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1、概述 Overview
ARD2M 電動機保護器（以下簡稱保護器）適用于額定電壓至 380V 的低壓電動機回路，集保護、測量、控
制、通訊、運維于一體。其完善的保護功能確保電動機安全運行，帶有邏輯可編程功能，可以滿足多種控制方式。
The ARD2M motor protector (hereinafter referred to as the protector) is suitable for low-voltage motor circuits with
rated voltage up to 380V and integrates protection, measurement, control, communication, operation and maintenance.Its
perfect protection function ensures the safe operation of the motor, with logic programmable function, can meet a variety
of control methods. 該產品有一體式和分體式兩種結構選擇，由主體、互感器組成，可適應各種柜體的安裝。
The product adopts split structure, which is composed of main body, panel, mutual inductor and optional
communication module, and can adapt to the installation of various cabinets. 產品執行標準 Product Implementation standards：
——GB/T14048.4-2020 低壓開關設備和控制設備第 4-1 部分：接觸器和電動機起動器機電式接觸器和電動機起
動器(含電動機保護器)；
——GB/T14048.4-2020 Low-voltage switchgear and control gear -- Part 4-1: Contactors and motor starters -- Electromechanical contactors and motor starters (including motor protectors); ——JBT 10736-2007 低壓電動機保護器。
——JB/T 10736-2007 Low voltage motor protector. 2、產品特點 Product Features
■ 支持電力參數測量（U、I、P、Q、S、PF、F、EP、EQ），電流及電流不平衡度、電流正序、負序、零序分
量、電壓、三相電壓相角、剩余電流。
■ Support power parameter measurement (U, I, P, Q, S, PF, F, EP, EQ), voltage and current imbalance degree, voltage
and current positive sequence, negative sequence, zero sequence component, three-phase voltage phase Angle, residual
current. ■ 保護功能包括過載反時限、過載定時限、接地、起動超時、漏電、欠載、斷相、堵轉、阻塞、短路、溢
出、不平衡(電流、電壓)、過功率、欠功率、過壓、欠壓、相序、溫度、tE 時間、外部故障、起動次數限制、
運行時間報警、故障次數報警。
■ Protection functions include overload inverse time, overload definite time, grounding, starting timeout, leakage, underload, locked-rotor, obstruction, short circuit, phase, overflow, imbalance (current, voltage, power, less power, over
voltage, under voltage, phase sequence, temperature, external fault, tE time, running time alarm, fault alarm. ■ 8 路可編程 DI 輸入，默認采用內置 DC24V 電源，也可選擇外部有源濕接點。
■ 8 channels programmable DI input, the default use of DC24V power supply, or external active wet contact can be
selected (see the selection table). ■ 5 路可編程 DO 輸出，滿足直接起動，星—三角起動，自耦變壓器起動，等多種起動方式，可通過通訊總線
實現主站對電動機的遙控“起/停”。
■ 5 programmable DO output, to meet the direct starting, star - triangle starting, auto-transformer starting, and other
starting modes, can be through the communication bus to achieve the master station to the motor remote control "start/stop". ■ 可選抗晃電功能：支持晃電立即再啟動、失壓重起動。
■ Optional anti-shaking function: support immediate restart of shaking power and restart of voltage loss. ■ 標配 MODBUS_RTU 通訊，可選配 PROFIBUS DP 通訊，支持最多 2 路通訊接口。
■ MODBUS_RTU and PROFIBUS DPV1 communication modules are available for selection.2 MODBUS_RTU
communication channels or MODBUS_RTU+PROFIBUS DPV1 communication modules can be chosen.
