Siemens 3TY7503-0AK6 Ac Operated Replacement Coil

Product Description

The SIEMENS 3TY7503-0AK6 is an AC operated replacement coil designed for use with compatible Siemens contactor assemblies. The coil generates the electromagnetic field required to pull in and hold the contactor's armature, enabling or interrupting power to a connected load. It is a direct replacement component intended for field service when the original coil fails due to burnout, mechanical damage, or voltage mismatch. Licensed electricians and HVAC technicians typically handle this replacement as part of contactor servicing on motor control, HVAC, and industrial power distribution equipment.

This coil is suited for AC voltage applications in both commercial and light industrial settings. It is commonly installed in motor control centers, HVAC rooftop units, air handling units, chillers, and similar equipment that relies on Siemens 3TY-series contactors. When the existing coil shows signs of overheating, insulation breakdown, or failure to energize, this part provides a factory-compatible swap without replacing the full contactor assembly.

Key Features

• AC operated coil for electromagnetic contactor actuation
• Drop-in replacement design compatible with the corresponding Siemens contactor frame size
• Compact form factor at 4.921 x 3.898 x 1.693 inches for installation in tight enclosures
• Lightweight construction at 0.611 pounds, easing handling during overhead or panel work
• Restores full contactor function without requiring full assembly replacement

Compatibility

Designed as an OEM-style replacement coil for Siemens 3TY-series contactors requiring an AC operated coil in the corresponding frame size. Verify coil voltage rating and contactor model number against the nameplate before ordering.

Installation Notes

Coil replacement should be performed by a qualified electrician or HVAC technician in accordance with NEC guidelines and applicable local codes. Disconnect and lock out all power to the contactor before removing the enclosure cover or handling any components. Remove the existing coil by releasing the retaining clips or fasteners per the contactor service documentation, then seat the new coil and confirm secure retention before re-energizing. Do not energize the coil outside of the contactor assembly.

Technical Specifications

• Coil Operation: AC Operated
• Length: 4.921 inches
• Width: 3.898 inches
• Height: 1.693 inches
• Weight: 0.611 pounds
• UPC: 75455420667

Standard Information

• Brand: SIEMENS
• Manufacturer Part Number: 3TY7503-0AK6