LD | W | 9 | - | □ | HU | / | 4 | □ | □ | □ | □ | □ |
↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ||
① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ | ⑪ |
① | Company Code |
② | Air Circuit Breaker or Frame Circuit Breaker or Intelligent Universal Circuit Breaker |
③ | Design No. |
④ | Inm=2500、Inm=4000、Inm=7500 |
⑤ | High Voltage Level |
⑥ | 3 Poles、4 Poles |
⑦ | Intelligent Controller:M-type: Digital display, 3M-type: LCD display standard, 3H-type: LCD communication interface |
⑧ | 200A, 400A, 630A, 800A, 1000A, 1250A, 1600A, 2000A, 2500A, 2900A, 3200A, 3600A, 4000A, 5000A, 6300A, 7500A |
⑨ | C: Drawer Type, F: Fixed type |
⑩ | Horizontal Rear, Vertical Front, Vertical Rear |
⑪ | ◎Button lock device ◎Phase partition for drawer type circuit breaker ◎Under-voltage release ◎"OFF" locking device (key lock) ◎Mechanical interlocking: 2 or 3 circuit breakers horizontal steel cable interlocking, 2 or 3 circuit breakers vertical lever interlocking ◎External neutral N current transformer ◎DC power supply module |
Note:
The standard configuration includes an M-type intelligent controller, four sets of auxiliary switch conversion contacts, and a horizontal rear connection method;
Voltage value for the intelligent controller, shunt release, under-voltage release, and closing electromagnet mechanism should be indicated.
● Ambient Air Temperature:-5℃to +40℃ ( Please refer to temperatures derating factor for above +40℃ to +60℃).
● Installation Location:Install the ACB according to the requirements in the user manual. The altitude shall not exceed 2000m. ( Please refer to high altitude derating factor for altitudes above 2000m). The vertical tilt of the circuit breaker should not exceed 5°.
● Atmospheric Conditions: The relative humidity of the air at the installation site should not exceed 50% at a maximum temperature of +40℃. At lower temperatures, higher relative humidity is acceptable, such as reaching 90% at 20℃. It is important to consider the condensation on the product surface due to temperature changes.
● Pollution Level:III
● Installation Category:The circuit breaker main circuit, undervoltage release coil, and power transformer primary coil are used for installation category IV. The installation category of other auxiliary circuits and control circuits is category II.
● ACB is suitable for electromagnetic environments;
● Install the ACB in an area free from explosion hazards, conductive dust, metal corrosion and insulation damage. It should be housed in a cabinet with a door frame, achieving IP54 protection level.
● IEC60947-1, GB/T14048.1: Low voltage switchgear and controlgear - General rules
● IEC60947-2, GBT14048.2: Low-voltage switchgear and controlgear - Circuit-breakers
● IEC60947-4-1, GB/T14048.4: Low-voltage switchgear and controlgear - Contactors and motor-starters
● GB/T2421.1: Environmental testing for electric and electronic products - General and guidance
● GB/T14597: Environmental climatic conditions appearing in different altitudes for electrical products
Model | LDW9-2500HU | LDW9-4000HU | LDW9-7500HU | |
Ampere Frame Rating (A) Inm | 2500 | 4000 | 7500 | |
Rated working current(A)In | 400、630、800、1000、1250、1600、2000、2500 | 2000、2500、2900、3200、3600、4000 | 4000、5000、6300、7500 | |
Rated working voltage(A) Ue | 50Hz AC800V、1140V | 50Hz AC800V、1140V | 50Hz AC800V、1140V | |
Rated insulation voltage(V)Ui | 1150V | 1150V | 1150V | |
Rated impulse withstand voltage Uimp(kV) | 12 | 12 | 12 | |
Power frequency withstand voltage U(V)1min | 50Hz 3500 | 50Hz 3500 | 50Hz 3500 | |
No. of poles | 3P/4P | 3P/4P | 3P/4P | |
Ultimate short circuit breaking capacity (kA)Icu | AC400V | 100 | 100 | 150 |
AC690V | 65 | 80 | 100 | |
AC800V AC1140V | 50 | 50 | 65 | |
Operating short circuit breaking capacity (kA)Ics | AC400V | 100 | 100 | 150 |
AC690V | 65 | 80 | 100 | |
AC800V AC1140V | 50 | 50 | 65 | |
Rated short-time withstand current (kA)Icw/1s | AC400V | 100 | 100 | 150 |
AC690V | 65 | 80 | 100 | |
AC800V AC1140V | 50 | 50 | 65 | |
Inherent opening time(ms) | 23~32 | 23~32 | 23~32 | |
Inherent closing time(ms) | 50±10 | 50±10 | 50±10 | |
Arcing distance(mm) | 0 | 0 | 0 | |
Electrical endurance (Cycles) | AC400/690V:7000/3000 AC800/1140V:2500/2000 | AC400/690V:7000/2500 AC800/1140V:2000/1000 | AC400/690V:2000/1500 AC800/1140V:1200/1000 | |
Mechanical endurance (Cycles) | No maintenance | 10000 | 10000 | 10000 |
With | 15000 | 15000 | 15000 |