Trane CTR2881 Contactor
The Trane CTR2881 Contactor is a heavy-duty, 50A 3P contactor w/aux (auxiliary contact) designed for reliable high-current switching in demanding commercial HVAC maintenance and industrial environments. This genuine OEM Trane replacement part features a 24V coil and a 3-pole configuration, handling a resistive load up to 63A and a switching voltage of 600V. Built for the rigors of HVAC system repair, the CTR2881's integrated auxiliary switch allows for simultaneous control of secondary circuits, such as status indicator lights or interlocking safety controls, making it a critical component for package unit troubleshooting and comprehensive system upgrades. The terminal type utilizes high-quality quick-connect points to ensure a secure, low-resistance connection, reducing heat buildup and extending the operational life of the compressor or motor load it serves. Contractors trust this UL listed 50 amp contactor for its exact fit and consistent pull-in/drop-out voltage performance across Trane rooftop units and chiller applications.
Key Benefits- OEM Precision: Ensures exact electrical specifications and mounting footprint for Trane CTR2881 replacements, eliminating field modifications.
- Integrated Auxiliary Contact: Provides additional SPDT switching capacity for remote monitoring or control circuit interlocking without extra hardware.
- High Current Capacity: Rated for 50 FLA and up to 63A resistive loads, making it suitable for large commercial HVAC compressors and heaters.
- Durability: Silver cadmium oxide contacts resist welding and pitting under high-inrush motor starting conditions.
- Safety Standards: Fully UL listed to meet professional code requirements for industrial electrical equipment.
What is the purpose of the auxiliary contact on this 50A contactor?
The auxiliary contact acts as a secondary switch that triggers when the main 3-pole contacts close. It is typically used for low-voltage signal feedback to a building automation system (BAS) or to energize a crankcase heater when the compressor is off.
Can the CTR2881 be used as a cross-reference for other 50 amp contactors?
While it may physical swap with some universal models, this Trane HVAC part is calibrated for specific pull-in voltages. Technicians should always verify the coil VA rating and physical dimensions before substituting.
What are the signs that my contactor needs replacement?
Common indicators include "chattering" sounds during startup, burnt or pitted contact surfaces, or a failure of the compressor to engage despite the 24V coil being energized.
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.
Original: $275.32
-65%$275.32
$96.36Trane CTR2881 Contactor
The Trane CTR2881 Contactor is a heavy-duty, 50A 3P contactor w/aux (auxiliary contact) designed for reliable high-current switching in demanding commercial HVAC maintenance and industrial environments. This genuine OEM Trane replacement part features a 24V coil and a 3-pole configuration, handling a resistive load up to 63A and a switching voltage of 600V. Built for the rigors of HVAC system repair, the CTR2881's integrated auxiliary switch allows for simultaneous control of secondary circuits, such as status indicator lights or interlocking safety controls, making it a critical component for package unit troubleshooting and comprehensive system upgrades. The terminal type utilizes high-quality quick-connect points to ensure a secure, low-resistance connection, reducing heat buildup and extending the operational life of the compressor or motor load it serves. Contractors trust this UL listed 50 amp contactor for its exact fit and consistent pull-in/drop-out voltage performance across Trane rooftop units and chiller applications.
Key Benefits- OEM Precision: Ensures exact electrical specifications and mounting footprint for Trane CTR2881 replacements, eliminating field modifications.
- Integrated Auxiliary Contact: Provides additional SPDT switching capacity for remote monitoring or control circuit interlocking without extra hardware.
- High Current Capacity: Rated for 50 FLA and up to 63A resistive loads, making it suitable for large commercial HVAC compressors and heaters.
- Durability: Silver cadmium oxide contacts resist welding and pitting under high-inrush motor starting conditions.
- Safety Standards: Fully UL listed to meet professional code requirements for industrial electrical equipment.
What is the purpose of the auxiliary contact on this 50A contactor?
The auxiliary contact acts as a secondary switch that triggers when the main 3-pole contacts close. It is typically used for low-voltage signal feedback to a building automation system (BAS) or to energize a crankcase heater when the compressor is off.
Can the CTR2881 be used as a cross-reference for other 50 amp contactors?
While it may physical swap with some universal models, this Trane HVAC part is calibrated for specific pull-in voltages. Technicians should always verify the coil VA rating and physical dimensions before substituting.
What are the signs that my contactor needs replacement?
Common indicators include "chattering" sounds during startup, burnt or pitted contact surfaces, or a failure of the compressor to engage despite the 24V coil being energized.
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.
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Description
The Trane CTR2881 Contactor is a heavy-duty, 50A 3P contactor w/aux (auxiliary contact) designed for reliable high-current switching in demanding commercial HVAC maintenance and industrial environments. This genuine OEM Trane replacement part features a 24V coil and a 3-pole configuration, handling a resistive load up to 63A and a switching voltage of 600V. Built for the rigors of HVAC system repair, the CTR2881's integrated auxiliary switch allows for simultaneous control of secondary circuits, such as status indicator lights or interlocking safety controls, making it a critical component for package unit troubleshooting and comprehensive system upgrades. The terminal type utilizes high-quality quick-connect points to ensure a secure, low-resistance connection, reducing heat buildup and extending the operational life of the compressor or motor load it serves. Contractors trust this UL listed 50 amp contactor for its exact fit and consistent pull-in/drop-out voltage performance across Trane rooftop units and chiller applications.
Key Benefits- OEM Precision: Ensures exact electrical specifications and mounting footprint for Trane CTR2881 replacements, eliminating field modifications.
- Integrated Auxiliary Contact: Provides additional SPDT switching capacity for remote monitoring or control circuit interlocking without extra hardware.
- High Current Capacity: Rated for 50 FLA and up to 63A resistive loads, making it suitable for large commercial HVAC compressors and heaters.
- Durability: Silver cadmium oxide contacts resist welding and pitting under high-inrush motor starting conditions.
- Safety Standards: Fully UL listed to meet professional code requirements for industrial electrical equipment.
What is the purpose of the auxiliary contact on this 50A contactor?
The auxiliary contact acts as a secondary switch that triggers when the main 3-pole contacts close. It is typically used for low-voltage signal feedback to a building automation system (BAS) or to energize a crankcase heater when the compressor is off.
Can the CTR2881 be used as a cross-reference for other 50 amp contactors?
While it may physical swap with some universal models, this Trane HVAC part is calibrated for specific pull-in voltages. Technicians should always verify the coil VA rating and physical dimensions before substituting.
What are the signs that my contactor needs replacement?
Common indicators include "chattering" sounds during startup, burnt or pitted contact surfaces, or a failure of the compressor to engage despite the 24V coil being energized.
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.
