Mccb elcb MB9DPN made by Meba
Meba mccb elcb MB9DPN applicable to protect line-conductor against overload, and short circuit of small sealed motors. It is main for protection of circuits with AC 220V and 50Hz/60Hz, and for un-frequent conversion under normal conditions as well. Meba mccb elcb MB9DPN action can be up to two poles with its only one pole volume and be used as a leakage breaker by assembling with leakage. Meba mccb elcb MB9DPN is produced as IEC60898.
Meba mccb elcb MB9DPN
1.For protecting cables and equipments against overload and short circuit.
2.General rules for choosing MCB.
a. Technical date of network at the point considered:
The earthing systems,short-circuit current at the circuit breaker installation point ,which must always be less than the breaking capacity of this device,network normal voltage.
b. There are 2 curve characteristic for magnetic operation:
B curve(3-5 ln)protection and control of the circuits against length cables in TN and IT systems.
C curve(5-10 ln)protection and control of the circuits against overloads and short-circuits;
protection for resistive and inductive loads with low inrush current.
1. Current rating: 1, 2, 3, 4, 6, 10, 16, 20, 25, 32A ,40A,50A,63A
2. Voltage rating: 220/240V AC
3. Breaking capacity to IEC 60898: 4500A,6000A
4. Number of operating cycles(O-C): 20000
5. Tripping characteristics:
B curve: The magnetic release operate between 3 and 5 In
C curve: The magnetic release operate between 5 and 10 In
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