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L&T MCCB DN3-400N(250-320A)
December 17, 2011

L&T MCCB DN3-400N(250-320A)

L&T provides the 3Phase circuit breaker with AC3 rating of (250-320A) amperes. The general part number of the mccb (circuit breaker) is DN3-400D (250-320A) The ordering code for the same shall be CM94003OOQ1OG (250-320A) for 3 pole MCCB and CM94103OOQ1OG for 4 pole circuit breaker. This circuit breaker can be used for both 50Hz and 60Hz. The MCCB  comes with a thermal magnetic release and belongs to DN3 frame size with 50ka breaking capacity.

The mccb is suitable for a load of (250-320A) in three phase under AC-3 utilization category. These circuit breakers are suitable for (250-320A) AC operation. The L&T (250-320A) DN3 series MCCB are IEC and UL certified and follow international norms.

Ordering Code  CM94003OOQ1OG(3P) /CM94103OOQ1OG(4P)
Product Name DN3-400N(250-320A)
Brand Name L&T
Series DSine DN3
Ampere (AC3) (250-320A)
Poles 3/4
Breaking Capacity 50ka
Rated Operational Voltage 690 V AC
Operation AC
Type of Release Thermal Magnetic Release
Standards Applicable  UL,IEC60947-2, ISI


L&T DN3-400N(250-320A) is used to protect an electrical circuit from damage if the current is more than 100A. Similar MCCBs can be found in other brands like Siemens, GE, BCH, Havells, Schneider, ABB etc.

You can also send your requirements directly to us at : Send Enquiry

KMIC deals in all kinds of electrical goods including, but not limited to, switchgear – contactors, overload relays, circuit breaker, switches, fuses, changeovers etc, carbon brushes, electric motors, wires, and cables from all leading brands. We also export switchgear to 25+ countries including Saudi Arabia, Oman, Dubai, US, etc.

Generally, the required electrical goods are dispatched within 24-48 hours of receiving of the purchase order and are delivered by hand/cargo/courier/transport depending on the location.

Please note: All products sold by KMIC are brand new and 100% genuine.

Please call us (at +91-9971138071) or write us back (at contactus@kmindustrialcorp.com) for feedback or any queries.

Click here to download the L&T Dsine DN0 MCCB catalog: L&T DSINE MCCBs (1035 downloads)

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