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MERSEN Surge Protection Device: Single Phase, 240/480V AC, 2 Poles, 3 Wires, L-L/L-N - DIN Rail Internal-Mount SPDs
MERSENDIN Rail Internal-Mount SPDs

MERSEN Surge Protection Device: Single Phase, 240/480V AC, 2 Poles, 3 Wires, L-L/L-N

The MERSEN STP480S07 is a single-phase DIN Rail internal-mount surge protection device (SPD) with a voltage rating of 240/480V AC and a max. continuing operating voltage of 275/550 V AC. It provides L-N mode…

SKU 3G-OTH-22697

Brand
MERSEN
Item
Surge Protection Device: Single Phase, 240/480V AC, 2 Poles, 3 Wires, L-L/L-N
Category
DIN Rail Internal-Mount SPDs
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Technical Specifications

MERSEN
Manufacturer Part Number
STP480S07
Type
L-L/L-N
AC
240/480V
Poles
2
Wires
3
Voltage
240/480V AC
Filtering
No
Mounting Style
DIN-Rail
Number of Wires
3 Wires
Enclosure Material
Polyethylene Terephthalate
Modes of Protection
L-N
Voltage Protection Rating
600V (L-N)
Short Circuit Current Rating
200kA
Max. Continuing Operating Voltage
275/550 V AC
View Full Spec Sheet

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

Product Description

The MERSEN STP480S07 is a single-phase DIN Rail internal-mount surge protection device (SPD) with a voltage rating of 240/480V AC and a max. continuing operating voltage of 275/550 V AC. It provides L-N mode protection with a voltage protection rating of 600V (L-N) and a short circuit current rating of 200kA. The unit features a polyethylene terephthalate enclosure and is configured for 3-wire, 2-pole operation.

Frequently Asked Questions

What is the MERSEN STP480S07 surge protection device used for?

The MERSEN STP480S07 is a single-phase DIN Rail internal-mount SPD that protects electrical equipment from transient overvoltages and surges. It is commonly used in industrial control panels, distribution boards, and commercial facilities to safeguard sensitive electronics against lightning-induced surges and switching transients.

What are the specifications of the MERSEN STP480S07?

The MERSEN STP480S07 is rated for 240/480V AC, 2 poles, 3 wires, with L-N protection mode. It has a max. continuing operating voltage of 275/550 V AC, voltage protection rating of 600V (L-N), and short circuit current rating of 200kA. The enclosure is polyethylene terephthalate, and it is DIN Rail mountable.

Where to buy the MERSEN STP480S07 worldwide?

You can source the MERSEN STP480S07 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 industrial buyers internationally.

How to install the MERSEN STP480S07 on a DIN rail?

To install the MERSEN STP480S07, snap the SPD onto a standard DIN rail in your panel. Ensure the system is de-energized. Connect the line and neutral conductors to the appropriate terminals per the L-N protection mode. Verify the max. continuing operating voltage (275/550 V AC) matches your system. Follow local electrical codes and manufacturer guidelines.

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 din rail internal-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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MERSEN Surge Protection Device: Three Phase, 240V AC Delta, 3 Poles, 4 Wires, L-G/L-L, 275/550 V AC (MPN STP240D07). Key specifications — Voltage: 240V AC Delta; Number of Wires: 4 Wires; Modes of Protection: L-L; Max. Continuing Operating Voltage: 275/550 V AC; Voltage Protection Rating: 900V (L-G); Short Circuit Current Rating: 200kA; Filtering: No; Enclosure Material: Polyethylene Terephthalate.
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MERSEN Surge Protection Device: Three Phase, 240V AC Delta, 3 Poles, 4 Wires, L-G/L-L, 275/550 V AC (MPN STP240D07). Key specifications — Voltage: 240V AC Delta; Number of Wires: 4 Wires; Modes of Protection: L-L; Max. Continuing Operating Voltage: 275/550 V AC; Voltage Protection Rating: 900V (L-G); Short Circuit Current Rating: 200kA; Filtering: No; Enclosure Material: Polyethylene Terephthalate.