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	Document	Primary nominal RMS voltage	Output Type	Secondary Nominal Signal Value	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

DK Sensors – ASK FOR SAMPLES / QUOTATIONS

Looking to receive samples or a quotation? Please click on the contact button below and provide us with the information you need on this product series. Our sales team will get back to you shortly.