The Guide - MEM Technical Support

Circuit Breaker Data

Memshield 2 F Frame

Type of Device
Rated Voltage
Frequency
Short Circuit Category = Moulded Case Circuit Breaker (MCCB)
= 690 Volts AC
= 50/60 Hertz
= Icu 25/45/65kA (415 Volts)

Maximum Earth Loop Impedance Zs (OHMS):
In (A)	Socket Outlet Circuits (0.4 secs)			Fixed Appliance Circuits (5 secs)
In (A)	Standard	Adjustable S/C set to min.	Adjustable S/C set to max.	Standard	Adjustable S/C set to min.	Adjustable S/C set to max.
16	1.500	-	-	2.000	-	-
20	1.200	-	-	1.600	-	-
32	0.75	-	-	0.960	-	-
40	0.600	-	-	0.730	-	-
50	0.480	0.800	0.400	0.550	0.800	0.400
63	0.380	0.640	0.317	0.400	0.640	0.317
80	0.300	0.500	0.250	0.300	0.500	0.250
100	0.240	0.400	0.200	0.240	0.400	0.200
125	0.192	0.320	0.160	0.192	0.320	0.160
160	0.150	0.250	0.125	0.150	0.250	0.125
200	0.120	-	-	0.120	-	-

Disconnection Time/Current Data Standard:
Disconnection Time (s)	60.00	10.00	5.00	1.00	0.40	0.10
In (A)	Disconnection Current (A)
16	40.00	80.00	120.00	160.00	160.00	160.00
20	48.00	100.00	150.00	200.00	200.00	200.00
32	70.00	150.00	250.00	320.00	320.00	320.00
40	110.00	240.00	330.00	400.00	400.00	400.00
50	150.00	320.00	440.00	500.00	500.00	500.00
63	190.00	470.00	600.00	630.00	630.00	630.00
80	240.00	600.00	800.00	800.00	800.00	800.00
100	290.00	680.00	1000.00	1000.00	1000.00	1000.00
125	350.00	1000.00	1250.00	1250.00	1250.00	1250.00
160	480.00	1250.00	1600.00	1600.00	1600.00	1600.00
200	600.00	1600.00	2000.00	2000.00	2000.00	2000.00

MCCB Let Through Energy Data I²t (A² sec) F-Frame (Fixed Trip)
Fault Level (A)	Rating
Fault Level (A)	16A	20A	32A	40A	50A	63A	80A	100A	125A	160A	200A
45000	390,000	390,000	700,000	910,000	1,100,000	1,100,000	1,150,000	1,150,000	1,150,000	1,300,000	1,300,000
30000	350,000	350,000	600,000	750,000	830,000	830,000	920,000	920,000	920,000	1,100,000	1,100,000
25000	340,000	340,000	580,000	700,000	800,000	800,000	900,000	900,000	900,000	1,000,000	1,000,000
20000	310,000	310,000	480,000	580,000	650,000	650,000	700,000	700,000	700,000	800,000	800,000
16000	290,000	290,000	410,000	500,500	550,000	550,000	600,000	600,000	600,000	700,000	700,000
5000	120,000	120,000	130,000	140,000	145,000	145,000	148,000	148,000	148,000	150,000	150,000
3000	60,000	60,000	62,000	63,000	66,000	66,000	68,000	68,000	68,000	69,000	69,000
2000	35,000	35,000	35,000	35,000	35,000	35,000	35,000	35,000	35,000	35,000	35,000

Disconnection Time/Current Data Adjustable S/C Set to Min:
Disconnection Time (s)	60.00	10.00	5.00	1.00	0.40	0.10
In (A)	Disconnection Current (A)
50	165.00	300.00	300.00	300.00	300.00	300.00
63	250.00	378.00	378.00	378.00	378.00	378.00
80	350.00	480.00	480.00	480.00	400.00	480.00
100	450.00	600.00	600.00	600.00	600.00	600.00
125	700.00	750.00	750.00	750.00	750.00	750.00
160	800.00	960.00	960.00	960.00	960.00	960.00

Disconnection Time/Current Data Adjustable S/C Set to Max:
Disconnection Time (s)	60.00	10.00	5.00	1.00	0.40	0.10
In (A)	Disconnection Current (A)
50	165.00	450.00	600.00	600.00	600.00	600.00
63	250.00	650.00	756.00	756.00	756.00	756.00
80	350.00	960.00	960.00	960.00	960.00	960.00
100	450.00	1050.00	1200.00	1200.00	1200.00	1200.00
125	700.00	1500.00	1500.00	1500.00	1500.00	1500.00
160	800.00	1850.00	1920.00	1920.00	1920.00	1920.00

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