Key Specifications
Electrical Characteristics

Current Setting Range: 0.16-0.25A (continuously adjustable)

Trip Class: Selectable (10/20/30)

Rated Operational Voltage: 690V AC

Control Supply Voltage: 24V AC/DC (self-powered for basic functions)

Ambient Temperature Range: -25°C to +60°C

Protection Features

Electronic overload protection with ±5% accuracy

Phase loss detection

Current imbalance protection

Ground fault monitoring (with optional modules)

Motor thermal modeling for accurate protection

Control & Monitoring

Auxiliary Contacts: 1NO + 1NC (6A/250V AC)

LED Indicators: Power ON, Ready, Fault

Test/Reset Function: Manual test button with auto/manual reset selector

Mechanical Design

Compact DIN rail mounting (35mm)

Spring-loaded terminals (0.25-2.5mm² conductors)

IP20 protection degree

Direct coupling with SIRIUS 3RT contactors

Communication & Integration

Optional PROFIBUS/PROFINET communication (with 3RB30 module)

Compatible with Siemens SIMATIC automation systems

Standards Compliance

IEC/EN 60947-4-1

UL 508

CE, cULus, RoHS compliant

Typical Applications
Precision motor protection in manufacturing

Small motor control in automation systems

Pump and fan control applications

Conveyor systems with small motors

Laboratory and testing equipment