Description
Egis M-Series 300A Battery Switch Off/On Knob | Boat Supply Store
Secure critical marine electrical systems against hazardous environments with the Egis M-Series 300A Battery Switch. This unit features SAE J1171 / ISO 8846 ignition protection, safeguarding against combustible gases in engine spaces, a crucial specification for gasoline-powered vessels operating in rough Gulf Coast waters. It offers superior sealing against dust and water intrusion and utilizes serrated flange lock nuts to maintain terminal connection integrity under significant vibration, ensuring uninterrupted power distribution from your battery bank.
Key Features
- Ignition Protected for safe operation in potentially explosive atmospheres (SAE J1171 / ISO 8846)
- Sealed Against Dust & Water Intrusion for reliable performance in wet marine environments
- Vibration Resistance via serrated flange lock nuts, ensuring secure connections
- Durable Harsh Environment Design with stainless steel hardware and high-temperature materials
- Flexible Mounting Options to adapt to various panel configurations
- Robust 300A Continuous Rating for high-demand electrical loads
- Simple Off/On Knob Actuator for straightforward operation
- 3/8"-16 Stud Size Terminals accommodate standard ring terminals
Specifications
| Product Specifications | |
|---|---|
| Max Voltage (Single Circuit) | 48 Vdc |
| Max Voltage (Selector/Dual Circuit) | 32 Vdc |
| Stud Size | 3/8"-16 |
| Terminal Torque | 120 in-lbs (13.6 N-m) |
| Ring Terminal Size | 3/8" (M10) |
| Mounting Holes | #10 Screw |
| Live Switching Rating | 25 Amps |
| Ignition Protection | SAE J1171 / ISO 8846 |
| Bulkhead/Panel Mount Hole | 2-5/8" / 2-5/16" |
| Cable Size | 4/0 AWG |
| Sealing | Sealed against dust & water |
Who This Is For
This battery switch is engineered for marine enthusiasts, boat owners, and professional technicians who demand uncompromising reliability and safety in managing critical electrical systems. It is particularly suited for applications requiring ignition protection in harsh marine environments, from offshore fishing vessels to high-performance powerboats.
How It Compares
| Feature | Egis M-Series 300A Battery Switch Off/On Knob | Competitor |
|---|---|---|
| Max Voltage (Single Circuit) | 48 Vdc | 32V DC, 32V DC |
| Ignition Protection | SAE J1171 / ISO 8846 | Yes, Yes |
| Sealing | Sealed Against Dust & Water Intrusion | Ignition Protected, Ignition Protected |
| Vibration Resistance Feature | Serrated Flange Lock Nuts | Standard locking mechanism, Standard locking mechanism |
| Continuous Rating | 300A (implied) | 300A, 350A |
Common Concerns Answered
Installation guides for this Egis battery switch are difficult to find online. Can you provide assistance?
The Egis M-Series Battery Switches Manual is available for download at https://www.egismobile.com/wp-content/uploads/2023/03/M-Series-Battery-Switches-Manual.pdf, which offers detailed installation instructions and specifications to assist with setup.
Some users prefer a rotary switch. Does this model offer that option?
This specific model features a convenient knob actuator for its Off/On function. While a rotary switch is not an option for this particular SKU, the knob actuator provides simple and secure operation essential for critical battery management.
The live switching rating is only 25 Amps, while the continuous rating is 300A. Does this mean the switch can't handle 300A loads?
The 300A rating refers to the switch's ability to safely handle continuous current flow when in the 'ON' position. The 25A live switching rating applies specifically to the act of switching circuits on or off while they are under load; for higher loads, it is recommended to switch them with the engine off or use auxiliary relays.
Frequently Asked Questions
What is the maximum voltage this Egis M-Series battery switch can handle?
The Egis M-Series 300A Battery Switch can handle a maximum voltage of 48 Vdc for single circuits and 32 Vdc for selector/dual circuits.
Is this Egis battery switch ignition protected?
Yes, this Egis battery switch is ignition protected, meeting SAE J1171 and ISO 8846 standards, making it safe for use in gasoline-powered engine compartments.
What is the stud size and thread for the terminals on this Egis battery switch?
The stud size and thread for the terminals on this Egis battery switch are 3/8"-16.
What is the recommended torque for the terminal studs?
The recommended torque for the terminal studs on this Egis battery switch is 120 in-lbs (13.6 N-m).
What is the IP rating or sealing against dust and water intrusion for this Egis battery switch?
While a specific IP rating is not listed, the Egis M-Series battery switch is explicitly described as being sealed against dust and water intrusion, indicating robust protection against environmental ingress.
