120LS Specs

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Specifications

ANSI/IEEE C62.41-2002
IEC 61643-1-1998
NEMA LS-1-1992

Branch Panel Protection

Model 120LS
Model 120LS	Service	Higher Headroom MOVs VAC	UL SVR 500A 8x20µs	6kV (1.2x50µs) 3kA (8x20µs)	20kV (1.2x50µs) 10kA (8x20µs)
-120S	120VAC, 1Ø, 2W+Gnd	180	500	550	660
-120T	120/240VAC, 1Ø, 3W+Gnd	180	500	550	660
-120Y	120/208, 3Ø, 4W+Gnd, Wye	180	500	550	660
-220Y	220/380, 3Ø, 4W+Gnd, Wye	390	1000	1110	1270
-240Y	240/415, 3Ø, 4W+Gnd, Wye	390	1000	1110	1270
-277Y	277/480, 3Ø, 4W+Gnd, Wye	390	1000	1110	1270
-347Y	347/600, 3Ø, 4W+Gnd, Wye	460	1200	1350	1580
-240DCT*	240/120/120, 3Ø, 4W+Gnd	390/180	1000/500	1110/550	1270/660
-240D	240, 3Ø, 3W+Gnd, Delta	390	1000	1110	1270
-480D	480, 3Ø, 3W+Gnd, Delta	620	1500	1640	1890
-600D	600, 3Ø, 3W+Gnd, Delta	750	1800	1830	2410
*High-leg Delta Center Tapped

Energy Absorption (8/20µs) in joules: 8,832 - 32,400J

MCG Surge Protection employs high headroom movs in our products to prevent damage to the surge protector from voltage swells on the AC power line. These swells are harmless to equipment but not to a surge protector without enough headroom designed into it. Using high headroom varistors allows the surge protector to "ride out' the swells without damaging the varistors. However, we understand that some applications require lower voltage varistors than what we provide with our standard products.

If your application requires the use of lower voltage varistors, please contact Sentinel Power, Inc at 1-800-784-7989 (US only) or 724-925-8181 and we will discuss your requirements with the factory.