NS 40N
Standard Duty Drawn Arc
NS 40N. two wire.
Gun Capacity : 5/8"(16mm)
Length : 7-1/2"(190mm)
Weight w/o cables : 1.4Kg
Weight : 2.1kg(w/working weight of cable)

NS 40SCN
Short Cycle
NS 40SCN. two wire.
Gun Capacity : 3/8"(10mm)
Length : 7-1/2"(190mm)
Weight w/o cables?: 1.6Kg
Weight : 2.4kg(w/working weight of cable)

NS 20N HD
Heavy Duty
NS 20N HD. two wire.
Gun Capacity : 1-1/4"(32mm)
Length : 13"(330mm)
Weight w/o cables : 3.4Kg
Weight : 4.7kg(w/working weight of cable)