Wenzhou Ginri Power Automation Co., Ltd.
Wenzhou Ginri Power Automation Co., Ltd.
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GINRI Voltage Monitoring Relay DC Over/Under Voltage Relay DVRD
Features:
Protective Functions
Applications
| Model | DVRD | |||||||||||||||
| Input circiut =measuring circuit | DC supply | |||||||||||||||
| Rated voltage | DC12V.DC24V.DC36V,DC48V | |||||||||||||||
| Monitoring functions | Overvoltage,undervoltage | |||||||||||||||
| Voltage setting range |
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| Tripping delay time | 0.1~15s adjustable | |||||||||||||||
| Voltage hysteresis | 3-5% fixed | |||||||||||||||
| Reset delay time | 100ms | |||||||||||||||
| indicators | normal,trip | |||||||||||||||
| Output contacts | 2C/O | |||||||||||||||
| Contact capacity | 6A,250VAC/30VDC(resistive load) | |||||||||||||||
| Degree of protection | IP20 | |||||||||||||||
| Working conditions | -25℃~65℃,≤85%RH,non-condensing | |||||||||||||||
| Mechanical durability | 1000000 cycles | |||||||||||||||
| Dielectric strength | >2KVAC 1min | |||||||||||||||
| Weight | 130g | |||||||||||||||
| Dimension(HXWXD) | 79X23X79mm | |||||||||||||||
| Mounting | Din rail |
Also known as loss of voltage protection and undervoltage protection. A protection measure that automatically disconnects the circuit when the supply voltage disappears or falls below a certain value. Its function is to avoid accidents caused by the sudden start of the device when the voltage is restored; and to avoid damage due to the bare operation at low voltage. At low voltage, the equipment can only maintain its operation when the current is increased. The current increases, and the heating temperature is naturally intensified. If it is light, it will damage the equipment and cause fire. For important protection objects, the device consists of voltage relays, time relays and circuit breakers, and the protection performance is relatively accurate. For general low-voltage equipment, common fuses, contactors and loss-of-voltage (undervoltage) trip units are used as protection devices.