48VDC 275A Manual Battery Disconnect Switch
Modelo: 48VDC 275A- Sku: WORLPRO019
- Vendor: WorldSunLight
Specifications
Product Description
The 48VDC 275A Manual Battery Disconnect Switch is a heavy-duty rotary switch designed to isolate, select, or combine battery banks in 12/24/48 V DC systems. It allows immediate power cut-off during maintenance or emergencies and, thanks to its four-position switch (1–2–BOTH–OFF), offers flexible management of two banks: individual use, parallel operation, or total disconnection. Its compact construction and M10 bolt terminals provide a firm, low-resistance connection, ideal for off-grid solar installations, boats, motorhomes, UPS/back-up, and industrial DC systems.
Main Features
- 1–2–BOTH–OFF Selector: operates one bank, the other, both in parallel, or total cut-off.
- 48 VDC max.; operating range 12–48 V for most DC systems.
- 275 A rated and 250 A continuous; starting peak 1250 A.
- M10 power terminals (10 mm screw diameter) for large-section cabling.
- Robust thermoplastic body, ergonomic handle, and base with four mounting holes.
- Compact format: 68×68×76 mm for panel or surface mounting.
Advantages or Benefits
- Safe isolation of the battery bank for service work and prevention of accidental discharges.
- Flexible management of two banks: alternate between 1/2 to extend service life or use BOTH for maximum demand peaks.
- Reduction of voltage drops thanks to M10 terminals and low-resistance path.
- Simple and quick installation; intuitive operation with clear position indication.
- Applicable to lithium (LFP), AGM, GEL, or open lead-acid in vehicles, boats, and off-grid solar systems.
Purpose or Applications
General battery disconnection in off-grid solar kits, campers and motorhomes, marine, forklifts, back-up banks for telecommunications, emergency lighting, or small industrial direct current systems.
Technical Specifications
| Device type | Manual battery disconnect / selector |
| Positions | 1 – 2 – BOTH – OFF |
| Operating voltage | 12–48 V DC |
| Rated current | 275 A |
| Continuous current | 250 A |
| Starting current | up to 1250 A (peak) |
| Terminals | M10 bolts (Ø 10 mm), connection with ring terminal |
| Body material | Durable thermoplastic |
| Dimensions | 68 × 68 × 76 mm |
| Mounting | Surface / panel, 4 fixing points |
Compatibilities
Compatible with 12/24/48 V battery banks (LFP, AGM, GEL, open lead-acid), cable terminals with M10 ring, ANL/Mega type battery fuse holders and fuses (no URL), as well as main switches and DC panel protections. For professional installation, place it on the positive line near the battery and coordinate fuse rating and cable section with the expected current.
The 48VDC 275A Manual Battery Disconnect Switch offers control, safety, and versatility in DC energy management, ensuring reliable disconnection and convenient operation in any electrical autonomy project.
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48VDC 275A Manual Battery Disconnect Switch
