SZW26-20/B101.1 Three-Position Automatic Reset Changeover Switch (Single Pole) This product is a single-pole, three-position automatic reset changeover switch, using an ON-(OFF)-ON operation mode. It has a rated current of 20A and is suitable for circuits with AC 50/60Hz, a rated operating voltage of ≤440V, and a rated insulation voltage of 690V. When operating, rotating the handle to position "1" or "2" connects the first or second set of load lines (L) respectively; upon releasing the knob, the switch automatically resets to the middle "OFF" position due to the internal spring mechanism, achieving instantaneous on/off control of the circuit.
Technical Characteristics:
Structure: Features a flame-retardant, high-temperature resistant casing, built-in silver alloy contacts and thickened copper conductors, resulting in low contact resistance, strong oxidation resistance, stable conductivity, and safety and durability.
Lifespan: Mechanical life ≥ 3 × 10⁴ cycles, electrical life ≥ 6 × 10⁴ cycles (operating frequency 120 times/hour).
Operating Conditions: Ambient temperature -25℃ ~ +40℃, altitude ≤ 2000m, relative humidity ≤ 50% (40℃) / ≤ 90% (20℃), protection required in condensing environments.
Application Scenarios:
Suitable for applications requiring momentary, jog, or safety reset control, such as equipment jog debugging, instantaneous forward and reverse motor control, signal test switching, safety emergency stop reset, stage lighting control, etc., commonly found in distribution boxes, control cabinets, and various electrical control systems.
English
русский
Español
Deutsch














