solid state overload relay SSR-AAH 4B3991 1. Over-current and loading short circuit result in SSR permanent damage. Quick fuse is one of the over-current protection methods. Small capacity may also adopt fuse. Over-voltage protection adopts parallel connection metal oxide varistor (MOV) as well as RC absorbing return inside SSR. The area size of MOV determines the absorbing power. The thickness of MOV determines protective voltage value. Generally, 220V series SSR may choose varistor of 500-630 VDC, 380V series SSR may choose varistor of 700-900VDC. solid state overload relay SSR-AAH 4B3991 2. If ambient temperature is too high, the loading capacity of SSR will descend. If the ambient temperature is high or the heat radiation is bad, the chosen SSR should be kept a certain margin. 3. The resistance load should not surpass 60% of rated current. The inductance load should not surpass 40% of rated current. solid state overload relay SSR-AAH 4B3991 With similar foreign products have the exact same functionality For special products please send the product workflow and demand If the products have any upgrades, we do not notice. Download product details Including the size,Installation information and product functionality information —————————————————————————————————————————————————- We are searching for products agent and dealer. have our own factory. We have the ability of written software and die sinking of developing new products. More reliable products Large number using the MCU our products,We hope that you allow us to get a new product development,This will enable us to be more long-term cooperation,If you now or in future will purchase these products, please downloads PDF,We look forward to your mail,We will offer you the best products and service,we products include 24h Timer,Timer Relay,Digital Timer,Counter,Floatless Relay,Sockets,proximity switch,photoelectric switch,solid state relay,solid state overload relay SSR-AAH 4B3991,Switch power supply,Rev.preventing relay. Shopping: 1. We can shipping all over the world by DHL , TNT ,UPS , FedEx and EMS . The packaging is very safe and strong. If you have any special needs please nitfy me. 2. If you choose the DHL.It will take around 1-3days to reach your shipment No. If you choose the others,it will take around 3-5 days to reach your shipment No. Warranty & Guarantee : All components we sell the quality with 30 days Return policy from the day of shipment. If you have any other questions please feel free to contact with me in any time.
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