Mersen STXR240D05 240V Surge Protective Device

Product Description

The MERSEN STXR240D05 is a single-phase surge protective device (SPD) rated for 240-volt applications. It is designed to limit transient overvoltages on electrical systems, protecting connected equipment from voltage spikes caused by lightning strikes, utility switching events, and internal load switching. Licensed electricians install this device at distribution panels, sub-panels, or dedicated branch circuits to provide point-of-use or service-entrance surge protection. It suits residential and light commercial electrical systems where reliable overvoltage protection is required.

The STXR240D05 is suited for 240-volt single-phase electrical installations. Typical applications include protection of HVAC equipment, motor-driven loads, and sensitive electronic controls connected to residential or light commercial distribution systems. It is installed at or near the panel serving the equipment to be protected, and is appropriate wherever transient surge events pose a risk to connected loads.

Key Features

• Rated for 240-volt single-phase electrical systems
• Limits transient overvoltages to protect downstream equipment
• Suitable for residential and light commercial panel installations
• Compact form factor for service-entrance or branch-circuit mounting

Compatibility

Designed as an OEM-style surge protective device for 240-volt single-phase electrical distribution systems in residential and light commercial applications.

Installation Notes

Installation must be performed by a licensed electrician in accordance with NFPA 70 (National Electrical Code) requirements for surge protective devices. De-energize the panel and verify the absence of voltage before making any connections. Follow the manufacturer wiring instructions and all local authority-having-jurisdiction requirements. Do not install on systems with voltage ratings outside the device specification.

Technical Specifications

• Voltage Rating: 240 volts
• UPC: 78200146990

Standard Information

• Brand: MERSEN
• Manufacturer Part Number: STXR240D05