Eaton SPC150277N4P Surge Protection Device - UL 1449
Part Number: SPC150277N4P
Quick Summary
SPC150277N4P is a surge protection device for 277 V single-phase panels. It helps prevent costly downtime caused by transient surges hitting critical equipment. UL 1449 listing and a rugged NEMA 4X enclosure ensure reliable performance in harsh environments, while a 150 kAIC interrupt rating provides robust protection. Designed for installers and procurement teams, it leverages external side mounting, a Form C relay, and a 10-year warranty to deliver peace of mind, predictable maintenance, and improved uptime for industrial systems.
Product Information
Extended Description
SPC150277N4P Eaton: Surge Protection Device, SPC series, 150 kA, 277V, Single-phase, NEMA 4X, Form C relay
Product Name
Eaton SPC series surge protection device
Catalog Number
SPC150277N4P
UPC
786680218859
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
Form C relay
Voltage rating
277 V
Enclosure
NEMA 4X
Phase
Single-phase
Mounting Method
External side
Interrupt rating
150 kAIC
Series
SPC
The SPC150277N4P combines a high-energy surge protection capability with a compact footprint, delivering a clear business impact: reduced downtime and extended equipment life in 277 V single-phase networks. In practice, engineers install it in external side mount locations near switchgear to simplify wiring and quick replacement, minimizing installation time and labor costs. This device’s 150 kAIC interrupt rating translates to superior protection during high-energy events, lowering the risk of downstream damage and costly outages. The Form C relay provides signaling options for system alarms and remote monitoring, enabling proactive maintenance and faster fault resolution. Its NEMA 4X enclosure and UL 1449 listing ensure compliance with industry standards while maintaining reliability in washdown or dusty environments. A 10-year warranty supports total cost of ownership by reducing spare parts and service frequencies. Compatibility with standard electrical cabinets and panels helps streamline procurement and installation across facilities, data centers, and manufacturing lines. This SPD also mitigates nuisance trips and equipment wear by providing consistent clamping performance across a wide operating range, supporting longer service life for drives, PLCs, and control electronics. Industry practitioners appreciate the balance of protection, ease of installation, and documented performance, making SPC150277N4P a practical choice for modernization projects and new builds alike.
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FAQs
For 277 V single-phase systems, install the SPC150277N4P in an accessible location with external side mounting to simplify wiring and replacement. Ensure clearance for the 5.5 in depth and 6 in height, and follow UL 1449 listing requirements. Use proper enclosure sealing for a NEMA 4X environment and utilize the Form C relay connections for signaling users or control systems.
The SPC150277N4P provides surge protection by clamping transient overvoltages to protect downstream equipment. It has a 150 kAIC interrupt rating, enabling it to absorb high-energy events typical in industrial facilities. The device is rated for 277 V single-phase operation and includes a Form C relay for alarm or status signaling, improving fault visibility and response times.
Yes. The SPC150277N4P is designed for a NEMA 4X enclosure, offering protection in harsh environments. Its external side mounting facilitates straightforward installation and easier future maintenance, reducing commissioning time and potential wiring errors. This compatibility makes it suitable for outdoor-rated panels and washdown areas commonly found in industrial facilities.
The SPC150277N4P is UL 1449 listed, indicating compliance with surge protection performance standards. Its NEMA 4X enclosure provides environmental protection for demanding settings. Adopting this device supports regulatory and safety compliance while giving maintenance teams clear expectations for protection levels, longevity, and service intervals, backed by a 10-year warranty.
Investing in the SPC150277N4P yields ROI through reduced downtime, fewer surge-related failures, and longer equipment life for critical loads. The 10-year warranty lowers maintenance costs, while UL 1449 certification and NEMA 4X sealing reduce replacement and service frequency. Plan for periodic visual inspections and signaling checks via the Form C relay to sustain reliability.