Eaton SPC150277N5P Surge Protection Device - UL 1449
Part Number: SPC150277N5P
Quick Summary
The Eaton SPC150277N5P surge protection device protects electrical systems from transient surges in industrial power panels. For engineers balancing protection with cost, the challenge is delivering reliable SPD performance without sacrificing space or ease of installation. Two standout standards reinforce its reliability: UL 1449 listing and a rugged NEMA 4X enclosure, ensuring performance in harsh environments. By integrating audible alert and a Form C relay, this unit provides immediate fault indication and control options, while its single-phase, 277 V rating aligns with common plant and panelboard architectures. This combination delivers not only protection but also operational value, reducing downtime and facilitating compliant, maintainable electrical infrastructure.
Product Information
Extended Description
SPC150277N5P Eaton: Surge Protection Device, SPC series, 150 kA, 277V, Single-phase, NEMA 4X, Audible alarm and Form C relay
Product Name
Eaton SPC series surge protection device
Catalog Number
SPC150277N5P
UPC
786680218866
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
Audible alarm & Form C relay
Voltage rating
277 V
Enclosure
NEMA 4X
Phase
Single-phase
Mounting Method
External side
Interrupt rating
150 kAIC
Series
SPC
Feature → Business Impact → Application: 277 V single-phase rating aligns with common facility power systems, delivering targeted protection where most surges occur, reducing device failure rates and extending equipment life in manufacturing lines and data centers. Application: install on panel boards feeding motors and controllers to minimize nuisance tripping and downtime while preserving critical loads. Feature → 150 kAIC interrupt rating provides robust surge handling to withstand high-energy events, leading to lower replacement costs and fewer service calls. Application: data-rich environments and heavy machinery where surge events are frequent. Feature → NEMA 4X enclosure resists moisture, dust, and corrosion, enabling dependable outdoor or wash-down installations; Business Impact: lower maintenance frequency and longer service life. Application: outdoor substations, process areas, and rugged industrial floors. Feature → Audible alarm and Form C relay offer immediate fault signaling and remote interlock options; Business Impact: faster response times, improved safety, and easier integration with building management systems. Application: automated shutdowns or alarms tied to surge events in control rooms. Feature → External mounting method simplifies retrofit and upgrades; Business Impact: reduces installation time, minimizes panel alterations, and preserves enclosure integrity. Application: upgrading existing SPC series deployments with minimal downtime. Industry insight: SPC series devices are designed for reliable protection in harsh industrial environments, supporting uptime-focused maintenance strategies and compliant electrical design.
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FAQs
External side mounting simplifies retrofits by allowing the SPD to be mounted on the panel exterior or near the distribution point without reconfiguring the interior. Ensure adequate clearance for the audible alarm and relay wiring, follow proper wiring practices for 277 V single-phase systems, and verify a secure, weather-protected connection to minimize vibration and corrosion risk.
The 150 kAIC rating indicates the device can safely interrupt very high-energy surge events without failure, protecting connected equipment and reducing the likelihood of damaging transient events cascading into costly downtime. This rating is particularly important in industries with large motor loads or frequent external surges, providing a robust safety margin.
Yes. The SPC150277N5P is housed in a NEMA 4X enclosure designed for damp, dusty, and wash-down environments, making it suitable for industrial plants and outdoor installations. It includes an audible alarm and a Form C relay to provide immediate fault indication and remote control options for safety-critical applications.
The unit is UL 1449 listed, confirming conformance to recognized surge protection safety standards, which helps with regulatory compliance and customer acceptance. While other certifications may vary by region, UL 1449 is a widely respected baseline for SPD safety and reliability in industrial electrical systems.
Using the SPC150277N5P can lower maintenance costs by reducing surge-related equipment failures and downtime, extending the life of protected assets, and simplifying diagnostics through audible alarms and a relay signal. The long 10-year warranty also lowers lifecycle replacement risk, contributing to a favorable return on investment for mission-critical applications.