| Model |
Dimensions(mm) |
Material |
Notes |
| DFY-1(Anti-electricity theft) |
A |
B |
a |
b |
Ф |
Bakelite |
3-phase 4-wire voltage circuit, one in and one out |
| 188 |
70 |
174 |
26.5 |
5 |
 |
| Model |
Dimensions(mm) |
Material |
Notes |
| DFY-1A(Anti-electricity theft) |
A |
B |
a |
b |
Ф |
PC |
3-phase 4-wire voltage circuit, one in and one out |
| 188 |
63 |
174 |
22.5 |
5 |
 |
| Model |
Dimensions(mm) |
Material |
Notes |
| DFY-2(Anti-electricity theft) |
A |
B |
a |
b |
Ф |
Bakelite |
3-phase 3-wire voltage circuit, one in and one out |
| 138 |
70 |
124 |
25.5 |
5 |
 |
| Model |
Dimensions(mm) |
Material |
Notes |
| DFY-2A(Anti-electricity theft) |
A |
B |
a |
b |
Ф |
PC |
3-phase 3-wire voltage circuit, one in and one out |
| 138 |
63 |
124 |
22.5 |
5 |
 |
| Model |
Dimensions(mm) |
Material |
Notes |
| DEY-1B |
A |
B |
a |
b |
Ф |
Bakelite |
3-phase 4-wire voltage circuit, one in and three out Same as above,with fuse |
| 237 |
65 |
223 |
- |
5 |
 |
| Model |
Dimensions(mm) |
Material |
Notes |
| DFY-3(PJ-1)withfuse DFY-3(PJ-1)without fuse DFY-3(PJ-1)transparent |
A |
B |
a |
b |
Ф |
PC |
3-phase 4-wire voltage circuit, one in and three out |
| 234 |
59 |
223 |
- |
5 |
 |
| Model |
Dimensions(mm) |
Material |
Notes |
| DFY-2B |
A |
B |
a |
b |
Ф |
Bakelite |
3-phase 3-wire voltage circuit, one in and three out |
| 188 |
70 |
174 |
25.5 |
5 |
 |
| The shape and installation drawing of the junction box |
 |
| Reverse view |
Overview
The electrical energy meteringioint junction boxis a specialized componentfor measuring electrical equipment, installing electricity meters electtical instuments,and protecting circuitbreakers in the secondary circuit. It has mulliple functions such as sate exchange and on-site verification of electricity meters,electrical instruments, and protective circuit breakers under load conditions.
Technical parameter
| Rated voltage |
380 V/220 V |
| Rated current |
5(20) A |
| Sectional area |
6 mm² |
| Power-frequency withstand voltage |
2500 V、1 min |
| Insulation resistance |
>100 MΩ |
Wiring example
 |
 |
| Combined wirina diaaram Ⅰ of DFY-1.DFY-1A tvpe three-phase four-wire terminal block with three-phase four-wire activewatt-hour meter and three rheometers |
Y/Y variable-voltage combinedwiring diagram Ⅱ of DFY-2,DFY-2A type three-phase three-wire terminal block with three-phase three-wire active watt-hour meter and two rheometers |
 |
 |
| Combined wiring diagram of Ⅲ DFY-1B,DFY-3(PJ1)type three-phase terminal block with three-phase four-wire active watt-hour meter and three-phase reactive watt-hour meter,and three rheometers |
V/Vvariable-voltage com-binedwiring diagram IV of DFY-2B type three-phase three-wireterminal block with three-phase active watt-hour meter and tworheometers. |
