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MERSEN Surge Protection Device: Three Phase, 480V AC Wye, 3 Poles, 4 Wires, L-L/L-N - DIN Rail Internal-Mount SPDs
MERSENDIN Rail Internal-Mount SPDs

MERSEN Surge Protection Device: Three Phase, 480V AC Wye, 3 Poles, 4 Wires, L-L/L-N

The MERSEN STP480Y07 is a three-phase, DIN-rail internal-mount surge protection device (SPD) for 480V AC Wye systems with 4 wires and 3 poles. It provides L-N mode protection, with a voltage protection rating of…

SKU 3G-OTH-23041

Brand
MERSEN
Item
Surge Protection Device: Three Phase, 480V AC Wye, 3 Poles, 4 Wires, L-L/L-N
Category
DIN Rail Internal-Mount SPDs
Available to Order
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Local availability & support

Delivery
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

MERSEN
Manufacturer Part Number
STP480Y07
Type
L-L/L-N
AC
320/640 V
Poles
3
Wires
4
AC Wye
480V
Voltage
480V AC Wye
Filtering
No
Mounting Style
DIN-Rail
Number of Wires
4 Wires
Enclosure Material
Polyethylene Terephthalate
Modes of Protection
L-N
Voltage Protection Rating
1500V (L-N)
Short Circuit Current Rating
200kA
Max. Continuing Operating Voltage
320/640 V AC

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

Product Description

The MERSEN STP480Y07 is a three-phase, DIN-rail internal-mount surge protection device (SPD) for 480V AC Wye systems with 4 wires and 3 poles. It provides L-N mode protection, with a voltage protection rating of 1500V (L-N), a short circuit current rating of 200kA, and a max. continuing operating voltage of 320/640 V AC. The enclosure is made of polyethylene terephthalate, and the unit has no filtering.

Frequently Asked Questions

What is the MERSEN STP480Y07 surge protection device used for?

The MERSEN STP480Y07 is a three-phase DIN-rail SPD that protects 480V AC Wye electrical systems from transient overvoltages. It is commonly installed in industrial control panels, distribution boards, and critical equipment to safeguard against lightning strikes and switching surges, ensuring reliable operation across manufacturing and process industries.

What are the specifications of the MERSEN STP480Y07?

The MERSEN STP480Y07 is a 3-pole, 4-wire SPD for 480V AC Wye systems. It offers L-N mode protection with a voltage protection rating of 1500V (L-N), a short circuit current rating of 200kA, and a max. continuing operating voltage of 320/640 V AC. The enclosure is polyethylene terephthalate, and it has no filtering.

Where to buy the MERSEN STP480Y07 worldwide?

3G Electric supplies the MERSEN STP480Y07 to customers worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this surge protection device to your facility. Contact us for a quote and lead time on this DIN-rail SPD for 480V AC Wye systems.

How to install the MERSEN STP480Y07 on a DIN rail?

To install the MERSEN STP480Y07, mount it securely on a standard DIN rail inside an electrical panel. Connect the line and neutral conductors per the L-N mode wiring diagram, ensuring the system is de-energized. Follow NEC and local codes for SPD installation, and verify the short circuit current rating matches your system.

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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Compatible alternatives & equivalents

Cross-referenced by specification & description
MERSEN Surge Protection Device: Three Phase, 480V AC Wye, 3 Poles, 4 Wires, L-L/L-N, 320/640 V AC (MPN STP480Y07M)
MERSEN
MERSEN Surge Protection Device: Three Phase, 480V AC Wye, 3 Poles, 4 Wires, L-L/L-N, 320/640 V AC (MPN STP480Y07M)
MERSEN Surge Protection Device: Three Phase, 480V AC Wye, 4 Poles, 5 Wires, L-G/L-L/L-N/N-G, 200kA (MPN STP480YN07)
MERSEN
MERSEN Surge Protection Device: Three Phase, 480V AC Wye, 4 Poles, 5 Wires, L-G/L-L/L-N/N-G, 200kA (MPN STP480YN07)
MERSEN Surge Protection Device: Three Phase, 480V AC Wye, 4 Poles, 5 Wires, L-G/L-L/L-N/N-G, 200kA (MPN STP480YN07M)
MERSEN
MERSEN Surge Protection Device: Three Phase, 480V AC Wye, 4 Poles, 5 Wires, L-G/L-L/L-N/N-G, 200kA (MPN STP480YN07M)
MERSEN Surge Protection Device: Single Phase, 240/480V AC, 2 Poles, 3 Wires, L-L/L-N, 275/550 V AC (MPN STP480S07)
MERSEN
MERSEN Surge Protection Device: Single Phase, 240/480V AC, 2 Poles, 3 Wires, L-L/L-N, 275/550 V AC (MPN STP480S07)
MERSEN Surge Protection Device: Three Phase, 480V AC Delta, 3 Poles, 4 Wires, L-G/L-L, 550/1100 V AC (MPN STP480D07)
MERSEN
MERSEN Surge Protection Device: Three Phase, 480V AC Delta, 3 Poles, 4 Wires, L-G/L-L, 550/1100 V AC (MPN STP480D07)
MERSEN Surge Protection Device: Three Phase, 480V AC Delta, 3 Poles, 4 Wires, L-G/L-L, 550/1100 V AC (MPN STP480D07M)
MERSEN
MERSEN Surge Protection Device: Three Phase, 480V AC Delta, 3 Poles, 4 Wires, L-G/L-L, 550/1100 V AC (MPN STP480D07M)

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MERSEN Surge Protection Device: Single Phase, 277V AC, 1 Poles, 2 Wires, L-N, 320 V AC, 600V (L-N) (MPN STP277P07M)
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