63A/300A 230V/400V Heat Resistant MCCB Circuit Breaker
Our MCCBs provide you unmatched circuit protection in alternative
energy, commercial, industrial, mining, and military applications
when protecting conductors against overloads and short circuits.
These circuit breakers are applied in panelboards, switchboards,
motor control centers, control panels, combination starters,
individual enclosures, and bus duct plug-in units.
Application
Our DZ15DDZ15D10-40A 50-100A 100-250A/3902□ type multifunctional
auto protective switch is mixed with the protection functions of
phase failure, over-current, short circuit faults, able to provide
the automatic protection for the motors under AC 380V, 50Hz, also
used to start motor non-frequently, further to some degree, prevent
the accident of distribution transformer destroyed resulted from
over-current because motors run at failure of one phase caused one
phase of drop out fuse melted down.The merit of this switch has
solved the problem that many switches can't take action while the
one phase of drop out fuse is melted down, no matter drop out fuse
melted down, low voltage fuse burnt, one phase of three phase motor
is broken, which make it run at phase absence, it can perform the
effective protection.
Using conditions
The altitude of the installation site is less than 2000m.
Ambient air temperature: the upper limit of ambient air temperature
shall not exceed +40℃; The average ambient air temperature for 24h
shall not exceed +35℃; The lower limit of ambient air temperature
is not less than -5 ° C.
Atmospheric conditions: the relative humidity of the atmosphere
does not exceed 50% when the ambient air temperature is +40℃, and
it can have a higher relative humidity at a lower temperature. When
the monthly average minimum temperature of the wettest month does
not exceed +25℃, the monthly average maximum relative humidity of
the month is 90%, and the temperature change occurs on the surface
of the product is taken into account.
Main Technical Data
1. Automatic switch overcurrent tripping characteristics table
| Rated current multiples | Action time |
| 1 | No action |
| 1.2 | <20min |
| 1.5 | <3min |
| 6 | To return time <1 s |
| 12 | <0.2 s |
2. Multi-functional automatic switch parameter
| Items | Data |
| Rated voltage | 380 |
| Rated current | 40,100,250 |
| Rated frequency | 50 |
| Number of segments | 3 |
| Over-current release rated current | 40,60,100,250 |
| Off phase action time | ≤3 |
| Motor leakage current | 75 |
Normal operating conditions
Altitude: not higher than 2500m
No place rain and snowerosion;
Noexplosivemediumandnocorrosionanddamage
theinsulationofgasandconductive dust areas.
Normally, we will provide the most suitable shipment method for
you. If the quantity is few, the goods will be sent by express when
the payment is clear. Also, we can transport the goods by air or by
sea, just according to your demand
Baikong electric was born and developed wellSichuan Baikong
Electrical Technology Co., Ltd is a complete set of high and low
voltage power distribution equipment automation equipment, set
production, research and development and sales Import and export
services and other integrated enterprises, the company is
headquartered in Pengzhou Industrial Park, Chengdu City.The
company's main products are box-type substation Medium and high
voltage power transmission and distribution equipment, low voltage
power distribution equipment, fire electrical equipment,
intelligent industrial electrical equipment, new energy and energy
storage electrical equipment, metering and protection power
distribution equipment, high and low voltage complete switchgear,
high voltage ring network cabinet, cable branch box,SF6 inflatable
cabinet, etc.
Model
