QSA Isolating Switch Fuse

 

Applications:
Used to cabinet and drawer electrical controlling sets of equipment. Used as power switch isolating switch and emergency switch to protect circuit in distribution circuit and motor circuit, particularly the high-short circuit of AC 50-60Hz, the rated operational current 63-630A, rated operational voltage 660V below, current voltage 220V or 440V. Conformed to AC-21, AC-22, AC-23. It conforms to IEC60947-3.

Specifications:

Model	QSA63	QSA125	QSA160	QSA250	QSA400	QSA630
Number of Main Poles	2,3,4					2,3
Rated Insulation Voltage(V)	1000
Rated Operational Voltage(V)	AC:380V 660V  DC:220V 440V
Rated Conventional Themal Current lth(A)	80	160	160	400	400	800
Rated Enclosed Thermal Current I the (A)	63	125	160	250	400	630
Rated Operational Current(le)/power AC
380V cos0.35 AC23(A/KW)	63/30	125/75	160/90	250/132	400/200	630/333
380V cos0.35 AC23(A/KW)	63/55	125/110	160/150	250/220	400/375	630/560
Rated Fused Short-Circuit Current(KA.m.s)	100(380V)
	50(660V)
Max. Fuse-Link(A)	160			400		630
Mechanical Endurance (Operations)	15000		12000			3000
Electrical Endurance (Operations)	1000		300		200
Weight (kg)	1.6	1.7	4.1	4.5	4.7	14.0
Fuse Type NT (RT16)(size)	00			1-2		3
Required Torque(Nm)	7.5		16		60
Auxiliary Switch(380V AC-15) (220VDC-13A)	4				6
Switched Neutral Pole lth/le(220VDC-13A)	63/63	125/125	160/160	250/250	400/400	D
Neutral Link Lthe(A)	63	125	160	250	400	630

---

Previous Page: Isolating Switch Fuse
Next Page: Fuse Disconnector
Keyword: QSA Isolating Switch Fuse Fuse Fuses Isolating Switch Isolating Switches