
Siemens Industrial Controls 42EF35AF Contactor
The Siemens 42EF35AF Definite Purpose Contactor is a heavy-duty industrial control engineered for demanding HVACR and motor control applications. This 3-pole 60-amp contactor is designed to handle high-current inductive loads, making it a reliable choice for commercial air conditioning compressor staging and industrial pump systems. Operating with a 110/120V coil voltage, this non-reversing Class 42 DP contactor ensures efficient switching of three-phase power circuits up to 600VAC. The compact, open-frame design allows for streamlined installation in control panels while providing high horsepower ratings of up to 25 HP at 480V and 30 HP at 600V. Built with silver cadmium oxide contacts, the 42EF35AF resists welding and pitting under high-cycle conditions, extending the mechanical life of your power terminations. For technicians performing retrofits, the industry-standard mounting base and integrated box lugs facilitate a secure electrical connection with a 50 lbf-in tightening torque, ensuring system stability in high-vibration environments.
Key Benefits- High Amperage Capacity: Rated for a 60A full load current and 75A resistive load, ideal for heavy-duty motors and compressors.
- Robust Coil Performance: Features a high-quality 110V-120VAC coil with Class F insulation to withstand thermal stress and reduce chattering.
- Durable Construction: Equipped with weld-resistant contacts to ensure long-term reliability in frequent switching cycles.
- Universal Compatibility: Standardized footprint allows for direct replacement of existing definite purpose controls in diverse industrial settings.
- Arc Suppression: Designed with protective housing features to minimize dust penetration and manage arcing across all three poles.
What is the maximum voltage this contactor can handle?
The Siemens 42EF35AF is rated for a maximum operating voltage of 600VAC on the main current circuit, making it suitable for both 240V and 480V three-phase systems.
Can I add auxiliary contacts to this unit?
Yes, this Class 42 model supports snap-on auxiliary contacts (typically 4NO/4NC configurations), allowing you to integrate feedback loops or status signaling into your control logic.
Is this contactor finger-safe?
This specific model is an open-type contactor and is not classified as finger-safe. It must be installed within a protective NEMA-rated enclosure to ensure operator safety.
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 42EF35AF Contactor
The Siemens 42EF35AF Definite Purpose Contactor is a heavy-duty industrial control engineered for demanding HVACR and motor control applications. This 3-pole 60-amp contactor is designed to handle high-current inductive loads, making it a reliable choice for commercial air conditioning compressor staging and industrial pump systems. Operating with a 110/120V coil voltage, this non-reversing Class 42 DP contactor ensures efficient switching of three-phase power circuits up to 600VAC. The compact, open-frame design allows for streamlined installation in control panels while providing high horsepower ratings of up to 25 HP at 480V and 30 HP at 600V. Built with silver cadmium oxide contacts, the 42EF35AF resists welding and pitting under high-cycle conditions, extending the mechanical life of your power terminations. For technicians performing retrofits, the industry-standard mounting base and integrated box lugs facilitate a secure electrical connection with a 50 lbf-in tightening torque, ensuring system stability in high-vibration environments.
Key Benefits- High Amperage Capacity: Rated for a 60A full load current and 75A resistive load, ideal for heavy-duty motors and compressors.
- Robust Coil Performance: Features a high-quality 110V-120VAC coil with Class F insulation to withstand thermal stress and reduce chattering.
- Durable Construction: Equipped with weld-resistant contacts to ensure long-term reliability in frequent switching cycles.
- Universal Compatibility: Standardized footprint allows for direct replacement of existing definite purpose controls in diverse industrial settings.
- Arc Suppression: Designed with protective housing features to minimize dust penetration and manage arcing across all three poles.
What is the maximum voltage this contactor can handle?
The Siemens 42EF35AF is rated for a maximum operating voltage of 600VAC on the main current circuit, making it suitable for both 240V and 480V three-phase systems.
Can I add auxiliary contacts to this unit?
Yes, this Class 42 model supports snap-on auxiliary contacts (typically 4NO/4NC configurations), allowing you to integrate feedback loops or status signaling into your control logic.
Is this contactor finger-safe?
This specific model is an open-type contactor and is not classified as finger-safe. It must be installed within a protective NEMA-rated enclosure to ensure operator safety.
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 42EF35AF Definite Purpose Contactor is a heavy-duty industrial control engineered for demanding HVACR and motor control applications. This 3-pole 60-amp contactor is designed to handle high-current inductive loads, making it a reliable choice for commercial air conditioning compressor staging and industrial pump systems. Operating with a 110/120V coil voltage, this non-reversing Class 42 DP contactor ensures efficient switching of three-phase power circuits up to 600VAC. The compact, open-frame design allows for streamlined installation in control panels while providing high horsepower ratings of up to 25 HP at 480V and 30 HP at 600V. Built with silver cadmium oxide contacts, the 42EF35AF resists welding and pitting under high-cycle conditions, extending the mechanical life of your power terminations. For technicians performing retrofits, the industry-standard mounting base and integrated box lugs facilitate a secure electrical connection with a 50 lbf-in tightening torque, ensuring system stability in high-vibration environments.
Key Benefits- High Amperage Capacity: Rated for a 60A full load current and 75A resistive load, ideal for heavy-duty motors and compressors.
- Robust Coil Performance: Features a high-quality 110V-120VAC coil with Class F insulation to withstand thermal stress and reduce chattering.
- Durable Construction: Equipped with weld-resistant contacts to ensure long-term reliability in frequent switching cycles.
- Universal Compatibility: Standardized footprint allows for direct replacement of existing definite purpose controls in diverse industrial settings.
- Arc Suppression: Designed with protective housing features to minimize dust penetration and manage arcing across all three poles.
What is the maximum voltage this contactor can handle?
The Siemens 42EF35AF is rated for a maximum operating voltage of 600VAC on the main current circuit, making it suitable for both 240V and 480V three-phase systems.
Can I add auxiliary contacts to this unit?
Yes, this Class 42 model supports snap-on auxiliary contacts (typically 4NO/4NC configurations), allowing you to integrate feedback loops or status signaling into your control logic.
Is this contactor finger-safe?
This specific model is an open-type contactor and is not classified as finger-safe. It must be installed within a protective NEMA-rated enclosure to ensure operator safety.
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.












