Eaton SPC100277N4P Surge Protection Device - UL 1449
Part Number: SPC100277N4P
Quick Summary
The Eaton SPC100277N4P surge protection device protects electrical systems from transient spikes in industrial panels. Lack of reliable surge protection leads to nuisance trips, equipment downtime, and costly warranty claims. UL 1449 listed with a NEMA 4X enclosure makes it suitable for harsh environments and outdoor-rated installations. Designed for external mounting in industrial control panels, it offers quick field wiring and reliability under harsh conditions. It carries a 100 kAIC interrupt rating and a 10-year warranty, underscoring its long-term reliability in critical applications. For engineers focused on maintenance budgets, its straightforward installation and external side mounting streamline retrofits and service intervals. Designed for external mounting in industrial control panels, it offers quick field wiring and reliability under harsh conditions. It carries a 100 kAIC interrupt rating and a 10-year warranty, underscoring its long-term reliability in critical applications. For engineers focused on maintenance budgets, its straightforward installation and external side mounting streamline retrofits and service intervals.
Product Information
Extended Description
SPC100277N4P Eaton: Surge Protection Device, SPC series, 100 kA, 277V, Single-phase, NEMA 4X, Form C relay
Product Name
Eaton SPC series surge protection device
Catalog Number
SPC100277N4P
UPC
786680213502
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
100 kAIC
Series
SPC
The SPC100277N4P is a 277 V single-phase surge protection device designed to guard critical loads from transient spikes. This delivers robust surge suppression, reducing the risk of nuisance trips and equipment damage in automation panels. In practice, it supports motors, drives, and control circuits by maintaining clean voltage profiles and protecting sensitive electronics during storms or switching events. Enclosure and environmental resilience are next-level differentiators. The NEMA 4X housing tolerates washdowns, dust, and moisture, enabling reliable operation in outdoor enclosures, damp plant rooms, and harsh production areas. This level of enclosure protection translates to lower maintenance cycles and fewer panel door openings, while UL 1449 certification provides confidence in surge mitigation performance across evolving industrial standards. Design emphasizes thermal stability across ambient ranges, so performance remains consistent from cold starts to hot runs in 40°C environments. Form C relay functionality enables signaling for remote monitoring and interlock logic. This is a practical bridge to PLCs and BMS, allowing alarms or trips to trigger automatic protective actions. The combination of a clear fault indicator and remote signaling reduces troubleshooting time and speeds response in high-demand systems such as conveyors, packaging lines, and robotic cells. Installation and retrofit advantages are tangible. External side mounting simplifies field wiring and minimizes panel intrusion, making it easier to upgrade existing equipment without reworking interior spaces. The 5.5 in depth, 6 in height, and 3.19 in width footprint help optimize panel space, while the 2.5 lb weight keeps handling practical during site installs and replacements. Long-term reliability and total cost of ownership are supported by a 10-year warranty and industry-standard compliance. The 100 kAIC interrupt rating protects downstream loads from severe surge events, reducing spare parts and downtime. For OEMs and integrators, the external mounting approach accelerates commissioning and enables scalable protection across multiple lines without bespoke wiring.
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FAQs
Install SPC100277N4P using its external side mounting in the 277 V single-phase panel. Route Line and Load leads per the Eaton datasheet, secure all connections inside the NEMA 4X enclosure, and verify grounding. With a 100 kAIC interrupt rating, it withstands major surges, and the Form C relay provides fault signaling to a PLC or BMS for rapid response.
Core specifications include a 277 V voltage rating, single-phase configuration, 100 kAIC interrupt rating, UL 1449 listing, and a NEMA 4X enclosure, plus a Form C relay for signaling. These features deliver robust transient suppression, reliable fault reporting, and suitability across industrial panels, outdoor equipment, and control cabinets. The combination supports rapid fault isolation and improved uptime in critical processes.
Yes. The NEMA 4X enclosure provides protection against dust, water spray, and harsh washdowns, making it suitable for outdoor setups, damp plant rooms, and rugged industrial locations. UL 1449 listing confirms compliance, while the 277 V single-phase design aligns with common outdoor electrical shows. External side mounting minimizes interior panel work during installation.
SPC100277N4P is UL 1449 listed and features a NEMA 4X enclosure, with a 277 V single-phase rating. The UL listing verifies surge suppression performance for transient events, while the NEMA 4X rating ensures enclosure integrity in washdown and dusty environments. The device’s Form C relay adds signaling compatibility for safety interlocks and monitoring.
Maintenance is minimal thanks to a durable 10-year warranty and UL-approved design. The 100 kAIC surge rating reduces downstream failures, lowering downtime and repair costs. For retrofit projects, external side mounting speeds installation, reduces wiring complexity, and shortens commissioning time, delivering a favorable total cost of ownership for automation teams and plant operations.