Eaton SPC120277N8P Surge Protection Device - UL 1449
Part Number: SPC120277N8P
Quick Summary
The Eaton SPC120277N8P surge protection device guards 277 VAC single‑phase systems against damaging transients, making it ideal for control panels and automation enclosures. Engineers often confront unpredictable surges that trigger component wear and costly downtime. UL 1449 listed and housed in a rugged NEMA 4X enclosure deliver robust protection in harsh environments, while a 10‑year warranty reinforces long‑term reliability. With integrated filtering, alarm output, and a Form C relay, it simplifies monitoring and enables proactive maintenance, supporting compliant installations in industrial automation projects. These capabilities help manufacturers optimize downtime, improve electrical reliability, and reduce total cost of ownership in panel assemblies and machine interfaces.
Product Information
Extended Description
SPC120277N8P Eaton: Surge Protection Device, SPC series, 120 kA, 277V, Single-phase, NEMA 4X, Filtering, Alarm and Form C relay
Product Name
Eaton SPC series surge protection device
Catalog Number
SPC120277N8P
UPC
786680218361
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
Filtering, Alarm & Form C relay
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 provides high resilience against extreme surge events. Business Impact: Significantly lowers the risk of equipment damage and unplanned downtime, preserving uptime for critical processes. Application: Ideal for motor drives, PLC inputs, and transformer-fed loads in automated lines. Long-tail keywords: 120 kAIC surge protection, industrial surge protection device, robust surge protection for panels. Feature: 277 V voltage rating designed for North American 277 VAC networks. Business Impact: Ensures compatible protection for lighting, controls, and automation circuits without overengineering. Application: Standard in US/Canada industrial facilities. Long-tail keywords: 277 V surge protector, 277 VAC protection device, control panel protection. Feature: NEMA 4X enclosure for outdoor and harsh indoor environments. Business Impact: Durable protection against dust, moisture, and corrosion, reducing enclosure integrity concerns. Application: Outdoor switchgear and damp environments. Long-tail keywords: NEMA 4X enclosure, weatherproof surge protector, rugged installation. Feature: Filtering, alarm, and Form C relay provide clear signaling and reduced maintenance overhead. Business Impact: Enables remote monitoring, fault notification, and automated responses, cutting diagnostic time. Application: Industrial panels, machine control rooms. Long-tail keywords: alarm relay, Form C relay, remote monitoring surge protector. Feature: External side mounting offers flexible integration with existing panel layouts. Business Impact: Simplifies retrofits and minimizes wiring changes, accelerating deployment. Application: Retrofit projects in legacy control systems. Long-tail keywords: external side mounting, panel retrofit, easy installation. Feature: UL 1449 listing and 10‑year warranty provide regulatory confidence and long‑term support. Business Impact: Streamlined compliance documentation and predictable total cost of ownership. Application: Quality compliance programs in manufacturing. Long-tail keywords: UL 1449 listed, 10 year warranty, regulatory compliant surge protection.
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FAQs
Install the SPC120277N8P on an external side mounting location within a suitable enclosure. Verify 277 V single‑phase supply, ensure proper wiring of line, load, and ground per the Eaton specification, and confirm UL 1449 compliance. Use the device’s alarm and Form C relay connections to enable remote status monitoring and fault signaling for proactive maintenance.
The device is rated for 277 V and delivers up to 120 kAIC interrupt capability, providing robust protection for lighting circuits, controls, and automation loads. Its UL 1449 listing ensures conformance to surge protection standards, while the NEMA 4X enclosure supports reliable operation in demanding environments typical of industrial facilities.
Yes. It carries UL 1449 listing for surge protection and comes in a NEMA 4X enclosure, suitable for damp or harsh environments. This combination supports compliance with industrial electrical safety practices and enables installation in both indoor and outdoor panels, reducing the need for additional protective enclosures.
The device includes an integrated alarm output and a Form C relay, enabling signal-based maintenance workflows. When a surge event or fault occurs, the relay can trigger external annunciators or control logic, facilitating rapid fault isolation, reducing mean time to repair, and supporting condition-based maintenance programs within automation systems.
By limiting surge-induced damage to sensitive electronics, the SPC120277N8P reduces downtime and extends component life, translating to lower replacement costs and fewer unplanned outages. The 10‑year warranty and UL conformity further stabilize maintenance budgeting, while easier retrofits and reliable protection support faster project completion in panel upgrades.