- Allows use of a single UL/cUL-listed NEC-compliant device
- Avoids nuisance tripping through proprietary fault detection means
- Ideal for wet commercial workplaces
Siemens presents electrical specifiers and installers with the first 3-Pole Ground Fault Circuit Interrupters (GFCIs) for enhancing electrical safety in commercial facilities. Offering ampacities of up to 100 A for powering large equipment loads in commercial workspaces, these UL and cUL-listed 3-pole interrupters are the first to deliver 5-milliamp sensitivity for helping protect personnel from electrocution hazards in accordance with the latest National Electrical Code® (NEC) requirements. These devices simplify compliance for restaurants, car washes, laundromats, commercial window washing operations, and other applications where ground-fault protection is needed for wet commercial workplaces.
Expanded in 2023, NEC Article 210.8(B) specifies that all receptacles on 3-pole branch circuits 150 volts or less, up to 100 amps, require Class A GFCIs to help protect personnel from electrical hazards. For ampacities exceeding 50 amperes, this often required that electrical professionals develop complex and costly solutions using multiple devices to protect 3-pole circuits. Siemens’ new 3-pole GFCIs enable engineers, electricians, and distributors to deliver critical safety functionality using just one agency-listed, NEC-compliant device that is easy to specify, procure, install, and test.
The new 3-pole GFCIs streamline procurement, deployment, and use in multiple ways. Conventional GFCIs rely on measured differences in current-in/current-out and can thus be subject to nuisance tripping from imbalanced loads, resulting in unnecessary power disruptions to workplace equipment. Siemens 3-Pole GFCIs are insensitive to power imbalances between poles, and thus can reduce nuisance tripping to increase reliability and uptime in commercial applications. Recommended for installation by licensed electricians, Siemens 3-Pole GFCIs can also be installed on 2-pole circuits to further simplify procurement and installation logistics.
For more information, visit www.siemens.com
