Description
Egis 350A Dual Circuit Battery Switch | Boat Supply Store
Engineered for the rigors of offshore and coastal operations, this battery switch isolates and manages multiple battery banks to prevent discharge and ensure reliable power. It provides ignition protection per SAE J1171 / ISO 8846, critical for gasoline-powered vessels, and operates at up to 48 Vdc on a single circuit. The robust design includes stainless steel hardware and serrated flange lock nuts, ensuring long-term functionality in environments prone to vibration and moisture ingress, ideal for systems powering critical navigation or trolling motor arrays.
Key Features
- Superior Sealing against dust and water intrusion for enhanced longevity.
- Ignition Protected per SAE J1171 / ISO 8846 for safe operation on gasoline-powered vessels.
- Vibration Resistance thanks to serrated flange lock nuts.
- Harsh Environment Design with stainless steel hardware and high-temperature materials.
- Dual Circuit Capability for managing independent battery banks.
- High Ampacity Rating of 350A supports demanding electrical loads.
- Flexible Mounting Options accommodate various installation scenarios.
- 3/8"-16 Studs accept standard ring terminals for secure connections.
Specifications
| Product Specifications | |
|---|---|
| Switch Type | Dual Circuit Battery Switch (Off/On) |
| Maximum Voltage (Single Circuit) | 48 Vdc |
| Maximum Voltage (Dual Circuit) | 32 Vdc |
| Maximum Continuous Amps | 350A |
| Terminal Stud Size | 3/8"-16 |
| Ring Terminal Compatibility | Accepts 3/8" (M10) |
| Terminal Stud Torque | 140 in-lbs (15.8 N-m) |
| Ignition Protection Standard | SAE J1171 / ISO 8846 |
| Mounting Hole Diameter | 3-5/8" |
| Cable Capacity | Up to 4/0 AWG |
| Hardware Material | Stainless Steel |
Who This Is For
Boat owners and marine technicians requiring a dependable dual-circuit battery switch, particularly those operating in challenging marine conditions or vessels requiring ignition protection. It is an essential component for maintaining the integrity of critical electrical systems.
How It Compares
| Feature | Egis 350A Dual Circuit Battery Switch | Competitor |
|---|---|---|
| Max Continuous Amps | 350A | 350A, 250A |
| Max Voltage (Single Circuit) | 48 Vdc | 32V DC, 32V DC |
| Max Voltage (Dual Circuit) | 32 Vdc | 32V DC, 32V DC |
| Ignition Protected | Yes (SAE J1171 / ISO 8846) | Yes, Yes |
| Sealing | Sealed Against Dust & Water Intrusion | Ignition Protected, Ignition Protected |
| Terminal Stud Size | 3/8"-16 | 3/8"-16, 3/8"-16 |
Common Concerns Answered
How does the dual-circuit system work, and why would I need it?
A dual-circuit system allows you to manage two separate battery banks, for example, one for starting and one for house loads. This enables you to isolate your starting battery to ensure you can always crank your engine, while the other bank powers your electronics, lights, and accessories. It significantly enhances operational reliability and battery longevity.
Is this battery switch safe for gasoline-powered boats?
Yes, this Egis E-Series battery switch is ignition protected per SAE J1171 / ISO 8846 standards, making it safe for use on gasoline-powered vessels where ignition sources must be contained to prevent fuel vapor ignition.
What are the implications of not using the specified torque on the terminal studs?
Applying incorrect torque to the terminal studs can lead to poor electrical connections, overheating, and potential failure of the switch or associated wiring. Adhering to the specified 140 in-lbs (15.8 N-m) torque is critical for ensuring a secure, low-resistance connection and optimal performance.
Frequently Asked Questions
What is the maximum voltage this Egis E-Series battery switch can handle?
This Egis E-Series battery switch can handle a maximum voltage of 48 Vdc when used as a single circuit and 32 Vdc when utilized in its dual-circuit configuration.
Is this battery switch ignition protected?
Yes, this battery switch is ignition protected and meets SAE J1171 and ISO 8846 standards, ensuring safe operation in potentially explosive atmospheres found on gasoline-powered boats.
What size ring terminals can be used with this switch?
The switch is equipped with 3/8"-16 studs and accepts ring terminals sized for 3/8" (M10) studs.
What is the recommended torque for the terminal studs?
The recommended torque for the terminal studs is 140 in-lbs (15.8 N-m).
Can this switch be used in harsh marine environments?
Absolutely. This switch features a harsh environment design with stainless steel hardware, serrated flange lock nuts for vibration resistance, and is sealed against dust and water intrusion, making it highly suitable for demanding marine conditions.
