Features: 1) SVR over/under voltage relays is a new type high-tech patented product employing digital integrated circuit of large scale2) It is mainly applied in the circuit with AC being 50/60Hz and rated voltage being below 250V, and is to provide relay protection for single-phase electromotor of over-high voltage and over-low voltage3) It is surely a good partner with which electromotor can work in great safetySpecifications: 1) Optional protection for over-high voltage2) Optional protection for over-low voltage3) Wide range of surrounding temperature: -25oC - 65oC4) No effect from load current intensity, laden nature, impulse and etc.5) Measures up to GB/T14084.5 EQV IEC60947-1:1999 standard 6) Unique encapsulation ensures monitor to work under high humidity7) 20 outputs with control and alarm8) Directly independent installment or HT 35 guideway installment producing area:China payment:T/T, L/C supplying capacity:100,000pcs/month