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Blue Sea 240VAC 65A 3-Position Rotary Source Selector Switch
Blue Sea 240VAC 65A 3-Position Rotary Source Selector Switch
UL-Listed Dual 120/240V AC Changeover for Panels up to 4mm Thick
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DESCRIPTION
Reliable Dual AC Source Management for Marine, RV, and Off-Grid Power Systems
The Blue Sea Systems 9077B Rotary AC Source Selector Switch provides dependable manual control for alternating current power distribution. Engineered for demanding environments, this heavy-duty switch allows operators to seamlessly select between two separate 120V or 240V AC power sources and route the chosen input to a single load circuit. Whether managing power between shore power and an onboard generator in a marine vessel, or switching between grid power and an inverter in an off-grid setup, this selector ensures safe, isolated transitions.
In high-amperage AC systems, preventing back-feeding and accidental source cross-connection is critical. Unlike uncertified switching components that may suffer from contact arcing or premature mechanical failure under high loads, this industrial-rated switch is specifically built to handle continuous loads up to 65A. Its intuitive three-position rotary mechanism requires only one-hand operation, passing through a positive 'OFF' position before engaging the secondary power source to protect sensitive downstream electronics and power generation equipment.
Key Features and Benefits
- Dual Source Selection: Safely switches one load circuit between two independent 120V/240V AC power sources, eliminating the risk of dangerous phase cross-connection.
- High-Capacity 65A Rating: Supports substantial AC loads, making it suitable for main distribution panels in large recreational vehicles, commercial boats, and off-grid cabins.
- Industrial-Grade Construction: Features a robust blue housing and heavy-duty screw terminals designed to maintain secure, low-resistance electrical connections even in high-vibration environments.
- Ergonomic One-Hand Operation: The tactile black rotary knob and clearly numbered 3-position faceplate provide immediate visual confirmation of the active power source.
- Streamlined Panel Mounting: Designed for clean integration into custom or existing electrical switchboards, accommodating panel thicknesses up to 0.16" (approx. 4.00mm).
- UL Listed Compliance: Meets stringent safety and performance standards for peace of mind in professional and compliant electrical installations.
Engineered for Harsh Electrical Environments
Blue Sea Systems is renowned across the marine and mobile power industries for producing switchgear that withstands harsh operational conditions. The compact rear housing protects the internal switching contacts while offering accessible, heavy-duty screw terminals that accept large-gauge wiring required for 65A circuits. This ensures minimal voltage drop and reduces the risk of thermal build-up at the terminal junctions.
Installation and System Integration
This rotary switch is designed for rear panel mounting into switchboards, distribution enclosures, or control consoles up to 0.16" (approx. 4.00mm) thick. Please note that this unit functions strictly as an isolation and source selector switch; it does not provide overcurrent protection. For a compliant and safe electrical system, appropriate circuit breakers or fuses must be installed upstream to protect the wiring and connected appliances.
Common Applications
- Marine Vessels: Switching between dockside shore power and an onboard marine generator.
- Caravans, RVs, and Motorhomes: Selecting between mains campsite hook-up and a high-output 240V inverter.
- Off-Grid and Backup Power: Manually transferring loads between utility power and a backup generator in remote sheds or mobile workspaces.
Upgrade your AC power distribution panel with the Blue Sea 65A Rotary Selector Switch to ensure safe, reliable, and compliant manual source switching across your electrical system.
SKU: BS-9077B
SPECIFICATIONS
| Specification | Value |
|---|---|
| Product type | Rotary AC source selector switch |
| Voltage stated in title | 240VAC |
| Rated current | 65A |
| Supported AC sources | 120/240V AC |
| Number of positions | 3 |
| Switching operation | Manual, one-hand operation |
| Mounting | Panel mount; fits panels up to 0.16 in (4.00 mm) thick |
| Installation note | For use where circuit protection is provided elsewhere |
| Construction / rating | Heavy duty industrial rated |
| Standards / compliance | UL listed |
| SKU: | BS-9077B |
| Model #: | BS-9077B |
| MPN: | BS-9077B |
| Package weight: | 0.72 kg |
| Package length: | 0.14 m |
| Package width: | 0.14 m |
| Package height: | 0.12 m |
WARRANTY
Blue Sea Warranty Policy
Blue Sea Systems products sold by us are supplied with a warranty against defects for the warranty period shown below, subject to the product type, application and the terms of this warranty policy.
The express warranty provided by us is limited to a maximum of 5 years from the original date of purchase, unless otherwise required under Australian Consumer Law.
Blue Sea Systems may offer longer manufacturer support on some products at their discretion
Warranty Lengths by Product Range
| Blue Sea Product Range | Warranty Length | Application / Notes |
|---|---|---|
| Most Blue Sea Systems Products | 5 years | Applies to most Blue Sea Systems products found to be defective in materials or manufacture. |
| P12 Battery Chargers | 5 years | Warranty period starts from the original date of purchase. |
| P12 Remote Displays | 5 years | Warranty period starts from the original date of purchase. |
| Digital Meters | 3 years | Warranty period starts from the original date of purchase. |
| Vessel System Monitors | 3 years | Warranty period starts from the original date of purchase. |
Warranty Assessment and Remedy
If a Blue Sea Systems product is found to be defective in materials or manufacture within the applicable warranty period, we will, at our discretion, arrange a repair, replacement, store credit or refund, depending on the nature of the fault and the requirements of Australian Consumer Law.
Products may need to be returned for assessment before a warranty claim can be approved. Where required, the product must be returned with dated proof of purchase and a clear description of the fault.
Labour costs for removing, replacing, reinstalling or diagnosing a product are not covered by this express warranty unless otherwise required under Australian Consumer Law.
Making a Warranty Claim
To make a warranty claim, please contact us with your dated proof of purchase, product details and a description of the fault.
The product may need to be returned for inspection before the claim can be assessed. If the product is confirmed to be faulty and covered by this warranty, we will advise the available remedy.
What This Warranty Does Not Cover
This warranty does not cover faults or damage caused by incorrect installation, incorrect application, misuse, abuse, neglect, unauthorised modification, accidental damage, normal wear and tear, environmental damage, or failure to use the product in accordance with the manufacturer's instructions.
- Incorrect installation or wiring
- Incorrect product selection or application
- Misuse, abuse or neglect
- Physical or accidental damage
- Water ingress or environmental damage outside the product's intended use
- Unauthorised modification or repair
- Normal wear and tear
- Labour costs for removal, replacement, reinstallation or diagnosis
- Freight, travel or call-out costs unless otherwise required by law
- Products not returned for assessment when reasonably required
Manufacturer Support
Blue Sea Systems may provide additional manufacturer support on some products beyond the warranty period listed above. Where available, we may assist customers in contacting the manufacturer, but any manufacturer support beyond the express warranty period is subject to the manufacturer's own terms and continued availability.
Australian Consumer Law
This warranty is in addition to other rights and remedies available at law. Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure.
DOCUMENTS
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