Trabtech’s SEC Range of Surge and Lightning protection products.

Everybody knows how important it is to protect your electronic equipment from lighting and power surges, but how do you know what protection to use and the correct location to install it? We take a look at answering those questions below in this quick guide to the dynamics of mains surge and lightning protection.

Multi-stage Protection

Lightning current arrester type 1 with integrated back-up fuse (Hybrid):

Type 1 Hybrid

• For use in LPZ 0_A.(Lightning Protection Zone)
• Located upstream or downstream of the circuit breaker of low voltage distribution boards with large current loads.
• This product is used where fusing is necessary (systems >315A) This product is a great space saver.
• The user does not have to calculate fuse sizing.
• Available as single units or as a 240/415/690 VAC (TN-C) unit and 400VAC (IT) unit.
• Must be coordinated with Type 2 units (SEC range for guaranteed performance).

Lightning current arrester type 1:

Type 1

• For use in LPZ 0_A
• Located in the main incomer of a building.
• Available as a 240/415/690 VAC (TN-S,TN-C and TT) unit.
• Back-up Fuse Free application for systems <=315A.
• Must be coordinated with Type 2 units (SEC range for  guaranteed performance).

Lightning current and surge arrester type 1 + type 2:

Type 1 + Type 2

• For use in LPZ 0_A
• Located in the main incomer of a building where there are no secondary DB’s.
• Available as a 240/415 VAC (TN-S,TN-C and TT) unit.
• Back-up Fuse Free application for systems <=315A.
• May be coordinated with Type 3 units (SEC range for guaranteed performance).

Surge arrester type 2:

Type 2

• For use in LPZ 0_b and LPZ 1.
• For use in secondary DB’s.
• Available as a 240/415/690 VAC (TN-S,TN-C and TT) unit.
• Back-up Fuse Free application for systems <=315A.
• May be coordinated with Type 3 units (SEC range for guaranteed performance).
• Also available for DC applications 48VDC to 400VDC.

Device protection type 3:

Type 3

• For use in LPZ 2 and 3.
• Must be coordinated with Type 2 units (SEC range for guaranteed performance).
• Located as close as possible to the equipment to be protected.
• Single and Three phase units available.
• Available in 240/120/60/24V for AC and DC applications.
• May be connected in series on loads up to 26A or may be connected in parallel.

For further information or technical help please contact Tony Rayner – Mobile +27 83 4415231 or email tonyr@phoenixcontact.co.za.

Tony Rayner