$11.39 – Product certification: CE, Coil voltage: 1000V, Environment temperature: -40℃~+85℃, Number of main contact poles: 2, Protection type: fuse, Shell material: reinforced flame retardant PBT, Brand: CHSZDEXI, Rated current: 40KA, Waterproof: IP20, Rated voltage: 1000V, Model: HDY1-40, Voltage protection: 1.5KV / 1.8KV / 2.2KV, Connection method: terminal, Name: 2P20KA DC surge protector, Installation method: rail type, Arc extinguishing medium: insulator, Setting current: 20KA.
CHSZDEXI 2P20KA DC 1000V Electric Surge Protector Circuit Breaker is for $11.39 (in Banggood). Basically copy coupon, view price history or create e-mail price alert. What is best price?
Latest coupon and price update (UTC):
Banggood ($11.39)
Banggood warehouse is located in China. The question is – is it a good price? Well, this price is higher than average price ($9.49) I found coupon for you. Check this out.
Link: Banggood product page
Price without coupon: $11.99
1. ($11.39): BGACCES5
coupon code has to be applied in shop’s cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BG589b2e
(I don’t think these’re gonna work, but you can try ’em out anyway)
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Do you need price history chart (for all/most countries) for CHSZDEXI 2P20KA DC 1000V Electric Surge Protector Circuit Breaker? There we go. The lowest price was: $7.99.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).