Siemens 3RT1045-1AP00 Power Contactor 80A 37kW AC-3 3-Pole 24V
Siemens 3RT1045-1AP00 Power Contactor 80A 37kW AC-3 3-Pole 24V
Manufacturer: Siemens
Product No.: 3RT1045-1AP00
Condition:1000 in stock
Product Type: Industrial Contactor
Product Origin: 4011209715943
Payment: T/T, Western Union
Weight: 1842g
Shipping port: Xiamen
Warranty: 12 months
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Siemens 3RT1045-1AP00 SIRIUS 3RT1 Power Contactor - Industrial-Grade Switching Solution
The Siemens 3RT1045-1AP00 represents cutting-edge electromagnetic switching technology engineered for demanding industrial automation environments. This robust 3-pole power contactor delivers exceptional performance in motor control, heating systems, and power distribution applications where reliability is non-negotiable.
Technical Specifications
- Model Number: 3RT1045-1AP00
- Rated Operational Current (AC-3): 80A at 400V
- Power Rating (AC-3): 37kW (50Hz) / 40HP (60Hz)
- Number of Poles: 3 main contacts (3NO)
- Control Voltage: 24V AC (50/60Hz)
- Auxiliary Contacts: 1NO + 1NC standard configuration
- Mechanical Life: 10 million operations
- Electrical Life (AC-3): 1.5 million operations
- Operating Temperature: -25°C to +60°C
- Protection Rating: IP20 (front), IP00 (terminals)
- Mounting: Screw or snap-on to 35mm DIN rail
- Connection Type: Screw terminals
Application Scenarios
Motor Control Systems: Ideal for starting, stopping, and reversing three-phase asynchronous motors up to 37kW in industrial machinery, conveyor systems, pumps, and compressors.
HVAC Equipment: Perfect for controlling large ventilation fans, air handling units, and commercial refrigeration compressors in building automation systems.
Process Industries: Trusted in chemical processing, water treatment plants, and manufacturing facilities for reliable switching of resistive and inductive loads.
Power Distribution: Essential component in distribution panels, motor control centers (MCC), and automated production lines requiring frequent switching operations.
Engineering Solutions & Benefits
Compact Design: Space-saving footprint allows high-density installation in control cabinets while maintaining optimal heat dissipation and accessibility for maintenance.
Universal Compatibility: Seamlessly integrates with Siemens SIRIUS modular system components including overload relays (3RU series), auxiliary contact blocks, and surge suppressors for complete motor protection solutions.
Enhanced Safety: Built-in arc suppression technology and flame-retardant housing materials ensure safe operation in accordance with IEC 60947-4-1 and UL 508 standards.
Operational Efficiency: Low power consumption coil design reduces energy costs while maintaining reliable switching performance across wide voltage tolerance ranges (0.8-1.1 Un).
Common Questions & Answers
Q: Can this contactor be used with DC control voltage?
A: This specific model (3RT1045-1AP00) is designed for 24V AC coil operation. For DC applications, please consider the 3RT1045-1AD20 variant with 110V DC coil or contact our technical team for alternative solutions.
Q: What overload relay should I pair with this contactor?
A: We recommend the Siemens 3RU1146-4KB0 overload relay (adjustment range 63-80A) for optimal motor protection. The relay mounts directly to the contactor for a compact assembly.
Q: Is this suitable for reversing motor applications?
A: Yes, two 3RT1045-1AP00 contactors can be configured in a reversing starter arrangement with appropriate mechanical and electrical interlocking to prevent simultaneous energization.
Q: What is the expected lifespan in typical industrial use?
A: Under normal AC-3 duty cycle conditions (motor starting/stopping), expect 1.5 million electrical operations. For lighter loads or infrequent switching, mechanical life extends to 10 million operations.
Warranty & Support
Every Siemens 3RT1045-1AP00 power contactor includes a comprehensive 12-month manufacturer warranty covering defects in materials and workmanship. Our technical support team provides application assistance, wiring diagrams, and troubleshooting guidance to ensure successful integration into your control systems.
Related Products You May Need
Complete your motor control solution with these compatible components:
- Siemens 3RU1136-4HB0 Overload Relay - Thermal overload protection for motor circuits
- Siemens 3TF30-10-0AP0 Contactor Size 00 - Compact contactor for auxiliary circuits
- Siemens 6ES7322-1FH00-0AA0 SM 322 Digital Output Module - PLC output module for automated control
© 2025 INDUSTRIAL CONTROL HUB. All rights reserved.
