| Customization: | Available |
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| Type: | Power Source Arrester |
| Structure: | Zinc Oxide Arrester |
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Our SPD Surge Protective Devices are expertly engineered to safeguard your electrical systems against transient surge conditions. These surges can arise from major events like lightning strikes, which can unleash hundreds of thousands of volts, leading to immediate or gradual equipment failure. While lightning and utility power irregularities account for only 20% of these transient surges, a staggering 80% are internally generated within your premises. Although these internal surges are generally smaller, their frequent occurrence can insidiously degrade your sensitive electronic equipment over time.
A power surge, characterized as a sudden overvoltage spike, poses a significant threat to electrical devices and is often a leading cause of equipment malfunction. Such surges can severely damage and shorten the operational lifespan of your:
NEW 2020 National Electrical Code Requirements
In accordance with the 2020 National Electrical Code, it is now mandatory for all newly constructed and renovated homes to be equipped with Listed and Approved Type 1 or Type 2 Surge Protective Devices, ensuring comprehensive protection against surges.
Type 1:
This is a permanently connected Surge Protective Device, designed to defend against both external and internal electrical surges. It can be installed either inside or outside the home, providing flexible installation options.
Type 2:
This Surge Protective Device is permanently connected and should be installed in or adjacent to the breaker box. It offers essential protection against both external and internal surges.
Type 3:
Offering supplementary protection, this Point-of-use Surge Protective Device must be used alongside Type 1 or Type 2 SPDs to fully comply with the 2020 code requirements.
For optimal protection of your electrical systems, it is advisable to deploy a combination of Type 1, 2, and 3 SPDs, ensuring the highest level of safety and code compliance.
| Max Continuous Operating Voltage | Ucpv | 500VDC | 600VDC | 1000VDC | 1500VDC | ||||||
| Nominal Discharge Current | In | 20kA | 20kA | 20kA | 20kA | ||||||
| Max Discharge Current | lmax | 40kA | 40 kA | 40kA | 40kA | ||||||
| Protection level | Up | 2.8kV | 3.0kV | 3.5kV | 5.5 kV | ||||||
| Rated shortcircuit current | IscCI | 100A | |||||||||
| lcpv | 0.2 mA | ||||||||||
| Connection mode | paralle | ||||||||||
| Response Time | tA | 25ns | |||||||||
| Back up fuse | LT-SSD40 | ||||||||||
| Remotecommunication | With | ||||||||||
| Remote communication connection | 1411:NO,1112:NC | ||||||||||
| Remote contact rated current | 220V/0.5A | ||||||||||
| Associateddisconnectors | |||||||||||
| Thermal disconnector | internal | ||||||||||
| Fuses | Fuses type gG100A | ||||||||||
| ground fault breaker | None | ||||||||||
| Mechnicalcharacteristics | |||||||||||
| Connection | By screw terminals:6-35mm | ||||||||||
| Terminal Screw Torque | 2.5 Nm | ||||||||||
| RecommendedCable cross Section | ≥16mm² | ||||||||||
| Insertwire length | 15mm | ||||||||||
| Mounting | DIN rail 35mm (EN60715) | ||||||||||
| Degree of Protection | IP20 | ||||||||||
| Housing | PBT | ||||||||||
| Flame retardant grade | UL94 V0 | ||||||||||
| Operating temperature | -40ºC~+70ºC | ||||||||||
| Operatingrelative humidity | 5%-95% | ||||||||||
| Working atmospheric pressure | 70kPa~106kPa | ||||||||||
| Connection | By screw terminals:6-35mm | ||||||||||
Selection of SPD:
When designing a power distribution system, it is pivotal to identify the key characteristics that define a robust lightning protection system. These characteristics help in the precise selection of a Surge Protection Device (SPD) to safeguard the electrical installations within a building:
For electrical installations, some characteristics for SPD selection are already predefined, ensuring optimal performance.
This sub-section Design of the electrical installation protection system elaborates comprehensively on the selection criteria of protection systems, taking into account the installation's characteristics, the equipment needing protection, and the surrounding environment.
Location and types of SPD:
Connection of SPD:
To ensure optimal protection, the SPD connections to the loads must be as concise as possible. This minimizes the voltage protection level (installed Up) across the terminals of the equipment under protection.
The cumulative length of SPD connections to both the network and the earth terminal block should remain within 50 cm to maintain efficiency.
SPD in plastic enclosure SPD in metal enclosure
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