The RectorSeal 96414 RSH-120 Whole Home Surge Protector is a Type 1 Surge Protective Device engineered to defend residential and light commercial electrical systems from transient voltage surges caused by lightning strikes, grid switching, and power disturbances.
Designed for installation directly at the main breaker panel, the RSH-120 intercepts and safely diverts excess voltage before it reaches sensitive equipment such as HVAC systems, condensers, air handlers, smart thermostats, appliances, and home electronics.
This unit combines Gas Discharge Tube (GDT) technology with Thermally Fused Metal Oxide Varistors (TFMOVs) to deliver fast, reliable surge suppression while maintaining long service life. Dual diagnostic LEDs and an integrated audible alarm provide immediate status indication, ensuring contractors and homeowners know the unit is actively protecting the system.
The NEMA 4X and IP66 rated enclosure allows for both indoor and outdoor installation, making it ideal for residential panels, commercial buildings, and HVAC protection applications.
If you are installing expensive equipment, protecting the entire panel is not optional. This is front-line defense.

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