CM90642OONO Lauritz Knudsen MCCB dsine DN1 - 200 A, 4 Pole, 25 kA, Thermal-Magnetic Release

The Lauritz Knudsen CM90642OONO is a 4-pole moulded case circuit breaker rated at 200A with 25kA breaking capacity. It is fitted with a thermal-magnetic release for overload and short-circuit protection and belongs to the dsine DN1 frame. It is used for protection of LT distribution circuits in industrial and commercial installations.

Choose the Lauritz Knudsen CM90642OONO when your circuit needs 200A protection and the prospective fault current at the point of installation is within 25kA. It gives overload and short-circuit protection in one device. Accessories for remote tripping, status indication and operation differ by frame, so confirm the accessory list for this frame in the Lauritz Knudsen catalogue.

The Lauritz Knudsen CM90642OONO is used as an incoming or outgoing breaker in main distribution boards (MDBs), sub-distribution boards (SDBs), motor control centers (MCCs), power control centers (PCCs) and feeder circuits, for loads up to 200A.

MCCBs of this type are commonly fitted with a shunt release for remote tripping, an undervoltage release, auxiliary and alarm contacts for status signalling, a motor operator for remote switching, rotary handles for door-mounted operation, extended or spreader terminals, and padlocking devices. Availability depends on the frame size, so check the Lauritz Knudsen accessory list for the CM90642OONO before ordering.

A thermal magnetic release uses a bimetal for overload and an electromagnet for short-circuit protection. It is simple and cost-effective for standard feeders. An electronic or microprocessor release measures current electronically and offers adjustable overload, short-circuit and, on some versions, earth fault settings. It is preferred where finer coordination between breakers is needed. Lauritz Knudsen names its microprocessor releases MTX on dsine DN breakers and iTRP on dsine DZ breakers.

Calculate the prospective short-circuit current at the point of installation from the transformer kVA and percentage impedance (plus the upstream fault level), reduced by the cable impedance in between, then select an MCCB whose breaking capacity (Icu) at your system voltage (415V) is at least that value. Where supply must continue after a fault, check the service breaking capacity (Ics) too. Breaking capacity versions differ by brand and frame size, so always read the kA value for the exact model. In the Lauritz Knudsen dsine DN and DZ ranges the letter in the type designation shows the Icu at 415V AC: C = 25kA, D = 36kA, N = 50kA, S = 70kA, H = 80kA. Other Lauritz Knudsen MCCB ranges use the letters differently, so always read the kA value stated for the exact model.

Yes, the Lauritz Knudsen CM90642OONO (MCCB dsine DN1 - 200 A, 4 Pole, 25 kA, Thermal-Magnetic Release) is listed on VendorStocks. Add it to your cart and choose “Continue to Buy”, or contact VendorStocks at +91 99021 83031 or support@skylightsenergy.in for a quotation, bulk quantities and delivery to your site in India.

You can buy the Lauritz Knudsen CM90642OONO online on VendorStocks, the B2B electrical marketplace from Skylights Energy, Bangalore. The VendorStocks team can help with product selection.

Yes, VendorStocks takes bulk and project-quantity orders for the Lauritz Knudsen CM90642OONO. Contact VendorStocks at +91 99021 83031 or support@skylightsenergy.in with your required quantity for a quotation on the full quantity and delivery to your site or panel manufacturing unit.

Yes. Contact VendorStocks at +91 99021 83031 or support@skylightsenergy.in with your quantity for a formal quotation on the Lauritz Knudsen CM90642OONO, or add it to your cart and choose “Continue to Buy” to order directly. For a project with several items, email your BOM (Bill of Materials) to support@skylightsenergy.in for a single consolidated quote.

Yes, you can request the Lauritz Knudsen datasheet for the CM90642OONO from VendorStocks at +91 99021 83031 or support@skylightsenergy.in.

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