Smart Grid Sensors
LEM sensors enable precise monitoring and optimization in a wide range of applications
LEM smart grid sensors are designed to deliver the precise monitoring and optimization required for smarter, more resilient energy systems. The electrical grid is transforming to meet new demands, from the rise of electric vehicles to the growth of renewable and distributed energy sources, as well as the increasing electrification of building cooling systems. Data centers and energy storage systems have become essential parts of today’s energy landscape. Managing these increasingly complex and decentralized networks requires smart infrastructure powered by accurate, real‑time data. LEM current sensors provide that insight, enabling precise monitoring and optimization of energy production, distribution, and consumption to enhance reliability, reduce waste, and support a more flexible, resilient grid.
- Distribution automation: fault detection, isolation, and restoration
- Grid monitoring (intelligent substations)
- Protection and safety
- Distribution transformer monitoring
- Distribution automation: voltage control
- Power quality
- EV infrastructure
Current Transducers and Transformers
| Image | Manufacturer Part Number | Description | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|
![]() | ![]() | APR 50 B10 | CURRENT SENSOR XFMR 10A,25A,50A | 26 - Immediate | $160.45 | View Details |
![]() | ![]() | APR 50 B420L | CURRENT SENSOR XFMR 10A,25A,50A | 164 - Immediate | $182.64 | View Details |
![]() | ![]() | APR 400 B420L | CURRENT SEN XFMR 200A,300A,400A | 72 - Immediate | $184.84 | View Details |
![]() | ![]() | APR 100 B10 | CURRENT SENSOR XFMR 50A,75A,100A | 13 - Immediate | $156.03 | View Details |
![]() | ![]() | APR 400 B10 | CURRENT SEN XFMR 200A,300A,400A | 23 - Immediate | $163.19 | View Details |
![]() | ![]() | APR 200 B10 | CURRENT SEN XFMR 100A,150A,200A | 38 - Immediate | $167.44 | View Details |
![]() | ![]() | AHR 1500 B420 | CURRENT SENSOR HE/OL 1500A | 0 - Immediate | $339.84 | View Details |
![]() | ![]() | ATO-75-B1I-D10 | CURRENT SENSOR TRANSDUCER 75A | 0 - Immediate | $37.53 | View Details |
![]() | ![]() | AP 50 B10 | CURRENT SENSOR TRANSDUCER | 0 - Immediate | $125.76 | View Details |
![]() | ![]() | AP 400 B10 | CURRENT SENSOR TRANSDUCER | 0 - Immediate | $125.76 | View Details |
EV Charging and DC Systems
| Image | Manufacturer Part Number | Description | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|
![]() | ![]() | DCBM 400 | MULTI METER LCD DIN RAIL | 1 - Immediate | $1,312.58 | View Details |
![]() | ![]() | DCBM 600 | MULTI METER LCD DIN RAIL | 1 - Immediate | $1,378.42 | View Details |
Rogowski Coils
| Image | Manufacturer Part Number | Description | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|
![]() | ![]() | ART-B22-D125/SP3 | CURRENT SEN ROGOWSKI COIL 1000A | 0 - Immediate | $93.47 | View Details |
![]() | ![]() | ART-B22-D175/SP3 | CURRENT SEN ROGOWSKI COIL 1000A | 0 - Immediate | $98.26 | View Details |
![]() | ![]() | ART-B22-D70/SP6 | CURRENT SEN ROGOWSKI COIL 1000A | 0 - Immediate | $104.78 | View Details |
![]() | ![]() | ART-B22-D125/SP4 | CURRENT SEN ROGOWSKI COIL 1000A | 0 - Immediate | $109.60 | View Details |
![]() | ![]() | ART-B22-D125/SP6 | CURRENT SEN ROGOWSKI COIL 1000A | 0 - Immediate | $110.08 | View Details |
![]() | ![]() | ART-B22-D125/SP25 | CURRENT SEN ROGOWSKI COIL 2000A | 0 - Immediate | $137.83 | View Details |
![]() | ![]() | ART-B22-D300/SP4 | CURRENT SEN ROGOWSKI COIL 1000A | 0 - Immediate | $145.59 | View Details |
![]() | ![]() | ARH-B22-D70 | CURRENT SEN ROGOWSKI COIL 2000A | 0 - Immediate | $171.40 | View Details |
![]() | ![]() | ARU-B100-D125 | CURRENT SEN ROGOWSKI COIL 1000A | 0 - Immediate | $198.96 | View Details |
![]() | ![]() | ARU-B100-D175 | CURRENT SEN ROGOWSKI COIL 1000A | 0 - Immediate | $211.16 | View Details |
Rogowski Coil Integrators
| Image | Manufacturer Part Number | Description | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|
![]() | ![]() | AI-PMUL | CURRENT SEN ROGOWSKI COIL 5000A | 0 - Immediate | $255.71 | View Details |
![]() | ![]() | AI-P1A | CURRENT SEN ROGOWSKI COIL 5000A | 0 - Immediate | $335.40 | View Details |













