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When does the Resi9 SPD need to be replaced?

FAQ000264974

02 February 2024

The Resi9 surge protection device (SPD) comes with an end of life indication flag on the front face.
When the flag is white, the product will continue to help protect the installation against surges.
Resi9 NZ faq2However when the flag turns red, the SPD cartridge needs to be replaced to continue to protect the installation against surge currents.
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