Intermatic IG3240RC3 Surge Protective Device

Product Description

The INTERMATIC IG3240RC3 is a surge protective device (SPD) designed for installation at the main electrical panel. It provides whole-home transient voltage surge suppression, diverting damaging voltage spikes away from connected equipment and downstream circuits. Licensed electricians install this device directly at the load center to protect HVAC systems, appliances, electronics, and other sensitive loads from surges originating on the utility line or generated internally by motor loads cycling on and off. The unit is rated for residential and light commercial applications where panel-level surge protection is required.

The IG3240RC3 is suited for installation in residential and light commercial electrical panels where whole-home surge protection is needed. It mounts inside the load center enclosure, making it a clean, code-compliant solution for new construction and retrofit projects. Electricians working on service upgrades, HVAC system installations, or general electrical work commonly add panel-mount SPDs like this unit to protect variable-speed drives, ECM motors, smart thermostats, and other surge-sensitive equipment.

Key Features

• Panel-mount installation keeps the SPD at the first point of entry for surge events
• Designed to suppress transient voltage surges on residential and light commercial electrical systems
• Compact form factor fits within standard load center enclosures
• Protects downstream HVAC equipment, ECM motors, and sensitive electronics from voltage transients
• Hard-wired installation eliminates reliance on outlet-level protection strips

Compatibility

Designed as an OEM-style panel-mount surge protective device for residential and light commercial load centers requiring transient voltage surge suppression at the service entrance.

Installation Notes

Installation must be performed by a licensed electrician in accordance with NFPA 70 (NEC) Article 285, which governs surge-protective devices. De-energize the panel and confirm the main breaker is off before beginning installation. Follow the manufacturer wiring instructions for lead connections and verify the ground bond is secure before restoring power. Consult local AHJ requirements, as some jurisdictions have specific rules for SPD placement and labeling.

Technical Specifications

• Weight: 2.405 pounds
• Length: 6.251 inches
• Width: 4.400 inches
• Height: 3.751 inches
• UPC: 07827512440

Standard Information

• Brand: INTERMATIC
• Manufacturer Part Number: IG3240RC3