Sea-Dog 415110-1
For marine wing-nut battery terminals using smaller cable sizes; red and black identify polarity.
Sea-Dog Battery Terminal Covers, Cable Sizes & Wing-Nut Set
Sea-Dog battery-terminal covers help shield exposed marine battery connections from accidental contact and corrosion. There are different cable entry sizes for wing-nut terminal covers, plus separate PVC caps for other electrical studs. The 415210-1 is actual positive/negative terminal hardware, not an insulating cap. Check the connection before selecting a part.
Marine battery terminal covers compared
Check cable gauge, connector type and shape. The manufacturer dimensions A, B and D refer to locations on the original technical drawings, not automatically the battery-post diameter.
| Exact MPN | Component | Cable size | Manufacturer dimensions |
|---|---|---|---|
| 415110-1 | PVC terminal covers | 4, 2 and 1 AWG | A ½ in; B 1⅝ in |
| 415115-1 | PVC terminal covers | 1/0 and 2/0 AWG | A ⅝ in; B 1⅝ in |
| 415194-1 | Insulating stud cap | 8 to 2 AWG | A 2 3/16 in; D 5/16 in |
| 415196-1 | Insulating stud cap | 2 AWG to 2/0 AWG | A 3 1/16 in; D 9/16 in |
| 415210-1 | Die-cast lead wing-nut terminals | Not a cable cover | Positive/negative battery post sizes differ |
Different components: 415110-1 and 415115-1 are red/black wing-nut terminal-cover pairs in two cable size ranges; 415194-1 and 415196-1 are individual red stud-style insulating caps. 415210-1 supplies actual positive/negative wing-nut terminals in die-cast lead. Do not confuse the catalog case pack with the quantity sold in an individual listing.
What to check before replacing a terminal cover
- Disconnect the battery system following the equipment manufacturer's safe isolation procedure before handling terminals.
- Determine whether the original connection uses a marine wing-nut battery terminal or a standalone high-current stud on another component.
- Read the wire gauge and compare it with the intended cover entry: AWG 4/2/1, 1/0–2/0, AWG 8–2 or AWG 2–2/0.
- Check the stud and post geometry against Sea-Dog's original A–D dimension drawing; a similar-looking red cap can be a different size.
- Check polarity and mounting clearance, and ensure the cover stays in place without straining the cable or preventing a secure connection.
For manufacturer measurements, see the wing-nut battery terminal-cover chart, stud-cap chart and terminal-set drawing.
Find the matching Sea-Dog components
These products are purchased online and ship from supplier warehouses; in-person viewing and pickup are unavailable.
Sea-Dog 415115-1
Larger cable-entry version of the wing-nut terminal cover; not the same opening as 415110-1.
Sea-Dog 415194-1
Insulates exposed connections on suitable electrical studs, such as equipment terminals and distribution points.
Sea-Dog 415196-1
Larger PVC insulating cap for compatible high-amperage stud connections.
Sea-Dog 415210-1
The actual positive/negative terminal set that converts compatible battery posts to stud connections; it is not a pair of covers.
Related marine electrical parts
For correctly rated circuit protection, see our Sea-Dog inline AGC fuse-holder guide. Insulating covers protect against accidental contact; they do not replace a properly sized fuse or circuit breaker.
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