Rated current of release (A)	Thermodynamic release (ambient temp+40°C)		Operational current of magnetic release (A)
	1.05In (cold state) inoperative time (h)	1.30In (heat state) inoperative time (h)
In ≤ 63	≥ 1	< 1	10In±20%
63 < In ≤ 100	≥ 2	< 2	10In±20%
100 < In ≤ 630	≥ 2	< 2	5-10In±20%

Rated Current of Release (A)	Thermodynamic release (ambient temp+40°C)				Operational current of magnetic release (A)
	1.0In (cold state) inoperative time	1.20In (heat state) operative time	1.50In (heat state) operative time	7.2In (heat state) operative time
12.5 ≤ In ≤ 400	≥2h	<2h	≤4min	2S<Tp≤10S	12In±20%

Type	Rated current(A)	Poles	Rated insulation voltage(V)	Rated operating voltage(V)	Arcing over distance(mm)	Ultimate short circuit breaking capacity	Servies short circuit breaking capacity	Operating performance (times)
								ON	OFF
NF-100D	12.5,16, 20,25,32, 40,50,63, 80,100	3,4	950	690	0	18	18	1500	8500
NF-100N						25	25
NF-100H						70	70
NF-160D	16,20,25, 32,40,50, 63,80,100, 125,160					25	25	1500	7000
NF-160N						36	36
NF-160H						70	70
NF-250D	160,180, 200,225, 250					25	25	1000	7000
NF-250N						36	36
NF-250H						70	70
NF-400D	200,225, 250,300, 315,400					35	35	1000	4000
NF-400N						45	45
NF-400H						70	70
NF-630D	315,350, 400,500, 600,630					35	35	1000	4000
NF-630N						45	45
NF-630H