SPD 2 Series 07 Circuit Breaker Operating Mechanism

1.Opening trip time: ≤ 28ms at rated voltage

2.Reliable tripping at 48% rated voltage

3.No tripping at 30% rated voltage

4.Mechanical endurance: ≥ 10,000 operations

5.Zinc-nickel alloy plating, salt spray resistance ≥ 300 hours

Model Composition and Meaning：

Operating Instructions

Charging Operation Check for transport damage. Mount mechanism on switch. Insert handle into lower right part, turn clockwise (or energize motor) until a “click” is heard — charging complete.

Closing Operation Press close button — main circuit closes under spring force. For electric operation, energize closing coil. Mechanism closes and charges opening spring. Recharging allowed, but closing again is interlocked.

Opening Operation Press open button — main circuit opens under spring force. For electric operation, energize opening coil.