DK Series
Split Core (B series) and Solid Core (C series) DC current sensors for automation applications.
DK – Automation current sensors
The DK Series comprises split-core and solid-core current sensors engineered to accommodate AC current ranges from 5A to 200A, selectable by a jumper. Within this series, the DK-B Series (Split Core) allows for current measurements ranging from 50A to 200A, while the DK-C Series (Solid Core) covers a range from 5A to 100A.
These sensors offer multiple output options, such as 4-20mA, 0-5V, or 0-10V, which can be selected via a jumper. The distinction between DK-B and DK-C lies in their core type, with "B" indicating split core and "C" indicating solid core.
Additionally, the DK Series benefit from unique designations:
- DK-5 and DK-10 denote sensors with voltage output capability (0-5V and 0-10V, respectively).
- DK-420 signifies sensors with current output capability (4-20mA).
Furthermore, the electronic parts carry additional specifications:
- DK XXX B denotes sensors designed for bipolar DC current range measurement.
- DK XXX U denotes sensors tailored for unipolar DC current range measurement.
Utilizing open-loop hall effect technology, both the DK split-core and solid-core sensors are primarily suited for applications in the automation sector, but also in power supplies and renewables areas, where precise current measurement is critical.
DK – Features and benefits
Main characteristics
- DC (magnitude only), DC bipolar (magnitude and direction) or DC unidirectional measurement
- Split-core type (DK-B) or Solid-core (DK-C)
- Three jumper selectable ranges
- 0-5 V DC and 0-10 V DC jumper selectable voltage output or 4-20 mA current output
- Panel mounting
- From 1 % accuracy (Split Core) to 2 % (Solid Core)
- Bandwidth DC
- Insulating plastic case recognized according to UL 94-V0
Benefits
- Large aperture
- Extended measuring range
- High insulation between primary and secondary circuits
- Easy to mount, cut installation costs
- Power supply: +24 VDC
- Isolation test voltage: 3 kVRMS / 50 HZ / 1 min
- No insertion loss (voltage drop)
Typical applications
In the field of renewable energy, power supplies and automation, DK current sensors find application across various sectors. Some notable examples include:
- Battery banks: Load current monitoring, Charging current monitoring, Operation supervision
- Power supplies: DC power or auxiliary loads measurements
- Electric heating elements: Faster response than temperature sensors
LEM DK – Download & Technical Characteristic
Product | Order | Document | Primary nominal | Output Type | Secondary Nominal | Op. Temperature |
|---|---|---|---|---|---|---|
| DK 20 C10 U |
| Datasheet | 5 A, 10 A, 20 A | Voltage | 0-10V | -20 to 50 °C |
| DK 20 C420 B |
| Datasheet | 5 A, 10 A, 20 A | Current | 4-20mA | -20 to 50 °C |
| DK 20 C420 U |
| Datasheet | 5 A, 10 A, 20 A | Current | 4-20mA | -20 to 50 °C |
| DK 20 C5 U |
| Datasheet | 5 A, 10 A, 20 A | Voltage | 0-5V | -20 to 50 °C |
| DK 100 B10 | Datasheet | 50 A, 75 A, 100 A | Voltage | 0-10V | -20 to 50 °C | |
| DK 100 B420 | Datasheet | 50 A, 75 A, 100 A | Current | 4-20mA | -20 to 50 °C | |
| DK 100 B420 U |
| Datasheet | 50 A, 75 A, 100 A | Current | 4-20mA | -20 to 50 °C |
| DK 100 B5 |
| Datasheet | 50 A, 75 A, 100 A | Voltage | 0-5V | -20 to 50 °C |
| DK 100 C10 U | Datasheet | 50 A, 75 A, 100 A | Voltage | 0-10V | -20 to 50 °C | |
| DK 100 C420 B |
| Datasheet | 50 A, 75 A, 100 A | Current | 4-20mA | -20 to 50 °C |
| DK 100 C420 U |
| Datasheet | 50 A, 75 A, 100 A | Current | 4-20mA | -20 to 50 °C |
| DK 100 C5 U |
| Datasheet | 50 A, 75 A, 100 A | Voltage | 0-5V | -20 to 50 °C |
| DK 200 B10 | Datasheet | 100 A, 150 A, 200 A | Voltage | 0-10V | -20 to 50 °C | |
| DK 200 B420 | Datasheet | 100 A, 150 A, 200 A | Current | 4-20mA | -20 to 50 °C | |
| DK 200 B420 B | Datasheet | 100 A, 150 A, 200 A | Current | 4-20mA | -20 to 50 °C | |
| DK 200 B420 U |
| Datasheet | 100 A, 150 A, 200 A | Current | 4-20mA | -20 to 50 °C |
| DK 400 B420 | Datasheet | 200 A, 300 A, 400 A | Current | 4-20mA | -20 to 50 °C |
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