SZW26-20/D101.1Y Three-Position Single-Pole Lockable Changeover Switch. This product is a three-position single-pole padlockable 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, with the middle "0" position serving as a safety disconnect point.
Safety and Structural Features:
Safety Locking Function: Comes standard with two padlocks, allowing the key to be removed and locked in the "0" position (or other positions as required), effectively preventing unauthorized or accidental operation, meeting equipment maintenance, isolation, and safety management requirements.
Installation Method: Four-hole robust mounting, stable and reliable structure.
Electrical Materials: Uses flame-retardant housing, silver alloy contacts, and thickened copper conductors for stable conductivity, safety, and durability.
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 applications requiring mandatory safety isolation and access control, such as power switching and maintenance isolation in industrial distribution cabinets and control cabinets.
Lockout/Tagout (LOTO) safety procedures during equipment maintenance. Safe switching in test benches and motor control circuits.
Other critical control circuits where prevention of accidental or unauthorized operation is required.
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