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ABB IEMMU21 Rear mount chassis module mounting unit

ABB IEMMU21 Rear mount chassis module mounting unit

Brand	ABB
Module Number	IEMMU21
Price	$300
Country Of Origin	Sweden
Weight	0.4kg
Certificate	C/O from the Chamber of Commerce C/Q from the manufacturer
Warranty	12 Months
Inventory Qty	10

Description

Payment & Security

DataSheet Download

Description

ABB IEMMU21Technical specifications

Rated current: 0.1–820 A (configurable)

Voltage range: Three-phase 200–690 V AC, 50/60 Hz

Protection functions: Overload, short circuit (instantaneous/definite time), phase loss, unbalance (>30%), ground fault (50–3000 mA)

Communication interface: 1 x RS-485 (Modbus RTU), 1 x Ethernet (Modbus TCP, optional communication module required)

Measurement accuracy: Current ±1%, Voltage ±0.5%, Power ±2%

Power requirements: Auxiliary power supply 24–240 V AC/DC (±20%), power consumption ≤5 W

Operating temperature: -25°C to +70°C

Storage temperature: -40°C to +85°C; humidity ≤95%

Certification standards: CE, UL, IEC 60947-4-1, IEC 62061 (SIL2)

Installation capacity: Up to 12 system modules can be installed, including I/O modules and power modules, etc.

Installation method: Rear installation, suitable for standard 19-inch (483 mm) cabinets

Compatibility: Equivalent to the IEMMU01 and IEMMU02 module installation units, can be used as a replacement.

Abb IEMMU21

Purpose:ABB IEMMU21 is an intelligent motor management module designed for low-voltage motor protection and control. It can be integrated into ABB's MNS series low-voltage switchgear or installed independently to achieve motor overload protection, fault diagnosis and energy consumption monitoring.
Applications:ABB IEMMU21 is mainly used in the industry and infrastructure fields, including water treatment plants, manufacturing production lines, commercial building HVAC systems and mining equipment, and is suitable for automation scenarios that require high-reliability motor management.

Payment & Security

Beneficiary's Bank: CITIBANK N.A.
Beneficiary address:Champion Tower,Three Garden Road,Central,Hong Kong
Beneficiary: Vogi International Trading Co., Limited
Account No.: 395714900
Bank Code: 006 Branch Code: 391
Swift Code:CITIHKHX (CITIHKHXXXX * If 11 characters are required)
Payment Term：T/T

DataSheet Download

ABB IEMMU21Key features

Comprehensive protection function:ABB IEMMU21 supports overload, short circuit, phase loss, unbalanced current, ground fault and other protections.

Intelligent monitoring: real-time monitoring of motor current, voltage, power, energy consumption and running time, supporting Modbus RTU/TCP communication.

Adaptive control: automatically adjust the protection threshold to adapt to the motor starting characteristics.

Diagnosis and maintenance: ABB IEMMU21 built-in fault record, predictive maintenance reminder.

Compact design: modular structure, ABB IEMMU21support DIN rail installation, save power distribution cabinet space.

High environmental adaptability: wide operating temperature range, protection level IP20, anti-vibration, electromagnetic interference.

Alternative models

Model	Mounting Type	Power Distribution	Module Capacity	Description
IEMMU11	Rear Mount	No	12	No main power distribution, suitable for standard installations.
IEMMU12	Rear Mount	Yes	12	Includes integrated main power distribution for simplified wiring.
IEMMU21	Rear Mount	No	12	No main power distribution, suitable for standard installations.
IEMMU22	Front Mount	No	12	No main power distribution, used for special cabinet configurations.

Substitution Analysis:
The IEMMU21 is functionally equivalent to the IEMMU01 and IEMMU02 units and can be used as a direct replacement. However, when used in mixed environments with older models, transition board assemblies may be required to ensure full compatibility.