AP, APR
DIN mount split core AC current sensors based on PRiME air-core technology.
AP & APR Split-core transducers
The AP and APR series are split-core current sensors designed to accommodate AC current ranges from 10A to 400A, adjustable via a switch.
These sensors are available in both RMS and True RMS versions and offer multiple output options, including 4-20mA, 0-5V, or 0-10V, which can be selected via a switch. They boast a wide bandwidth spanning from 30 Hz to 6 kHz and feature an 18 mm diameter aperture.
While both series share similar characteristics, they also offer distinct features. The AP series is equipped with an RMS version, operates within a bandwidth of 30-2000 Hz, and is loop powered. On the other hand, the APR sensors come with a True RMS version and a broader bandwidth ranging from 30-6000 Hz.
Both the AP and APR series offer B10 and B420L versions of their electronic components. The B10 variant refers to the sensors' voltage output capability (0-5 or 0-10 V DC), while the B420L variant pertains to the current output (4-20 mA DC) of the sensors.
Utilizing the PRiME (Rogowski) air-core technology, the AP and APR sensors are primarily tailored for applications in the energy and automation sectors, where precise current measurement is essential.
AP, APR – Features and benefits
Main characteristics
- RMS output (AP) or True RMS output (APR)
- Split-core type
- 0-5 V DC and 0-10 V DC switch selectable voltage output (AP-B10, APR-B10) or Loop powered 4-20 mA current output (AP-B420L, APR-B420L)
- DIN rail or Panel mounting
- Switch selectable measuring ranges
- Insulating plastic case recognized according to UL 94-V0
Moreover, APR split-core sensors are equipped to measure VFD and SCR waveforms in current.
Benefits
- Large aperture for cable up to ⌀ 18 mm
- High insulation between primary and secondary circuits
- Eliminates insertion loss
- Easy installation
Typical applications
In the realm of energy and automation, both AP and APR product lines serve diverse applications. Specifically focusing on AP sensors, some notable applications include:
- Automation systems: Analog current reading for remote monitoring (e.g. motor) and software alarms.
- Panel meters: Simple connection to power consumption displays.
In contrast, APR transducers are specifically engineered to cater to the following applications:
- VFD Controlled Loads: VFD output indicates how the motor and attached load are operating.
- SCR Controlled Loads: Accurate measurement of phase angle fired or burst fired (time proportioned) SCRs. Current measurement gives faster response than temperature measurement.
- Switching Power Supplies and Electronic Ballasts: True RMS sensing is the most accurate way to measure power supply or ballast input power.
LEM AP, APR – Download & Technical Characteristic
AP SERIES
| Product | Order | Document | Primary nominal RMS voltage | Output Type | Secondary Nominal Signal Value | Op. Temperature |
|---|---|---|---|---|---|---|
| AP 50 B10 | Datasheet 3D | 10 A, 25 A, 50 A | Voltage | 0-5V | -20 to 60 °C | |
| AP 50 B420L | Datasheet 3D | 10 A, 25 A, 50 A | Current | 4-20mA | -20 to 60 °C | |
| AP 100 B10 | Datasheet 3D | 50 A, 75 A, 100 A | Voltage | 0-5V | -20 to 60 °C | |
| AP 100 B420L | Datasheet 3D | 50 A, 75 A, 100 A | Current | 4-20mA | -20 to 60 °C | |
| AP 200 B10 | Datasheet 3D | 100 A, 150 A, 200 A | Voltage | 0-5V | -20 to 60 °C | |
| AP 200 B420L | Datasheet 3D | 100 A, 150 A, 200 A | Current | 4-20mA | -20 to 60 °C | |
| AP 400 B10 | Datasheet 3D | 200 A, 300 A, 400 A | Voltage | 0-5V | -20 to 60 °C | |
| AP 400 B420L | Datasheet 3D | 200 A, 300 A, 400 A | Current | 4-20mA | -20 to 60 °C |
APR SERIES
| Product | Order | Document | Primary nominal RMS voltage | Output Type | Secondary Nominal Signal Value | Secondary Nominal Signal Value |
|---|---|---|---|---|---|---|
| APR 50 B10 | Datasheet 3D | 10 A, 25 A, 50 A | Voltage | 0-5V | -20 to 60 °C | |
| APR 50 B420L | Datasheet 3D | 10 A, 25 A, 50 A | Current | 4-20mA | -20 to 60 °C | |
| APR 100 B10 | Datasheet 3D | 50 A, 75 A, 100 A | Voltage | 0-5V | -20 to 60 °C | |
| APR 100 B420L | Datasheet 3D | 50 A, 75 A, 100 A | Current | 4-20mA | -20 to 60 °C | |
| APR 200 B10 | Datasheet 3D | 100 A, 150 A, 200 A | Voltage | 0-5V | -20 to 60 °C | |
| APR 200 B420L | Datasheet 3D | 100 A, 150 A, 200 A | Current | 4-20mA | -20 to 60 °C | |
| APR 400 B10 | Datasheet 3D | 200 A, 300 A, 400 A | Voltage | 0-5V | -20 to 60 °C | |
| APR 400 B420L | Datasheet 3D | 200 A, 300 A, 400 A | Current | 4-20mA | -20 to 60 °C |
AP, APR Sensors – ASK FOR SAMPLES / QUOTATIONS
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