Appendix; Appendix 1: Selecting Accessories - Delta DPM-C530A User Manual

Appendix 1: Selecting Accessories

Current Transformer:
Should input current exceed rated current tolerated by the meter
specifications, the power meter needs to be used together with a current
transformer (CT). Users can select a suitable CT according to the table
below.
Primary
Model
Current (A)
DCT-S301C 100A
DCT-S211C 200A
DCT-S221C 300A
DCT-S231C 400A
DCT-S241C 500A
DCT-S251C 600A
DCT-S261C 750A
DCT-S271C 1000A
DCT-S281C 1500A
DCT-S291C 2000A
DCT-S2A1C 2500A
DCT-S2B1C 3000A
*All models are not UL-certified.
Notes on selecting a current transformer
1. For the current transformer, the model with a closer maximal current on the primary side should be
selected according to the maximal current actually input.
For example: When the maximal current input is 700 A, DCT-S261C can be selected.
2. Wire over-length on the secondary side of the current transformer causes decrease in accuracy.

Appendix

Secondary
Burden (VA)
Current (A)
5A 1.5VA
5A 1.5VA
5A 2.5VA
5A 3.75VA
5A 5VA
5A 5VA
5A 5VA
5A 10VA
5A 10VA
5A 10VA
5A 15VA
5A 20VA
Accuracy (%)
1.0%
0.5%
0.5%
0.5%
0.5%
0.5%
0.5%
0.5%
0.5%
0.5%
0.5%
0.5%
82
Size (mm)
Outer frame
Inner frame
Outer frame
Inner frame
Outer frame
Inner frame
Outer frame
Inner frame
Outer frame 145*116*51
Inner frame
Outer frame 145*116*51
Inner frame
Outer frame 145*116*51
Inner frame
Outer frame 145*116*51
Inner frame
Outer frame 196*146*51
Inner frame
Outer frame 250*186*51.4
Inner frame 160.5*81*32
Outer frame 250*186*51.4
Inner frame 160.5*81*32
Outer frame 250*186*51.4
Inner frame 160.5*81*32
115*89*51
32*21*32
115*89*51
32*21*32
115*89*51
32*21*32
115*89*51
32*21*32
80*50*32
80*50*32
80*50*32
80*50*32
122*80*32