Eaton SPC120277N1P Surge Protection Device - UL 1449
Part Number: SPC120277N1P
Quick Summary
The Eaton SPC120277N1P surge protection device delivers reliable transient suppression for 277 V single‑phase power in commercial and industrial settings. Engineers often wrestle with unplanned outages and equipment wear from voltage spikes; this SPD delivers fast response and rugged construction to minimize damage and downtime. UL 1449 listed with a NEMA 4X enclosure, plus a 10-year warranty and robust surge capacity, provides regulatory confidence and long-term asset protection. By integrating seamlessly into control panels and downstream gear, it helps facilities achieve higher uptime while reducing maintenance costs. In short, it supports reliability, compliance, and total cost of ownership for panel builders and OEMs.
Product Information
Extended Description
SPC120277N1P Eaton: Surge Protection Device, SPC series, 120 kA, 277V, Single-phase, NEMA 4X, Standard configuration
Product Name
Eaton SPC series surge protection device
Catalog Number
SPC120277N1P
UPC
786680218125
Product Length/Depth
5.5 in
Product Height
6 in
Product Width
3.19 in
Product Weight
2.5 lb
Warranty
10 year
Certifications
UL 1449
Type
Surge protection device
Special features
Standard configuration
Voltage rating
277 V
Enclosure
NEMA 4X
Phase
Single-phase
Mounting Method
External side
Interrupt rating
120 kAIC
Series
SPC
Feature: 120 kAIC interrupt rating. Business Impact: higher surge tolerance reduces downstream damage and unplanned downtime. Application: ideal for 277 V single-phase circuits in industrial panels and control gear. Feature: NEMA 4X enclosure and rugged construction. Business Impact: weatherproof and washdown-ready protection lowers environmental risk. Application: outdoor installations and damp environments across facilities. Feature: External side mounting. Business Impact: simplifies retrofit and panel installation, cutting integration time. Application: upgrade projects within existing electrical rooms. Feature: UL 1449 listing. Business Impact: regulatory compliance and safer operation, reducing audit findings. Application: panel boards, switchgear, MCCs in manufacturing and data centers. Feature: 277 V rating and SPC series compatibility. Business Impact: aligns with standard electrical distributions for predictable performance. Application: new builds and replacements in commercial and industrial settings, with a 10-year warranty enhancing TCO.
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FAQs
Plan for external side mounting to streamline retrofit and keep clearances around the unit. The SPC120277N1P uses a compact 5.5 in length, 6 in height, and 3.19 in width footprint, weighing 2.5 lb. Ensure the enclosure remains accessible for maintenance and that the 277 V single-phase circuit configuration aligns with panel board layouts and conductor sizing requirements.
Key specs include a 120 kAIC interrupt rating for high-energy surge events, 277 V voltage rating, single-phase configuration, UL 1449 listing, and a NEMA 4X enclosure. The unit is designed for external side mounting and comes from Eaton's SPC series with standard configuration for straightforward deployment.
Yes. The SPC120277N1P is engineered for panel boards, switchgear, and motor control centers in industrial settings. Its 120 kAIC capacity and 277 V single-phase rating make it appropriate for protecting sensitive controls and drives, while the NEMA 4X enclosure supports installation in challenging environments.
The SPC120277N1P is UL 1449 listed, indicating compliance with recognized surge protection safety standards. It features a NEMA 4X enclosure for environmental protection, offering reliability in harsh environments. This combination supports regulatory approval processes and reduces risk during audits and inspections.
Expect reduced downtime and lower maintenance costs due to effective surge suppression protecting downstream equipment. The 120 kAIC rating minimizes damage from transient events, while the 10-year warranty lowers replacement and service costs over the asset life, delivering a favorable total cost of ownership for panel builders and facility managers.