Noark MCCB Current Adjustment

 

Noark’s DC Moulded Case Circuit Breakers Ex9MD Thermo-magnetic (TM) are intended mainly for photovoltaic applications. Testing according to IEC / EN 60947-2 standards ensures functionalities and reliability for wide variety of applications including isolation.

The MCCB have breaking capacities from 25kA up to extreme 100kA. The high rated impulse-withstand voltage (Uimp) makes them suitable even in systems with occurrences of transient overvoltage waves of high intensity, such as in heavy industry.

You can set the MCCB to your required current rating: 0.7 = 70%, 0.8 = 80%, 0.9 = 90%, 1.0 = 100% of Nominal.

 

2 Pole Models:

Part number	Description	Rated 100% (A)	90% (A)	80% (A)	70% (A)	Range
N852894	Noark Ex9MD1B TM DC80A 2P 500V DC MCCB	80	72	64	56	56 - 80A
N852895	Noark Ex9MD1B TM DC100A 2P 500V DC MCCB	100	90	80	70	70 - 100A
N852896	Noark Ex9MD1B TM DC125A 2P 500V DC MCCB	125	113	100	88	88 - 125A
N852899	Noark Ex9MD2B TM DC160A 2P 500V DC MCCB	160	144	128	112	112 - 160A
N852900	Noark Ex9MD2B TM DC180A 2P 500V DC MCCB	180	162	144	126	126 - 180A
N852901	Noark Ex9MD2B TM DC200A 2P 500V DC MCCB	200	180	160	140	140 - 200A
N852902	Noark Ex9MD2B TM DC250A 2P 500V DC MCCB	250	225	200	175	175 - 250A

 

3 Pole Models:

Part number	Description	Rated 100% (A)	90% (A)	80% (A)	70% (A)	Range
N852722	Noark Ex9MD3B TM DC315 3P 750V DC MCCB	315	284	252	221	221 - 315A
N852724	Noark Ex9MD3B TM DC400 3P 750V DC MCCB	400	360	320	280	280 - 400 A
N852762	Noark Ex9MD4B TM DC500 3P 750V DC MCCB	500	450	400	350	350 - 500 A
N852763	Noark Ex9MD4B TM DC630 3P 750V DC MCCB	630	567	504	441	441 - 630 A
N852792	Noark Ex9MD5B TM DC700 3P 750V DC MCCB	700	630	560	490	490 - 700 A
N852793	Noark Ex9MD5B TM DC800 3P 750V DC MCCB	800	720	640	560	560 - 800 A