
Siemens Industrial Controls 3RT2045-1AK60 Contactor
The Siemens Sirius 3RT2045-1AK60 is a heavy-duty S3 size contactor designed for high-demand industrial motor switching and HVACR applications. Engineered for reliability, this 3-pole unit supports a 110V/120V AC coil (50/60 Hz) and provides a robust 80 Amp AC-3 rating (37 kW at 400V) and a 120 Amp AC-1 rating for resistive loads. As the direct 3RT1045-1AK60 replacement, it fits seamlessly into the SIRIUS modular system, ensuring compatibility with 3RU2146 thermal and 3RB3046 electronic overload relays. The integrated 1 NO + 1 NC auxiliary contacts streamline wiring for feedback loops and safety interlocking. Built with screw terminals, it maintains high contact reliability in vibration-prone environments. This industrial motor starter component is climate-resistant and finger-safe, making it a staple for contractors replacing critical power contactors in large-scale air conditioning or process control panels.
Key Benefits- High Switching Capacity: Handles up to 80A for inductive loads and 120A for resistive loads, ideal for heavy 380-480V motors.
- Modular Flexibility: Designed for the Siemens Sirius 3RT2 ecosystem, allowing snap-on auxiliary blocks and surge suppressors.
- S3 Frame Size: Compact yet powerful footprint for space-constrained industrial control cabinets.
- Enhanced Safety: IP20 finger-safe protection and mechanical service life of up to 10 million operating cycles.
- Easy Retrofitting: Perfect 80A 3-pole contactor for upgrading older Siemens 3RT1 series hardware without panel redesign.
Is the 3RT2045-1AK60 compatible with my older 3RT1 series components?
Yes, this unit is the engineered successor to the 3RT1045 and integrates directly with most SIRIUS accessories, such as link modules and function modules.
What are the coil specifications for this contactor?
This model utilizes an AC coil rated for 110V at 50Hz and 120V at 60Hz, covering standard North American and global voltage requirements.
Can I add more auxiliary contacts to this frame?
Absolutely. While it comes with a built-in 1 NO and 1 NC contact, the S3 frame supports additional front-mounted or side-mounted auxiliary switch blocks.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Siemens Industrial Controls 3RT2045-1AK60 Contactor
The Siemens Sirius 3RT2045-1AK60 is a heavy-duty S3 size contactor designed for high-demand industrial motor switching and HVACR applications. Engineered for reliability, this 3-pole unit supports a 110V/120V AC coil (50/60 Hz) and provides a robust 80 Amp AC-3 rating (37 kW at 400V) and a 120 Amp AC-1 rating for resistive loads. As the direct 3RT1045-1AK60 replacement, it fits seamlessly into the SIRIUS modular system, ensuring compatibility with 3RU2146 thermal and 3RB3046 electronic overload relays. The integrated 1 NO + 1 NC auxiliary contacts streamline wiring for feedback loops and safety interlocking. Built with screw terminals, it maintains high contact reliability in vibration-prone environments. This industrial motor starter component is climate-resistant and finger-safe, making it a staple for contractors replacing critical power contactors in large-scale air conditioning or process control panels.
Key Benefits- High Switching Capacity: Handles up to 80A for inductive loads and 120A for resistive loads, ideal for heavy 380-480V motors.
- Modular Flexibility: Designed for the Siemens Sirius 3RT2 ecosystem, allowing snap-on auxiliary blocks and surge suppressors.
- S3 Frame Size: Compact yet powerful footprint for space-constrained industrial control cabinets.
- Enhanced Safety: IP20 finger-safe protection and mechanical service life of up to 10 million operating cycles.
- Easy Retrofitting: Perfect 80A 3-pole contactor for upgrading older Siemens 3RT1 series hardware without panel redesign.
Is the 3RT2045-1AK60 compatible with my older 3RT1 series components?
Yes, this unit is the engineered successor to the 3RT1045 and integrates directly with most SIRIUS accessories, such as link modules and function modules.
What are the coil specifications for this contactor?
This model utilizes an AC coil rated for 110V at 50Hz and 120V at 60Hz, covering standard North American and global voltage requirements.
Can I add more auxiliary contacts to this frame?
Absolutely. While it comes with a built-in 1 NO and 1 NC contact, the S3 frame supports additional front-mounted or side-mounted auxiliary switch blocks.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Siemens Sirius 3RT2045-1AK60 is a heavy-duty S3 size contactor designed for high-demand industrial motor switching and HVACR applications. Engineered for reliability, this 3-pole unit supports a 110V/120V AC coil (50/60 Hz) and provides a robust 80 Amp AC-3 rating (37 kW at 400V) and a 120 Amp AC-1 rating for resistive loads. As the direct 3RT1045-1AK60 replacement, it fits seamlessly into the SIRIUS modular system, ensuring compatibility with 3RU2146 thermal and 3RB3046 electronic overload relays. The integrated 1 NO + 1 NC auxiliary contacts streamline wiring for feedback loops and safety interlocking. Built with screw terminals, it maintains high contact reliability in vibration-prone environments. This industrial motor starter component is climate-resistant and finger-safe, making it a staple for contractors replacing critical power contactors in large-scale air conditioning or process control panels.
Key Benefits- High Switching Capacity: Handles up to 80A for inductive loads and 120A for resistive loads, ideal for heavy 380-480V motors.
- Modular Flexibility: Designed for the Siemens Sirius 3RT2 ecosystem, allowing snap-on auxiliary blocks and surge suppressors.
- S3 Frame Size: Compact yet powerful footprint for space-constrained industrial control cabinets.
- Enhanced Safety: IP20 finger-safe protection and mechanical service life of up to 10 million operating cycles.
- Easy Retrofitting: Perfect 80A 3-pole contactor for upgrading older Siemens 3RT1 series hardware without panel redesign.
Is the 3RT2045-1AK60 compatible with my older 3RT1 series components?
Yes, this unit is the engineered successor to the 3RT1045 and integrates directly with most SIRIUS accessories, such as link modules and function modules.
What are the coil specifications for this contactor?
This model utilizes an AC coil rated for 110V at 50Hz and 120V at 60Hz, covering standard North American and global voltage requirements.
Can I add more auxiliary contacts to this frame?
Absolutely. While it comes with a built-in 1 NO and 1 NC contact, the S3 frame supports additional front-mounted or side-mounted auxiliary switch blocks.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.












