High quality durable plastic waterproof explosion proof push button switch with key

 Ex mark:  Ex II 2G Ex de II C
Intended use:  zone 1&2
Ambient temperature:   -55°C≤Ta≤60°C
Degree of protection:   IP20/IP66 with operators
Contact type:    1NC/1NO, 2NC,2NO, and others 
Rated voltage:   250V/250V/110V/24V
Regimentation use:   AC12,AC15/DC13,DC13
Rated current:    16A/10A/0.5A/1A
Mechanical life:    1,000,000 times
Board front mounting rail type mounting:     May be held on mounting rails TS35*7.5 or with screws
Board back type mounting:    On 1-6mm panel
Meet the standard:    IEC60079/EN60079