Liebert 123273P1S Contactor
The Liebert 123273P1S Contactor is a precision-engineered three-pole magnetic contactor designed for high-cycle applications within critical infrastructure cooling systems. Rated for 30 Amps FLA with a 24V AC coil secondary, this component is a drop-in replacement for failed contactors in Liebert Challenger, Deluxe System/3, and DataMate precision air conditioning units. The unit features built-in auxiliary contacts (NO/NC), allowing for immediate feedback loops to the system logic controller for status monitoring or interlocking. Engineered for inductive loads, its heavy-duty silver cadmium oxide contacts resist welding and pitting, ensuring long-term conductivity even under the high-inrush current demands of scroll compressors and blower motors. For technicians performing preventative maintenance or emergency repairs, the compact frame and standard HVAC contactor wiring layout facilitate a fast installation, maintaining the strict uptime requirements of data center environments.
Technical Specifications and Benefits:- 3-Pole Power Configuration: Designed for 208/230V or 460V three-phase motor loads common in Liebert CRAC units.
- 30 Amp Rated Load: Built to handle definite purpose inductive loads with high reliability.
- Integrated Auxiliary Switches: Includes one Normally Open (NO) and one Normally Closed (NC) set of dry contacts for signal integration.
- 24VAC Control Circuit: Interfaces directly with standard HVAC control transformers and circuit boards.
- DIN Rail or Screw Mounting: Flexible mounting options for standard Liebert electrical control cabinets.
What typically causes a contactor failure in a Liebert unit?
Failure is often due to pitted contacts from high-cycle switching or a burnt-out 24V coil. If the 123273P1S chatter is audible, check the control voltage under load to ensure the transformer provides sufficient VA.
Can I use this to replace a single-pole or two-pole contactor?
While a 3-pole contactor can technically interrupt fewer phases, it is specifically designed for 3-phase machinery. Always match the FLA (Full Load Amps) and coil voltage to the original equipment manufacturer (OEM) specifications to avoid premature failure.
How do I wire the auxiliary contacts?
The auxiliary terminals are side-mounted. The NO contact is typically used for "Run" confirmation to the microprocessor, while the NC contact can be used for lockout or alarm circuits when the contactor is de-energized.
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: $159.21
-65%$159.21
$55.72Liebert 123273P1S Contactor
The Liebert 123273P1S Contactor is a precision-engineered three-pole magnetic contactor designed for high-cycle applications within critical infrastructure cooling systems. Rated for 30 Amps FLA with a 24V AC coil secondary, this component is a drop-in replacement for failed contactors in Liebert Challenger, Deluxe System/3, and DataMate precision air conditioning units. The unit features built-in auxiliary contacts (NO/NC), allowing for immediate feedback loops to the system logic controller for status monitoring or interlocking. Engineered for inductive loads, its heavy-duty silver cadmium oxide contacts resist welding and pitting, ensuring long-term conductivity even under the high-inrush current demands of scroll compressors and blower motors. For technicians performing preventative maintenance or emergency repairs, the compact frame and standard HVAC contactor wiring layout facilitate a fast installation, maintaining the strict uptime requirements of data center environments.
Technical Specifications and Benefits:- 3-Pole Power Configuration: Designed for 208/230V or 460V three-phase motor loads common in Liebert CRAC units.
- 30 Amp Rated Load: Built to handle definite purpose inductive loads with high reliability.
- Integrated Auxiliary Switches: Includes one Normally Open (NO) and one Normally Closed (NC) set of dry contacts for signal integration.
- 24VAC Control Circuit: Interfaces directly with standard HVAC control transformers and circuit boards.
- DIN Rail or Screw Mounting: Flexible mounting options for standard Liebert electrical control cabinets.
What typically causes a contactor failure in a Liebert unit?
Failure is often due to pitted contacts from high-cycle switching or a burnt-out 24V coil. If the 123273P1S chatter is audible, check the control voltage under load to ensure the transformer provides sufficient VA.
Can I use this to replace a single-pole or two-pole contactor?
While a 3-pole contactor can technically interrupt fewer phases, it is specifically designed for 3-phase machinery. Always match the FLA (Full Load Amps) and coil voltage to the original equipment manufacturer (OEM) specifications to avoid premature failure.
How do I wire the auxiliary contacts?
The auxiliary terminals are side-mounted. The NO contact is typically used for "Run" confirmation to the microprocessor, while the NC contact can be used for lockout or alarm circuits when the contactor is de-energized.
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 Liebert 123273P1S Contactor is a precision-engineered three-pole magnetic contactor designed for high-cycle applications within critical infrastructure cooling systems. Rated for 30 Amps FLA with a 24V AC coil secondary, this component is a drop-in replacement for failed contactors in Liebert Challenger, Deluxe System/3, and DataMate precision air conditioning units. The unit features built-in auxiliary contacts (NO/NC), allowing for immediate feedback loops to the system logic controller for status monitoring or interlocking. Engineered for inductive loads, its heavy-duty silver cadmium oxide contacts resist welding and pitting, ensuring long-term conductivity even under the high-inrush current demands of scroll compressors and blower motors. For technicians performing preventative maintenance or emergency repairs, the compact frame and standard HVAC contactor wiring layout facilitate a fast installation, maintaining the strict uptime requirements of data center environments.
Technical Specifications and Benefits:- 3-Pole Power Configuration: Designed for 208/230V or 460V three-phase motor loads common in Liebert CRAC units.
- 30 Amp Rated Load: Built to handle definite purpose inductive loads with high reliability.
- Integrated Auxiliary Switches: Includes one Normally Open (NO) and one Normally Closed (NC) set of dry contacts for signal integration.
- 24VAC Control Circuit: Interfaces directly with standard HVAC control transformers and circuit boards.
- DIN Rail or Screw Mounting: Flexible mounting options for standard Liebert electrical control cabinets.
What typically causes a contactor failure in a Liebert unit?
Failure is often due to pitted contacts from high-cycle switching or a burnt-out 24V coil. If the 123273P1S chatter is audible, check the control voltage under load to ensure the transformer provides sufficient VA.
Can I use this to replace a single-pole or two-pole contactor?
While a 3-pole contactor can technically interrupt fewer phases, it is specifically designed for 3-phase machinery. Always match the FLA (Full Load Amps) and coil voltage to the original equipment manufacturer (OEM) specifications to avoid premature failure.
How do I wire the auxiliary contacts?
The auxiliary terminals are side-mounted. The NO contact is typically used for "Run" confirmation to the microprocessor, while the NC contact can be used for lockout or alarm circuits when the contactor is de-energized.
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.
