ICM Controls Electronic Surge Protectors

ICM Controls Surge Protective Devices: Purpose-Built for HVAC and Beyond

When sensitive electrical equipment faces the unpredictable threat of voltage spikes, lightning strikes, or power anomalies, a purpose-engineered surge protective device (SPD) is the first and most critical line of defense. ICM Controls has spent over 40 years refining exactly this kind of protection, making their electronic surge protectors a go-to choice for HVAC technicians, electricians, and installers across North America.

Why ICM Controls Stands Out in Surge Protection

ICM Controls is an ISO-certified manufacturer headquartered in North Syracuse, New York, and every surge protective device they produce is proudly designed and manufactured in the USA. Their vertically integrated facility — covering circuit board fabrication, injection molding, assembly, and engineering under one roof — gives them tight control over quality at every stage of production. This means consistent, reliable performance in the field, batch after batch.

Unlike generic surge strips, ICM Controls SPDs are engineered for demanding, real-world installations. Their devices protect expensive electrical equipment and household appliances from everyday spikes and surges as well as larger transient events caused by lightning strikes or other power anomalies.

Key Product Lines and Technologies

The ICM Controls surge protector lineup includes solutions for both single-phase and three-phase applications, spanning residential, light commercial, and HVAC-specific use cases:

• ICM517 / ICM517A — A UL 1449-certified, Type 2 single-phase SPD rated at 100,000 amps and 1,020 joules of protection. Available with NEMA 3R (weather-resistant) or NEMA 4X (watertight, UV-resistant) metal enclosures for indoor or outdoor mounting. LED status indicators confirm active protection at a glance, and the device is backed by a limited lifetime protection warranty.
• ICM518 — A whole-home, split-phase (120/240V) SPD that can be installed at the service entrance as a Type 1 device or panel-mounted as a Type 2 device. It features thermally fused MOV technology, a rugged NEMA 4X enclosure, and a simple 3-wire hookup — ideal for safeguarding HVAC systems, well pumps, appliances, and home electronics.
• ICM530 Series — A UL-listed Type 1/Type 2 SPD for three-phase Delta and Wye configurations, incorporating Thermally Protected MOVs (TMOVs) that safely disable surge elements when thermal limits are exceeded, preventing fire hazards.

Ideal Applications

ICM Controls SPDs are especially popular among HVAC professionals protecting mini-split systems, heat pumps, and condensers — equipment whose sensitive inverter circuit boards are particularly vulnerable to transient voltage events. The compact, weather-rated enclosures make installation clean and professional whether mounted at an exterior disconnect, inside a panel, or at the service entrance.

Whether you're a homeowner safeguarding a major HVAC investment or a contractor standardizing surge protection across every install, ICM Controls delivers the UL-listed assurance, field-proven durability, and American-made quality that the job demands. Browse the full selection of electronic surge protectors or explore the complete ICM Controls product catalog to find the right solution.