The DM series current transformers (CT) are installed in electric systems to reduce the line current to a secondary value of 5A, which is compatible with current inputs of digital multimeters or protection relays.These are without primary winding and are used for high primary current values from 50A upward.The number of loops of the primary cable does not modify the accuracy but converts the primary current value proportional to secondary current.
Electrical Parameter | Mechanical Parameter | ||
Frequency | 50/60Hz | Case | PC/UL94-V0 |
Rated Input | 1A-5000A | Bobbin | PBT |
Measuring range | 5%In-120%In | Core | Silicon steel |
Rated Output | 1A,5A | Construction | Screw |
Ratio Voltage | 0.72KV (AC) | Operating Temp | -25℃~+75℃ |
Dielectric strength | 3.0KV/1mA/1min | Operating Humidity | ≤85% |
Insulation Resistance | DC500V/100MΩ min | Output Connection | Terminal |
Specification
Type | Current Ratio | Burden(VA) | Frequency(Hz) | |
class:0.5 | class:1.0 | |||
DX-20 | 5/5A | 1.5 | 2.5 | 50/60 |
10/5A | 1.5 | 2.5 | 50/60 | |
15/5A | 1.5 | 2.5 | 50/60 | |
20/5A | 1.5 | 2.5 | 50/60 |
Type | Current Ratio | Burden(VA) | Frequency(Hz) | |
class:0.5 | class:1.0 | |||
DX-30 | 100/5A | - | 2.5 | 50/60 |
150/5A | - | 2.5 | 50/60 | |
200/5A | 1.5 | 2.5 | 50/60 | |
250/5A | 2.5 | 2.5 | 50/60 | |
300/5A | 2.5 | 2.5 | 50/60 | |
400/5A | 2.5 | 2.5 | 50/60 | |
500/5A | 2.5 | 2.5 | 50/60 |
Type | Current Ratio | Burden(VA) | Frequency(Hz) | |
class:0.5 | class:1.0 | |||
DX-40 | 150/5A | - | 2.5 | 50/60 |
200/5A | 2.5 | 2.5 | 50/60 | |
250/5A | 2.5 | 5 | 50/60 | |
300/5A | 5 | 5 | 50/60 | |
400/5A | 5 | 5 | 50/60 | |
500/5A | 5 | 5 | 50/60 | |
600/5A | 5 | 10 | 50/60 | |
800/5A | 5 | 10 | 50/60 | |
1000/5A | 5 | 10 | 50/60 |
Type | Current Ratio | Burden(VA) | Frequency(Hz) | |
class:0.5 | class:1.0 | |||
DX-125 | 800/5A | 5 | 10 | 50/60 |
1000/5A | 7.5 | 12.5 | 50/60 | |
1200/5A | 10 | 15 | 50/60 | |
1250/5A | 10 | 15 | 50/60 | |
1500/5A | 15 | 25 | 50/60 | |
1600/5A | 15 | 25 | 50/60 | |
2000/5A | 15 | 25 | 50/60 | |
2250/5A | 15 | 25 | 50/60 | |
2500/5A | 15 | 25 | 50/60 | |
3000/5A | 15 | 25 | 50/60 | |
4000/5A | 20 | 30 | 50/60 | |
5000/5A | 20 | 30 | 50/60 | |
6000/5A | 20 | 30 | 50/60 |
Dimensions
DX-20 | DX-30 |
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DX-40 | DX-125 |
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Accuracy test
Installation method
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