Overview
The ABB BAMU-11 is a motor protection relay designed for industrial motors. It monitors motor current, detects overloads, phase loss, and provides automatic tripping to protect motors from damage, ensuring reliable operation and extended equipment life.
General Information
Part Number: 3AUA0000109935
Brand / Country of Origin: ABB / Sweden
Manufacturer: ABB
Series: BAMU
Type: Motor Protection Relay
Mounting: Panel or DIN rail installation
Function: Provides motor overload, phase failure, and fault protection with automatic tripping
Power Specifications
Supply Voltage: 24–60 V DC or 110–240 V AC (configuration dependent)
Power Consumption: Low-power design
Input Source: Control or auxiliary supply
Protection: Built-in surge and short-circuit protection
Indicators: LEDs for operational status, fault, and trip
Communication & Interface
Interface Type: Hardwired input and output terminals
Signal Support: Motor start/stop control, alarm outputs
Diagnostics: Status indication for faults and operation
Operator Access: Front-panel LED indicators and reset button
Environmental
Operating Temperature: −20 to +60 °C
Humidity: Up to 95% RH, non-condensing
Installation Environment: Standard industrial cabinet or panel
Durability: Resistant to vibration, electrical noise, and industrial conditions
Dimensions & Weight
Dimensions (L × W × H): 90 × 45 × 60 mm
Weight: ~0.2 kg
