S/V Constance, Alberg 30 #262 -- Electrical

Factory Wiring Diagram

See Also

• Navigation Lights
• Boat Battery Maintenance
• Don's Bulbs for cross-reference of bulbs. Example: 10W 12V for new style Need entry for AquaSignal 25 , For example
• Engine Instruments Wiring aboard Constance
• Strategies for Monitoring DC Current
• Analog DC Ammeter Installation
• James Baldwin video on re-wiring a Triton.
• BlueSea BelowDeck Items and Options
  • BelowDeck 12V Socket and Dual USB Charger $ 12v socket, 2A dual USB
  • 4356 $100 12v socket, 2A dual USB, OLED voltmeter
  • 4354 $ 20 two socket blank
  • 4357 $ 25 three socket blank
  • 1011 $ 12 12v socket
  • 1016 $ 25 2A dual USB
  • 1045 $ 34 5A dual USB
  • 1733 $ 37 OLED voltmeter
  • 1732 $ 80 OLED ammeter with 100A shunt (9230 $46)
• Blue Sea 8253 $100 DC ammeter -100 - 0 - 100A with 100A shunt (9230 $46) 2-5/8" wide x 2-3/8" tall

Possible Items

• Towed generator WP 200 WG from HamiltonFerris reviewed in Practical Sailor 15 Feb 2003

2020 Re-wiring

• 2020-06-09 Continue Re-wiring.
• 2020-06-05 Begin Re-wiring.

24 Hour Circuit

• Fed from "Battery' side of Blue Sea Systems m Series Mini On-Off Battery Switch with Key (6005) auxillary switch (detailed below).
• Rule LoPro900S .
• Depvko 36W Dual USB Outlet Waterproof with Voltmeter replaced BelowDeck 12V Socket and Dual USB Charger on 2021-06-08.

Alternator

• Output Current: 2,5000rpm at alternator is 1,100rpm at crankshaft based upon 5-1/4" diameter crankshaft pully and 2-7/8" diameter alternator pulley measured outside of flange to outside of flange
• Output Voltage: 13.8V measured on 2018-08-23 using the newly installed LiDiVi Dual USB Charger and Voltmeter .
• 35A at 2,000rpm/1,100rpm, 47A at 3,000rpm/1,650rpm, 52A at 4,000rpm/2,200rpm, and 53A at 5,000rpm/2,750rpm.
• "BAT" terminal (insulator covered) single heavier gauge wire: Guest Battery Selector Switch check this
• "BAT" terminal (insulator covered) red 2AWG cable to fore #1 Start battery positive terminal check this
• Negative terminals (insulator covered) a heavier and a lighter gauge wire: starter negative, white/red wire to disconnected plug check this
• Updated 2023-07-05.
• Plastic two connection plug: blue, red/black wires
• 1/2" bolt on adjustment arm
• Appears to be a 55A unit based upon comparison with the two alternators listed in the Service Manual Chapter 12 "Electrical System", Section 4 "Alternator, Standard 12V/55A" (LR155-20 Hitachi) and Section 4A "Alternator, Option, 12V/35A" (LR135-105 Hitachi)
• Belt is Mitsubishi REMF-6370
  • Automotive Alternators vs. Deep Cycle Batteries
  • 10 Tips To Buy And Install A Liveaboard’s Alternator
  • Electrical Systems
  • 80A Yanmar Alternator Externally Regulated

Automatic Charging Relay Blue Sea Systems SI-ACR

• Installed 2017-10-30. Updated 2023-07-05.
• "A" terminal: connected to fore #1 Start battery terminal via the Marinco Guest Battery Selector Switch with a Red 6AWG cable, MRBF-1 Terminal Fuse Block and a MRBF Terminal Fuse - 150A fuse. Reinstalled new 2024-03-26.
• "B" terminal: connected to aft #2 House battery terminal via the m Series Mini On-Off Battery Switch with Key (6005) with a Red 6AWG cable, MRBF-1 Terminal Fuse Block and a MRBF Terminal Fuse - 150A fuse.
• Ground terminal: connected to ground bus in the electrical panel with yellow 14AWG wire.
• Start Isolation terminal: not connected at this time.
• LED terminal: not connected at this time.
• Supports high-output alternators up to 120 Amperes
• Operation:
  • Alternator charges fore #1 Start battery directly via 6AWG red cable. SI-ACR closes immediately and charges for battery as well via 6AWG red cables connected to the Guest battery switch.
  • Charger charges fore #1 Start battery directly via 10AWG(?) black wire. SI-ACR closes after about 2 minutes, as advertized, and charges for battery as well via 6AWG red cables connected to the Guest battery switch.
  • At all other times the batteries are isolated from each other.

