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NEMA motor control contactor · 135 A, 3-pole, non-reversing, Size 4, open enclosure · Eaton CN15NN3A
SKU: EAT-CN15NN3A
NEMA Size 4 motor control contactor for full-voltage non-reversing applications, rated 135 A with 3 power poles and a 120/60 or 110/50 coil. Commonly used for motor starters, pumps, fans, compressors, and other industrial control panels in commercial and industrial installations.
What this product is for
The Eaton CN15NN3A is a NEMA motor control contactor for switching 3-phase motors and other heavy electrical loads in commercial and industrial control systems. It is a full-voltage non-reversing contactor in NEMA Size 4 with an open enclosure design.
Use for
Use for motor starters, pumps, fans, compressors, conveyors, process equipment, and machinery control panels where a 3-pole 135 A NEMA contactor is required. It is suitable where a 120 V 60 Hz or 110 V 50 Hz control coil matches the control circuit.
Avoid for
Avoid for reversing duty, enclosed applications that require a factory enclosure, or installations where the coil voltage does not match the control circuit. Do not use it as a complete starter where overload protection or additional accessories are required unless those components are added separately.
Best for
Best for electricians and panel builders who need a traditional NEMA contactor for rugged motor control circuits, especially where serviceability, established NEMA sizing, and compatibility with industrial control assemblies matter.
Installed in
Typically installed in industrial panels, MCC-related assemblies, machinery cabinets, pump control panels, HVAC equipment panels, and commercial equipment controls. Open-style construction means it is normally mounted inside a suitable enclosure or control assembly.
Why this product exists
This contactor provides a straightforward NEMA-rated switching solution for higher-current motor control circuits. Compared with smaller contactors, NEMA Size 4 is commonly selected where larger motors or heavier-duty control requirements call for a 135 A frame.
Compared with similar products
Compared with IEC contactors, this NEMA contactor follows traditional NEMA sizing and is often chosen for established North American motor control designs. Compared with reversing contactors, this model is for non-reversing duty only. Buyers should confirm coil voltage, enclosure requirements, and any needed auxiliary contacts or overload relays before ordering.
Specifications
- Brand: Eaton
- Manufacturer part number: CN15NN3A
- Product family: Freedom NEMA motor control contactor
- Type: Full-voltage non-reversing contactor
- NEMA size: 4
- Current rating: 135 A
- Poles: 3
- Enclosure: Open
- Coil voltage: 120 V at 60 Hz or 110 V at 50 Hz
- Application: Motor control and heavy-duty load switching
- Typical installation: Inside a control panel or suitable enclosure
Typical buying guidance: confirm the control transformer or control circuit voltage before ordering, and verify overload relay and accessory requirements for the complete assembly. Actual suitability depends on motor load, duty cycle, SCCR of the assembly, and local electrical code.
- Product FamilyFreedom NEMA motor control contactor
- Current Rating135 A
- Poles3
- Coil Voltage120 V at 60 Hz or 110 V at 50 Hz
- ApplicationMotor control and heavy-duty load switching
- EnclosureOpen
- Typical InstallationInside a control panel or suitable enclosure
- BrandsEaton
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