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0755-82798135Current Sense Transformers
Current Sense Transformers
Current Sense Transformers are magnetic components used to detect, monitor and measure current in electronic and electrical systems. They provide isolation between the primary current path and sensing circuitry, making them suitable for power monitoring, overload detection, feedback control and protection functions. They are widely used in power supplies, motor drives, industrial control equipment, energy meters, inverters, battery systems, communication equipment and embedded applications.
This category includes current transformers, current sensing transformers, AC current sense transformers, PCB current transformers, split-core current transformers and related magnetic sensing components. These products are commonly selected based on current range, turns ratio, frequency range, isolation voltage, accuracy, burden resistance, mounting type, package style and application requirements.
TomatoElec supplies original Current Sense Transformers from recognized manufacturers such as Pulse Electronics, Bourns, Würth Elektronik, TDK, Murata, Triad Magnetics, Coilcraft, Hammond Manufacturing and other major brands. As an in-stock electronic components supplier and independent distributor, TomatoElec provides inventory support, original component sourcing and BOM sourcing services for global customers.
| Photo | Mfr. Part # | Availability | Price | Quantity | Datasheet | Series | Packaging | Product Status | Frequency Range | Type | Current Rating (Amps) | Inductance | ET (Volt-Time) | Turns Ratio - Primary:Secondary | Current Ratio | DC Resistance (DCR) | Ratings | Mounting Type | Size / Dimension | Height - Seated (Max) | Termination Style |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
B78419A2251A003CURR SENSE XFMR 1:100 SMD |
33 | - |
|
Datasheet |
B78419 | Tape & Reel (TR) | Active | 50kHz ~ 250kHz | Invasive | - | 7 mH | - | 1:100 | - | 0.5mOhm Primary, 3.1Ohm Secondary | - | Surface Mount | 0.504" L x 0.535" W (12.80mm x 13.60mm) | 0.567" (14.40mm) | Gull Wing |
|
101990065CURR SENSE XFMR 70A CHAS MNT |
40 | - |
|
Datasheet |
SCT013 | Bulk | Active | - | Non-Invasive (Split Core) | 70 A | - | - | - | - | - | - | Chassis Mount | - | - | Wire Leads with Connector |
|
SPCT 50/30 200/5 A VA 3 CL 1-CU-ROHSCURR SENSE XFMR 200A DIN RAIL |
49 | - |
|
Datasheet |
SPCT | Box | Active | 50Hz ~ 60Hz | Non-Invasive (Solid Core) | 200 A | - | - | - | 200:5 | - | - | DIN Rail | 1.969" L x 1.693" W (50.00mm x 43.00mm) | 2.953" (75.00mm) | Terminal Block |
|
SPCT 62/40 400/5 A VA 3.75 CL 0.5-CU-ROHSCURR SENSE XFMR 400A DIN RAIL |
35 | - |
|
Datasheet |
SPCT | Box | Active | 50Hz ~ 60Hz | Non-Invasive (Solid Core) | 400 A | - | - | - | 400:5 | - | - | DIN Rail | 2.441" L x 1.811" W (62.00mm x 46.00mm) | 3.169" (80.50mm) | Terminal Block |
|
CR8350-2000CURR SENSE XFMR 200A T/H |
50 | - |
|
Datasheet |
CR8300 | Bulk | Active | 20Hz ~ 1kHz | Non-Invasive (Solid Core) | 200 A | - | - | - | 2000:1 | 73Ohm | - | Through Hole | 1.476" L x 0.551" W (37.50mm x 14.00mm) | 1.535" (39.00mm) | PC Pin |
|
CCT261631-30-06-00CURR SENSE XFMR 30A CHAS MNT |
8 | - |
|
Datasheet |
CCT | Bulk | Active | 50/60Hz | Non-Invasive (Split Core) | 30 A | - | - | - | 3000:1 | 492Ohm | - | Chassis Mount | 1.126" L x 0.728" W (28.60mm x 18.50mm) | 1.260" (32.00mm) | Wire Leads with Connector |
|
|
MODEL 19CURR SENSE XFMR IN-LINE |
74 | - |
|
