Surge Protection Devices

SPDs protect electrical and electronic equipment against transients, originating from lightning, switching of transformers, lighting and motors. These transients can cause premature ageing of equipment, downtime, or complete destruction of electronic components and materials.

SPDs are strongly recommended on installations that are exposed to transients, to protect sensitive and expensive electrical equipment such as: TV, video, washing machines, Hi-Fi, PC and alarms etc.

The choice of SPD depends on a number of criteria such as:

• The exposure of the building to transients.
  
• The sensitivity and value of the electrical equipment that requires protection.
  
• Earthing system.
  
• Level of protection.
  

The range of SPDs is separated into 2 types of protection:

1. Main protection - class 2 SPDs with higher discharge current (Imax 8/20), to evacuate as much of the transient to earth as possible.

2. Fine protection - class 2 + 3 SPDs with low voltage protection level (Up ≤ 1000V), to cut-down the transient surge as low as possible to protect very sensitive equipment.

Our low voltage protection level surge protection devices protect very sensitive electronic equipment. This fine protection complements the main protection and can protect 1 or many electronic devices. Optimal co-ordination is obtained when cascaded with a main protection device.

Connection Capacity - Terminal blocks L, N & E:

• Rigid conductor: 10mm²
  
• Flexible conductor: 6mm²