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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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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855-4101/300-001CURR SENSE XFMR 300A CHAS MNT |
0 | - |
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Datasheet |
- | Box | Active | 50Hz ~ 60Hz | Non-Invasive (Split Core) | 300 A | - | - | - | - | - | - | Chassis Mount | 2.252" L x 1.929" W (57.20mm x 49.00mm) | 2.638" (67.00mm) | Wire Leads |
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855-4101/200-001CURR SENSE XFMR 200A CHAS MNT |
0 | - |
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Datasheet |
- | Box | Active | 50Hz ~ 60Hz | Non-Invasive (Split Core) | 200 A | - | - | - | - | - | - | Chassis Mount | 2.252" L x 1.929" W (57.20mm x 49.00mm) | 2.638" (67.00mm) | Wire Leads |
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855-4005/250-100CURR SENSE XFMR 250A CHAS MNT |
0 | - |
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Datasheet |
- | Box | Active | 50Hz ~ 60Hz | Non-Invasive (Split Core) | 250 A | - | - | - | - | - | - | Chassis Mount | 2.252" L x 1.929" W (57.20mm x 49.00mm) | 2.638" (67.00mm) | Wire Leads |
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855-4105/250-101CURR SENSE XFMR 250A CHAS MNT |
0 | - |
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Datasheet |
- | Box | Active | 50Hz ~ 60Hz | Non-Invasive (Split Core) | 250 A | - | - | - | - | - | - | Chassis Mount | 2.252" L x 1.929" W (57.20mm x 49.00mm) | 2.638" (67.00mm) | Wire Leads |
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855-4101/400-001CURR SENSE XFMR 400A CHAS MNT |
0 | - |
|
Datasheet |
- | Box | Active | 50Hz ~ 60Hz | Non-Invasive (Split Core) | 400 A | - | - | - | - | - | - | Chassis Mount | 2.252" L x 1.929" W (57.20mm x 49.00mm) | 2.638" (67.00mm) | Wire Leads |
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855-4101/500-000CURR SENSE XFMR 500A CHAS MNT |
0 | - |
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Datasheet |
- | Box | Active | 50Hz ~ 60Hz | Non-Invasive (Split Core) | 500 A | - | - | - | - | - | - | Chassis Mount | 2.252" L x 1.929" W (57.20mm x 49.00mm) | 2.638" (67.00mm) | Wire Leads |
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855-4105/500-101CURR SENSE XFMR 500A CHAS MNT |
0 | - |
|
Datasheet |
- | Box | Active | 50Hz ~ 60Hz | Non-Invasive (Split Core) | 500 A | - | - | - | - | - | - | Chassis Mount | 2.252" L x 1.929" W (57.20mm x 49.00mm) | 2.638" (67.00mm) | Wire Leads |
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855-4105/400-101CURR SENSE XFMR 400A CHAS MNT |
0 | - |
|
Datasheet |
- | Box | Active | 50Hz ~ 60Hz | Non-Invasive (Split Core) | 400 A | - | - | - | - | - | - | Chassis Mount | 2.252" L x 1.929" W (57.20mm x 49.00mm) | 2.638" (67.00mm) | Wire Leads |
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855-4001/125-001CURR SENSE XFMR 125A CHAS MNT |
0 | - |
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Datasheet |
- | Box | Active | 50Hz ~ 60Hz | Non-Invasive (Split Core) | 125 A | - | - | - | - | - | - | Chassis Mount | 2.252" L x 1.929" W (57.20mm x 49.00mm) | 2.638" (67.00mm) | Wire Leads |
