Description
Egis M-Series 300A Battery Switch ON/OFF Key | Boat Supply Store
This battery switch is engineered to provide superior electrical isolation and safety in demanding marine environments. It features robust sealing against dust and water intrusion and is ignition protected to SAE J1171/ISO 8846 standards, crucial for gasoline-powered vessels where explosive vapors may be present. With 3/8"-16 studs and a capacity to accept 4/0 AWG cable, it is designed for critical power management on any boat operating in challenging offshore conditions or the intricate bayous of Texas.
Key Features
- Superior Sealing against dust & water intrusion for long-term reliability.
- Ignition Protected meeting SAE J1171 / ISO 8846 standards for enhanced safety.
- High Vibration Resistance via serrated flange lock nuts.
- Durable Harsh Environment Design utilizing stainless steel hardware and high-temperature materials.
- Flexible Mounting Options to accommodate various panel configurations.
- Robust 300A Continuous Rating ensuring ample capacity for substantial electrical loads.
- Key Actuator provides secure ON/OFF control.
- Accepts 3/8" (M10) Ring Terminals for broad compatibility.
Specifications
| Product Specifications | |
|---|---|
| Maximum Voltage (Single Circuit) | 48 Vdc |
| Maximum Voltage (Selector / Dual Circuit) | 32 Vdc |
| Stud Size And Thread | 3/8"-16 |
| Terminal Stud Torque | 120 in-lbs (13.6 N-m) |
| Ring Terminal Size Acceptance | 3/8" (M10) |
| Mounting Holes | #10 Screw |
| Live Switching Rating | 25 Amps |
| Ignition Protection Rating | SAE J1171 / ISO 8846 |
| Bulkhead / Panel - Mounting Hole Size | 2-5/8 / 2-5/16 |
| Cable Size to Meet Rating | 4/0 AWG |
Who This Is For
Marine enthusiasts and boat owners who require a dependable and safe method for managing their vessel's electrical power. Marine technicians will find this switch ideal for installations demanding robust performance and compliance with safety certifications.
How It Compares
| Feature | Egis M-Series 300A Battery Switch ON/OFF Key | Continuous rating provided |
|---|---|---|
| Continuous Amp Rating | 300A | 300A, 350A |
| Max Voltage | 48 Vdc | 48 VDC, 48 VDC |
| Ignition Protected | Yes (SAE J1171 / ISO 8846) | Yes, Yes |
| Stud Size And Thread | 3/8"-16 | 3/8"-16, 5/8" |
| Live Switching Rating | 25 Amps | N/A (Continuous/Intermittent rating provided), N/A |
| Sealing | Sealed Against Dust & Water Intrusion | IP67 Rated, N/A |
| Actuator Type | Key Actuator | Rotary Knob, Rotary Knob |
Common Concerns Answered
How does the live switching rating of 25 Amps relate to the 300A continuous rating?
The 300A rating is the continuous load capacity for disconnecting/connecting batteries when the system is not actively switching. The 25A live switching rating is for momentarily interrupting small loads while the engine is running, which is a safety feature for certain applications, not the primary battery isolation duty.
Are replacement parts readily available for this Egis battery switch?
While specific replacement parts for older models might require direct manufacturer inquiry, the robust construction of the Egis M-Series is designed for long-term durability, minimizing the need for frequent part replacement. Its standard mounting and stud sizes ensure compatibility with common marine electrical components.
Is the key actuator as convenient as a rotary knob for frequent battery switching?
The key actuator offers enhanced security by preventing unauthorized or accidental operation, which is a critical safety benefit. For frequent, on-the-fly adjustments, a rotary knob might offer quicker access, but the Egis switch prioritizes safety and system integrity through its keyed design, ideal for primary battery isolation.
Frequently Asked Questions
What is the maximum voltage rating for the Egis M-Series 300A Battery Switch?
The Egis M-Series 300A Battery Switch has a maximum voltage rating of 48 Vdc for a single circuit and 32 Vdc for selector/dual circuit configurations.
Is the Egis M-Series 300A Battery Switch ignition protected?
Yes, the Egis M-Series 300A Battery Switch is ignition protected and certified to SAE J1171 / ISO 8846 standards.
What is the stud size and thread for the Egis M-Series 300A Battery Switch?
The stud size and thread for this battery switch are 3/8"-16.
What is the terminal stud torque specification for this battery switch?
The recommended terminal stud torque specification for the Egis M-Series 300A Battery Switch is 120 in-lbs (13.6 N-m).
What is the recommended cable size to meet the rating for this switch?
The recommended cable size to meet the rating for the Egis M-Series 300A Battery Switch is 4/0 AWG.
