To what type of circuit must the sump pump and lights in the elevator pit be connected?

The sump pump and lights in an elevator pit must be connected to a separate branch circuit or a GFCI line side to ensure safety and compliance with code requirements. A separate branch circuit is important because it isolates the sump pump and lights from other electrical loads, which reduces the risk of overload and ensures reliability of operation, particularly in a critical area like an elevator pit where water accumulation could occur. Additionally, a GFCI (Ground Fault Circuit Interrupter) is essential in this location due to the presence of water, which increases the risk of electrical shock. The GFCI provides crucial protection by cutting off power if it detects an imbalance between incoming and outgoing current, helping to safeguard individuals working in or around the area.

This specific configuration is imperative to maintain safety standards and avoid potential hazards associated with water and electricity.