Gauges Figure C4A, C4B, C4C and C4D of NF C 61-314

Gauges for minimum opening contact tubes:
NF C 61-314 C4A (3.94mm, 300/150g;
NF C 61-314 C4B (3.80mm, 400/200g);
NF C 61-314 C4C (4.60mm, 400/200g);
NF C 61-314 C4D (4.86mm, 2500g)

Figure C4A, C4B, C4C And C4D of NF C 61-31