Description

The ABB 1SAJ530000R0200 (type designation UMC100.3 DC) is an intelligent motor management device designed for comprehensive motor protection, control, and fault monitoring. Powered by a 24 V DC control supply voltage, this compact controller provides advanced motor protection against overload and phase failure across an operational current setting range of 0.24 A to 63 A directly.

Equipped with 6 digital inputs, 4 digital outputs, and a dedicated PTC thermistor input, the UMC100.3 DC integrates control logic with physical process signals. It supports flexible industrial network integration and can connect to fieldbus and Ethernet communication networks via optional communication adapters. Additionally, this model holds ATEX approval for motor protection in hazardous environment applications.

Features

• Powered by a 24 V DC auxiliary control supply
• Direct current setting range from 0.24 A to 63 A
• Configurable overload trip protection supporting classes 5E, 10E, 20E, 30E, and 40E
• Integrated I/O layout featuring 6 digital inputs, 4 digital outputs, and 1 PTC thermistor input
• ATEX certified for protected motor operation in explosive atmospheres
• Modular communication design supporting PROFIBUS DP, Modbus RTU, Modbus TCP, PROFINET, and EtherNet/IP via optional interface modules
• Designed for main circuit operational voltages up to 690 V AC and 1000 V AC

Applications

• Intelligent Motor Control Center (MCC) panels and low-voltage switchgear installations
• Overload and thermal protection for three-phase AC induction motors in process automation
• Hazardous area motor management requiring ATEX certified protective devices
• Heavy industrial drives and grinding system control blocks

Technical Specifications

General

Electrical & Operating Ratings

Input / Output

Wiring & Mechanical

Environmental

Installation Guidelines

1. Verify that the auxiliary control supply is a clean 24 V DC power source before energizing the module.
2. Mount the UMC100.3 DC onto a standard DIN rail or panel surface in any permissible mounting position (1 to 6). Zero minimum mounting distance is required between adjacent devices.
3. Strip control and auxiliary wiring to 7 mm and secure into the screw terminals using a Pozidriv 1 screwdriver tightened to 0.5 N·m (8 in-lb).
4. Route the primary motor phase conductors through the integrated internal current transformers according to standard three-phase sequencing.
5. Connect external PTC temperature sensors to the dedicated PTC input terminals if motor winding temperature monitoring is required.
6. Snap on the required communication interface module (e.g., PROFINET, PROFIBUS, or Modbus) or control panel cable onto the front expansion port.

Replacement Recommendations

1. Disconnect and lock out all main three-phase power lines and the 24 V DC auxiliary control power supply before performing servicing.
2. Record or back up the current parameter profile using the UMC100-PAN control panel or FDT/DTM software prior to removing the faulty device.
3. Label all control and digital I/O wiring harnesses connected to the terminal blocks before removal.
4. Unclip the existing unit from the DIN rail and mount the replacement 1SAJ530000R0200 module.
5. Reconnect screw terminals to specified torque limits and download the original configuration parameters into the new UMC100.3 DC unit.

Compliance and Certifications

• Explosion Protection: ATEX certified (IEC/EN 60079-7)
• Safety & Standards: IEC/EN 60947-1, IEC/EN 60947-4-1, IEC/EN 60947-5-1, IEC/EN 60947-8, UL 508, CAN/CSA C22.2 No.60947-1, CAN/CSA C22.2 No.60947-4-1
• Product Declarations: CE, CCC, cULus, ABS, DNV, CB
• Environmental Directives: RoHS (Directive 2011/65/EU), REACH