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Definite Purpose Contactor · 40A 2-Pole 24 VAC Coil Open Type - Eaton C25BNB240T
SKU: EAT-C25BNB240T
40A 2-pole definite purpose contactor with a 24 VAC coil for HVAC equipment, compressors, condensers and other control applications. Open type compact design with box lug terminals and a 600 VAC rating; verify coil voltage, pole count and load before ordering.
What this product is for
The Eaton C25BNB240T is a compact definite purpose contactor used to switch line voltage loads from a 24 VAC control circuit. It is commonly selected for HVAC condensing units, compressors, fan motors and other equipment where a 2-pole open contactor is required.
Use for
Use for replacing or specifying a 40A 2-pole contactor with a 24 VAC coil in control panels, rooftop units, condensers and similar equipment. Typical applications include motor and resistive load switching where the equipment nameplate and control circuit match this contactor's ratings.
Avoid for
Avoid for applications requiring an enclosed contactor, different coil voltage, different pole configuration, or reversing duty. Do not substitute based only on frame size; confirm ampacity, coil voltage, terminal style and equipment approval requirements.
Best for
Best for service replacements and OEM-style maintenance where a compact 2-pole definite purpose contactor with 24 VAC control is needed. Electricians and HVAC technicians typically look for the coil voltage first, then pole count, then current rating when matching a replacement.
Installed in
Typically installed in HVAC condensing units, air handlers, refrigeration equipment, pump panels and other machinery using a low-voltage control circuit. This is an open style device intended for installation inside suitable equipment enclosures or control compartments.
Why this product exists
This contactor allows a low-voltage 24 VAC control signal to switch higher voltage power circuits safely within the equipment design. In trade use, 24 VAC coils are common in HVAC controls because they integrate with standard thermostats and control transformers.
Compared with similar products
Compared with general purpose contactors, a definite purpose contactor is typically more compact and application-specific for HVAC and equipment control. Compared with a 1-pole contactor, this 2-pole design disconnects both ungrounded conductors in many 240 VAC applications, depending on equipment design. Actual suitability depends on the original equipment specification and local electrical code.
Specifications
- Manufacturer: Eaton
- Manufacturer part number: C25BNB240T
- Product family: C25 definite purpose contactor
- Type: Compact definite purpose contactor
- Current rating: 40 A
- Poles: 2-pole
- Coil voltage: 24 VAC, 50/60 Hz
- Voltage rating: 600 VAC
- Configuration: Open type, non-reversing
- Terminals: Box lug terminals
- Mounting: Metal mounting plate / panel mount style
- Typical application voltage: Often used on 208 to 240 VAC equipment circuits where the control circuit is 24 VAC
Typical buying guidance only: on HVAC equipment, matching the 24 VAC coil and pole configuration is usually as important as matching the amp rating. Actual performance depends on equipment design, load type, enclosure, and local electrical code.
- MountingMetal mounting plate / panel mount style
- Product FamilyC25 definite purpose contactor
- Current Rating40 A
- Poles2-pole
- Coil Voltage24 VAC, 50/60 Hz
- Voltage600 VAC
- ConfigurationOpen type, non-reversing
- TerminalsBox lug terminals
- BrandsEaton
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