Batteries

• Battery Maintenance Activities
• Forward (#1, Starting) Precision Maintenance Free DC31-HD group size 31 885 CCA, 1100 MCA, 225 RC, 110 AH, 13"L x 7.75"W x 9.5"H. 59lbs. -- Installed 2019-04-04. Reinstalled new 2024-03-26.
  • Forward Start #1 Start battery positive terminal connections:
    • MRBF-1 Terminal Fuse Block with a MRBF Terminal Fuse - 150A fuse.
    • Guest Battery Selector Switch "Battery 1" terminal via a Red 2AWG cable,
    • Guest Battery Selector Switch Alternator "BAT" terminal via red 6AWG cable
  • Forward #1 Start battery negative terminal connections:
    • Aft #2 House battery negative terminal
• Aft (#2, House) Precision Maintenance Free DC31-HD group size 31 885 CCA, 1100 MCA, 225 RC, 110 AH, 13"L x 7.75"W x 9.5"H. 59lbs. -- Installed 2020-06-17.
  • Aft #2 House battery positive terminal connections:
    • MRBF-1 Terminal Fuse Block with a MRBF Terminal Fuse - 100A fuse.
    • Guest Battery Selector Switch "Battery 2" terminal via a Black 4AWG cable and
    • ABC123 15 amp battery charger
  • Aft #2 House battery negative terminal connections:
    • Forward #1 Start battery negative terminal,
    • Engine block,
    • DC Ciruit Breaker Panel 82204 DC panel ground, and
    • ABC123 15 amp battery charger .
• Verified 2024-3-26. Updated 2023-07-05.
• See Battery Case Sizes

Battery Charger

• Newmar ABC123 15 amp battery charger battery charger connected to aft battery only via two 10AWG(?) black wires.
• Updated 2023-07-05.

Battery Monitor

• Marine How To Installing a Battery Monitor
• Marine How To Keeping Your Battery Monitor More Accurate
• Practical Sailor 2016 October issue Monitoring Your Marine Battery Bank
• Practical Sailor 2016 October issue Testing Marine Battery Monitors
• Inexpensive monitor shown in James Baldwin video.

Electrical Panel

• Paneltronics DC Ciruit Breaker Panel 82204
• The labels are NOT illuminated.

1.   5A, "Anchor": SeaDog 400010-1 LED fixed mount all around light
2.   5A, "Deck": ML-2 LED Combination Deck / Steaming Light
3. 10A, "Depth Sounder": ( ST 40 Depth fuse required: 3A), ST 40 Speed knotmeter (fuse required: 3A), ST 60+ Wind wind meter (fuse required: 3A) (?)
4. 10A, "Steam": ML-2 LED Combination Deck / Steaming Light
5. 20A, "Navigation Lights": ( AquaSignal 25 Bicolor bow 0.8A, AquaSignal 25 Stern stern 0.8A)
6. 15A, "Blower": Jabsco Model 35115-0020 engine room exhaust fan 105 CFM 12V 4.4A
7. 10A, "GPS": GPSMAP 192C with inline cylindrical glass fuse holder and 2A/250V fuse, 312 series.
   • Brown (NMEA 0183 in com 1), blue (NMEA 0183 out com 1), white (NMEA 0183 in com 2), green (NMEA 0183 out com 2), and yellow (alarm low) wires from GPS cut off and unterminated (fuse required: 1.5A)
8. 10A, "VHF": VHF 600 (fuse required: 6A)

Fuses

• AGC/3AG 1.5A -- Missing? -- GPSMAP 192C
• 3A -- Missing? -- ST 40 Depth , 5A for the string, if SeaTalk connected
• 3A -- Missing? -- ST 40 Speed , 5A for the string, if SeaTalk connected
• 3A -- Missing? -- ST 60+ Wind , 5A for the string, if SeaTalk connected
• 5A -- Missing? -- Autohelm 2000
• AGC 6A 250V fast blow installed in fuseholder hidden inside the split loom containing power and antenna wires -- VHF 600
• 7.5A Rule LoPro900S located in Rule Rule 41 , 3-way switch next to electrical panel.

Starter

• postive terminal connections: Guest Battery Selector Switch "Both" terminal with a 4AWG Black cable.
• negative terminal connections: alternator negative (insulator covered), braided wire strap to engine VERIFY

Starter Solenoid

• Updated 2023-07-05.
• postive terminal connections: Guest Battery Selector Switch "Both" terminal with a 4AWG Black cable and a wire to the input terminal of the engine ignition switch.
• negative terminal connections: ??

Switch, main

• "Battery 1" terminal connects via a Red 4AWG cable to the Fore #1 Start battery and to "A" terminal of SI-ACR via a Red 6AWG cable.
• "Battery 2" terminal connects via a Red 6AWG cable to the Aft #2 House battery, "Battery" terminal of the m Series Mini On-Off Battery Switch with Key (6005) via a 4AWG Black cable.
• "Common" terminal connects via a a Black 4AWG cable to the starter.
• The switch does not have terminals for automatic field disconnect.

Switch, auxillary

• 24 Hour Circuit connects to "Battery" terminal
• "Battery" terminal connects via a 4AWG Black cable to "Battery 2" of Guest Battery Selector Switch and via a 6AWG Red cable to the "B" terminal of the SI-ACR .
• "Common" terminal connects via a Red ?AWG to DC+ bus of the DC Ciruit Breaker Panel 82204 .

Photos

After 2021 Dual USB Charger / Voltmeter Installation

After 2020 Re-wiring

As Found at Purchase May 2015

Obsolete Photos