Trying to match a BEP battery switch removed from an RV, camper or boat? Start with the part number, then compare the knob positions and the rear terminals. BEP 700, 701, 701S and 720 serve related purposes, but their mounting sizes and switching functions are different.
Identify your switch before choosing a replacement
Illustrated terminal-count guide
These simple shapes explain how to distinguish two-stud ON/OFF units from the three-stud selector. They are identification diagrams, not terminal-location or wiring diagrams.
700, 701 and 720
Two main terminals. When the knob is ON, the internal switch joins them; OFF opens the contact.
Exact size and terminal-thread diameter depend on model.701S selector
Three main terminals. Position 1 connects battery 1 to common, position 2 connects battery 2, and BOTH connects both.
Selector switching cannot substitute for a two-stud master disconnect without redesigning the circuit.How the four BEP part numbers differ
| Model | Knob operation | Main terminals | Housing L × W × H | Continuous current |
|---|---|---|---|---|
| 700 | ON/OFF | Two 3/8-inch studs | 68 × 68 × 110 mm | 275A |
| 701 | ON/OFF | Two 3/8-inch studs | 69 × 69 × 75 mm | 275A |
| 701S | OFF / 1 / 2 / BOTH | Three 5/16-inch studs | 69 × 69 × 75 mm | 200A |
| 720 | ON/OFF | Two 1/2-inch studs | 102 × 102 × 90 mm | 600A |
The 701 and 701S share approximately the same exterior dimensions, but not the same electrical contacts. The 700 has a taller housing, while the 720 has a substantially larger footprint and higher current rating. Do not identify a unit by colour alone.
For a genuine replacement match, confirm the manufacturer's complete part number, switch positions, terminal arrangement, electrical rating and mounting opening. A matching overall size does not guarantee compatible cables or connections.
Compare the corresponding BEP product listings
Use the product photographs to recognize housings and knob arrangements, then open a listing for specific details and availability. These catalog entries are not automatically used items.
Original specifications and mounting drawings
Detailed dimensional drawings and rated current values are available in the BEP battery management catalog. Verify the rear terminal arrangement from the actual switch and the manufacturer's installation instructions before reconnecting electrical power.