BZA1 (LA81) series mining explosion-proof control buttonDetailed product description：

·Scope and Application
The BZA1 series mining explosion-proof control button is suitable for controlling signals, contactors, electromagnetic starters, and other devices in coal mine underground AC 50Hz, voltage up to 127V lines with explosive mixtures of methane and coal dust.

·Model and meaning


·Main technical parameters of BZA1 (prototype number LA81) series mining explosion-proof control button:

Model, Specifications	Number of buttons (Only)	Rated Voltage （V）	Rated Current （A）	Maximum cable outer diameter （mm）	Dimensions L × W × H （mm）
BZA1-1	one	one hundred and twenty-seven	five	φ19	240×140×150
BZA1-2	two	one hundred and twenty-seven	five	φ19	240×165×150
BZA1-3	three	one hundred and twenty-seven	five	φ19	240×185×150