Key Features & Specifications
1. Electrical Parameters
Current Setting Range: 0.63–1.0 A (adjustable via rotary dial)

Trip Class: 10, 20, 30 (selectable for different motor start conditions)

Rated Operational Voltage (Ue): 690 V AC

Control Supply Voltage: 24 V AC/DC (for auxiliary circuits)

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

2. Protection & Monitoring Functions
Electronic Overload Protection: No bimetallic strips, ensuring consistent tripping accuracy

Phase Loss Detection: Immediate response to missing phases

Current Imbalance Protection: Detects unbalanced loads

Self-Powered Operation: No external supply needed for basic protection

Trip Memory & Indication: LED status display (fault and ready states)

3. Outputs & Control
Auxiliary Contacts:

1 NO (Normally Open) + 1 NC (Normally Closed)

Rated Load: 6 A / 250 V AC

Test/Reset Function: Manual test button and reset selector (auto/manual)

4. Mechanical & Compatibility
Mounting: DIN Rail (35 mm) or direct attachment to SIRIUS 3RT contactors

Terminals: Spring-loaded or screw-type (accepts 0.25–2.5 mm² conductors)

Compatible with:

SIRIUS 3RT/3RH contactors

SIRIUS 3RV circuit breakers

5. Standards & Certifications
IEC/EN 60947-4-1 (Motor starters)

UL 508 (Industrial control equipment)

CE, RoHS, cULus listed

Advantages Over Thermal Relays
✔ No Mechanical Wear – Solid-state design ensures long service life
✔ Adjustable Trip Class – Supports heavy starts (Class 30) or frequent cycling
✔ Diagnostic LEDs – Quick fault identification
✔ Space-Saving – Compact footprint for high-density control panels

Typical Applications
Precision Motor Protection (Pumps, Fans, Conveyors)

HVAC & Compressor Systems

Packaging & Textile Machinery

Renewable Energy Systems (Wind/Solar Inverters)