The Guide - MEM Technical Support

Circuit Breaker Data

Memshield 2 Type B

Type of Device
Rated Voltage
Frequency
Short Circuit Category = Miniature Circuit Breaker (MCB)
= 415 Volts AC
= 50/60 Hertz
= 10kA (415 Volts) 1 to 63 Amps

Maximum Earth Loop Impedance Zs (OHMS):
In (A)	Socket Outlet Circuits (0.4 secs)	Fixed Appliance Circuits (5 secs)
1	48.0	49.0
2	24.0	24.0
4	12.00	12.00
6	8.00	8.28
8	6.00	7.50
10	4.80	6.00
13	3.69	4.70
16	3.00	3.69
20	2.40	3.00
25	1.92	2.28
32	1.50	1.71
40	1.20	1.5
50	0.96	1.17
63	0.76	1.04

Disconnection Time/Current Data:
Disconnection Time (s)	60.00	10.00	5.00	1.00	0.40	0.10
In (A)	Disconnection Current (A)
1	2.10	4.20	4.90	5.00	5.00	5.00
2	4.20	9.00	10.00	10.00	10.00	10.00
4	8.00	16.00	20.00	20.00	20.00	20.00
6	13.00	17.5	29.00	30.00	30.00	30.00
8	16.00	25.00	32.00	40.00	40.00	40.00
10	20.00	30.00	40.00	50.00	50.00	50.00
13	22.00	40.00	51.00	65.00	65.00	65.00
16	31.00	50.00	65.00	80.00	80.00	80.00
20	39.00	64.00	80.00	100.00	100.0	100.0
25	50.00	80.00	105.00	125.00	125.00	125.00
32	62.00	105.00	140.00	160.00	160.00	160.00
40	80.00	145.00	160.00	200.00	200.00	200.00
50	100.00	160.00	205.00	250.00	250.00	250.00
63	120.00	190.00	230.00	315.00	315.00	315.00

Maximum Let Through Energy:
Prospective Short Circuit (kA)	0.5	1	2	3	5	10
In (A)	I²t (A² sec)
1	140	200	240	270	300	370
2	650	1050	2000	2900	4700	8000
4	880	1550	3000	4200	7000	12500
6	1020	1750	3400	5100	8100	15000
8	1250	2100	4000	5900	9500	18000
10	1350	2500	4750	7000	11500	21000
13	1500	2700	5200	7700	13000	24000
16	1600	3000	5800	8700	14500	27000
20	1800	3500	7000	10500	18000	33000
25	2000	3600	7700	12000	20000	38000
32	2100	4000	8300	13000	22000	43000
40	2400	4300	9300	14000	26000	51000
50	2600	5100	11000	17000	31000	61000
63	-	6000	13000	21000	38000	80000

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