Zhejiang THOR Electric Co., Ltd
Professional Manufacturer for surge protection device.
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DC surge protector for industrial production, 385v power protector, high voltage cabinet.
Product introduction
The surge protector is a lightning protection measure adopted by Zhejiang toer Electric Co., Ltd. for the electrical system. It is a lightning protection measure used in the circuit system. It is an important manifestation of internal lightning protection.
The device is protected from overvoltage damage caused by system induced lightning and electrostatic discharge, and effectively protects against surge and overvoltage protection.
Working principle of product
During the operation of the equipment, the lightning arrester will play a protective role once the abnormal voltage occurs. When the protected device is running under normal working voltage, the arrester will not work, and it will be regarded as a circuit for the ground. Once the high voltage is present and the insulation of the protected equipment is endangered, the lightning arrester acts immediately and leads the high voltage impact current to the earth, thus limiting the amplitude of the voltage and protecting the insulation of the electrical equipment.
When the overvoltage is gone, the arrester is restored to its original state quickly, so that the system can supply electricity normally. The main function of the lightning arrester is to reduce the voltage value of the protected equipment through the action of parallel discharge gap or nonlinear resistance, and to reduce the voltage value of the protected equipment, so as to protect the power equipment.
Product specification
| Model and specofocation | TRS4-D20 | TRS4-C40 | TRS4-B60 | ||||
| Rated Operating Voltage | Un | 220V/380V | |||||
| Max continuous operating voltage | Uc | 385V AC | |||||
| Voltage protective level | Up(KV)≤ | 1.5 | 1.8 | 2.0 | |||
| Max discharge current | Imax(8/20μS) | 20kA | 40kA | 60kA | |||
| Nominal discharge current | In(8/20μS) | 10kA | 20kA | 30kA | |||
| Response time | ns | 〈25 | |||||
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Ingress Protection Rating
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IP20 | ||||||
| Indication of invalidation | Aging invalidation:green Normal,red:Invaldation | ||||||
| Configuration dimension | Three-phase four-wire:72×62×90 | ||||||
| Application | Primary protection for in line | ||||||
| Operating condition | Temp:-40℃~+70℃ | ||||||
| RH≤95%(25℃) | |||||||
| Sea level elevation≤3km | |||||||
| Remote signal function | Can also picking | ||||||
| Remarks | Other max continuous operating voltage can be customized |
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Product features
1. high-performance chips can react quickly when problems arise.
2. cut off the line when undervoltage occurs, and reset automatically after restoration.
3. fastening slideway buckle design is very difficult to fall off
4. leakage current is small, the response time is fast, and the residual pressure is low
Notice of product
1. in order to limit the inductive coupling between the protected part after installation and the part of the unprotected equipment, we need to make some measurements. The mutual inductance can be reduced by the separation of the inductive source and the sacrificial circuit, the selection of the loop angle and the limitation of the closed loop area.
2. in order to avoid unnecessary induction loops, we should mark the PE conductor of each device.
3. determine the discharge current path
4. when installing, pay attention to the cable entering and leaving the surge protector. The cables should be separated to avoid the two coupling of surge.
Product Installation
With 35mm standard DIN-rail mounting, connecting copper stranded conductor is 2.5~35mm²
At front of spd each pole must be setted protection---used fuse or miniature circuit breaker lightning current SPD protection,after SPD breakdown to short circuit protection.
SPD install on protected line(equipment) to the front and connected to the supply line. A class products install in the building home-entry line hold larger surge current total distribution box. B, C class products most install on the floor distribution box, D class products close to the front-end equipment that smaller surge current, smaller residual voltage place.
Company profile
Thor is all about protecting against the damaging effects of power transients. It is our goal and mission to connect our customer challenges with high-quality, right-priced solutions and products – completed by unrivaled customer service and technical support.