Specifications
General
Product Name: Industrial AC Power Contactor
Model / Part Number: 1SBL351074R8011
Series: AX50
Application: Switching and control of three‑phase motors and power loads
Mounting: DIN‑rail / panel mount
Main Poles: 3
Electrical Ratings
Coil Voltage: 220–230 V AC, 50 Hz / 230–240 V AC, 60 Hz
Rated Operational Voltage (Ue): Up to 690 V AC
Rated Operational Current:
• AC‑3 (motor duty): ~50 A @ 415 V AC
• AC‑1 (general use): ~85–100 A
Rated Power (AC‑3 motor duty): ~25 kW @ 415 V AC, ~30 kW @ 500–690 V AC, ~15 kW @ 220–240 V AC
Contacts
Main Contacts: 3 NO (normally open) poles
Auxiliary Contacts: 1 NO + 1 NC
Contact Utilization: Suitable for AC‑3 motor loads and general AC switching
Performance
Conventional Free‑air Thermal Current (Ith): ~100 A
Mechanical Endurance: Up to 10 million operating cycles
Electrical Endurance: Rated for frequent load switching at specified AC ratings
Mechanical
Poles: 3
Dimensions (approx): 108 mm H × 82 mm W × 110 mm D
Weight: ~1.05–1.16 kg
Terminal Type: Screw terminals
Protection Class: IP20
Environmental
Operating Temperature: –40 °C to +70 °C
Storage Temperature: –60 °C to +80 °C
Maximum Operating Altitude: Up to 3000 m without derating
Standards & Compliance
Designed per IEC 60947‑4‑1 for contactors and motor starters
Suitable for industrial motor control and power switching
Typical Applications
Three‑phase motor starters
Industrial automation panels
Power distribution contact switching
HVAC and pump control systems
Integration with overload relays and control logic
The ABB 1SBL351074R8011 is a 3‑phase power contactor from ABB’s AX50 contactor family, designed for reliable switching and control of three‑phase motors and power circuits. It is a block‑type AC contactor intended for industrial and commercial applications where frequent and robust switching is required. The unit includes built‑in auxiliary contacts for signalling and interlock functions, and is suitable for use in motor starters, automation systems, and general power control panels.