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LITTELFUSE Surge Protection Device: Single Phase, 480/240V AC, 350 V AC, Polycarbonate - External Surface-Mount SPDs
LITTELFUSEExternal Surface-Mount SPDs

LITTELFUSE Surge Protection Device: Single Phase, 480/240V AC, 350 V AC, Polycarbonate

The LITTELFUSE Surge Protection Device (SPDN-D240-2S) is a single-phase, external surface-mount SPD with a polycarbonate enclosure. It operates at 480/240V AC with a maximum continuous operating voltage of 350 V AC…

SKU 3G-OTH-21802

Also listed as: SPDND2402S · SPDN D240 2S

Brand
LITTELFUSE
Item
Surge Protection Device: Single Phase, 480/240V AC, 350 V AC, Polycarbonate
Category
External Surface-Mount SPDs
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

LITTELFUSE
Manufacturer Part Number
SPDN-D240-2S
Type
Polycarbonate, 4X
AC
480/240V
Voltage
480/240V AC
Includes
LED Status Indicator
Enclosure Material
Polycarbonate
Voltage Protection Rating
1200V (N-G)
Max. Continuing Operating Voltage
350 V AC

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LITTELFUSE Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The LITTELFUSE Surge Protection Device (SPDN-D240-2S) is a single-phase, external surface-mount SPD with a polycarbonate enclosure. It operates at 480/240V AC with a maximum continuous operating voltage of 350 V AC and a voltage protection rating of 1200V (N-G). The unit includes an LED status indicator for monitoring.

Frequently Asked Questions

What is the LITTELFUSE SPDN-D240-2S surge protection device used for?

The LITTELFUSE SPDN-D240-2S protects single-phase electrical equipment from voltage spikes and transient surges. It is commonly installed in industrial control panels, HVAC systems, and pump stations where reliable surge suppression is critical to prevent downtime and equipment damage.

What are the specifications of the LITTELFUSE SPDN-D240-2S?

The LITTELFUSE SPDN-D240-2S is a single-phase, external surface-mount SPD rated for 480/240V AC. It has a maximum continuous operating voltage of 350 V AC and a voltage protection rating of 1200V (N-G). The polycarbonate enclosure is rated Type 4X, and an LED status indicator is included.

Where to buy the LITTELFUSE SPDN-D240-2S worldwide?

3G Electric supplies the LITTELFUSE SPDN-D240-2S 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 LITTELFUSE SPDN-D240-2S surge protector?

Install the LITTELFUSE SPDN-D240-2S on a flat surface using the external mounting tabs. Connect line, neutral, and ground conductors per the wiring diagram on the unit. Ensure the system is de-energized before installation and that the SPD is located as close as possible to the protected panel.

Used in

Common applications for LITTELFUSE
Power electronics protection — Littelfuse PSR Series semiconductor fuses for IGBT and diode protection in variable frequency drives.
Solar photovoltaic systems — Littelfuse SPF Series fast-acting fuses for string overcurrent protection in PV arrays.
Automotive electrical systems — Littelfuse MIDI® 498 Series bolt-on fuses for battery and alternator protection in vehicles.
Industrial control panels — Littelfuse KLKD Series midget fuses for branch circuit protection in control transformers and relays.
Motor control centers — Littelfuse BLF Series fast-acting fuses for short-circuit protection of motor starters and contactors.

LITTELFUSE Products

3G Electric supplies LITTELFUSE external surface-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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Compatible alternatives & equivalents

Cross-referenced by specification & description
LITTELFUSE Surge Protection Device: Single Phase, 120V AC, 1200V (L-G)/600V (N-G)/700V (L-N), 4X (MPN SPDN-D120-1P)
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SOLAHD Surge Protection Device: Single Phase, 240V AC, 2 Poles, 2 + Ground Wires, L-G/L-L/L-N/N-G (MPN STFV15024L)
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SOLAHD Surge Protection Device: Single Phase, 240V AC, 2 Poles, 2 + Ground Wires, L-G/L-L/L-N/N-G (MPN STFV15024L)
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SOLAHD Surge Protection Device: Single Phase, 240V AC, 2 Poles, 2 + Ground Wires, L-G/L-L/L-N/N-G (MPN STFV07524L)
SOLAHD Surge Protection Device: Single Phase, 240V AC, 2 Poles, 2 + Ground Wires, L-G/L-L/L-N/N-G (MPN STFV05024L)
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SOLAHD Surge Protection Device: Single Phase, 240V AC, 2 Poles, 2 + Ground Wires, L-G/L-L/L-N/N-G (MPN STFV05024L)

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