
- FEATURED PRODUCTS
- Solar Panels
- Solar Power Systems
- Productos Solares en Puerto Rico
- Charge Controllers
- Inverters
- Deep Cycle Batteries
- Solar Panel Mounts
- MORE PRODUCTS
- Cables & Wiring
- Enclosures, Electrical & Safety
- Heat Pump Water Heaters
- Inverter Power Panels & PreWired Systems
- Meters, Communications & Site Analysis
- Portable Power Systems
- Solar Water Pumps
- Voltage Converters
- Wind Turbines
- Books & Educational Videos
- * Clearance Sale *
- Hot Deals
Delta LA302DC DC Lightning Arrestor, 500V
Item code | Brand name | Model number |
DELLA-DC | Delta Lightning Arrestors | LA302DC |
Delta
DC Lightning Arrestor
3 Wire, 500VDC
LA 302DC
Rapid response, high current Delta DC Lightning Arrestors protect your sensitive solar or wind energy systems from nearby lightning strikes. The Delta LA Series handles the big surges, like lightning up to 50,000 amps, passing them harmlessly to the ground. The once optional vent valve is now installed on every Delta DC lightning arrestor, which will keep the case from rupturing in the event of the arrestor taking a strike. A small vent on the bottom of the case will open.
While it is not possible to achieve 100% protection, Delta units will greatly reduce problems due to lightning, power surges and voltage spikes. The LA302DC model is ideal for photovoltaic and other limited current DC applications.
DELTA ARRESTORS:
- employ a non-conductive base to prevent a blown arrestor from creating a shock hazard
- do not cover adjacent equipment with carbon dust on failing, preventing damage to other equipment
- always fail "clear" to permit continued use of the power system
- are based on a silicon material to provide quicker operation at lower conduction resistance
- will pass a large number of high-energy surges and half-cycle spikes prior to failing
- feature extra long leads to ease installation
- have locknut and bushing furnished
- are available in a variety of voltages or number of poles
LA 302DC Specifications
Rated Voltage | Design Type | Surge Current | Max. Energy | Leads | Enclosure Rating | Dimensions |
500 VDC | Silicon Oxide Varistor™ | 60,000 amps | 2,000 Joules per pole |
18" #12 AWG | NEMA 4 | 2.25" Height, 2.25" Diameter |
Here are some tips from the altE staff
- How many lightning arrestors do I need in a solar system?
- Generally you want to put the lightning arrestor as close to the equipment you are trying to protect as possible. We also recommend that any additional equipment more than 60 ft away from the lightning arrestor have an additional lightning arrestor installed.