Miniature Circuit Breaker

CB-60 MCB

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CB-60 Miniature Circuit Breaker

CB-60 Miniature Circuit Breaker is suitable for use in AC 50Hz distribution circuit (of which the rated voltage is no higher than 400V, rate current not exceeding 63A, and rated short-circuit capacity no more than 6000A), also applicable in the circuit with DC voltage unipolar no higher than 110V, bipolar no more than 220V, rated current not exceeding 63A and rated short-circuit capacity up to 6000A.

The circuit breaker in the distribution circuit can help achieve overload and short-circuit protection, can also be used as a switch of non-frequent operation and switch disconnector (used for lines and equipment maintenance).

The product complies with IEC60898-1, IEC60898-2 standards, EN60898-1, EN60898-2 and EU RoHS environmental requirements, and has obtained international certifications of SEMKO, TUV, etc.

 

DZ47-60 MCB

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DZ47-60 Miniature Circuit Breaker

DZ47-60 miniature circuit breaker, only available for sales in Commonwealth of Independent States, is mainly used in the circuit of AC 50Hz/60Hz, rated voltage of 400V and below, rated current of 60A and below, to act overload, short-circuit protection. It can also turn on or off the electrical appliance and lighting circuit infrequently under normal conditions, but not applicable for direct protection of high sensibility and high capacitive load of motor and electric equipment, capacitor cabinets, etc.

Standard: IEC 60898-1.

 

DZ158 MCB

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DZ158 Moulded Case Circuit Breaker
Electric ratings:up to 100A,230/400V/1P; 400V/2,3,4P, AC50Hz;
Application: for protection of circuits from over-load and short-circuit;
and for infrequent making and breaking of circuits under normal operation
conditions, as well; Standard: IEC/EN 60947-2

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DZ267 MCB

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DZ267 Miniature Circuit Breaker
1. Application:
For protecting equipment against overload and short circuit.
2. General rules for choosing MCB.
a.Technical data of the network at the point considered:
The earthing systems (TNS, TNC),
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 1 curve characteristics for DZ267 magnetic operation:
C curve (5-10 In) protection and control of the circuits against
overloads and short-circuits; protection for resistive and inductive
loads with low inrush current.

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eB MCB

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eB Miniature Circuit Breaker
1. Function
protection of circuits against short-circuit currents,protection of circuits against overload currents, switch,isolation.
2. Tripping curves:
B curve (3-5In) protection for people and big length cables in TN and IT  systems.
C curve (5-10In)protection for resistive and inductive loads with low inrush current.
D curve(10-14In)protection for circuits which supply loads with high inrush current at the circuit closing (LV/LV transformers, breakdown lamps).

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NB1 MCB

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NB1 Miniature Circuit Breaker
Electric ratings: a. AC: up to 63A, AC230/400V, AC50/60Hz; b. DC: up to 63A, DC110V/1P, DC125V/2P;
Application: for protection of circuits from over-load and short-circuit; and for infrequent making
and breaking of circuits under normal operation conditions, as well; Standard: IEC/EN 60898.

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NB7 MCB

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NB7  Miniature Circuit Breaker
The NB7 series miniature circuit breaker is applicable to the
circuit with an alternating current of 50Hz, rated voltage of
230/400V, and rated current up to 63A for overload
protection and short circuit protection, and also for not-
frequent operational transformation in the circuit under
normal condition.
This product can be applied to various places such as
industrial, commercial, and tall buildings, and residential
houses.
The product meets the standards of IEC60898-1.

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NBH8 MCB

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NBH8 Miniature Circuit Breaker
Electric ratings: up to 40A, 230V, AC50/60Hz; Application: for protection of circuits
from over-load and short-circuit; and for infrequent making and breaking of circuits under
normal operation conditions, as well; Standard: IEC/EN 60898.

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UB MCB

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UB Miniature Circuit Breaker
Technical data of the network at the point considered:the earthing systems (TNS, TNC),short-circuit current at
the circuit-breaker installation point, which must always be less than the breaking capacity of this device,
Network normal voltage.
Tripping curves:
B curve (3-5In)
protection for people and big length cables in TN and IT
systems.
C curve (5-10In)
protection for resistive and inductive loads with low inrush
current.

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NB1-DC MCB

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