Description
MCL-4000F 3CT Method Clamp Tester
The MCL-4000F 3CT Method Clamp Tester is designed to measure AC leakage current in three-phase, three-wire and four-wire power systems. Its 3CT measurement method allows each phase conductor to be clamped individually, making it particularly useful where clamping all phase conductors together is difficult.
The instrument measures AC leakage current from 0 to 2000 mA and load current up to 800 A, with an accuracy of ±1.0% of reading ±5 digits. It also features a 130 Hz low-pass filter for high-frequency noise rejection and a DC 100 mV full-scale output for connection to a recorder.
The MCL-4000F uses three CT sensors for three-phase, three-wire systems. For three-phase, four-wire systems, a fourth CT sensor is required and is available separately as the MCL-4000F-NCT.
Specifications (Display Unit)
| Specification | Value |
|---|---|
| Measuring Method | Dual slope integration mode |
| Display | 3.5 digit LCD, max. reading of 1999 |
| Sampling | 2 times/sec |
| Range | AC 0~2000mA (Leakage current) AC 0~800A (Load current) |
| Accuracy | ±1.0% rdg ± 5 dgt |
| Filter | Low pass filter (130Hz) |
| Data Output | DC100mV (for full scale) |
| Power Supply | 1.5V (AM-4, LR03 or AAA)×2 |
| Operating Temperature | 0℃ to 40℃, 80%RH max. (Without condensation) |
| Storage Temperature | 10℃ to 60℃, 70%RH max. (Without condensation) |
| Size | 130(W)×200(H)×38(D)mm |
| Weight | Approx. 500g |
Specifications (CT Sensor)
| Specification | Value |
|---|---|
| Jaw Opening Capability | 36mmφ |
| Lead Cable Length | 3m |
| Magnetization of Core | Less than 10mA (for 100A input) |
| Applicable Current | Less than AC 800A |
| Limitation of Circuit | Less than AC 600V |
| Operating Temperature | 0℃ to 40℃, 80%RH max. (Without condensation) |
| Storage Temperature | -10℃ to 60℃, 70%RH max. (Without condensation) |
| Size | 100(W)×130(H)×25(D)mm |
| Weight | Approx. 420g |
| Power Supply | 1.5V (AM-4, LR03 or AAA)×2 |
| Accessories | Carrying case for 3 CTs:1 Instruction manual:1 Batteries:2 |
| Option | Model MCL-4000F-NCT (Additional CT for 3 phase 4 wire power system) |
Key Features –MCL-4000F 3CT Method Clamp Tester
- 3CT Measurement Method: Measures AC leakage current in three-phase electrical systems using separate CT sensors.
- AC Leakage and Load Current Measurement: Leakage current range of AC 0–2000 mA and load current range of AC 0–800 A.
- Measurement Accuracy: ±1.0% of reading ±5 digits.
- 130 Hz Low-Pass Filter: Provides filtering of higher-frequency signal components during measurement.
- Three-Phase System Configuration: Uses three CT sensors, with an optional MCL-4000F-NCT sensor for three-phase, four-wire systems.