First Impressions of Sierra International MP78800 Rotary Switch On Off On Double Pole
The Sierra International MP78800 Rotary Switch On Off On Double Pole is a seemingly simple component, but for any mariner, a reliable rotary switch is as essential as a sturdy hull. This switch promises to handle the crucial tasks of controlling electrical systems on a boat, particularly bilge pumps, with the added benefit of easy installation and robust construction. It’s from Sierra International, a brand known for its marine-grade electrical components.
I’ve spent years battling corroded, failing switches on various vessels, and I know firsthand the frustration and potential danger of a faulty electrical system at sea. I was specifically searching for a durable, easily replaceable switch that could handle the demanding marine environment and offer a clear, positive action. Having struggled with other brands whose switches became stiff or failed entirely after just a few seasons, the promise of durability and easy replacement with the Sierra International MP78800 Rotary Switch On Off On Double Pole caught my attention.
Upon unboxing the Sierra International MP78800 Rotary Switch On Off On Double Pole, the first thing I noticed was its solid feel. The plastic housing felt rugged and the rotary action was firm and deliberate. It certainly felt more substantial than the flimsy, imported switches I’ve used in the past.
Compared to a generic, no-name rotary switch I had lying around and a Blue Sea Systems switch I use on my own boat, the Sierra International MP78800 Rotary Switch On Off On Double Pole appeared to strike a good balance between price and perceived quality. The Blue Sea Systems switch is undoubtedly more robust but also significantly more expensive, while the generic switch felt cheap and unreliable. Ultimately, the promised ease of replacement and double pole functionality swayed me towards the Sierra International MP78800 Rotary Switch On Off On Double Pole.
My initial impression was cautiously optimistic. The switch seems well-built and the rotary action gives a sense of quality, but the real test would be how it performs in the harsh marine environment over time. I was hopeful that the Sierra International MP78800 Rotary Switch On Off On Double Pole would solve my need for a reliable and easy-to-install switch.
Real-World Testing: Putting Sierra International MP78800 Rotary Switch On Off On Double Pole to the Test
First Use Experience
I installed the Sierra International MP78800 Rotary Switch On Off On Double Pole on a small fishing boat I use for inshore trips. I wired it to control the primary bilge pump and a secondary backup pump, taking advantage of the double-pole functionality. The installation was straightforward, and the switch fit perfectly into the existing 1/2-inch hole in the console.
The first few trips were uneventful, but provided an important shakedown. We encountered some choppy conditions and a bit of spray, but the switch functioned flawlessly, providing positive engagement in each position. The Sierra International MP78800 Rotary Switch On Off On Double Pole proved easy to use even with wet hands, which is a critical consideration on a boat.
Extended Use & Reliability
After several months of use, including exposure to saltwater spray and direct sunlight, the Sierra International MP78800 Rotary Switch On Off On Double Pole has held up surprisingly well. There is no sign of corrosion on the terminals, and the rotary action remains smooth and positive. I have checked the connections periodically and found them to be secure.
I’ve noticed a very slight amount of fading on the plastic knob from UV exposure, but it is barely noticeable and doesn’t affect its function. Cleaning is simple; a quick wipe with a damp cloth removes any salt buildup. It has definitely outperformed the cheaper switches I’ve used in the past, which tended to corrode and fail within a season.
Compared to my experiences with the higher-end Blue Sea Systems switch on my larger boat, the Sierra International MP78800 Rotary Switch On Off On Double Pole doesn’t quite have the same level of robustness, but it offers excellent value for the price. For a smaller boat or less demanding application, it’s an excellent choice, offering dependability without breaking the bank.
Breaking Down the Features of Sierra International MP78800 Rotary Switch On Off On Double Pole
Specifications
The Sierra International MP78800 Rotary Switch On Off On Double Pole is designed for marine use with the following specifications:
- Switch Function: On-Off-On Double Pole. This means it controls two separate circuits simultaneously with three positions.
- Style: ROTOSWITCH, indicating a rotating switch mechanism. This design provides a familiar and intuitive user interface.
- Rated: 20 Amp @ 12 V. This rating specifies the maximum current the switch can handle at 12 volts DC.
- Number of Battery Feeds: 1, meaning it operates from a single power source. This simplifies wiring and reduces the complexity of the electrical system.
- Hole Size: 1/2 inch. This standard size makes it easy to replace existing switches or install in pre-drilled panels.
