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NYKB series low-voltage terminal power distributor

NYKB2 series "phase wire + neutral wire" circuit breaker

It applies to low-voltage terminal power distribution of residential buildings, industrial buildings, architecture and other fields
With functions of overload, short-circuit protection, control and isolation
It can cut off phase and neutral wire at the same time, but not provide protection functions for neutral wires

NYKB2L "phase wire + neutral wire" electronic leakage protection circuit breaker

It applies to low-voltage terminal power distribution of residential buildings, industrial buildings, architecture and other fields
With functions of overload, short-circuit, isolation and leakage protection
It can cut off phase line and neutral line at the same time
Provide protection for insulating fault of electric equipment
Provide physical protection for direct contact; provide supplementary physical protection for indirect contact

NYKB1 small circuit breaker

NYKB1 small circuit breaker protect overload and short-circuit of low-voltage terminal power distribution wiring and electric equipment, namely, it can use infrequent making and breaking operation

NYKB1L electronic leakage protection circuit breaker

Inside electric equipment, when there’s fault in electric equipment, current goes from line to earth then back to power source, this type of current is called as earth fault current. Earth fault current is very dangerous. Its danger degree depends on fault current area and surrounding environment conditions. If earth fault current inside equipment continues for a log time, that will lead to fire disaster, even can cause death.
Electronic leakage protection circuit breaker is a earth fault protection device with very wide application scope. Based on different protection demands, it can provide protection products with 30mA, 50mA and different action values. Using zero sequence current transformer and integrated amplifier circuit enables a higher sensitiveness of NYKB1L electronic leakage protection circuit breaker.
NYKB1L electronic leakage protection circuit breaker can realize:
• Physical protection for indirect contact
• Supplementary physical protection for direct contact
• Protection for insulation fault of electric equipment