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NVENT ERICO Surge Protection Device: Three Phase, 277/480V, 350/700V, Polycarbonate - External Surface-Mount SPDs
NVENT ERICOExternal Surface-Mount SPDs

NVENT ERICO Surge Protection Device: Three Phase, 277/480V, 350/700V, Polycarbonate

The NVENT ERICO Surge Protection Device (SKU 812DU0, MPN SES320B480Y) is a three-phase external surface-mount SPD with a polycarbonate enclosure. It operates at 277/480V with a maximum continuing operating voltage of…

SKU 3G-OTH-21897

Brand
NVENT ERICO
Item
Surge Protection Device: Three Phase, 277/480V, 350/700V, Polycarbonate
Category
External Surface-Mount SPDs
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Technical Specifications

NVENT ERICO
Manufacturer Part Number
SES320B480Y
Type
277/480V, 350/700V, Polycarbonate, 4X, 20 kA
Voltage
277/480V
Enclosure Material
Polycarbonate
Voltage Protection Rating
1200 V (L-N)
Max. Surge Current per Mode
20 kA
Max. Continuing Operating Voltage
350/700V
View Full Spec Sheet

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

Product Description

The NVENT ERICO Surge Protection Device (SKU 812DU0, MPN SES320B480Y) is a three-phase external surface-mount SPD with a polycarbonate enclosure. It operates at 277/480V with a maximum continuing operating voltage of 350/700V and a voltage protection rating of 1200 V (L-N). The device offers a maximum surge current per mode of 20 kA.

Frequently Asked Questions

What is the NVENT ERICO SES320B480Y surge protection device used for?

The NVENT ERICO SES320B480Y is a three-phase external surface-mount SPD designed to protect industrial electrical systems from voltage surges and transients. It is commonly used in manufacturing plants, commercial buildings, and utility applications where reliable surge suppression is critical for equipment longevity.

What are the specifications of the NVENT ERICO SES320B480Y?

The NVENT ERICO SES320B480Y operates at 277/480V with a maximum continuing operating voltage of 350/700V. It has a voltage protection rating of 1200 V (L-N) and a maximum surge current per mode of 20 kA. The enclosure is made of polycarbonate, rated NEMA 4X for outdoor or harsh environments.

Where to buy the NVENT ERICO SES320B480Y worldwide?

You can source the NVENT ERICO SES320B480Y 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 NVENT ERICO surge protection devices to procurement teams globally.

How to install the NVENT ERICO SES320B480Y surge protector?

Install the NVENT ERICO SES320B480Y as an external surface-mount SPD on a three-phase 277/480V system. Follow the manufacturer's wiring diagram for L-N connections, ensuring the device is properly grounded. Use appropriate overcurrent protection upstream. For best practices, consult a licensed electrician and refer to NVENT ERICO's installation manual.

Used in

Common applications for NVENT ERICO
Industrial facility grounding — NVENT ERICO ZWP1J pipe ground clamps for bonding metallic water pipes to grounding electrodes.
Commercial building surge protection — NVENT ERICO TDX300S277/480 SPD for three-phase 277/480V AC Wye service entrance panels.
Rooftop equipment support — NVENT ERICO PSF10D fixed strut pyramids for mounting conduit or cable trays on flat roofs.
Utility substation grounding — NVENT ERICO EK16 bronze parallel burial clamps for connecting grounding conductors to rods.
Outdoor panel surge protection — NVENT ERICO SES160B480Y SPD with NEMA 4X polycarbonate enclosure for washdown environments.
Lightning protection systems — NVENT ERICO SES series SPDs for transient voltage suppression on branch circuits.

NVENT ERICO Products

3G Electric supplies NVENT ERICO 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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