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NVENT ERICO Surge Protection Device: Three Phase, 277/480V AC Wye, 320/550 V AC, Metal - External Surface-Mount SPDs
NVENT ERICOExternal Surface-Mount SPDs

NVENT ERICO Surge Protection Device: Three Phase, 277/480V AC Wye, 320/550 V AC, Metal

The NVENT ERICO TDX300S277/480 is a three-phase external surface-mount surge protection device (SPD) with a metal enclosure, rated for 277/480V AC Wye systems and a maximum continuing operating voltage of 320/550 V…

SKU 3G-OTH-21705

Brand
NVENT ERICO
Item
Surge Protection Device: Three Phase, 277/480V AC Wye, 320/550 V AC, Metal
Category
External Surface-Mount SPDs
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Technical Specifications

NVENT ERICO
Manufacturer Part Number
TDX300S277/480
Type
Metal, 1, 300kA
AC
320/550 V
AC Wye
277/480V
Voltage
277/480V AC Wye
Includes
Voltage Free Contact
Enclosure Material
Metal
Voltage Protection Rating
1000V (N-G)
Max. Surge Current per Mode
300kA
Max. Continuing Operating Voltage
320/550 V AC
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NVENT ERICO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The NVENT ERICO TDX300S277/480 is a three-phase external surface-mount surge protection device (SPD) with a metal enclosure, rated for 277/480V AC Wye systems and a maximum continuing operating voltage of 320/550 V AC. It provides a voltage protection rating of 1000V (N-G) and a maximum surge current per mode of 300kA, and includes a voltage-free contact.

Frequently Asked Questions

What is the NVENT ERICO TDX300S277/480 surge protection device used for?

The NVENT ERICO TDX300S277/480 is a three-phase external surface-mount SPD designed to protect electrical equipment in industrial and commercial facilities from transient overvoltages and lightning surges on 277/480V AC Wye power systems.

What are the specifications of the NVENT ERICO TDX300S277/480?

The NVENT ERICO TDX300S277/480 is rated for 277/480V AC Wye with a max. continuing operating voltage of 320/550 V AC. It offers a voltage protection rating of 1000V (N-G), max. surge current per mode of 300kA, and includes a voltage-free contact. The enclosure is metal.

Where to buy the NVENT ERICO TDX300S277/480 worldwide?

You can source the NVENT ERICO TDX300S277/480 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.

How to install the NVENT ERICO TDX300S277/480 surge protection device?

Install the NVENT ERICO TDX300S277/480 externally on a surface near the service panel. Follow the manufacturer's wiring diagram for 277/480V AC Wye connections, ensuring the voltage-free contact is integrated into the monitoring circuit. Always de-energize the system before installation and consult a qualified electrician.

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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