MERSEN Surge Protection Device: Single Phase, 240/120VAC Split, 240/120 V, Non-Metallic
The MERSEN Surge Protection Device is a single-phase, chase-nipple external-mount SPD (SKU 540G39, MPN STXP240S10) with a 240/120VAC split voltage and a max. surge current per mode of 100 kA. It features a…
SKU 3G-OTH-23354
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Product Description
The MERSEN Surge Protection Device is a single-phase, chase-nipple external-mount SPD (SKU 540G39, MPN STXP240S10) with a 240/120VAC split voltage and a max. surge current per mode of 100 kA. It features a non-metallic enclosure, an LED status indicator, a voltage protection rating of 700V (L-G), and a max. continuing operating voltage of 240/120 V.
Frequently Asked Questions
What is the MERSEN STXP240S10 surge protection device used for?
The MERSEN STXP240S10 is a single-phase, chase-nipple external-mount SPD designed to protect sensitive equipment from voltage surges in 240/120VAC split electrical systems. It is commonly used in industrial control panels, HVAC equipment, and pump controls where reliable surge suppression is critical.
What are the specifications of the MERSEN STXP240S10?
The MERSEN STXP240S10 has a 240/120VAC split voltage, max. surge current per mode of 100 kA, voltage protection rating of 700V (L-G), and max. continuing operating voltage of 240/120 V. It includes an LED status indicator and a non-metallic enclosure rated Type 4X.
Where to buy the MERSEN STXP240S10 worldwide?
3G Electric supplies the MERSEN STXP240S10 to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this surge protection device.
How to install the MERSEN STXP240S10 surge protector?
Install the MERSEN STXP240S10 by mounting it externally via the chase nipple, connecting line, neutral, and ground per the 240/120VAC split system. Ensure the SPD is properly grounded and the LED indicator confirms power. Follow NEC guidelines and the manufacturer's manual for safe installation.
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3G Electric supplies MERSEN chase-nipple external-mount spds. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

