T2 With DIn Rail and FM functions Ac Power SPD
Model PC50-385/3+N

1.  Product features

Thermal disconnect device
High current capacity, quick response
Low residual voltage, free of leakage current
Remote warning 
50kA maximum surge current
Easy installation with Din rail mounting
Status indicators visually verify protection level
Plug connectors for quick and easy connection or rewiring

2. Applications

Protection of C class AC Power System
Protection of power distribution system
Protection of terminal devices
Sensitive electronic equipment
Telecom centers
Automatic control centers
Intelligent buildings
Industrial enterprises
Medical institutes

3. Technical data
 


SPD for Power Supply System Series Selection Guide
 
  The installation of SPD at each lightning protection zone, according to the standard of low voltage electrical appearance, make classification of electrical equipment in accordance with the over voltage category, its insulation withstand impulse voltage level can determine the selection of SPD. According to the standard of low voltage electrical appearance, make classification of electrical equipment in accordance with the over voltage category as signal level, loading level, distribution and control level, power supply level. Its insulation withstand impulse voltage level are:1500V,2500V,4000V,6000V. As per to the protected equipment installation position different and the different lightning current of different lightning protection zone, to determine the installation position of SPD for power supply and the break-over capacity.
  The installation distance between each level SPD should not more than 10m, the distance between SPD and protected equipment should as short as possible, not more than 10m. If due to limitation of installation position, can't guarantee the installation distance, then need to install decoupling component between each level SPD, make the after class SPD can be protected by the prior class SPD. In the low voltage power supply system, connecting an inductor can achieve the decoupling purpose. 
  SPD for power supply system specification selection principle 
  Max. continuous operating voltage: bigger than protected equipment, the system's max. continuous operating voltage. 
  TT System: Uc≥1.55Uo (Uo is low voltage system to null line voltage)
  TN System: Uc≥1.15Uo
  IT System: Uc≥1.15Uo(Uo is low voltage system to line voltage)
  Voltage Protection Level: less than the insulation withstand impulse voltage of protected equipment
  Rated discharge current: determined as per to the lightning situation of the position installed and lightning protection zone.