What is a Dual Circuit Exit Sign?

A dual circuit exit sign is an exit sign designed to be connected to two separate power circuits, providing enhanced reliability and flexibility in case of a power failure.

Dual circuit exit signs are designed without a battery and operate using two independent power circuits, each connected directly to external power sources. These signs rely solely on these power circuits, without any internal battery backup.

How It Works:

• Two Independent Circuits: The exit sign is wired to two different electrical circuits (usually from separate power sources or panels).
• Fail-Safe Operation: If one circuit fails, the other can still power the sign.
• Controlled Operation: One circuit may be used during normal operation, while the second may activate during emergencies or off-hours.

Why Use a Dual Circuit Exit Sign?

• Redundancy: Ensures the sign stays illuminated if one power source fails.
• Code Compliance: Required in some facilities like hospitals, airports, or high-rise buildings.
• Load Management: Allows for load sharing or zone control between circuits.

Dual Circuit vs. Standard Exit Signs

Feature	Dual Circuit Exit Sign	Standard Exit Sign
Power Sources	Two circuits	One circuit
Redundancy	Yes	No
Complexity	Slightly more complex to install	Simple installation
Typical Use	Critical facilities, code-driven needs	General use

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