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MTL LC30 Range Specialist Surge Protection Products
Brand: MTL InstrumentsThe LC30 surge protection device protects load cell and weighing system installations from possible malfunctions, or damage to individual strain-gauge bridges of associated electronic instrumentation etc., caused by severe overvoltages or impulse currents on signal cabling.
Fully solid state, the LC30 clamps incoming surges immediately without causing undue leakage losses under normal conditions.
Once the surge has passed, the device automatically resets to the passive state, allowing normal operations to continue.
The advanced protection concept used in the LC30 also eliminates the expensive additional earthing systems specified by other suppliers so field installation is very simple indeed.
The LC30 device is non-voltage producing, non energy storing ‘simple apparatus’ and as such, can be used in hazardous areas with appropriate self generated system documentation.
The LC30 is also certified for use in legal metrology applications.
Features- Protects Load Cells, Weighbridges, Process Weighing and Silos
- Certified for Use in Legal Metrology Applications
- Reliable, High Surge Absorption Capacity
- Easy Filed Installation in Rugged Weatherproof Enclosure
- Can be Used in Intrinsically Safe Circuits without Further Certification
Specifications
Brand
Maximum Surge Current
- 10 kA
Leakage Current
- 10 μA at 32 Vdc
Limiting Voltage
- 80 V (after 6 kV/3kA IEC 61000-4-5 combination wave test)
Nominal Excitation Voltage
- 20 Vac or DC
Maximum Excitation Voltage
- 22 Vac or 32 Vdc
Protection
- Dust and watertight to IEC 60529:IP67
- GRP enclosure
Ambient Temperature Limits
- -4° to +140° F (-20° to +60° C) working
- -22° to +158° F (-30° to +70° C) storage
Humidity
- 5 to 95 % RH, Non-Condensing
Connections
- Input/output: 6-wire plus screen plus earth (ground)
Maximum Terminal Conductor Size
- 1.5 mm*2 (15 AWG) Glands (IP68) provided for cable sizes 5 to 10 mm diameter
- Main earth connection, M8 external stud Mounting Internal 0.28" (7 mm) diameter through-holes
Weight
- 3.3 lb (1.5 kg)
EMC Compliance
- To generic Immunity Standards, EN 50082, part 2 for industrial environments