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March 16, 2018


ABB provides 3Phase circuit breaker with AC3 rating of 320A amperes. The general part number of the mccb (circuit breaker) is T5H TMA 320A. The ordering code for the same shall be 1SDA054444R1 320A for 3 pole MCCB and 1SDA054481R1 for 4 pole circuit breaker. This circuit breaker can be used for both 50Hz and 60Hz. The MCCB  comes with a thermal magnetic release (TMA) and belongs to TMA frame size with 70ka breaking capacity.

The mccb is suitable for a load of 320A in three phase under AC-3 utilization category. These circuit breakers are suitable for 690V AC and 500V DC operation. The ABB TMA  series MCCB are IEC and UL certified and follow international norms.


Ordering Code  1SDA054444R1(3P) /1SDA054481R1(4P)
Product Name T5H TMA 320A
Brand Name ABB
Series TMA  T5H
Ampere (AC3) 320A
Poles 3/4
Breaking Capacity 70ka
Rated Operational Voltage 690 V AC/ 750 V DC
Operation AC and DC
Type of Release TMA
HxWxD (mm) 205x186x103.5
Weight (in kg)  5.8kg
Standards Applicable  UL,IEC60947-2, ISI

ABB T1 MCCB MCCB T5H TMA  (320A ) is used to protect an electrical circuit from damage if current is more than  320A. Similar MCCBs can be found in  other brands like Siemens, L&T, GE, BCH, Havells, Schneider 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, switchgears – contactors, overload relays, circuit breaker, switches, fuses, changeovers  etc, carbon brushes, electric motors, wires and cables from all leading brands.We also export switchgears to different countries including 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 ABB Tmax MCCB catalog: ABB TMAX MCCB CATALOG (665 downloads)

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