QUNENG - MMCB (molded case circuit breaker)
series Electronic plastic-case circuit breaker has four
protection functions: overload long delay, short delay, short
instantaneous and ground fault. Commonly used, the rated
current has the following types 15 25 30 40 50 60 75 80 100 125 160
200 225 250 315 350 400 500 630 A. Working Temperature-5
degree to +40 degree Arc-extinguishing
medium Normal arc extinguishing chamberPort Qingdao
port, China Install method 1. Fixed type 2. Plug
type 3. Pull typePlastic-case circuit breakers are also known as
device circuit breakers, all parts are sealed in a plastic shell,
auxiliary contacts, undervoltage release and shunt release, etc.,
are modular. Because the structure is very compact, the
plastic-case circuit breaker can not be repaired. Most of them use
manual operation, large capacity can choose electric closing. Due
to the application of electronic overcurrent release, plastic-case
circuit breakers can also be divided into class A and Class B.
Class B has good three-stage protection characteristics, but due to
price factors, the market share of class A products using thermal
magnetic release is higher. Plastic-case circuit breaker is the
contact, interrupter, release device and operating mechanism are
installed in a plastic shell, generally do not consider
maintenance, suitable for the branch protection switch, over
current release device has two kinds of thermal magnetic and
electronic, general thermomagnetic plastic-case circuit breaker is
a non-selective circuit breaker, only overload long delay and short
circuit instantaneous two protection methods. Electronic
plastic-case circuit breaker has four protection functions:
overload long delay, short delay, short instantaneous and ground
fault. Some of the new products of electronic mould-case circuit
breakers also have regional selective interlocking function. Most
of the moulded case circuit breakers are manually operated, and
some have motor operating mechanisms.FAQQ1: Are you a factory
or trading company?A1: We are a factory, and we can guarantee
our price is first-hand very cheap and
competitive.Q2: What is the payment term?A2: We accept
T/T 30% deposit and 70% balance payment, the balance should be
paid after acceptance before shipment.Q3: Could I have the
prices of your products?A3: Welcome. Please feel free to send
us an inquiry here. We will reply to you within 24
hours.Q4: How about the delivery time?A4: Usually it
will take about 15-20 daysQ5: May I know the
warranty time? A5: In 12 months since BL date.Q6: Do
you accept product customization?A6: Yes of course.
Please provide specific drawings or parameters we will quote
you after evaluation./* January 22, 2024 19:08:37
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