Eaton SPC150277N7P Surge Protection Device - UL 1449
Part Number: SPC150277N7P
Quick Summary
The Eaton SPC150277N7P surge protection device protects critical equipment in industrial panels by suppressing voltage spikes. Engineers often battle nuisance tripping, cramped enclosures, and compatibility issues as they retrofit older systems. This model carries UL 1449 certification and uses a rugged NEMA 4X enclosure, making it suitable for challenging environments, while delivering a 150 kAIC interrupt rating for peak protection. With external side mounting, built-in filtering, and a Form C relay, it simplifies diagnostics and signaling to control systems. The combination of reliability, long warranty, and straightforward installation helps buyers reduce downtime and safeguard drives, motors, and controllers across automation projects.
Product Information
Extended Description
SPC150277N7P Eaton: Surge Protection Device, SPC series, 150 kA, 277V, Single-phase, NEMA 4X, Filtering and Form C relay
Product Name
Eaton SPC series surge protection device
Catalog Number
SPC150277N7P
UPC
786680219054
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 & Form C relay
Voltage rating
277 V
Enclosure
NEMA 4X
Phase
Single-phase
Mounting Method
External side
Interrupt rating
150 kAIC
Series
SPC
The SPC150277N7P delivers 277 V single‑phase protection, aligned with common industrial panels, to shield downstream drives, PLCs, and sensors from transient events. The 150 kAIC interrupt rating translates to robust surge handling, reducing the likelihood of downstream component damage and the need for frequent replacements; this elevates line reliability and lowers maintenance costs in automated production lines. Its NEMA 4X enclosure provides environmental protection for indoor and select outdoor installations, enabling safe operation in dusty, damp, or washdown environments. Filtering and Form C relay deliver both electrical cleanliness and signaling capabilities, allowing easier integration with plant monitoring systems and fault-logging workflows. External side mounting simplifies retrofit work, shortens commissioning times, and improves serviceability while supporting a compact panel footprint.
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FAQs
The SPC150277N7P is designed for 277 V single-phase circuits used in industrial panels. It provides robust transient suppression, maintains downstream voltage within safe limits, and supports easy integration with standard control gear, including drives and PLCs. Its external side mounting simplifies retrofits in existing enclosures, minimizing panel downtime during installation.
This device delivers surge protection with a 150 kAIC interrupt rating and 277 V operation, along with built‑in filtering to reduce high-frequency noise. The Form C relay offers signaling capability for remote monitoring, enabling proactive maintenance and quick fault indication. Together, these features help protect motors, drives, and sensors from spikes while preserving control system integrity.
Yes. The SPC150277N7P uses a NEMA 4X enclosure, providing protection against water, dust, and corrosion in challenging environments. UL 1449 certification further verifies its performance under transient conditions. While appropriate for harsh factory areas, follow installation guidelines to ensure proper sealing and venting for your specific site conditions.
Key standards include UL 1449 certification for protective performance against transients and a NEMA 4X enclosure rating for environmental protection. The device is designed to meet rigorous industrial requirements, and Eaton backs it with a 10‑year warranty, reflecting confidence in long-term reliability and reduced lifecycle costs for automation projects.
By limiting transient damage and reducing nuisance trips, the SPC150277N7P lowers unplanned downtime and maintenance costs in automation lines. The 10‑year warranty extends asset life, while the Form C signaling supports proactive monitoring. Combined with straightforward external side mounting, installation and retrofit timelines shorten, delivering quicker project payback and predictable operating expenses.