product details
product overview
ZHHW1 series intelligent universal circuit breakers (hereinafter referred to as circuit breakers), suitable for ac 50 Hz, rated voltage to 660 V(690V)and below, rated current 630 A~6300A in the power distribution network, it is used to distribute electric energy and protect lines and power equipment from overload, undervoltage, short circuit, single-phase grounding and other faults. the circuit breaker has intelligent protection functions and precise selective protection, which can improve power supply reliability and avoid unnecessary power outages. at the same time, it has an open communication interface and can perform "four remotes" to meet the requirements of the control center and automation system. the circuit breaker has a pulse withstand voltage of 8000 at an altitude of 2000 meters. V(different altitudes are corrected according to standards, the maximum does not exceed 12,000 V)。this circuit breaker can be used as an isolator without intelligent controller and sensor, and is marked as
。
circuit breaker complies with GB14048.2《 low voltage switchgear and control equipment low voltage circuit breaking special and IEC60947-2《 "low-voltage switchgear and control equipment" and other standards.
normal operating conditions and installation conditions
ambient air temperature
the upper limit value does not exceed +40℃，the lower limit value is not less than -5 ℃，24h the average does not exceed +35℃。
note: the lower limit is -10 ℃or -25 ℃working conditions, the user should declare with the company; the upper limit value exceeds +40℃or the lower limit value is lower than -10 ℃or -25 ℃for working conditions, users should negotiate with our company. the altitude of the installation site does not exceed 2000 m.
atmospheric conditions
the relative humidity of the atmosphere in the surrounding air is +40℃it does not exceed 50%, and can have higher relative humidity at lower temperatures. the monthly average maximum relative humidity of the wettest month is 90%, and the average minimum temperature of the month is +25℃，and take into account condensation on the product surface that occurs due to temperature changes. if the requirements exceed the specified requirements, please consult with the company.
protection level: IP30
pollution level: Ⅲ
usage categories: B class or A kind
installation category
rated working voltage 660 V(690V)and below circuit breakers and undervoltage releases, primary coils of power transformers are used for installation categories Ⅳ；the installation categories of auxiliary circuits and control circuits are Ⅲ。
installation conditions
the circuit breaker should be installed in accordance with the requirements of this manual. the vertical inclination of the circuit breaker shall not exceed 5 degrees (the inclination of the mining circuit breaker shall not exceed 15 degrees).
model description
3 | 4 | 5 | 6 | M/H | 3/4 | |
▼ | ▼ | ▼ | ▼ | ▼ | ▼ | ▼ |
universal circuit breaker | shell frame grade: 2000 rated current: 400 A 630A 800A 1000A 1250A 1600A 2000A | shell frame grade: 3200 rated current: 2000 A 2500A 2900A 3200A | shell frame grade: 4000 rated current: 3200 A 3600A 4000A | shell frame grade: 6300 rated current: 4000 A 5000A 6300A | breaking ability level (KA) | number of poles |
note: frame grade: 2000 type, rated current: 630 A、 breaking capacity: M type, number of poles: 3 poles, should be determined as: AD3-630M/3.
product classification
according to installation method: fixed type, drawer type
divided according to the number of poles: three poles, four poles
according to operation mode: electric operation, manual operation (for inspection and maintenance )
smart controller performance
intelligent controllers are divided into: H type (for communication), M type (ordinary intelligent type), L type (economical type);
it has overload long delay inverse time limit, short delay inverse time limit, definite time limit and instantaneous functions. the required protection characteristics can be set by the user:
single-phase ground fault protection function:
display function: setting current display, operating current display, voltage display of each phase (voltage display should be mentioned when ordering:
alarm function: overload alarm:
self-check function: overheating self-check, microcomputer self-diagnosis;
test function: test the action characteristics of the controller.
simple structure
circuit breaker front indication
technical parameters
undervoltage release
the undervoltage release is composed of a release coil and a control unit.
