What size breaker for SDSA1175?

What size breaker for SDSA1175?

2-pole 20A
The recommended installation of the SDSA1175 is to be connected to a 2-pole 20A branch circuit breaker (installed as close as possible to the main lugs or main breaker).

What is Type 1 surge protection?

Type 1 surge products are permanently connected devices that are installed before or after a main disconnect. These devices can be used as replacements for what were previously known as secondary surge arrestors or lightning arrestors. Applications Include: • Loadcenters/Electrical Panels.

What is the difference between Type 1 and Type 2 surge protector?

Type 1 SPD is characterized by a 10/350 µs current wave. The Type 2 SPD is the main protection system for all low voltage electrical installations. Installed in each electrical switchboard, it prevents the spread of overvoltages in the electrical installations and protects the loads.

What is the difference between Type 1 and Type 2 SPD?

Type 1 – SPD which can discharge partial lightning current with a typical waveform 10/350 μs. Usually employs spark gap technology. Type 2 – SPD which can prevent the spread of over- voltages in the electrical installations and protects equipment connected to it.

How do you size a surge protector breaker?

Essentially, the circuit breaker must be sized to the protector’s wire size and the electrical panel’s ratings. For example, a surge protector with 10 AWG wires should be used with a breaker rated at 30A. The circuit breaker’s ratings (interrupt rating, voltage rating) must also be suitable for the panel.

What size MCB for a SPD?

10 requires a type 2 SPD to have an earthing conductor with a CSA of 6mm2 and for its supply conductors to be appropriately rated for the breaker in use, but to be of a size of no less than 2.5mm2, so you can use 2.5mm2 for a 16 or 20A MCB, maybe bob up to 4mm2 or 6mm2 if hanging off a 32A, although I probably wouldn’t …