Accessories & System Protection - Independent Power for solar, wind, batteries, inverter/chargers and low energy refrigeration products

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BATTERY MONITOR ACCESSORIES
AND
SYSTEM PROTECTION


In order to obtain reliable and accurate information from your batteries to display on your battery monitor, you require a Battery Shunt. A shunt is necessary in order to measure amps and amp-hours with the TriMetric battery monitor. A shunt is an accurate, very low resistance resistor which is placed "in line" with the wire carrying the current to be measured.

Also highly recommended as protection for your valuable power system are the MidNite Solar Surge Protection Devices (SPD's) or lightning protectors and the MidNite Solar DC Ground Fault Protection devices.

 
 

100SHUNT AND 500SHUNT

100A/100mV and 500A/50mV Shunts

A shunt is an accurate, very low resistance resistor which is placed "in line" with the wire carrying the current to be measured. With the TriMetric, it is usually placed in the negative line from the battery bank, such that all the current going into the battery (charging) or out (discharging) must pass through it. Connected in this way it will be set up to monitor "net" amp-hours in and out of the battery. The shunt needs to be placed near the batteries, since these cables carry very high currents. The cables from the batteries must be kept short to minimize electrical losses.




100A Shunt


500A Shunt

All About Shunts


 
 

MidNite Surge Protection Devices for Lightning Protection

The SPD is offered in three different voltages to maximize the required protection level. Protection is achieved by reducing the clamping voltage to a safe level that your system can sustain without damaging any electronics in the system. The MNSPD is designed to clamp a 115,000 amp surge! Blue LED’s provide visual indication of operation from a distance.

MNSPD115             115V DC Clamp 295V@100A current 8/20
μs
MNSPD300-DC        300V DC Clamp 775V@100A current 8/20
μs
MNSPD300-AC        300V AC Clamp 775V@100A current 8/20
μs
MNSPD600             600V AC Clamp 1290V@100A current 8/20
μs

 
 

MidNite DC Ground Fault Protection Devices

MidNite’s breakers are rated to break the full rated load at the rated voltage repeatedly, with NO DAMAGE. Always use a properly sized breaker for disconnecting.

MNDC-GFP63
63 amp 150VDC din rail mount DC ground fault protector (NRTL listed breaker assy).
Breaker Torque Value: 20 In-Lbs (2.3NM)

MNDC-GFP80
0 amp 150VDC panel mount DC ground fault protector (NRTL listed breaker assy)
1/2 amp trip mechanism connects between battery negative and earth ground
Breaker Torque Value: 30 In-Lbs (3.4NM)

All MidNite circuit breakers hold 100% rated current independent of ambient temperature.

 
 
 
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