BEP 701-PM 275A Battery Master Isolator Switch 48V DC
8-90035
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BEP 701-PM Battery Master Switch
On/Off Isolation | 275A Continuous | Panel or Surface Mount
The BEP 701-PM Contour battery master switch provides high-current manual ON/OFF isolation for a single battery circuit. Its modular Contour Lock body can operate alone or interlock with compatible BEP modules, while tin-plated copper studs and an insulating rear cover support marine installation.
Key Features
- ✔ ON/OFF battery isolation up to 48V DC
- ✔ 275A continuous current rating
- ✔ Removable knob only at 45° anticlockwise past OFF
- ✔ Ignition-protected construction
- ✔ Recessed or surface mounting
Technical Specs
| Model | 701-PM / 701 panel-mount family |
| Maximum voltage | 48V DC |
| Continuous current | 275A |
| Intermittent current | 455A for 5 minutes |
| Cranking current | 1250A for 10 seconds |
| Operation | ON / OFF |
| Studs | 2 × 3/8in / 10mm |
| Dimensions | 69 × 69 × 75mm |
| Recommended cable to meet rating | Up to 1/0 AWG / 50mm² per BEP table |
| Contacts | Tin-plated copper studs and nuts |
Compatibility / Fitment Guide
| Check | Required specification | Decision |
|---|---|---|
| Circuit topology | Single battery or bank requiring simple ON/OFF isolation | This is not a 1-2-Both selector and cannot select between two banks. |
| Voltage | Battery system no higher than 48V DC | Do not use on AC circuits. |
| Continuous load | ≤275A with correctly sized cable and ventilation | Starting and transient ratings cannot be used as continuous limits. |
| Cranking duty | ≤1250A for no more than 10 seconds | Confirm actual starter current and cable voltage drop. |
| Mounting | 69mm-square module; 75mm depth plus heavy-cable bend radius | May be recess or surface mounted; insulate and secure rear terminals. |
Not suitable for: AC mains, battery-bank selection, automatic charge combining, loads above the stated duty ratings or installations using undersized cable/lugs.
Part Number Cross Reference
| Manufacturer | BEP Marine |
| Model | 701-PM / 701 |
| 4Boats / Aquafax SKU | 8-90035 |
| Different selector model | 701S = 1-2-Both-Off; not interchangeable in function |
| Heavy-duty alternative | 720 family; physically and electrically different |
Frequently Asked Questions
Can it select between two batteries?
No. This model is a simple ON/OFF master switch.
Can the knob be removed while ON?
No. It is removable only at the dedicated 45° anticlockwise position past OFF.
Is 1250A a continuous rating?
No. It is a ten-second cranking rating.
Can it be surface mounted?
Yes. BEP specifies both recessed and surface mounting.
Before ordering: Check voltage, continuous and cranking current, cable cross-section, lug size, rear clearance and isolation requirements.
For the products under £150 the shipping is £6.99.
Free delivery for most items over £150.
