Eaton Vickers 300AA00081A 12VDC Solenoid Coil: Complete Technical Guide and Applications
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What is the Eaton 300AA00081A coil?
The 300AA00081A is an Eaton Integrated Hydraulics solenoid coil for mobile directional valves: a cylindrical zinc-plated can that slides over the valve's armature tube, rated 12 V DC, with a moulded 2-blade connector and ground tab on top, made at Eaton's hydraulics division in Shanghai (date code 2234, spec code MCSCJ012DG000010). The yellow band on the shell warns that the retaining nut goes on at 4-6 lb-ft (5-8 Nm) — no more. One unit, new, one-year warranty as recorded. All 5 photos and 1 video below show the exact unit covered by this record.
Part details
| Field | Value |
|---|---|
| Part number | 300AA00081A |
| Brand / division | EATON, Integrated Hydraulics (Eaton Corp. Hydraulics Div., Shanghai, China) |
| Type | Cylindrical solenoid coil for mobile hydraulic valves |
| Voltage | 12 V DC |
| Spec code | MCSCJ012DG000010 |
| Date code | 2234 |
| Connection | Moulded 2-blade connector with ground tab (Deutsch-style blades) |
| Shell | Zinc-plated steel can |
| Warning label | Retaining nut torque max 4-6 lb-ft (5-8 Nm) |
| Quantity | 1, new |
| Warranty | 1 year, as recorded at intake |
| Shipping weight | 0.5 kg |
All values are read from the coil label and the warning band in the photo set.
The coil that turns a valve into a valve
On a mobile directional valve the coil is the part that fails first — heat, moisture and vibration live there — and Eaton's 300AA series is built to be swapped in minutes: slide the can over the tube, run the retaining nut down to 5-8 Nm, plug the lead into the moulded connector. The 12 V DC rating matches vehicle electrical systems, which is why this coil serves truck-mounted and machine-mounted hydraulics rather than fixed plant. The ground tab on the connector block is worth respecting: on a wet-armature valve the coil shell sits in the oil flow, and the ground path keeps fault currents out of the machine chassis. The label carries Eaton's Integrated Hydraulics division mark and the Shanghai plant line, with spec code MCSCJ012DG000010 tying this 12 V winding to its exact factory build. KOEED stocks Eaton/Vickers coils in several frame styles — this unit's product page is live, and the 868982 square-shell coil is in the same family of records.
Photos and video
All images below are original KOEED warehouse photos. Click any photo to view it full size.
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