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MidniteSolar popular SPD 300AC Surge Arrestor along with MidniteSolar new Flush mount box. Listed by ETL for US & Canada. This allows for easy and clean installation of Surge suppression in both new and existing construction where all of the electrical boxes are flush mounted. Comes complete with 18 inches of metallic flex conduit and fittings.

Environmental Rating – Enclosure Type 1, STD Type 4X (Outdoor)

Made in the USA

Size: 21.50cm x 16.50cm x 10cm
Box Size: 42cm x 32cm x 21.50cm
Weight: 3kg


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Midnite Solar Surge Protection Device
Nominal Voltage0 to 90 VAC0 to 250 VAC (AC model)0 to 485 VAC
0 to 115 VDC0 to 300 VDC (DC model)0 to 600 VDC
MCOV180V (162-198)470V (423-517)780V (702-858)
ClampV @100A295V775V1290V
Current 8/20μs
I peak (8/20μs)100kA (Full Device)100kA (Full Device)100kA (Full Device)
(Current)50kA (Each Section)50kA (Each Section)50kA (Each Section)
Energy Absorption1120 J (Full Device)3130 J (Full Device)4320 J (Full Device)
560 J (Each Section)1560 J (Each Section)2160 J (Each Section)
Suggestes PlacementUp to 90 VAC circuits, 12V, 24V, 48V DC battery circuits120/240VAC circuits, offgrid PV combiners and charge controller inputs up to 300VDC316V/480VAC circuits Grid tie PV combiners Grid tie inverter input
DiagnosticsSPD300 AC – LED indicators when voltage is present between L1+Ground and L2+Ground
SPD115, 300DC and 600 – LED indicators when voltage is present between DC+ and DC-
Operating Temperature Range-40°c to +85°c
Nominal Discharge Current INA20kA
Thermal Disconnector InternalInternal
Response Time<15n sec.


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