Product Details
QJSPD-PV40 40kA DC
QJSPD-PV40 40kA DC Surge Protective Device is a high-performance DC surge protection solution designed to protect photovoltaic (PV) systems against lightning surges and transient overvoltages. It ensures stable and continuous operation of solar installations by safely discharging surge currents up to 40kA.
Technical Specifications & Description
Table of Contents
Product Overview
The QJSPD-PV40 DC Surge Protective Device is specifically engineered for photovoltaic power systems where DC-side surge protection is critical. It utilizes self-developed MOV technology and an integrated thermal disconnect mechanism to ensure safe and reliable surge suppression.
Its modular and pluggable design allows easy maintenance and fast replacement, making it ideal for large-scale solar installations and commercial PV projects.
Key Features
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40kA Surge Current Capacity: Effective protection against lightning and transient surges
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Self-Developed MOV Technology: High reliability and long service life
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Consistent Pluggable Design: Includes N/PE spark gap compatibility
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Thermal Disconnect Device: Individual thermal protection for each module
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Optical & Mechanical Status Indication: Clear visual monitoring of device condition
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Optional Remote Signaling Contact: Supports floating remote alarm output
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Wide Network Compatibility: Suitable for almost all PV system configurations
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DIN Rail Mounting: Standard 35mm DIN rail installation
technical parameters
Typical Applications
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Photovoltaic power generation systems
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Solar combiner boxes
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DC distribution panels
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Commercial and industrial PV plants
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Rooftop and ground-mounted solar installations
FAQ
Is this SPD suitable for DC photovoltaic systems?
Yes, it is specifically designed for DC-side protection in PV installations.
Can the modules be replaced without disconnecting the system?
The pluggable design allows fast and safe module replacement.
Does it support remote alarm signaling?
Yes, optional floating remote indication contact is available.
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