The Guide - MEM Technical Support

Circuit Breaker Data

Memshield 2 J Frame

Type of Device
Rated Voltage
Frequency
Short Circuit Category = Moulded Case Circuit Breaker (MCCB)
= 690 Volts AC
= 50/60 Hertz
= Icu 36/65kA (415 Volts)

Maximum Earth Loop Impedance Zs (OHMS):
In (A)	Socket Outlet Circuits (0.4 secs)		Fixed Appliance Circuits (5 secs)
In (A)	Adjustable S/C set to min.	Adjustable S/C set to max.	Adjustable S/C set to min.	Adjustable S/C set to max.
200	0.200	0.100	0.200	0.100
250	0.160	0.080	0.160	0.080

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)
200	600.00	1200.00	1200.00	1200.00	1200.00	1200.00
250	1000.00	1500.00	1500.00	1500.00	1500.00	1200.00

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)
200	600.00	2400.00	2400.00	2400.00	2400.00	2400.00
250	1000.00	3000.00	3000.00	3000.00	3000.00	3000.00

MCCB Let Through Energy Data I²t (A² sec) J-Frame
Fault Level (A)	Rating
Fault Level (A)	160A	200A	250A
65000	1,500,000	2,300,000	3,400,000
50000	1,300,000	2,200,000	3,100,000
36000	1,150,000	1,700,000	2,700,000
25000	1,000,000	1,400,000	2,400,000
16000	700,000	1,100,000	1,800,000
10000	420,000	620,000	1,150,000
5000	190,000	230,000	390,000
3000	90,000	95,000	125,000
2500	62,000	65,000	85,000

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