MA Series 3 Phase Breakers

The MA was designed to handle the high inrush loads of 3 phase trans formers, power sup plies, motors, etc. The MA protects wiring and equipment from damage caused by the three major classes of over-cur rent, yet greatly reduces the number of nuisance trips in high start ing and inrush current circuits. An IEC device with excellent ratings under a UL listing at 480Y/277V (including group ratings) and at 500V under international standards, the Altech/ABL Sursum MA pro vides short and long term cost effective circuit protection for USA and/or export applications. The short term ad vantages include: (1) ad just able thermal trip allows finalization of initial de signs be fore procurement of the load equipment is complete; (2) snap-on mounting for readily available, internationally standardized DIN Rail saves panel layout design time as well as installation and change labor; (3) large cage-clamp terminals with screws suit able to power screw drivers, simplifies and speeds wiring; (4) convenient switched disconnect during factory test ing and/or initial start-up saves time and aggravation. The key long term advantage is customer satisfaction and proven over-cur rent pro-tection of wiring and equipment (and the lack of rework/re pair costs).