GE Multilin MMII-PD-1-2-120 电机保护继电器

产品基本信息

型号编码结构说明

电气规格

电源与控制：

• 控制电压：120V AC (80-135V AC, 50/60Hz)
• 功耗：低至15W

输入/输出配置：

• 固定输入：6个
• 可编程输入：10个（过程输入选项）
• 过程输入：2个
• 输出：2个接触器输出 + 2个可编程输出 + 4个总继电器（含辅助继电器）

模拟输入：

• 范围：4–20 mA
• 精度：±2%（单相）

触点额定值：

• 250 VAC

保护功能

MMII-PD-1-2-120提供全面的电机保护功能：

• 过载保护 - 防止电机过载损坏
• 短路保护 - 电路短路时快速切断
• 接地故障保护 - 接地故障检测
• 相不平衡保护 - 防止三相不平衡运行
• 过温保护 - 电机过热检测
• 堵转/失速保护 - 电机启动失败或卡死保护
• 欠压/过压保护 - 电压异常保护

控制功能

• 电机启停控制
• 加速/减速控制
• 顺序启动功能
• 远程/本地操作模式
• 欠压自动重启功能
• 智能诊断功能

通信与接口

环境规格

应用场景

主要用于：

• 电机控制中心（MCC）‍ - 低压电机控制中心应用
• 工业电机系统 - 泵、风机、压缩机等设备
• 替代传统设备 - 可替代双金属过载继电器、定时器等
• 工业自动化领域 - 各类电机保护与控制应用

相关型号

同系列其他型号：

• MMII-C-0-0-120 - 机箱安装版本
• MMII-PD-1-2-240 - 240V AC版本
• MMII-PD-1-2-MOD616-120 - 带Modbus选项版本
• FMII-712-PD - 第一代电机管理器

配套选项

• DIN导轨安装套件：MMII-DIN-ADPTR - 用于非接触器安装
• 兼容接触器：仅特定GE AF系列支持直接卡扣式安装

GE Multilin MMII-PD-1-2-120 motor protection relay

Basic Product Information

Project Information

Brand GE Multilin

Product series Motor Manager II (MMII)

Model MMII-PD-1-2-120

Product Type: Intelligent Motor Management and Protection Device

Manufacturing location: Markham, Ontario, Canada

Size 7.4 inches long x 4.4 inches high x 5 inches wide

Weight 3 pounds (approximately 1.36kg)

Software EnerVista MMII

Model code structure description

Meaning of Code Bit Encoding

MMII - Motor Manager II (Second Generation Motor Manager)

P panel installation with display panel installation

D Number Input Number Input Options

1- Function/Option Code

2 process inputs, 10 programmable process inputs

120 Control Voltage 120V AC Control Power Supply

Electrical specifications

Power and Control:

Control voltage: 120V AC (80-135V AC, 50/60Hz)

Power consumption: as low as 15W

Input/output configuration:

Fixed inputs: 6

Programmable inputs: 10 (process input options)

Process inputs: 2

Output: 2 contactor outputs+2 programmable outputs+4 main relays (including auxiliary relays)

Analog input:

Range: 4-20 mA

Accuracy: ± 2% (single-phase)

Contact rating:

250 VAC

protection function

MMII-PD-1-2-120 provides comprehensive motor protection functions:

Overload protection - prevent motor overload damage

Short circuit protection - quickly cut off when the circuit is short circuited

Ground fault protection - Ground fault detection

Phase unbalance protection - prevents three-phase unbalance operation

Over temperature protection - motor overheating detection

Stuck/stall protection - motor start failure or jamming protection

Undervoltage/Overvoltage Protection - Voltage Abnormal Protection

control function

Motor start stop control

Acceleration/deceleration control

Sequential startup function

Remote/Local Operation Mode

Under voltage automatic restart function

Intelligent diagnostic function

Communication and Interface

Project specifications

Communication interface RS485

Communication Protocol Modbus RTU

Baud rate 1200 to 19200 bps

Display 2-line alphanumeric LCD

User interface buttons and LED indicator lights

Environmental specifications

Parameter specifications

Working temperature: 0 ° C to 60 ° C

Storage temperature -40 ° C to+85 ° C

Humidity ranging from 5% to 95%

Shell material ABS or metal embedded panel

Protection level IP20 (panel installation)/optional IP54

Certified UL, CSA, CE, IEC standards

Application scenarios

Mainly used for:

Motor Control Center (MCC) - Application of Low Voltage Motor Control Center

Industrial motor system - equipment such as pumps, fans, compressors, etc

ｒｅｐｌａｃｅ traditional equipment - can ｒｅｐｌａｃｅ bimetallic overload relays, timers, etc

Industrial Automation Field - Various Motor Protection and Control Applications

Related models

Other models in the same series:

MMII-C-0-0-120- Chassis Installation Version

MMII-PD-1-2-240-240V AC version

MMII-PD-1-2-MOD616-120- Version with Modbus option

FMII-712-PD - First Generation Motor Manager

Supporting options

DIN rail installation kit: MMII-DIN-ADPTR - for non contactor installation

Compatible contactors: Only specific GE AF series support direct snap on installation