{"product_id":"40a-4-pole-c-curve-dc1000v-solar-type-mcb","title":"40A 4 Pole C Curve DC1000V (Solar) Type MCB (NB1-63DC-4P-C40)","description":"\u003cp data-start=\"211\" data-end=\"629\"\u003eThe \u003cstrong data-start=\"215\" data-end=\"262\"\u003e40A 4 Pole C Curve DC1000V (Solar) Type MCB\u003c\/strong\u003e (SKU: NB1-63DC-4P-C40) is a dependable DC miniature circuit breaker designed for use in solar photovoltaic and other direct current energy systems. Manufactured by CHINT, this 4-pole breaker provides strong protection in high-voltage DC environments up to 1000 V, making it an essential component for modern renewable energy installations and energy storage systems.\u003c\/p\u003e\n\u003cp data-start=\"631\" data-end=\"1057\"\u003eBuilt on the trusted NB1-63DC platform, this MCB features a \u003cstrong data-start=\"691\" data-end=\"722\"\u003eC-curve trip characteristic\u003c\/strong\u003e that balances sensitivity with robustness. The C-curve is ideal for general loads and common DC applications, helping to reduce nuisance tripping while still responding quickly to overloads and short-circuit faults. With a \u003cstrong data-start=\"946\" data-end=\"971\"\u003erated current of 40 A\u003c\/strong\u003e, it protects circuits from damage by interrupting excess current safely and reliably.\u003c\/p\u003e\n\u003cp data-start=\"1059\" data-end=\"1471\"\u003eThis unit is particularly suited for \u003cstrong data-start=\"1096\" data-end=\"1182\"\u003esolar PV arrays, battery systems, DC bus protection and other DC-powered equipment\u003c\/strong\u003e where maintaining system uptime and safety is crucial. The \u003cstrong data-start=\"1242\" data-end=\"1262\"\u003e1000 V DC rating\u003c\/strong\u003e provides a wide operating range for high-voltage installations, while the \u003cstrong data-start=\"1337\" data-end=\"1361\"\u003e4-pole configuration\u003c\/strong\u003e offers full protection of both positive and negative conductors in multi-string or centralised solar systems.\u003c\/p\u003e\n\u003cp data-start=\"1473\" data-end=\"1815\"\u003eThe compact, \u003cstrong data-start=\"1486\" data-end=\"1508\"\u003eDIN-rail mountable\u003c\/strong\u003e design allows for straightforward installation in combiner boxes, control panels and distribution boards, helping installers save valuable space. CHINT’s reputation for quality means this MCB meets recognised international safety standards and delivers consistent performance even under continuous DC load.\u003c\/p\u003e\n\u003cp data-start=\"1817\" data-end=\"2216\"\u003eIts robust construction supports long service life, while the clear switching mechanism makes operation simple and reliable. Whether you are specifying protective devices for a residential solar array, a commercial PV installation or a DC system requiring dependable overcurrent protection, the NB1-63DC-4P-C40 provides the confidence and performance you need for safe, efficient power distribution.\u003c\/p\u003e","brand":"CHINT","offers":[{"title":"Default Title","offer_id":49267159105773,"sku":"NB1-63DC-4P-C40","price":36.16,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0758\/4861\/4125\/files\/NB1-63H-4P_10KA.jpg?v=1768834928","url":"https:\/\/callidustrade.co.uk\/products\/40a-4-pole-c-curve-dc1000v-solar-type-mcb","provider":"Callidus Trade B2B","version":"1.0","type":"link"}