Residual Current Circit NDM2L Series MCCB with Residual Current Protection 16A-400A

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Product Description:

Rated residual operating current I△n: 100mA/300mA/500mA/1000mA (adjustable/non-adjustable)

Operating time: ≤0.2s (non-delay type); 0.5s/1.15s/2.15s (delay type)

N-pole type of 4-pole MCCB:

    A: N-pole is always close without overload release

    B: N-pole is open or close together with other three poles and without overload release

    C: N-pole is open or close together with other three poles and with overload release



· Small size, high breaking capacity, short arc, shake-resisting, and so on.

· Suitable for both vertical and horizontal installation.

· With isolating function.

· Residual current of the protecting modular is from 3 phases, making it possible to work normally in case of default of any phase.

· Adjustable on the site: With three grades of residual current and three grades of delay time. User can adjust them according to the requirements on the site.

· Indication of working status: Normal-Green lamp; Fault-Red lamp; Alarm-Yellow lamp (≥25%I△n).

· Good performance under voltage faults: Be able to perform residual current protection when phase voltage drops to 50V.

Q1 : Do you accept OEM/ODM?

ODM&OEM are warmly welcomed !!!



Q2 : what’s your payment?


a)We can accept payment terms of T/T, Western Union, PayPal


Samples and trial order accept PayPal ,T/T & Western Union. normal order accept T/T &Western Union 


b) 30% ADVANCE DEPOSIT after buyer's confirmed payment, the balance should be paid before shipping when goods are ready.


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Q:Is the circuit breaker in the circuit necessary?
When the air is open, it is not recommended to use the fuse, need to protect, open the three-phase at the same time off, such as with the fuse
Q:Switch switch, disconnector, circuit breaker difference? What are the possible functions of each?
but played under omission, over flow, short circuit, grounding and other basic protection ,
Q:How to distinguish between disconnectors, circuit breakers?
In the closed state can be reliably through the normal load current and short circuit fault curren
Q:How to switch from the circuit breaker switch button, the difference is short circuit protection or overload protection?
Circuit Breaker Circuit Breaker. Leakage protector leakage protection is the effect of two different products is different. In any case, I seriously bored at home to reply to your question, hope to help you!
Q:Circuit breaker auxiliary contact is what?
Molded case circuit breaker with plastic structure, is characterized by the circuit breaker shell, the frame made of plastic from the contact, the arc system are placed in the insulating chamber
Q:Is the MCB switch a circuit breaker or a component on the circuit breaker?
then if any branch of the circuit breaker circuit breaker circuit breaker will cut off the total circuit breaker All the power supply, if used in the branch circuit breaker will not affect the normal use of other branch electrical appliances
Q:What is the common circuit switch called switch
Manual and electric operation are, with the development of microelectronics technology, the current part of the intelligent circuit breaker with a regional
Q:How to protect the leakage protector leakage protection?
Also known as leakage relays are often used to maintain an important place for electricity. RCD principle for the use of zero sequence current
Q:Isolation switch, circuit breaker, open the three What is the difference between ah
Isolated switch is a high voltage switchgear mainly used in high voltage circuit
Q:Double control switch circuit diagram
Double control switch refers to a device for two separate control, such as if it is lighting, that there are in the living room control the living room lighting

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