2 Wire Control Signal SPD 5Vdc 10kV PLC Sensor Industrial Analog Loop Protection
LS-CH Series 2-Wire Control Signal Lightning Arrester is designed for communication equipment such as dedicated communication lines, telemetry signals, measurement and control signals, PLC analog control systems, and 4-20mA current loops. Suitable for installation in LPZ 2-3 and subsequent lightning protection zones, it provides full-mode fine protection for two signal lines.
Featuring a plug-in module design, the product allows for easy replacement without interrupting signal transmission. The multi-level protection circuit ensures high flow rate and low residual voltage, effectively shielding signal lines from lightning-induced surges and electrostatic discharge. With a line-to-line bandwidth of 3MHz, it supports high-speed signal transmission without distortion.
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● It can simultaneously protect four communication signal lines.
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● Multi level protection, high flow rate, and low residual pressure.
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● The module can be hot swapped and replaced without interrupting signal transmission.
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| ● Suitable for installation in LPZ 2-3 and subsequent lightning protection zones, it is a lightning arrester for communicationequipment such as communication dedicated lines, telemetry signals, measurement and control signals, PLC analogcontrol systems, and 4-20mA current loops. |
Product Specification
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Standards
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IEC 61643.21
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Models
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LS-CH5/4
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LS-CH12/4
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LS-CH24/4
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LS-CH48/4
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Parameter
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Nominal operating voltage Un
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5Vdc
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12Vdc
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24Vdc
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48Vdc
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Maximum continuous operating voltage Uc
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6Vdc
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18Vdc
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32Vdc
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60Vdc
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X-X,X-C Shock rating C2
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10kV/5kA
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X-X,X-C Shock rating B2
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4kV(10/700μs)
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X-X Up@C2
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≤15V
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≤30V
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≤60V
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≤95V
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X-C Up@C2
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≤500V
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X-X Up@B2
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≤10V
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≤25V
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≤45V
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≤60V
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X-C Up@B2
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≤300V
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Response time tA
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≤1ns
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Load current IR
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500mA
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Line to line bandwidth fG
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3MHz
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Protective Line
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X1-X2,X3-X4,X1,X3-C,X2,X4-C
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Installation method
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DIN Rail 35mm
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Screw torque
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1N*m
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Strip length
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10mm
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Wiring cross-sectional area
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0.5mm²-2.5mm²
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Product size
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90mmx75mmx12mm
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Shell material and flame retardant grade
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PC+ABS,UL 94 V-0
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Installation location
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Indoor
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Shell protection rating
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IP20
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Temperature range
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-40℃…+80℃
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Humidity range
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Relative humidity≤95%
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Notices
1. Select the model based on the signal line's nominal operating voltage (5Vdc/12Vdc/24Vdc/48Vdc).
2. Use wiring with cross-sectional area 0.5mm²-2.5mm² and tighten screws to 1N·m torque.
3. The plug-in module design allows for easy replacement, but disconnect the signal line if possible during replacement.
4. Ensure reliable grounding with ground resistance ≤4Ω to guarantee surge diversion.
5. Avoid installing in environments with strong electromagnetic interference to prevent signal distortion.
6. Regularly inspect the module for loose connections or physical damage; replace if faulty.
FAQ
Q1: What is the difference between full-mode protection and line-line mode protection?
A1: Full-mode protection covers line-line and line-ground paths, while line-line mode only protects line-line paths. This product offers full-mode fine protection.
Q2: Can it be used for both DC and AC signal lines?
A2: It is specifically designed for DC signal lines (5Vdc/12Vdc/24Vdc/48Vdc). For AC signals, choose dedicated AC signal SPD models.
Q3: What is the load current capacity of the product?
A3: The maximum load current is 500mA, suitable for most industrial control signal lines.
Q4: Does the product require external power supply?
A4: No, it is passive and does not require external power supply, drawing minimal power from the signal line.
Q5: What is the service life of the product?
A5: Under normal operating conditions, the service life is 5-8 years. It may vary based on surge frequency and environmental factors.
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