Intermatic IG2240-IMSK Smart Guard: Replaceable IMODULES for Whole-House Surge Protection

Overview

Intermatic's Smart Guard IG2240-IMSK delivers trusted whole-home surge protection with a modern twist. Designed to guard large investments—from appliances and computers to HVAC systems and TVs—this device emphasizes ease of maintenance and clear status indicators. A blue LED signals the unit is ON, while a green LED confirms that surge protection is active. Built around TPMOV (Thermally Protected Metal Oxide Varistor) technology, it aims to minimize common failure modes associated with traditional MOV solutions, offering a reliable shield for daily life and work-from-home setups.

Key Benefits at a Glance

• Easily replace IMODULES, no new SPD unit required: Three modular LEDs provide quick status checks and straightforward maintenance by swapping individual IMODULES when needed.
• Wall-to-wall protection when wired to the main panel: Extends protection to all devices across a home or small business, not just those on a single strip.
• Peace of mind with a long-term warranty: 10-year coverage and a $50,000 connected equipment warranty add a helpful layer of reassurance.

What to Expect in Use

• Status indicators: The blue ON light and green protection light offer at-a-glance reassurance during normal operation.
• Convenient maintenance: The Module Power Switch makes it easy to disconnect power while replacing IMODULES, reducing downtime.
• Rugged design and placement options: A Type 1 enclosure supports indoor metal applications and outdoor-style installations before service entrances (Type 1) or after service entrances (Type 2), depending on installation needs.

Technical Confidence

UL Listed to ANSI/UL 1449 3rd edition, the IG2240-IMSK blends modern protection technology with practical, everyday use. The system is designed to protect critical electronics and appliances, offering a protective layer that complements other home electrical safety measures. While results can vary by home and load, the device is positioned as a durable, proactive safeguard rather than a guaranteed outcome in every scenario.

Whether you’re outfitting a single-family home or a small business, the IG2240-IMSK emphasizes maintenance simplicity and broad coverage. Its replaceable IMODULES model keeps the protection current without discarding the entire unit, and the integrated indicators help keep you informed about the protection status in real time.