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SIEMENS 3RT1025-1BB40 Power Contactor

Product Description

The SIEMENS 3RT1025-1BB40 is a 3-pole power contactor from the SIRIUS 3RT10 series, designed for industrial motor control and switching applications. It features 3 normally open (NO) main contacts, a 24V DC control coil, and a compact S0 size design, making it ideal for AC-3 motor loads up to 17A at 400V. This contactor complies with IEC 60947, VDE 0660, and GB 14048 standards, ensuring reliable performance in automation systems .

Key Features & Advantages

Robust Motor Control
- AC-3 rating: Supports 7.5 kW at 400V for motor starting, stopping, and reversing .
- High switching capacity: Up to 17A (AC-3) and 40A (AC-1), suitable for industrial machinery .
Durable Construction
- Mechanical lifespan: 10 million operations, with 200,000 electrical cycles at full load .
- Screw terminals for secure wiring, supporting 2.5–6 mm² conductors.
Flexible Integration
- DIN rail mounting (35mm) for easy installation in control panels .
- Compatible with SIRIUS accessories (e.g., auxiliary contacts, surge suppressors) .
Safety & Compliance
- IP20 protection against dust and accidental contact .
- RoHS-compliant and certified for UL, CE, and CCC standards .

Technical Specifications

Parameter	Specification
Rated Voltage	400V AC (50/60Hz)
Rated Current (AC-3)	17A (7.5 kW)
Control Voltage	24V DC
Contact Configuration	3 NO (main)
Mechanical Lifespan	10 million cycles
Electrical Lifespan	200,000 cycles (AC-3)
Dimensions (W×H×D)	45 × 80 × 90 mm
Weight	0.567 kg