Nvent Erico 3G-OTH-21720 — Technical Specifications

Name: Nvent Erico 3G-OTH-21720 NVENT ERICO Surge Protection Device: Three Phase, 277/480V AC Wye, 320/550 V AC, Metal, 1, 400kA (MPN TDX400S277/480). Key specifications — Voltage: 277/480V AC Wye; Includes: Voltage Free Contact; Max. Continuing Operating Voltage: 320/550 V AC; Voltage Protection Rating: 1000V (N-G); Enclosure Material: Metal; Max. Surge Current per Mode: 400kA; Brand: NVENT ERICO.
Brand: Nvent Erico

The NVENT ERICO TDX400S277/480 is a three-phase external surface-mount surge protection device (SPD) with a metal enclosure. It operates at 277/480V AC Wye with a maximum continuing operating voltage of 320/550 V AC and a voltage protection rating of 1000V (N-G). This SPD includes a voltage-free contact and provides a maximum surge current per mode of 400kA.

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Technical Specifications

Parameter	Value
AC	320/550 V
Type	Metal, 1, 400kA
Brand	NVENT ERICO
AC Wye	277/480V
Voltage	277/480V AC Wye
Includes	Voltage Free Contact
Enclosure Material	Metal
Manufacturer Part Number	TDX400S277/480
Voltage Protection Rating	1000V (N-G)
Max. Surge Current Per Mode	400kA
Max. Continuing Operating Voltage	320/550 V AC