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855-4101/250-001CURR SENSE XFMR 250A CHAS MNT |
0 | - |
|
Datasheet |
- | Box | Active | 50Hz ~ 60Hz | Non-Invasive (Split Core) | 250 A | - | - | - | - | - | - | Chassis Mount | 2.252" L x 1.929" W (57.20mm x 49.00mm) | 2.638" (67.00mm) | Wire Leads |
|
855-4001/250-000CURR SENSE XFMR 250A CHAS MNT |
0 | - |
|
Datasheet |
- | Box | Active | 50Hz ~ 60Hz | Non-Invasive (Split Core) | 250 A | - | - | - | - | - | - | Chassis Mount | 2.252" L x 1.929" W (57.20mm x 49.00mm) | 2.638" (67.00mm) | Wire Leads |
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855-4005/200-101CURR SENSE XFMR 200A CHAS MNT |
0 | - |
|
Datasheet |
- | Box | Active | 50Hz ~ 60Hz | Non-Invasive (Split Core) | 200 A | - | - | - | - | - | - | Chassis Mount | 2.252" L x 1.929" W (57.20mm x 49.00mm) | 2.638" (67.00mm) | Wire Leads |
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855-4005/150-101CURR SENSE XFMR 150A CHAS MNT |
0 | - |
|
Datasheet |
- | Box | Active | 50Hz ~ 60Hz | Non-Invasive (Split Core) | 150 A | - | - | - | - | - | - | Chassis Mount | 2.252" L x 1.929" W (57.20mm x 49.00mm) | 2.638" (67.00mm) | Wire Leads |
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ZSCT5-88CURR SENSE XFMR 100:1 5A IN-LINE |
0 | - |
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Datasheet |
ZSCT | Bulk | Active | 50Hz ~ 400Hz | Non-Invasive (Solid Core) | 5 A | - | - | 100:1 | 5:0.05 | - | - | Free Hanging (In-Line) | 5.725" L x 5.421" W (145.42mm x 137.69mm) | 5.280" (134.12mm) | Wire Leads |
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2728140000KCMA-8-1200-5A-10VA1 |
0 | - |
|
Datasheet |
- | Box | Active | 50Hz | Non-Invasive (Split Core) | 1200 A | - | - | - | - | - | - | DIN Rail | 6.102" L x 2.283" W (154.99mm x 57.99mm) | 7.795" (197.99mm) | Terminal Block |
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2728110000KCMA-8-750-5A-2VA1 |
0 | - |
|
Datasheet |
- | Box | Active | 50Hz | Non-Invasive (Split Core) | 750 mA | - | - | - | - | - | - | DIN Rail | 6.102" L x 2.283" W (154.99mm x 57.99mm) | 7.795" (197.99mm) | Terminal Block |
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2728090000KCMA-8-250-5A-1.5VA1 |
0 | - |
|
Datasheet |
- | Box | Active | 50Hz | Non-Invasive (Split Core) | 250 A | - | - | - | - | - | - | DIN Rail | 6.102" L x 2.283" W (155.00mm x 58.00mm) | 7.801" (198.15mm) | Terminal Block |
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2728130000KCMA-8-1000-5A-10VA1 |
0 | - |
|
Datasheet |
- | Box | Active | 50Hz | Non-Invasive (Split Core) | 1 kA | - | - | - | - | - | - | DIN Rail | 6.102" L x 2.283" W (154.99mm x 57.99mm) | 7.795" (197.99mm) | Terminal Block |
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2728100000KCMA-8-500-5A-5VA1 |
0 | - |
|
Datasheet |
- | Box | Active | 50Hz | Non-Invasive (Split Core) | 500 mA | - | - | - | - | - | - | DIN Rail | 6.102" L x 2.283" W (154.99mm x 57.99mm) | 7.795" (197.99mm) | Terminal Block |
|
2753400000KCMA 5-1000-5A-5VA-0.5 |
0 | - |
|
Datasheet |
- | Box | Active | 50Hz | Non-Invasive (Split Core) | 1 kA | - | - | - | - | - | - | DIN Rail | 4.921" L x 2.283" W (125.00mm x 58.00mm) | 6.220" (158.00mm) | Terminal Block |

