HSN Circuit Breaker ANSI Ratings

H S N B R E A K E R R A T I N G S

The HSN Type circuit breakers manufactured by CP have been tested in both open and closed type housings and free standing, in accordance with ANSI, BS and IEC specifications:

• ANSI C37-14:1979 • ANSI C37-16:1980 • ANSI C37-17:1972 • ANSI C37-20:1974
• BS 5227:1975 • BS 4752:1977 • IEC 157:1976 • IEC 298:1981

Circuit Breaker Size	4000	6000	8000	10000	12000
Continuous Current Rating Max (A)	4000	6000	8000	10000	12000
Voltage Rating (V)	800/1600	800/1600	800/1600	800/-	800/-
Short Circuit Rating - Peak (kA Prospective)	200/100	200/100	200/100	160/-	135/-
Sustained (kA)	120/60	120/60	120/60	100/60	120/60
Short Time Withstand Current Ratings - 250ms	132/132	132/132	159/159	159/-	159/-
Overload Current Setting Range (kA)	4-16	6-24	8-32	10-40	12-48
Control Voltage (VDC)	125	125	125	125	125
Close Coil - Operating Voltage Range (VDC)	90-140	90-140	90-140	90-140	90-140
Close Coil - Current Average at 125VDC (A)	38.0	38.0	38.0	38.0	38.0
Trip Coil - Operating Voltage Range (VDC)	70-140	70-140	70-140	70-140	70-140
Close Coil - Current Average at 125VDC (A)	2.0	2.0	2.0	2.0	2.0

Short Circuit Rating and Performance to ANSI Requirements.
HSN switchgear is designed to meet the full requirements of ANSI specifications C37-16:1980 and C37-14:1979. Figure 1 below illustrates these requirements at 800 volts and also the compliance of the HSN switchgear which exceeds the requirements of all known applications. Typical ANSI C37-16 test “A” results are shown in Figure 2.

Type Tests carried out at 1600 volts exceeds the requirements of ANSI C37-16:1980 table 11A. As applications having longer time constants develop, proving tests are being performed using the special equipment necessary.

• HSN MAIN INDEX:
• HSN OPTIONS:
• HSN DIMENSIONS:

• HSN CIRCUIT DIAGRAM:
• HSN ANSI RATINGS:
• HSN WEIGHTS: