outdoor surge protective device by type1 three phase power total
width 72mm
Brief introduction
Surge protector is the lightning protection measures taken by
Zhejiang toer Electric Co., Ltd. for the electrical system. It
mainly plays the role of protecting the line from lightning
protection and overvoltage protection. The circuit protection is
made up of a powerful diode solid state discharge tube; basic and
fine protection is based on automatic fault protection device
technology. In thermal overload, the device moves the two ends of
the original lightning protection together, thus causing the damage
of the 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.
Product features
1. copper fittings have good electrical conductivity
2. fastening slideway buckle design is very difficult to fall off
3. traffic flow to further improve safety
Use of attention
1. marking the extra voltage drop caused by device terminals.
2. generally speaking, it is better to separate the protected
conductor from the non protected conductor, and it should be
separated from the ground wire. At the same time, in order to avoid
transient orthogonal coupling between power cables and
communication cables, necessary measurements should be made.
3. lightning arresters are connected in series between protected
equipment
Product specification
1. Rated Operating Voitage(UC):275V
2. Voltage protective level(UP):1.2KV
3. Impuise current(LIM):12.5KA
4. Operating Frequency: 50HZ
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 arrester is to reduce the voltage value of the protected
equipment by the action of parallel discharge gap or nonlinear
resistance, so as to protect the power equipment.
Company profile
Thor is following the international quality system standards, is
ISO 9001 certified and our technical standards are in line with
GB18802.1-2011/IEC61643-1.
All types and classes of our lightning and surge arresters
20KA~200KA(8/20μS) and 15KA~50KA(10/350μS) are tested and pass all
the requirements based on their class.
