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

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Appendix 1: Selecting Accessories
Current Transformer:
Should input current exceed rated current tolerated by the meter
specications, the power meter needs to be used together with a current
transformer (CT). Users can select a suitable CT according to the table
below.
Model
Primary
Current (A)
Secondary
Current (A)
Burden (VA) Accuracy (%) Size (mm)
DCT-S301C 100A 5A 1.5VA 1.0%
Outer frame
Inner frame
115*89*51
32*21*32
DCT-S211C 200A 5A 1.5VA 0.5%
Outer frame
Inner frame
115*89*51
32*21*32
DCT-S221C 300A 5A 2.5VA 0.5%
Outer frame
Inner frame
115*89*51
32*21*32
DCT-S231C 400A 5A 3.75VA 0.5%
Outer frame
Inner frame
115*89*51
32*21*32
DCT-S241C 500A 5A 5VA 0.5%
Outer frame
Inner frame
145*116*51
80*50*32
DCT-S251C 600A 5A 5VA 0.5%
Outer frame
Inner frame
145*116*51
80*50*32
DCT-S261C 750A 5A 5VA 0.5%
Outer frame
Inner frame
145*116*51
80*50*32
DCT-S271C 1000A 5A 10VA 0.5%
Outer frame
Inner frame
145*116*51
80*50*32
DCT-S281C 1500A 5A 10VA 0.5%
Outer frame
Inner frame
196*146*51
122*80*32
DCT-S291C 2000A 5A 10VA 0.5%
Outer frame
Inner frame
250*186*51.4
160.5*81*32
DCT-S2A1C 2500A 5A 15VA 0.5%
Outer frame
Inner frame
250*186*51.4
160.5*81*32
DCT-S2B1C 3000A 5A 20VA 0.5%
Outer frame
Inner frame
250*186*51.4
160.5*81*32
*All models are not UL-certied.
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