This is a user manual for NKK switches
This document serves as a comprehensive user manual for NKK manual switches. It details the operating characteristics, including momentary and latchdown actions, and provides guidance on selecting the appropriate switch type based on specific usage environments such as exposure to water, oil, dust, or hazardous gases.
The guide also addresses critical circuit design considerations, including spark quenching for inductive loads, wiring examples to prevent short circuits, and specific precautions for different load types like resistive, inductive, lamp, and motor loads. Additionally, it covers mounting and installation methods for various terminal types.
| Maximum Working Voltage | Generally the maximum rated voltage noted in the specifications for each series |
|---|---|
| Resistive Load Current | 80% or less of the rated current |
| Inductive Load Current | 1/2 - 2/3 of rated current at 125V AC |
It is necessary to use a special switch with gold ground on the contact area or one coated with gold plating to prevent oxidation or sulfurization.
It is recommended to use the type with a sliding contact mechanism, such as A, B, G, or D2 Series.
It is recommended to use switches with locking levers.