The Guide - MEM Technical Support

Circuit Breaker Data

Memshield 2 L, M & N Frame Electronic

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

Maximum Earth Loop Impedance Zs (OHMS):
In (A)	Socket Outlet Circuits (0.4 secs)
	S/C Set to Min.			S/C Set to Max.
	L Frame	M Frame	N Frame	L Frame	M Frame	N Frame
630	0.190	-	-	0.038	-	-
800	0.150	-	-	0.030	-	-
1000	-	0.120	-	-	0.024	-
1250	-	0.096	-	-	0.0192	-
1600	-	-	0.075	-	-	0.015

Maximum Earth Loop Impedance Zs (OHMS):
In (A)	Fixed Appliance Circuits (5 secs)
	S/C Set to Min.			S/C Set to Max.
	L Frame	M Frame	N Frame	L Frame	M Frame	N Frame
630	0.190	-	-	0.038	-	-
800	0.150	-	-	0.030	-	-
1000	-	0.120	-	-	0.024	-
1250	-	0.096	-	-	0.0192	-
1600	-	-	0.075	-	-	0.015

Disconnection Time/Current Data L Frame Electronic 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)
630	1260.00	1260.00	1260.00	1260.00	1260.00	1260.00
800	1600.00	1600.00	1600.00	1600.00	1600.00	1600.00

Disconnection Time/Current Data L Frame Electronic 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)
630	2237.00	5292.00	6300.00	6300.00	6300.00	6300.00
800	2840.00	6720.00	8000.00	8000.00	8000.00	8000.00

Disconnection Time/Current Data M Frame Electronic 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)
1000	2000.00	2000.00	2000.00	2000.00	2000.00	2000.00
1250	2500.00	2500.00	2500.00	2500.00	2500.00	2500.00

Disconnection Time/Current Data M Frame Electronic 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)
1000	3500.00	8400.00	10000.00	10000.00	10000.00	10000.00
1250	4438.00	10500.00	12500.00	12500.00	12500.00	12500.00

Disconnection Time/Current Data N Frame Electronic 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)
1600	3200.00	3200.00	3200.00	3200.00	3200.00	3200.00

Disconnection Time/Current Data N Frame Electronic 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)
1600	5680.00	13440.00	16000.00	16000.00	16000.00	16000.00

MCCB Let Through Energy Data I²t (A² sec) L-Frame (Electronic)
Fault Level (A)	Rating
Fault Level (A)	630/800A
50000	13,000,000
40000	11,000,000
30000	9,000,000
20000	6,400,000
15000	5,000,000
10000	3,000,000

MCCB Let Through Energy Data I²t (A² sec) M-Frame (Electronic)
Fault Level (A)	Rating
Fault Level (A)	1000/1250A
65000	68,000,000
50000	50,000,000
40000	37,000,000
30000	24,000,000
20000	11,000,000

MCCB Let Through Energy Data I²t (A² sec) N-Frame (Electronic)
Fault Level (A)	Rating
Fault Level (A)	1600A
85000	88,000,000
65000	68,000,000
50000	50,000,000
40000	37,000,000
30000	25,000,000
20000	11,000,000

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