$101.35
Regular price
$101.35
SOLD OUT
Samlex Battery Guard 40A BGW-40
Samlex Battery Guard 40A BGW-40
Out Of Stock
MPN No: BGW-40
Regular price
$101.35
Ships from U.S. Warehouse
Trusted by Thousands
Expert U.S. Support
We offer multiple secure payment options for your convenience
We offer multiple secure payment options for your convenience
Data Sheet
Regular price
$101.35
Samlex Battery Guard 40A BGW-40
MPN No:
BGW-40
Contact us for Delivery Date
Sold out
Samlex Battery Guard 40A BGW-40
The Samlex BGW-40 Battery Guard is a compact, waterproof battery protection device designed to prevent excessive battery discharge and protect sensitive DC loads. Rated for 40 amps continuous current, the BGW-40 automatically disconnects loads during low-voltage, overvoltage, overcurrent, or over-temperature events—helping extend battery life and safeguard connected equipment in mobile, marine, RV, and off-grid systems.
Key Technology
-
Automatic Battery Protection
Prevents deep discharge and protects connected components from damaging voltage conditions. -
12V / 24V Auto-Detect Operation
Automatically detects system voltage and operates across 8–19V (12V) and 20–35V (24V) ranges. -
Programmable Voltage Thresholds
Provides 10 selectable connect / disconnect voltage settings via jumpers for precise control. -
IP66 Waterproof Enclosure
Rugged rubberized polyurethane housing enables reliable operation in harsh and outdoor environments.
Best Uses
-
RV & Camper Electrical Systems
Protects house batteries from excessive discharge during extended off-grid use. -
Marine Electrical Systems
Ideal for boats requiring compact, waterproof battery protection. -
Off-Grid & Solar DC Loads
Safeguards batteries powering DC loads, controllers, and small inverters. -
Automotive & Auxiliary Power
Prevents battery drain caused by auxiliary electronics and accessories.
Protection & Control Features
-
Low-voltage shutdown protection
-
Overvoltage protection (faulty alternators or chargers)
-
Overcurrent and temperature protection
-
Remote ON/OFF switch input
-
Status / alarm output for external buzzer, lamp, or relay
Warranty & Compliance
-
Manufacturer Warranty: 2-year limited warranty
-
Certifications: CE, UKCA, RoHS
-
EMC Compliance: EN 61000-6-3 (Emissions), EN 61000-6-2 (Immunity)
Product Specifications
| Specification | Details |
|---|---|
| Model | BGW-40 |
| Product Type | Battery voltage protector / disconnect |
| Continuous Load Current | 40 A (shutdown at ~45 A) |
| Peak Current | 300 A (0.7 sec) |
| Operating Voltage | Auto-detect 12V / 24V DC |
| Voltage Thresholds | 10 programmable connect / disconnect settings |
| Voltage Drop | 40 mV @ 40 A |
| Current Consumption | 3.2 mA |
| Enclosure Rating | IP66 (Waterproof) |
| Dimensions | 2.44 × 2.83 × 1.26 in |
| Weight | 0.4 lbs |
| Warranty | 2 years |
About Samlex:
Samlex is a global manufacturer of power conversion products founded in 1991 and based in Burnaby, Canada. They make inverters, battery chargers, converters, power supplies, solar charge controllers and related accessories for mobile, industrial, off‑grid, RV, marine and telecom uses. Samlex products are known for reliability, quality and broad international distribution.
Compact, Waterproof Protection for Essential DC Loads
The Samlex BGW-40 offers reliable battery protection in a small, rugged package—ideal for safeguarding 12V and 24V systems where space is limited but protection is critical.
Why Buy From US Solar Supplier
US Solar Supplier is an American-founded company based in Kentucky dedicated to offering top-quality solar components from trusted manufacturers. We provide competitive pricing, dependable inventory, and products backed by warranties you can trust.
Our inventory is updated daily with the latest solar technologies, and our experienced team is ready to assist with product selection, system design, and installation guidance.
Need Assistance?
Have questions before you order? Call 1-800-230-7004 to speak with our knowledgeable support team. We’re here to help with product details, compatibility questions, or purchasing support.
