Power supply:AC380±10%V 50±10%HZ
Custom 220V~660V,60HZ
Protection grade:IP67(1m underwater 30minutes)
Custom IP68(6m underwater 72hours)
Low temperature:-20~+60℃(Special -40~+70℃);
Ambient humidity:≤90%(+25℃);
Explosion-proof marks:Exd I、ExdibⅡBT4 and ExdibⅡCT4;
Working system:S2-15min short-time working system for IS on- off type
S4-25% intermittent working system for IM control type