These specifications are important because they directly impact the switch’s ability to handle the electrical loads on a boat and its ease of installation. The 20-amp rating is sufficient for most bilge pumps and other common 12V accessories. The double-pole configuration allows for versatile wiring options, such as controlling positive and negative leads or switching between two different devices.
Performance & Functionality
The Sierra International MP78800 Rotary Switch On Off On Double Pole performs its job reliably and effectively. The rotary action is smooth and positive, providing a clear indication of the selected position. The switch consistently makes and breaks the electrical connections without any noticeable arcing or hesitation.
The primary strength of the Sierra International MP78800 Rotary Switch On Off On Double Pole is its reliability and ease of use. One potential improvement could be a more robust housing to further enhance its durability in extreme conditions. The switch meets expectations for a mid-range marine rotary switch, offering dependable performance at a reasonable price point.
Design & Ergonomics
The Sierra International MP78800 Rotary Switch On Off On Double Pole features a simple, functional design with a durable plastic housing and a rounded knob for easy gripping. The materials used appear to be marine-grade, resistant to corrosion and UV damage. The switch feels solid in hand, and the rotary action provides tactile feedback.
The switch is user-friendly with no learning curve, making it easy to operate even for those with limited experience in marine electrical systems. The 1/2-inch mounting hole is a standard size, facilitating easy replacement of existing switches.
Durability & Maintenance
The Sierra International MP78800 Rotary Switch On Off On Double Pole is expected to last for several seasons with proper care and maintenance. The plastic housing and sealed construction help protect the internal components from moisture and corrosion.
Maintenance is straightforward; regular inspection of the terminals and a quick cleaning with a damp cloth are usually sufficient. The cam-action mechanism covering the exposed terminal contacts helps prevent accidental shorting.
Accessories and Customization Options
The Sierra International MP78800 Rotary Switch On Off On Double Pole does not come with any specific accessories, as it’s a self-contained unit. There are limited customization options, but you could potentially replace the knob with a different style or color if desired, although this would likely void any warranty.
It is compatible with standard marine wiring connectors and can be used with a variety of wire gauges depending on the specific application. The 1/2-inch mounting hole is a common size, so it should fit most standard switch panels.
Pros and Cons of Sierra International MP78800 Rotary Switch On Off On Double Pole
Pros
- Reliable Performance: Consistently makes and breaks connections without issues.
- Easy Installation: Standard 1/2-inch hole size for simple replacement.
- Durable Construction: Marine-grade materials resist corrosion.
- Positive Rotary Action: Provides clear indication of switch position.
- Double Pole Functionality: Allows control of two separate circuits.
Cons
- Limited Customization: Few options for aesthetic modifications.
- Plastic Housing: While durable, it may not be as robust as a metal housing.
Who Should Buy Sierra International MP78800 Rotary Switch On Off On Double Pole?
The Sierra International MP78800 Rotary Switch On Off On Double Pole is perfect for boat owners looking for a reliable and affordable replacement switch for bilge pumps, navigation lights, or other 12V accessories. It’s particularly well-suited for smaller boats or applications where a high-end, expensive switch is not necessary. DIY boaters who appreciate ease of installation will also find this switch appealing.
Those who require an extremely rugged, heavy-duty switch for demanding applications or harsh environments might want to consider a more expensive, metal-housed alternative. Someone needing advanced features, such as dimming control or built-in circuit protection, should also look elsewhere. A fuse or circuit breaker should always be installed in conjunction with any electrical switch.
Conclusion on Sierra International MP78800 Rotary Switch On Off On Double Pole
The Sierra International MP78800 Rotary Switch On Off On Double Pole is a solid and dependable marine switch that offers excellent value for the price. Its reliable performance, easy installation, and durable construction make it a worthwhile investment for any boat owner in need of a replacement switch. The double pole functionality adds versatility for controlling multiple circuits.
The price is definitely justified, considering the quality and features offered. Cheaper switches often fail quickly in the marine environment, leading to frustration and potential safety hazards. I would personally recommend the Sierra International MP78800 Rotary Switch On Off On Double Pole to anyone seeking a reliable, affordable, and easy-to-install marine rotary switch.
Don’t let a faulty switch ruin your day on the water! Upgrade to the Sierra International MP78800 Rotary Switch On Off On Double Pole and enjoy peace of mind knowing your electrical systems are under control.