FZN21-12 series indoor AC high-voltage vacuum load switchDetailed product description：

Scope of application
The FZN21-12D/630-20 indoor high-voltage load switch is suitable for use in three-phase AC 50Hz, rated voltage 12kV power supply networks, as a means of breaking load currents. Especially suitable for places that require oil-free, non maintenance, and frequent operation.
The FZN21-12D · R/125-31.5 indoor high-voltage load switch fuse combination is suitable for use in a three-phase AC 50Hz, rated voltage 12kV power supply network as a means of breaking load current, overload current, and short-circuit current. It is particularly suitable for places that require oil-free, non maintenance, and frequent operation. The load switch and combination device have obvious isolation faults and can be equipped with grounding knives and electric spring mechanisms with closing capabilities, enabling remote control.

Model and its meaning





FZN21-12 series indoor AC high-voltage vacuum load switch appearance and installation dimensions

1. Framework 2 Isolation knife 3 Fuse 4 Insulation rod 5 Upper bracket 6 Arc extinguishing chamber 7. Grounding knife static contact 8 Insulator 9 grounding knife
10. Grounding Spring 11 Knife switch spring 12 Insulation rod 13 Spindle 14 Release mechanism 15 Payshaft 16 Linkage rod 17 Operating mechanism
Load switch without fuse item (3) and trip mechanism item (14)

FZN21-12 series indoor AC high-voltage vacuum load switch main technical parameters 1. Main technical parameters of load switch

2. Technical parameters of composite electrical appliances

3. Technical parameters for assembly and adjustment of vacuum arc extinguishing chamber

4. Technical parameters of fuses equipped with composite electrical appliances

Ordering Instructions
1. Product model, name, specifications, and quantity; 2. Rated voltage and rated current; 3. Rated voltage of operating mechanism; 4. With or without grounding switch and fuse; 5. With or without an operation panel; 6. The name, specifications, and quantity of spare parts.