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MERSENChase-Nipple External-Mount SPDs

MERSEN Surge Protection Device: Single Phase, 240/120VAC Split, 1000V (L-G)/600V (L-N)

The MERSEN STXH240S05 is a single-phase Chase-Nipple External-Mount Surge Protection Device (SPD) with a 240/120VAC Split voltage and a Max. Continuing Operating Voltage of 240/120 V. It features a Voltage Protection…

SKU 3G-OTH-23239

Brand
MERSEN
Item
Surge Protection Device: Single Phase, 240/120VAC Split, 1000V
Category
Chase-Nipple External-Mount SPDs
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Technical Specifications

MERSEN
Manufacturer Part Number
STXH240S05
Type
1000V (L-G)/600V (L-N), 240/120 V
Split
240/120VAC
Voltage
240/120VAC Split
Includes
LED Status Indicator
Enclosure Material
Non-Metallic
Voltage Protection Rating
1000V (L-G)
Max. Surge Current per Mode
50 kA
Max. Continuing Operating Voltage
240/120 V
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MERSEN Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The MERSEN STXH240S05 is a single-phase Chase-Nipple External-Mount Surge Protection Device (SPD) with a 240/120VAC Split voltage and a Max. Continuing Operating Voltage of 240/120 V. It features a Voltage Protection Rating of 1000V (L-G) and a Max. Surge Current per Mode of 50 kA. The unit includes an LED Status Indicator and is housed in a Non-Metallic enclosure.

Frequently Asked Questions

What is the MERSEN STXH240S05 surge protection device used for?

The MERSEN STXH240S05 is a single-phase Chase-Nipple External-Mount SPD designed to protect electrical equipment from voltage surges and transients in 240/120VAC split-phase systems. It is commonly used in commercial and industrial applications where reliable surge suppression is required, such as panel boards and load centers.

What are the specifications of the MERSEN STXH240S05?

The MERSEN STXH240S05 has a voltage of 240/120VAC Split, a Max. Continuing Operating Voltage of 240/120 V, and a Voltage Protection Rating of 1000V (L-G). It provides a Max. Surge Current per Mode of 50 kA, includes an LED Status Indicator, and features a Non-Metallic enclosure.

Where to buy the MERSEN STXH240S05 worldwide?

You can source the MERSEN STXH240S05 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply genuine MERSEN surge protection devices to procurement teams and engineers globally.

How to install the MERSEN STXH240S05 SPD?

Install the MERSEN STXH240S05 by mounting it externally via the chase nipple to a panel or enclosure. Connect line, neutral, and ground per the 240/120VAC split-phase wiring diagram. Ensure the LED Status Indicator illuminates after power-up. Follow NEC and local codes; consult a qualified electrician for proper installation and surge current rating compliance.

Used in

Common applications for MERSEN
Power electronics protection — MERSEN A70Q series semiconductor fuses in variable frequency drives for motor control.
Surge protection for industrial panels — MERSEN STP480D07 SPDs in three-phase 480V AC distribution boards.
Control circuit overcurrent protection — MERSEN ATM series midget fuses in PLC and instrumentation cabinets.
Power distribution in manufacturing — MERSEN FSPDB4A finger-safe blocks in motor control centers for wire management.
DC bus protection in renewable energy — MERSEN A30QS series fuses in solar inverter DC inputs.
High-voltage semiconductor protection — MERSEN A70Q series fuses in welding equipment power supplies.

MERSEN Products

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.

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