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0-1000VDC DC Ground Fault Relay Insulation Resistance Monitor for It System
| Price | $90.00 |
|---|---|
| Min Order | 1 Piece |
| Availability | In Stock |
| Shipping From | Chongqing, China |
| Popularity | 293 people viewed |
Model NO.:
ZJJ-4SC
Theory:
Electromagnetic Relay
Usage:
Insulation Monitor
Phase:
3
Electricity Type:
Dc
Number of Pole:
3
Load:
Medium Power Relay
Protective Characteristics:
Enclosed Relay
Action Principle:
Electromagnetic Type
Size:
Miniature
Type:
Electric Parameter Relay
Testing Voltage:
30 to 500V
Operating Temperature:
20
Measuring Range:
500V
Dimensions:
170X110X150mm
Accuracy Class:
±3%
Trademark:
OEM
Transport Package:
Please Consult for Details
Specification:
10*10cm
Origin:
Zhejiang, China
Product Description
The ZJJ-4SC DC insulation relay adopts a fully static circuit with a high-sensitivity grounding resistance monitoring and display circuit, which helps users make a quantitative assessment of the reduction of the insulation degree of the DC bus bar, and monitors the grounding resistance of the positive and negative bus bars online in real-time. When the ground insulation drops to the set value, the relay sends out a warning signal.
The relay adopts a full hardware divider operation circuit to directly display the grounding resistance value, and the alarm threshold value is also directly adjusted and displayed on the panel. ZJJ-4SC adopts guide rail installation, with ultra-small size of 115mmX90mmX40mm, dry contact alarm output. The monitoring voltage value can be as wide as 48-1500v and is not affected by the fluctuation of the measured voltage. It is widely used in DC speed regulating motors, solar power generation, and other fields.
* LCD--Positive and negative bus bar grounding resistance values
* Alarm resistance threshold online display and direct setting;
* The short-circuit grounding current is extremely small to ensure safe operation;
* Wide monitoring voltage, 48-1500V, working voltage 24-220V can be customized;
* Terminals are pluggable for easy maintenance and replacement
* Guide rail structure, reinforced shell, modular structure, high reliability.
Input voltage | DC220V |
Operating voltage range | 100~350V |
Resistance range | 0~1999KΩ |
Short circuit ground current | Max 0.6mA |
Accuracy | 5% |
Alarm setting range | 0~999KΩ |
Return coefficient | 95%~98% @ Rs=50KΩ |
Output contact capacity | DC 220V 0.2A |
AC 250V 2A | |
Power supply | 7~10mA |
Operating temperature | -40~70 |
Dimensions | 115mm x 90mm x 40mm |
Please consult for details
* DC speed regulating motor
* Solar power generation and other fields
* DC or AC/DC main circuits
* UPS systems, battery systems.
* IT systems with high leakage capacitances
* DC charging stations for electric vehicles.
* Solar power generation and other fields
* DC or AC/DC main circuits
* UPS systems, battery systems.
* IT systems with high leakage capacitances
* DC charging stations for electric vehicles.
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