC 50-60Hz/440V or DC 240V circuits, enabling the switching of a single power source between two loads (position 1 connects 1-2, position 2 connects 3-4), with the middle "0" position serving as a safety disconnect point.
Safety and Structural Features:
Electronic Locking Function: The key can be removed for locking in the disconnected ("0") position; it can also be customized to lock in any other position as needed, effectively preventing unauthorized or accidental operation and achieving high-level safety management and access control.
Core Structure: Features a flame-retardant casing, silver alloy contacts, and thickened copper conductors to ensure the reliability and durability of electrical connections.
Technical Parameters:
Mechanical Life: ≥10⁵ cycles
Electrical Life: ≥3×10⁴ cycles (operating frequency 120 times/hour)
Operating Environment: Temperature -25℃~+40℃, altitude ≤2000m
Main Application Scenarios:
Suitable for critical applications requiring electronic access control and mandatory safety isolation, such as authorized operation and maintenance isolation systems in power and chemical industries. Power switching in data centers and laboratories with strict operational access control requirements. Power selection and safety interlock control for critical equipment in production lines.
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