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Lightning Arrestors

A PV system typically is mounted such that it is vulnerable to lightning. A flash of lightning is an electrical arc from the earth to a cloud that is the result of an electrical potential between the earth and the cloud. The resistance between the earth and the cloud is the ohmic resistance of air, hence the ohmic resistance will be less for a device that is physically above the earths surface (less distance to the cloud). By connecting a PV array to earth via a grounding conductor a path is provided for the discharge current.

For more information on Lightning Arrestors, visit our toolbox section here.



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Citel DC Surge Protector - 24 VDC DIN Rail
Product ID: DS210-24DC

Details 

The DS210 provides protection to off-grid solar photovoltaic installations agains the direct and indirect effects of lightning.  DIN rail mountable inside inverter cabinets or combiner bo...

List Price: $122.00
Price: $101.75
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Citel DC Surge Protector - 48 VDC DIN Rail
Product ID: DS210-48DC

Details 

The DS210 provides protection to off-grid solar photovoltaic installations agains the direct and indirect effects of lightning.  DIN rail mountable inside inverter cabinets or combiner bo...

List Price: $122.00
Price: $101.75
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Citel DC Surge Protector - 600 VDC DIN Rail
Product ID: DS50PV-600

Details 

The DS50PV provides protection to grid tied solar photovoltaic installations agains the direct and indirect effects of lightning.  DIN rail mountable inside inverter cabinets or combiner boxes...

List Price: $129.00
Price: $108.90
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Delta 500 VDC Lightning Arrestor
Product ID: LA302DC

Details 

The Delta LA 302 DC lightning arrestor  is for use on DC systems max 500 V.  3 wire connection (+ve, -ve, and ground)
Price: $53.30
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Delta 300 VAC Lightning Arrestor
Product ID: LA302R

Details 

The Delta LA 302R is for use on 125-230 volt three wire single phase AC systems.  3 wire, 18" leads.
Price: $49.40
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Delta 300 VAC Lightning Arrestor with Separate Ground
Product ID: LA302RG

Details 

The Delta LA 302R is for use on 125-230 volt three wire single phase AC systems.  4 wire, 302R with separate ground, 18" leads.
Price: $51.40
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Delta 300 VAC Lightning Arrestor - 3 Phase
Product ID: LA303

Details 

The Delta LA 303 Lightning Arrestor for use on three phase AC systems (wind turbines).  4 wire, 18" leads.
Price: $57.89
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Delta DC Lightning Arrestor: 0 - 600 VDC, 3 Wire
Product ID: LA602DC

Details 

The Delta LA Series handles the big surges, like lightning up to 50,000 amps, passing them harmlessly to ground.

Price: $57.20
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