Balmar 621 Series Alternators Single Foot 70A 100A 120A 150A
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$776.00
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$776.00
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621-SERIES
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Balmar 621 Series alternators are small-case, high-output single foot units in 70A, 100A, 120A and 150A versions. They fit 1-inch Motorola-style and 2-inch Delco-style spindle mounts. They are for boat owners making a modest charging upgrade on a single foot engine.
621 Series Single Foot Alternators
621 Series models feature a single-foot (spindle) mount. These alternators include a 1" mounting foot for Motorola-style engine applications, and a bushed 1" spacer, which allows the 621-Series to be installed on engines requiring a 2" (Delco-style) single foot mount.
- Balmar’s Top Selling Alternator Line
- 70A, 100A, 120A and 150A Versions
- Patented Smart Ready® Technology
- Dual Fan Cooling
- High Airflow Frame
- Maximum RPM: 12,000
- USCG Title 33, ISO, SAE and CE Compliant
- Ideal for Modest Charging Upgrades
Specifications
- Mount: 1 to 2 in single foot spindle
- Part numbers: 621-70-XX, 621-100-XX, 621-120-XX, 621-150-XX, where XX is SV (single vee), DV (dual vee), K6 or J10 (serpentine) pulley
- Power take-off: 2.8 HP at 70A, 4.0 HP at 100A, 4.8 HP at 120A, 5.2 HP at 150A
- Regulation: internal Smart Ready fixed voltage (14.1V on 12V systems) or external P-type with ARS-5 or Max Charge regulator
- Cooling: dual internal fans
- Grounding: dedicated terminal, case isolated
- Low RPM cut-in: 1,320 rpm
Questions & Answers
Will this alternator fit a 2-inch single foot mount?
Yes. It includes a 1-inch foot for Motorola-style engines and a bushed 1-inch spacer for engines requiring a 2-inch Delco-style foot.
Do I need an external regulator?
Not always. With small battery loads and frequent engine running, the internal Smart Ready regulator may be enough. For larger deep-cycle banks or less frequent engine use, as on most sailboats, Balmar recommends adding an ARS-5 or Max Charge regulator.
Which amperage should I choose?
Match it to your battery bank. Balmar gives the example that an AGM bank can accept a 40% charge load, so a 300Ah AGM bank can accept 120A.
Balmar 6-Series Alternators Data Sheet
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Balmar 621 Series Alternators |