Datasheet |
PH | Bulk | Active | 50Hz ~ 1kHz | Non-Invasive (Solid Core) | - | - | - | - | - | - | - | Free Hanging (In-Line) | 1.039" L x 0.949" W (26.40mm x 24.10mm) | 0.461" (11.70mm) | Wire Leads |
|
CBCT-35-1-CECORE BALANCE CURRENT TRANSFORMER |
54 | - |
|
Datasheet |
CBCT | Box | Active | - | Non-Invasive (Solid Core) | - | - | - | - | - | - | - | Panel Mount | 2.520" L x 2.067" W (64.00mm x 52.50mm) | 3.780" (96.00mm) | Terminal Block |
|
C/CT-0810CURR SENSE XFMR 3000:1 80A CHAS |
67 | - |
|
Datasheet |
C/CT | Box | Active | 50Hz ~ 60Hz | Non-Invasive (Split Core) | 80 A | - | - | 3000:1 | 3000:1 | - | - | Chassis Mount | 0.078" L x 0.050" W (35.30mm x 22.90mm) | 0.827" (37.50mm) | Wire Leads with Connector |
|
CR2550-GCURR SENSE XFMR IN-LINE |
63 | - |
|
Datasheet |
CR2550 | Bulk | Active | 50Hz ~ 400Hz | Non-Invasive (Solid Core) | - | - | - | - | - | - | - | Free Hanging (In-Line) | 1.094" L x 0.866" W (27.80mm x 22.00mm) | - | - |
|
SPCT 62/22 30/5 A VA 1 CL 5-CU-ROHSCURR SENSE XFMR 30A DIN RAIL |
45 | - |
|
Datasheet |
SPCT | Box | Active | 50Hz ~ 60Hz | Non-Invasive (Solid Core) | 30 A | - | - | - | 30:5 | - | - | DIN Rail | 2.441" L x 1.811" W (62.00mm x 46.00mm) | 3.169" (80.50mm) | Terminal Block |
|
CBCT-70-1-CECORE BALANCE CURRENT TRANSFORMER |
18 | - |
|
Datasheet |
CBCT | Box | Active | - | Non-Invasive (Solid Core) | - | - | - | - | - | - | - | Panel Mount | 3.858" L x 3.425" W (98.00mm x 87.00mm) | 5.157" (131.00mm) | Terminal Block |
|
CR2SFT-101CURR SENSE XFMR 100A T/H |
50 | - |
|
Datasheet |
CR2 | Bulk | Active | 50Hz ~ 400Hz | Non-Invasive (Solid Core) | 100 A | - | - | - | 100:5 | - | - | Chassis Mount | 2.681" L x 2.000" W (68.10mm x 44.50mm) | 2.681" (68.10mm) | Stud |
|
CR45-GCURR SENSE XFMR PANEL MOUNT |
54 | - |
|
Datasheet |
CR45 | Bulk | Active | 50Hz ~ 1kHz | Non-Invasive (Solid Core) | - | - | - | - | - | - | - | Panel Mount | 0.949" L x 0.461" W (24.10mm x 11.70mm) | 1.039" (26.40mm) | - |
|
CR3111-3000CURR SENSE XFMR 100A IN-LINE |
51 | - |
|
Datasheet |
CR3100 | Bulk | Active | 20Hz ~ 1kHz | Non-Invasive (Split Core) | 100 A | - | - | - | - | 390Ohm | - | Free Hanging (In-Line) | 1.236" L x 1.220" W (31.40mm x 31.00mm) | 1.772" (45.00mm) | Wire Leads |
|
CCT323047-100-16-00CURR SENSE XFMR 100A CHAS MNT |
40 | - |
|
Datasheet |
CCT | Bulk | Active | 50/60Hz | Non-Invasive (Split Core) | 100 A | - | - | - | 3000:1 | 285Ohm | - | Chassis Mount | 1.378" L x 1.280" W (35.00mm x 32.50mm) | 1.870" (47.50mm) | Wire Leads with Connector |
|
TT 50-SDCURR SENSE XFMR |
36 | - |
|
Datasheet |
TT | Bulk | Not For New Designs | 50/60Hz | Non-Invasive (Split Core) | - | - | - | - | - | - | - | - | 1.280" L x 0.925" W (32.50mm x 23.50mm) | 1.693" (43.00mm) | PC Pin |
|
2277064CURR SENSE XFMR 1:20 100A DIN RL |
19 | - |
|
Datasheet |
PACT | Bulk | Active | 50Hz ~ 60Hz | Non-Invasive (Solid Core) | 100 A | - | - | - | - | - | - | DIN Rail | 2.362" L x 1.181" W (60.00mm x 30.00mm) | 3.150" (80.00mm) | Terminal Block |
|
2277019CURR SENSE XFMR 1:10 50A DIN RL |
28 | - |
|
Datasheet |
PACT | Bulk | Active | 50Hz ~ 60Hz | Non-Invasive (Solid Core) | 50 A | - | - | - | - | - | - | DIN Rail | 1.732" L x 1.181" W (44.00mm x 30.00mm) | 2.598" (66.00mm) | Terminal Block |
|
2277611CURR SENSE XFMR 75A DIN RAIL |
15 | - |
|
Datasheet |
- | Bulk | Active | 50Hz ~ 60Hz | Non-Invasive (Solid Core) | 75 A | - | - | - | - | - | - | DIN Rail | 1.732" L x 1.181" W (44.00mm x 30.00mm) | 2.598" (66.00mm) | Terminal Block |