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■ 可選配 1 路 4-20mA 模擬量輸出接口，與 DCS 系統相接，可實現對現場設備的監控。
■ Optional 1 channels DC4-20MA analog output interface, connected with DCS system, can realize the monitoring of
field equipment. ■ 具有故障記錄、起動記錄、停車記錄、DI 變位記錄和再起動記錄等各類事件記錄。
■ With fault record, start record, stop record, DI displacement record, restart record and other records of various events, you can view a number of motor operation and maintenance information. ■ 顯示界面液晶顯示，支持中/英文切換。
■ The display interface supports Chinese/English LIQUID crystal display
3、型號說明 Model Description
ARD 2 M /
附加功能（表 2）
Display module (Table 2)
保護器電流規格（表 1）
Current Specification(Table 1)
設計序列號
Design serial number
企業代號：安科瑞電氣股份有限公司
Enterprise code
ARD2M 電流規格與適用電機額定電流、功率對應關系見表 1：
The corresponding relation between ARD2M current specification and the rated current and power of the applicable
motor is shown in Table 1:
表 1 Table 1
保護器電流規格
Protector current specification
(A)
變比設置
Ratio setting
互感器一次側圈數
Primary side coil number of transformer 適用電機范圍
Applicable scope of motor
(kW)
適用電機額定電流范圍
Suitable for motor Rated current range
(A)
1 支持
Support
1 圈 1circle 0.12-999 0.1-1.6
5 1 圈 1circle 0.12-999 1.6-6.3
25
不支持
Does not support
1 圈 1circle 3-11 6.3-25
100 1 圈 1circle 15-45 25-100
250 1 圈 1circle 55-132 63-250
800 1 圈 1circle 160-250 250-800
備注：1A、5A 規格的保護器通過接入二次輸出為 1A、5A 信號的電流互感器，實現對電流范圍為 0.1-5000A、
0.5-5000A 的電機進行保護控制。
Remarks:The protectors of 1A and 5A specifications realize the protection and control of motors with current
range of 0.1-5000A and 0.5-5000A by connecting current transformers with secondary output of 1A and 5A
signals. ARD2M 附加功能見表 2：
Additional function of ARD2M are shown in Table 2:
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表 2 Table 2
附加功能 Additional function 代號 code 附加功能 Additional function 代號 code
電能
Energy metering
Ep
事件記錄
SOE Event record
SR
1 路 4-20mA 變送輸出
1channel 4-20mA analog output
M
1 路 Modbus-RTU 通訊
1channel Modbus-RTU
communication
C
抗晃電功能
Anti - electric shock function
SU
溫度保護
Temperature protection
T
漏電保護
Anti-electric shock function
L
1 路 Profibus-DP 通訊
1channel Profibus-DP
communication
CP
2 路 Modbus-RTU 通訊
2 channels Modbus-RTU
communication
CC
備注 Remarks:
（1）、100A 及以下電流規格的一體式保護器使用一體式電流互感器；
100A 及以下電流規格的分體式保護器使用分體式電流互感器；
250A、800A 電流規格使用另外一種分體式電流互感器。互感器外觀尺寸詳見“外形尺寸及安裝”部分。
Integrated current transformer is used for integrated protector with current specification of 100A and below；
The split current transformer is used for the current specification of 100A and below;
250A and 800A current specifications use another type of split current transformer. For the external dimensions of
the transformer, please refer to the "external dimensions and installation". （2）、溫度測量支持傳感器類型為 PTC 或者 NTC 或者 PT100。
The temperature measurement support sensor type is PTC or NTC or PT100. （3）、選配漏電功能（L）后，每臺保護器自配一只漏電互感器，漏電互感器尺寸詳見“外形尺寸及安裝”部分。
漏電互感器標配 2m±10cm 二次線，如需其它長度可同廠家聯系。
After the leakage function (L) is selected, each protector is equipped with a leakage transformer. The dimensions
of the leakage transformer are shown in the section "overall dimensions and installation". Leakage transformer is
equipped with 2m ± 10cm secondary line as standard. If you need other length, please contact the manufacturer. 4、主要參數 Main parameters
4.1 技術指標 Technical indicators
ARD2M 技術指標見表 3：
ARD2M technical indicators are shown in Table 3:
表 3 Table 3
技術參數
Technical parameters
技術指標
Technical indicators
保護器輔助電源
Protector auxiliary
power supply
AC85-265V/DC100-350V
電機額定工作電壓
Rated working voltage
of the motor
AC220V / 380V，50Hz / 60Hz
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電動機額定工作電流
Rated operation current
of the motor
1 (0.1A-1.6A) 一體式/分體式互感器
Integrated/Split current transformer
5 (1.6A-6.3A)
25(6.3A-25A)
100(25A-100A)
250(63A-250A) 分體式互感器
Split current transformer 800(250A-800A)
繼電器輸出觸點容量
Relay output contact
capacity
阻性負載
Impedance load
AC250V、10A
開關量輸入
Switching input
8 路無源干結點（可選配有源 DC110V、DC220V、AC220V 輸入）
8 channels of passive dry contact (active DC110V, DC220V, AC220V
input can be optional)
通訊
Communication
RS485 Modbus_RTU,Profobus_DP 協議
RS485 Modbus_RTU,Profibus _DP Protocol
環境
Environment
工作溫度
Working temperature
-10oC～55oC
貯存溫度
Storage temperature
-25oC～70oC
相對濕度
Relative temperature
≤95﹪不結露，無腐蝕性氣體
≤95﹪No condensation, no corrosive gas
海拔
Altitude
≤2000m
污染等級
Pollution levels
3 級
3 level
防護等級
Protection grade
IP65（安裝在柜體面板時）
IP65(installed on the cabinet panel)
安裝類別
Installation category
III 級
III level
