ABB 2CSM110299R1041 SCL 1/500 Scale for analogue ammeter

SCL 1/500 is a scale for analogue ammeter employed in ac networks. 500A high full scale

ABB 2CSM110149R1041 SCL 1/50 Scale for analogue ammeter

SCL 1/50 is a scale for analogue ammeter employed in ac networks. 50A high full scale