Power source
SmartPlug BM30NT 30A 125V Inlet connections
Review the SmartPlug BM30NT 30A 125V Inlet catalog ratings, AC connection points and installation notes, then add the part to your Crimp diagram.
- Nominal voltage
- 120 V
- Rated output
- 30 A
Connection overview
BM30NT 30A connections.
See how this component fits into a system. Use the manufacturer’s installation instructions for the complete connections.
Installation notes
Before you install.
Open a question for model-specific guidance and sources.
Reviewed against manufacturer family documentation (rev. SmartPlug Marine Catalog 2025; BM30 non-metallic family installation sheet 01/26/2017), checked 2026-10-01. Exact variant details still require confirmation. Manufacturer documentation →
A 125 V AC inlet at the boat
BM30NT is the stainless 30 A / 125 V SmartPlug boat-side inlet identified in the current marine catalog. In a nominal 120 V shore installation, it accepts the matching SmartPlug boat-end connector. The marina end of the cord must separately match the pedestal. This inlet does not turn AC into 12 V DC; a charger or other converter is a separate downstream component.
Keep line, neutral and protective earth separate
The three canvas connections represent AC line, neutral and protective earth. Their 30 A limits come from the product rating. They must not be wired as a positive/negative DC pair, and protective earth is not a normal load-current return. The symbol marks the shore entry point rather than a complete shore-power safety system.
Plan the inlet-to-main-panel cable, disconnect/overcurrent protection and ground-fault protection as an AC installation. The 30 A inlet rating is an upper limit, not a guaranteed available load or permission to up-rate an existing cable. Confirm source voltage, correct conductor identity and the vessel's complete grounding arrangement before energizing. Do not create a neutral-to-earth link at the inlet as an improvised substitute for an established system design.
Prepare a sound mechanical connection
De-energize and disconnect the shore cord before installation. Inspect the existing conductors for heat damage or corrosion rather than transferring damaged ends into a new inlet. Use the correct mounting gasket, support the cable and provide the specified rear enclosure/strain relief. Check plug fit and full engagement of the locking features before restoring power.
The recovered installation sheet is for the non-metallic BM30 family, while this component is stainless BM30NT. It shows color-coded hot, neutral and ground connections, but is not exact-part evidence for BM30NT stripping length, terminal torque, conductor acceptance or rear hardware. Those details must come from the instructions supplied with this exact inlet. Verification therefore remains family-only for installation mechanics; no borrowed torque has been published as an NT specification.
Commission the complete shore circuit
With the completed installation inspected, verify polarity and the operation of the installed protective devices using their instructions. Connect and disconnect with the shore supply turned off so the inlet is not being used as a load-breaking switch. Ensure the boat-side connector fully locks and the cover engages as intended.
Investigate warmth, discoloration, arcing marks, damaged seals or loose connections promptly. A larger breaker does not repair a resistive contact. Keep contacts clean and dry and support the shore cord so its weight and movement are not carried by the electrical connection alone.
Documents and remaining gap
Official 2025 marine catalog, p. 12, confirms BM30NT and 30 A / 125 V. Manufacturer BM30 non-metallic installation sheet, distributor mirror is retained as family evidence only. The exact NT terminal procedure remains an explicit gap in the ledger.
Technical reference
Specifications and terminal map.
Check the model, ratings and connection points against your own unit before choosing installation hardware.
Catalog specification
Stainless 30 A / 125 V AC boat-side inlet for nominal 120 V shore service. This is an AC entry point with line, neutral and protective earth; it contains no DC converter or complete shore-power protection system. Use matching SmartPlug boat-side cord end. Installation instructions recovered for the BM30 family are not exact BM30NT torque evidence.
- Nominal voltage
- 120 V
- Rated output
- 30 A
Terminal map
Catalog connection points, current direction and planning limits. Check the manufacturer's pinout and connector ratings before installation.
AC L
neutral · output
AC N
neutral · output
AC PE
ground · bidi
Sources and sizing method
Equipment specifications. Model details, ratings and terminal roles come from the catalog. Check your unit’s label and current manufacturer documentation for its exact revision.
Connection overview. This diagram explains the connection arrangement; it does not calculate cable sizes or protection for the installation. Follow the manufacturer’s complete wiring and protection instructions.
Read how the sizing worksNext step
Plan your installation with BM30NT 30A.
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