| Accuracy Active Energy: | Class 0.5 |
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| Auxiliary Power Supply: | AC/DC85-265V |
| Frequency Range: | 45-65Hz |
| Pulse Output: | 1600-160000imp/Kwh |
| Trademark: | Acrel |
| Origin: | China |
| Customization: |
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Suppliers with verified business licenses
Audited Supplier ARD series intelligent motor protector (hereinafter referred to as protector) can perform various conditions such as start timeout, overload, phase failure, unbalance, underload, ground/leakage, blockage, short circuit and external fault during motor operation. Protection, and SOE fault event recording function, convenient for on-site maintenance personnel to find the cause of the fault. Suitable for coal, petrochemical, smelting, electric power, ships, and civil construction. The protector has RS485 remote communication interface, DC 4 ~ 20mA analog output, and PLC, PC and other control machines form a network system. Remote monitoring of motor operation.
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Technical parameters
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Technical indicators
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Auxiliary power supply
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AC85-265V/DC100-350V
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Rated working voltage of the motor
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AC220V / 380V / 660V,50Hz / 60Hz
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Rated operating current of the motor |
1A(0.1A~999.9A)
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Small special current transformers |
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5A(0.1A~999.9A)
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1.6A(0.4A~1.6A)
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6.3A(1.6A~6.3A)
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25A(6.3A~25A)
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100A(25A~100A)
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250A(63A~250A)
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Special current transformers |
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800A(250A~800A)
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Relay output contactor, rated load capacity
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4 Channel, AC250V, 3A |
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Switching input
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2 channels, opto-coupler isolation (Optional K code)
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Communication
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RS485(Modbus RTU)
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Environment |
Working temperature
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-10ºC~+55ºC
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Storage temperature
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-20ºC~+65ºC
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Relative humidity
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5%~95%(No condensation)
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Altitude
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≤2000m
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Pollution levels
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Class 2
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Protection level
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Main module IP20
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Installation category
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Class III
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| Technical parameters | Technical specification | |
| Auxiliary power supply of protector | AC85V~265V/DC100V~350V, power consumption ≤7VA | |
| Rated working voltage of motor | AC380V/AC660V, 50H/60Hz | |
| Rated working current of motor | 1A (0.1 ~9999) | Small specific current transformer |
| 5A (0.1 ~9999) | ||
| 1.6A (0.4A-1.6A) | ||
| 6.3A (1.6A~6.3A) | ||
| 25A (6.3A~25A) | ||
| 100A (25A~100A) | ||
| 250A (63A-250A) | Specific current transformer | |
| 800A (250A~800A) | ||
| Relay output contactor, rated load capacity | 4-way, AC250V, 3A, DC30V, 3A | |
| Switching input | 2-way, optical isolation | |
| Communication | RS485 Modbus | |
| Volume of SOE event recorder | 8 events | |
| Environment | Working temperature | -10ºC-55ºC |
| Storage temperature | -20ºC-65ºC | |
| Relative humidity | 5%-95%, no dew | |
| Altitude | ≤2000m | |
| Class of pollution | 2 | |
| Protection level | IP20 | |
| Rated current of current transformer, A | Ratio setting | Number of turns at the primary side of transformer | Range of setting current Is, A | Power of motor, kW |
| 1 | Yes | 5 | 0.1~9999 | 0.12~440 |
| 5 | 1 | 0.1~9999 | 0.12~440 | |
| 1.6 | No | 1 | 0.4~1.6 | 0.12~0.55 |
| 6.3 | 1 | 1.6~6.3 | 0.75-2.2 | |
| 25 | 1 | 6.3~25 | 3~11 | |
| 100 | 1 | 25~100 | 15-45 | |
| 250 | 1 | 63~250 | 55~132 | |
| 800 | 1 | 250-800 | 160-440 |
| Additional function | Code | Additional function | Code |
| Communication interface | C | 2-way switching input, 1-way relay output (programmable 3) | K |
| Leakage protection | L | SOE event recorder | SR |
| Analog output 4-20mA | M | Alarm output (programmable 2) | J |
Suppliers with verified business licenses
Audited Supplier 
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