The handle flexibly connected to the door plate is connected with the connecting rod, which is installed on the circuit breaker, the middle of the connecting rod engages the swing plate, the lower part of the swing plate corresponds to the pin shaft, the spring on the pin shaft sleeve is inserted into the shaft sleeve, the shaft sleeve is fixed on the bending plate with bolts, the bending plate is fixed on the left and right plates, a boss on the pin shaft is pressed on the spring, and the lower end of the pin shaft is aligned with the small hole of the support plate on the switch cabinet body. The utility model has the advantages of simple interlocking mechanism, safety and reliability, and flexible drawer exchange.
The frame of MNS low-voltage switchgear is a combined structure, and the basic frame is assembled from C-type steel; Each cabinet body of MNS combined low-voltage switchgear is divided into three chambers, namely horizontal bus chamber (at the rear of the cabinet), drawer chamber (at the front of the cabinet), and cable chamber (at the lower part of the cabinet or at the right in front of the cabinet).
a: There is a small hole (lower right) next to the remote and local knob. Use a small screwdriver to extend into the small hole and press the baffle down.
b: There is a small hole on the left side of one-time closing. Similarly, use another small screwdriver to push it in and open it.
c: Unlock with two screwdrivers at the same time and open the drawer door.
d: Manually adjust the connecting rod in front of the primary switch (sometimes it can not be opened because the connecting rod is stuck) to disconnect the main switch.
e: Then confirm whether the mechanical connecting rod under the main switch has been released in place. If not, move it.
f: Unscrew the secondary switch button to the safe extraction position
g: Pull out the drawer, reset it and restore power transmission.
h: Only when the primary switch and the secondary switch are engaged in place, the drawer can be pulled freely and the switch can rotate smoothly.