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MERSENChase-Nipple External-Mount SPDs

MERSEN STXH240S05 Chase-Nipple External-Mount SPD, 240/120VAC Split, 50kA

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
STXH240S05 Chase-Nipple External-Mount SPD, 240/120VAC Split, 50kA
Part Number
STXH240S05
Category
Chase-Nipple External-Mount SPDs
Available to Order
Also known as:STXH240S05MERSEN
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.

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
Industrial control panels — Mersen USCC1 and USCC2 UL Class CC fuse blocks for DIN rail mounting and finger-safe branch circuit protection.
Motor starters — Mersen ATQ time-delay fuses and DAR0 R-rated fuses for motor overload and short-circuit protection.
Power supplies and instrumentation — Mersen GGM and GSB fast-acting cylindrical fuses for overcurrent protection in compact electronic circuits.
DC systems — Mersen A30QS very-fast-acting square fuses rated 300 V DC for semiconductor and DC equipment protection.
Medium-voltage distribution — Mersen DAR0 R-rated fuses rated 5.08 kV AC for general-purpose overcurrent protection with visual indication.
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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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