【Parameter】: This is a trailer switch controller suitable for large cranes. The rated contact current: 2A-5A, working voltage: 250V-500V, head IP protection level: IP54, size: 31.5*7.6cm, button color: black leucorrhea emergency stop. 【High -quality materials】: The control switch uses high -quality ABS plastic, which is effective insulation, waterproof, difficulty in aging, small size, light weight, high and low temperature resistance, durable, longer service life. 【Emergency stop switch】: There are 2 control buttons and an emergency stop button, black and white buttons, sensitive and rapid reaction. It can help you maintain control during the crisis and avoid accidents. 【Easy to use】: The crane controller has 2 buttons with 2 buttons, safe and reliable, convenient to use, comfortable grip, and can operate with one hand. 【Professional manufacturing】: High -quality electronic components are used inside, professional manufacturing, stable performance, and high reliability. It can be used safely on outdoor, dusty, rainy days and snow. You can buy with confidence.