Description
Note: Many products are not yet listed. Please contact us for more product information. Our supply channels are constantly expanding, and we currently have 20 stable shared supply channels. Please confirm the model, product, price, and all other necessary information with customer service before placing an order. We offer new, refurbished, and used products, and prices are adjusted according to the year of the item you require.
3. Key Technical Specifications
| Parameter | Value (based on LC 1000-S/SP7 family data) |
|---|---|
| Model Designation | LC100S/SP7 / LC 1000-S/SP7 |
| Transducer Type | Closed-loop (compensated) Hall-effect |
| Primary Nominal Current | 1000 A r.m.s. (typical for this family) |
| Measuring Range | 0 … ±3000 A |
| Conversion Ratio | 1 : 4000 |
| Secondary Nominal Current | 250 mA |
| Supply Voltage | ±24 V |
| Overall Accuracy | ±0.2 % (at IPN, 25 °C) |
| Response Time | < 1 µs |
| Frequency Bandwidth | DC … 100 kHz |
| Isolation | Galvanic isolation between primary and secondary |
4. Product Introduction (Anti-Template)
The LEM LC100S/SP7 belongs to the LC-series closed-loop current transducers designed for precise electronic measurement of DC, AC, and pulsed currents. These transducers provide galvanic isolation between the high-power primary circuit and the secondary electronic circuit.
Using the Hall-effect compensated (closed-loop) principle, the device offers high accuracy, excellent linearity, and very fast response times. It is typically used in industrial drives, power conversion, traction, and other applications requiring reliable isolated current feedback. The /SP7 variant indicates a specific secondary connection and performance configuration within the LC family. Always verify the exact primary current rating and secondary interface against the application requirements, as LEM produces multiple closely related models in this series.
LC100S/SP7
LC100S/SP7
LC100S/SP7
5. QC, Procurement & Logistics SOP
- Inbound Verification – Confirm full model marking (LC100S/SP7 or LC 1000-S/SP7), secondary connector type, and physical condition of the aperture and housing. Photograph all labels.
- Functional Testing – Apply rated supply voltage, verify zero-offset, and check secondary output under known primary current where possible.
- QA & Packaging – Protect the secondary connector and aperture, clean the housing, and pack in anti-static protective packaging.
- Global Logistics & Export Compliance – Classify under the correct HS code for electrical current transducers/sensors. Packaging must protect against mechanical shock and ESD; export documentation is prepared to minimize customs delays.
6. Technical Pitfalls & Integration Warnings
Primary Conductor Placement – The primary conductor must pass cleanly through the aperture. Off-center or multiple turns will change the effective ratio and accuracy.
Supply Voltage – Operate only within the specified ±24 V range. Incorrect supply voltage will degrade accuracy or damage the transducer.
Burden Resistor – Select the measuring resistance (RM) according to the datasheet limits for the expected primary current. Exceeding the maximum RM can cause saturation or loss of accuracy.
Grounding & Shielding – Proper grounding of the secondary circuit and attention to cable routing are required to maintain noise immunity and isolation performance.
7. Frequently Asked Questions (FAQ)
What is the realistic global lead time for a verified LC100S/SP7?
Availability depends on surplus stock of this specialized transducer. Typical lead time after verification is 5–15 business days plus standard shipping.
What type of sensor is the LC100S/SP7?
It is a closed-loop (compensated) Hall-effect current transducer providing galvanic isolation.
What currents can it measure?
It is designed for high primary currents (nominally in the 1000 A class with extended measuring range up to several thousand amperes, depending on exact variant).
What is the conversion ratio?
Typically 1 : 4000 for the LC 1000-S/SP7 family.
What supply voltage does it require?
±24 V.
Is it still in active production?
Many LC-series variants are mature; specific /SP7 versions are often sourced as surplus or through specialist channels.
What should be confirmed before ordering a replacement?
Exact model string (LC100S/SP7), primary current rating required by the application, secondary connector type, and supply voltage compatibility.