Original Source: https://www.indctrlhub.com
Contact: sales@indctrlhub.com | +0086 18359243191
Product Description
Siemens 3RT1045-1AP00 SIRIUS 3RT1 Power Contactor - Industrial-Grade Switching Solution
The Siemens 3RT1045-1AP00 represents cutting-edge electromagnetic switching technology engineered for demanding industrial automation environments. This robust 3-pole power contactor delivers exceptional performance in motor control, heating systems, and power distribution applications where reliability is non-negotiable.
Technical Specifications
- Model Number: 3RT1045-1AP00
- Rated Operational Current (AC-3): 80A at 400V
- Power Rating (AC-3): 37kW (50Hz) / 40HP (60Hz)
- Number of Poles: 3 main contacts (3NO)
- Control Voltage: 24V AC (50/60Hz)
- Auxiliary Contacts: 1NO + 1NC standard configuration
- Mechanical Life: 10 million operations
- Electrical Life (AC-3): 1.5 million operations
- Operating Temperature: -25°C to +60°C
- Protection Rating: IP20 (front), IP00 (terminals)
- Mounting: Screw or snap-on to 35mm DIN rail
- Connection Type: Screw terminals
Application Scenarios
Motor Control Systems: Ideal for starting, stopping, and reversing three-phase asynchronous motors up to 37kW in industrial machinery, conveyor systems, pumps, and compressors.
HVAC Equipment: Perfect for controlling large ventilation fans, air handling units, and commercial refrigeration compressors in building automation systems.
Process Industries: Trusted in chemical processing, water treatment plants, and manufacturing facilities for reliable switching of resistive and inductive loads.
Power Distribution: Essential component in distribution panels, motor control centers (MCC), and automated production lines requiring frequent switching operations.
Engineering Solutions & Benefits
Compact Design: Space-saving footprint allows high-density installation in control cabinets while maintaining optimal heat dissipation and accessibility for maintenance.
Universal Compatibility: Seamlessly integrates with Siemens SIRIUS modular system components including overload relays (3RU series), auxiliary contact blocks, and surge suppressors for complete motor protection solutions.
Enhanced Safety: Built-in arc suppression technology and flame-retardant housing materials ensure safe operation in accordance with IEC 60947-4-1 and UL 508 standards.
Operational Efficiency: Low power consumption coil design reduces energy costs while maintaining reliable switching performance across wide voltage tolerance ranges (0.8-1.1 Un).
Common Questions & Answers
Q: Can this contactor be used with DC control voltage?
A: This specific model (3RT1045-1AP00) is designed for 24V AC coil operation. For DC applications, please consider the 3RT1045-1AD20 variant with 110V DC coil or contact our technical team for alternative solutions.
Q: What overload relay should I pair with this contactor?
A: We recommend the Siemens 3RU1146-4KB0 overload relay (adjustment range 63-80A) for optimal motor protection. The relay mounts directly to the contactor for a compact assembly.
Q: Is this suitable for reversing motor applications?
A: Yes, two 3RT1045-1AP00 contactors can be configured in a reversing starter arrangement with appropriate mechanical and electrical interlocking to prevent simultaneous energization.
Q: What is the expected lifespan in typical industrial use?
A: Under normal AC-3 duty cycle conditions (motor starting/stopping), expect 1.5 million electrical operations. For lighter loads or infrequent switching, mechanical life extends to 10 million operations.
Warranty & Support
Every Siemens 3RT1045-1AP00 power contactor includes a comprehensive 12-month manufacturer warranty covering defects in materials and workmanship. Our technical support team provides application assistance, wiring diagrams, and troubleshooting guidance to ensure successful integration into your control systems.
Related Products You May Need
Complete your motor control solution with these compatible components:
- Siemens 3RU1136-4HB0 Overload Relay - Thermal overload protection for motor circuits
- Siemens 3TF30-10-0AP0 Contactor Size 00 - Compact contactor for auxiliary circuits
- Siemens 6ES7322-1FH00-0AA0 SM 322 Digital Output Module - PLC output module for automated control
© 2025 INDUSTRIAL CONTROL HUB. All rights reserved.
Original Source: https://www.indctrlhub.com
Contact: sales@indctrlhub.com | +0086 18359243191