Description
Blue Sea 6004200 Single Circuit Locking Switch | Boat Supply Store
Safeguard your vessel's vital electrical circuits from unauthorized operation with a high-capacity single-pole, single-throw (SPST) disconnect. This switch offers a substantial 300A continuous rating and a secure locking key mechanism, ideal for protecting engine starting circuits on outboard, small gasoline, or diesel powered craft. Engineered with tin-plated copper studs accepting 3/8" ring terminals and a 7/8" stud length, it ensures superior conductivity and corrosion resistance in demanding marine environments.
Key Features
- Secure Single Circuit ON-OFF with Locking Key
- Robust 300 Amps continuous rating
- Versatile Suitable for outboards and small gasoline or diesel engines
- Durable Tin-plated copper studs for maximum conductivity and corrosion resistance
- Compatible Studs accept 3/8" (M10) ring terminals
- Accommodating 7/8" (22 mm) stud length accepts multiple cable terminals
- Reliable One-piece terminal stud design
- Protected Isolating cover protects rear contacts
Specifications
| Product Specifications | |
|---|---|
| Switch Type | Single Circuit ON-OFF |
| Color | Black |
| Maximum Voltage | 48V DC |
| Continuous Rating | 300A |
| Intermittent Rating | 500A |
| Cranking Rating | 900A (30 sec) |
| Terminal Stud Size | 3/8" (M10) |
| Terminal Stud Length | 7/8" (22 mm) |
| Cover | Yes, isolating |
Who This Is For
Boat owners and marine technicians requiring a secure and high-amperage disconnect for critical engine circuits. This switch is specifically designed for applications on outboard, small gasoline, or diesel engines where electrical safety and reliability are paramount.
How It Compares
| Feature | Blue Sea 6004200 Single Circuit Locking Switch | Competitor |
|---|---|---|
| Switch Type | Single Circuit ON-OFF w/Locking Key | Single Circuit ON-OFF, Single Circuit ON-OFF |
| Continuous Rating | 300A | 300A, 250A |
| Maximum Voltage | 48V DC | 32V DC, 32V DC |
| Locking Key | Yes | No, No |
Common Concerns Answered
Is the price of the Blue Sea 6004200 justified?
While the initial investment may be higher than basic switches, the Blue Sea 6004200's robust construction, 300A continuous rating, and secure locking key offer superior reliability and safety for critical engine circuits, providing long-term value and peace of mind.
Can this switch be difficult to install in tight spaces?
Installation complexity can arise in confined spaces or with existing wiring configurations. Careful planning of mounting location and cable routing, along with the use of the included breakout tabs for versatile wire access, can mitigate installation challenges.
Is the locking key feature truly necessary for all applications?
The locking key is a critical security feature, preventing accidental or unauthorized deactivation of essential engine circuits, which is particularly beneficial for maintaining operational integrity and safety during transit or while unattended.
Frequently Asked Questions
What is the continuous amperage rating of the Blue Sea 6004200 switch?
The Blue Sea 6004200 switch features a continuous amperage rating of 300 Amps.
What type of engines is this switch suitable for?
This switch is suitable for outboards and small gasoline or diesel engines, offering reliable circuit management for their electrical systems.
What size ring terminals can be used with this switch?
The tin-plated copper studs on this switch are designed to accept 3/8" (M10) ring terminals.
Does this switch come with a cover to protect the rear contacts?
Yes, the Blue Sea 6004200 includes an isolating cover to protect the rear electrical contacts from environmental exposure and accidental shorting.
What is the maximum DC voltage this switch can handle?
This switch is rated for a maximum DC voltage of 48V DC.
