78094-33R RELIANCE

Reliance 78094-33R Central Control Unit

Brand：RELIANCE Model number：78094-33R

Country of origin: United States Product weight：0.55kg

HS code：9032899099

Product Details：

Product Dimensions：

Reliance Controls Corporation specializes in products that manage the transfer of electrical power, particularly for backup generator applications. When referring to "Central Control Units" in their context, this typically points to their transfer switches and transfer panels. These are central to safely and effectively connecting a portable or standby generator to a building's electrical system, ensuring that critical circuits remain powered during utility outages.

Functionality:

Isolation: The primary function is to safely isolate the generator's power from the utility grid. This is crucial to prevent "backfeeding," which can energize utility lines and endanger utility workers, as well as cause damage to appliances.
Power Transfer: They enable the user to manually or automatically switch the power source for selected circuits from the utility grid to a connected generator.
Circuit Management: Many units allow for the selection of specific circuits (e.g., furnace, refrigerator, lights) to be powered by the generator, optimizing fuel consumption and load balancing.
Monitoring (Optional): Some models include watt meters or indicators to help monitor the generator's load and prevent overloading.

Types:

Manual Transfer Switches/Panels (e.g., Pro/Tran®, Panel/Link®): These require manual intervention to switch power sources. They are often integrated with circuit breakers.
Automatic Transfer Switches (ATS): While Reliance Controls is more known for manual solutions, they do offer some automatic options or systems that can be integrated with ATS for hands-free operation upon utility power loss.
Power Inlet Boxes: These are external connection points for the generator, typically paired with a transfer switch located inside the building.

Product Parameters

Given the variety of models, exact parameters will vary, but common specifications include:

Circuits: Available in various configurations (e.g., 6, 8, 10, 12, 16 circuits), indicating the number of individual circuits that can be transferred.
Amperage Rating:

Utility Input: Commonly ranges from 30A to 200A (for whole-house transfer panels).
Generator Input: Typically 20A, 30A, 50A, or 60A, matching common portable generator outputs.

Voltage: Designed for standard residential and light commercial voltages, typically 120/240V AC.
Enclosure: Available in indoor (e.g., metal, powder-coated steel) and outdoor (e.g., NEMA 3R rated) enclosures.
Wattage Capacity: Maximum running watts supported by the unit, typically correlating with the amperage (e.g., 5,000 watts for 20A, 7,500 watts for 30A, 12,500 watts for 50A).
Circuit Breakers: Units often include integrated circuit breakers for each transferable circuit.
Dimensions & Weight: Vary significantly by model and capacity.
Certifications: UL listed for safety.

Product Advantages

Safety: The paramount advantage is safety. Reliance Central Control Units (transfer switches) eliminate the dangerous practice of "backfeeding" a generator into the utility grid via a main panel or dryer outlet.
Convenience: They eliminate the need for multiple extension cords running throughout a home or business, providing a centralized and organized power solution.
Circuit Selection: Allows users to selectively power essential circuits during an outage, optimizing generator fuel consumption.
Ease of Use (Manual): Manual transfer switches are straightforward to operate, often using toggle switches or interlocked breakers.
Reliability: Built for durability and long-term performance in various environments.
Compliance: Designed to meet electrical codes, ensuring safe and compliant backup power installations.
Load Management: Some models with watt meters help users monitor and balance the load on their generator, maximizing its output and preventing overloads.
Cost-Effective: Often a more affordable and practical solution for portable generator users compared to a full-blown standby generator system.

Important Considerations

Generator Sizing: The "Central Control Unit" (transfer switch) must be appropriately sized for the generator's output and the loads it will power. Overloading the generator is a common mistake.
Professional Installation: While some manual transfer switches are designed for easier DIY installation, professional electrical installation is highly recommended to ensure compliance with local electrical codes and safe operation.
Critical vs. Non-Critical Loads: Users must decide which circuits are critical and plan accordingly, as the transfer switch typically only powers a subset of the building's circuits.
Enclosure Type: Select an enclosure type (indoor or outdoor rated) that matches the installation environment.
Cable Lengths: Consider the required length of the generator power cord to reach the inlet box or transfer switch.
Maintenance: While generally low-maintenance, it's good practice to periodically test the system (e.g., during planned outages) to ensure it functions correctly.
"Whole House" vs. "Partial House" Transfer: Most Reliance transfer switches provide partial home coverage, transferring only selected circuits. True "whole-house" solutions typically involve larger, often automatic, transfer switches.

Product Applications

Residential Backup Power: The most common application, allowing homeowners to power essential appliances (furnace, refrigerator, well pump, lights) during power outages using a portable generator.
Small Commercial/Business Backup: Providing backup power for critical systems in small offices, shops, or farms during utility interruptions.
Emergency Services: Powering essential equipment in emergency response situations where utility power is unavailable.
Remote Cabins/Off-Grid Living (Supplemental): While not typically a primary off-grid solution, they can be used to integrate a generator for supplemental power in remote locations.

801429-RC RELIANCE

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