the actions of the undervoltage release are divided into two types: clockwise action and delayed action:
the delay time of the undervoltage delay release is generally divided into four types: 1, 2, 3, and 5. the delay accuracy ±10%。
| rated working voltage Ue(V) | AC400A | AC230 |
operating voltage (V) | (0.35-0.7)Ue | ||
reliable closing voltage (V) | (0.85-1.1)Ue | ||
reliable non-closing voltage (V) | ≤0.35Ue | ||
power consumption | 12VA | ||
note: in thunderstorm-prone areas or in power grids with unstable power supply voltage, it is recommended to use an undervoltage release with a delay to prevent the circuit breaker from tripping due to a short-term voltage drop. the delay time is generally 1 S、2S、3S、5S available for user selection.
shunt tripper
can be operated remotely to open the circuit breaker
| rated control power supply voltage Us(V) | AC400 | AC230 | DC220 | DC110 |
operating voltage (V) | (0.7~1.1)Us | ||||
instantaneous current | 0.7 | 1.3 | 1.3 | 2.4 | |
the breaking time is not greater than | no more than 30 ms | ||||
closing electromagnet
after the energy storage is completed, the closing electromagnet can instantly release the energy storage spring force of the operating mechanism to quickly close the circuit breaker.
| rated control power supply voltage Us(V) | AC400 | AC230 | DC220 | DC110 |
operating voltage (V) | (0.85~1.1)Us | ||||
instantaneous current (A) | 0.7 | 1.3 | 1.3 | 2.4 | |
closing time | no more than 30 ms | ||||
electric operating mechanism
the circuit breaker has motor energy storage and automatic re-storage functions;
the circuit breaker can also be manually stored.
| rated control power supply voltage Us(V) | AC400 | AC230 | DC220 | DC110 |
operating voltage (V) | (0.85~1.1)Us | ||||
power consumption | 85VA、110VA、150VA | 85VA、110VA、150VA | |||
energy storage time | no more than 5 s | ||||
auxiliary switch
rating
| rated voltage Ue(V) | agreed heating current Ith | rated control capacity | |
AC | 230 | 6 | 300VA | |
400 | ||||
DC | 220 | 60W | ||
110 | ||||
note: the standard type of auxiliary switch is 4 sets of change-over contacts, and the special type is 4 normally open and 4 normally closed, 6 normally open and 2 normally closed, 2 normally open and 6 normally closed, 3 normally open and 3 normally closed.
mechanical accessories
“"open" locking device
“the "open" locking device can lock the disconnect button of the circuit breaker (drawer type or fixed type) in the pressed position. at this time, the circuit breaker cannot be closed;
after user selection, the factory provides locks and keys
1、a circuit breaker with an independent lock and key;
2、two circuit breakers come with two identical locks and one key;
3、three circuit breakers come with three identical locks and two identical keys.
drawer circuit breaker "disengaged" position locking padlock
when the drawer-type circuit breaker is in the "disconnected" position, the locking lever can be pulled out and locked with a padlock. after locking, the circuit breaker cannot be moved to the "test" or "connected" position;
padlocks are provided by the user.
circuit breaker phase partition
the phase partition strengthens the insulation between busbars and is an optional part of the circuit breaker, which can be configured by the user when needed.
steel cable interlocking of two flat circuit breakers or twostacklinkage interlock for installing circuit breaker
santaistacklinkage interlock for installing withdrawable circuit breaker
installation dimensions and overall dimensions of withdrawable circuit breaker (Inm=2000A three poles and four poles )
fixed circuit breaker installation dimensions and overall dimensions (Inm-2000A three poles and four poles )
installation dimensions and overall dimensions of withdrawable circuit breaker (Inm=3200A three poles and four poles )
fixed circuit breaker installation dimensions and overall dimensions (nm=3200A three poles and four poles )
installation dimensions and overall dimensions of withdrawable circuit breaker (Inm=4000A three poles )
fixed circuit breaker installation dimensions and overall dimensions (Inm=4000A three poles )
installation dimensions and overall dimensions of withdrawable circuit breaker (lnm=4000A four poles )
installation dimensions and overall dimensions of withdrawable circuit breaker (Inm=5000A three poles )
installation dimensions and overall dimensions of withdrawable circuit breaker (Inm=6300A three poles )
circuit breaker door frame hole size
