Molded Case Circuit Breakers for DC circuit (up to 1000VDC)
Feature
HDV series up to DC600V (63, 125, 250AF)
(1)DC high voltage
Applicable up to 600 VDC circuit at the maximum
※Applicable under designated wiring conditions
(2)Compact size
Contributing to downsizing of connecting boxes and current collecting box
NF63-HDV, NF125-HDV ： width 75mm
NF250-HDV ： width 105mm
(3)Workability and wire saving
Reverse connection possible
HDVA series up to DC750V (125, 250AF)
(1)DC high voltage
Applicable up to 750 VDC circuit at the maximum
※Applicable under designated wiring conditions
(2)Compact size
Contributing to downsizing of connection box and collector box
NF125-HDVA, NF250-HDVA ： width 105mm
(3)Workability and wire saving
Reverse connection possible
HDW series up to 3 poles：DC750V，4 poles：DC1000V (400, 800AF)
(1)DC high voltage
Applicable to 3 pole type DC 750 V, 4 pole type DC 1000 V circuit for large Power Conditioning System.
(2)Maximum rated current 800 A
(3)Workability and wire saving
Reverse connection possible
System Configuration
Installation example of industrial photovoltaic system
Photovoltaic Facilities
Connection Box, Collection Box
It is a board for collecting DC power generated by the solar cell module and supplying it to the power conditioning system.
A small circuit breaker / switch corresponding to DC circuit is installed.
Power Conditioning System
It inverts DC power generated by solar cell module into AC power that can be used at factories and homes.
Install a DC high voltage circuit breaker on the input side (DC circuit) and AC circuit breaker on the output side (AC circuit).
Voltage Boost System
It is a cubicle for boosting the output voltage from the power conditioning system to a voltage matching the system for the purpose of commercial electric power.
AC circuit breakers are installed.
Lineup
■DC MCCB Lineup
| 63 AF | 125 AF | 250 AF | 400 AF | 800 AF | ||
|---|---|---|---|---|---|---|
| DC voltage |
DC600V | NF63-HDV | NF125-HDV | NF250-HDV | NF400-HDW 3P(*1) | NF800-HDW 3P(*1) |
| DC750V | － | NF125-HDVA | NF250-HDVA | NF400-HDW 3P | NF800-HDW 3P | |
| DC1000V | － | － | － | NF400-HDW 4P | NF800-HDW 4P | |
(*1) These models can be used in DC 600V.