Westhomes Product Description General WCM9Z series photovoltaic dedicated DC Moulded case circuit breakers are suitable for DC grid circuits with rated voltage up to DC1500V and rated current 630A. The DC circuit breakers have overload long-delay protection. Short-circuit instantaneous protection function is used to distribute electric energy and protect lines and power equipment from overload, short-circuit and other faults. The operating mechanism of the DC circuit breaker has quick closing and quick breaking functions. It has a compact structure, small size and is easy to use. This product complies with the requirements of GB 14048.2 and IEC/EN 60947-2 standards. WCM9Z Pole: 2P, 3P Voltage: DC 1000V/1250V/1500V kA: Ue1000v 20kA, Ue1500v 15kA Inm(A): 250A, 630A In(A): 100/125/140/160/180/200/225/250/320/350/400/500/630A Model WCM9Z WCM9Z WCM9Z Rated operating voltage(Ue) DC1000V DC1250V DC1500V DC1000V DC1250V DC1500V Rated insulation voltage (Ui) 1500V 1500V 1500V Rated impulse voltage (Uimp) 12kV 12kV 12kV Number of poles 2 3 4 Trip unit type Thermomagnetic type (thermal magnet is not adjustable) TMD Fixed Frame rated current (Inm) 250A 630A Rated operating current (In) 100/125/140/160/180/200/225/250A 320/350/400/500/630A Rated ultimate short circuit breaking capacity (lcu) Ue1000v 20kA Ue1500v 15kA, Ue1250v 20kA Ue1250/1500v 15kA, Ue1000v 20kA Operational breaking capacity (Ics) 75%ICU Ue1500v 15kA, Ue1250v 20kA Ue1250/1500v 15kA, Ue1000v 20kA Protective function Long time delay protection (Ir) 1In Instant protection (li) 6In(Min1000A) Service life Mechanical 10000times 5000times Electrical 1000times 500times Installation type Fixed Fixed Fixed Protection level Wiring port: IP20/All sides: IP40 Operating temperature -40ºC~+75ºC Operating Instructions ON/OFF instruction Is the release adjustable? NO Isolation function YES Product Catalog Recommended products Our Advantages Shipping FAQ Frequently Asked Question (FAQ) Q: About the company A: Westhomes® is a professional manufacturer for low voltage and high voltage electrical products with a thirty-year history. Main supplier of state-owned companies like China Stae Grid, China Southern Power Grid through bidding with bunches of test certificates, sales records and operation performance to support. Enough investment for research and development for the products innovation. Q: About Warranty A: 18 months from the date of receivement Q: About shipment method A: Depends on the required quantity and delivery urgency, both international express like UPS / DHL / EMS / HK EMS / FedEx / TNT (door to door service) and normal sea shipping & air freight also avaliable. Q: About MOQ A: Up to the client Q: About payment method A: We accept T/T, Paypal, Western union, L/C. Normally 30% payment in advance, 70% before delivery. Q: About ordering process A: First to send an inquiry via made-in-china platform or directly to the contact e-mail address. All the following thing is the communication between us.