Moulded Case Circuit Breaker (MCCB) - UL489 listed - NOARK (Ex9M4 series) - 2-poles in 3-poles case (3P2d) - Rated current 500A - Interrupting capacity 22kA (600Vac) - Lugs on both load and line sides - Thermal-Magnetic (adjustable) (AT/AM (Adjustable Thermal / Adjustable Magnetic)) trip unit - equivalent to 1100436