Eaton SPM120240H4R Surge Protection Device - UL 1449
Part Number: SPM120240H4R
Quick Summary
The Eaton SPM120240H4R surge protection device provides robust transient protection for critical electrical distributions in industrial facilities. When surges or outages strike, equipment downtime and costly repairs can escalate quickly, affecting production schedules and maintenance budgets. This model carries UL 1449 certification and a NEMA 4 enclosure, with an internal circuit breaker for easier field maintenance, plus compatibility with Eaton’s Power Xpert SPD family. The combination of reliable protection, environmental resilience, and straightforward installation translates to lower total cost of ownership and improved power quality across mission‑critical processes. In short, you gain predictable performance and safer, more compliant electrical protection for your plant assets.
Product Information
Extended Description
SPM120240H4R Eaton: Eaton SPD Max series surge protection device, SPD Max Series, 120 kA per phase, 240 Delta High Leg (4W + G) on 'B' Phase, Power Xpert SPD, NEMA 4 with internal circuit breaker
Product Name
Eaton SPD MAX series surge protection device
Catalog Number
SPM120240H4R
UPC
786689409449
Product Length/Depth
9.5 in
Product Height
17.05 in
Product Width
15 in
Product Weight
52 lb
Certifications
UL 1449
Voltage rating
240V high-leg delta (4W+G) on B phase
Surge current
120kA per phase
The SPM120240H4R integrates 120 kA per phase surge capability, delivering fast transpient suppression that minimizes damage to sensitive equipment and reduces unplanned downtime. This direct protection translates to measurable uptime gains and longer service intervals for motors, drives, and control panels, which is critical in high‑throughput environments. Its 240V high‑leg delta (4W+G) on the B phase supports common industrial power configurations, enabling plug‑and‑play compatibility with existing panels without extensive rewiring. The NEMA 4 enclosure with an internal circuit breaker simplifies installation and ongoing maintenance, providing weather resistance for outdoor or harsh indoor locations and reducing the need for aftermarket enclosures. UL 1449 certification reinforces compliance with safety standards, while its fit‑and‑finish aligns with Power Xpert SPD ecosystems for scalable protection. This combination addresses common objections about retrofit costs and compatibility while delivering predictable protection performance. Operators will appreciate clearer maintenance planning and procurement simplicity when upgrading to the SPM series for multi‑panel protection. In practice, plant engineers can expect improved data center and equipment protection, resulting in fewer unscheduled shutdowns and lower spare parts consumption over time.
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FAQs
The SPM120240H4R is designed for 240V high‑leg delta (4W+G) configurations, supporting typical industrial panels and distribution boards. When installing, ensure adequate enclosure space, proper clearance for cooling, and correct wiring to the B phase as specified. The device’s 9.5 in depth and 15 in width fit common enclosure footprints, and the internal circuit breaker simplifies future maintenance without requiring external accessories.
Key specs include a 120 kA per phase surge current rating, 240V high‑leg delta (4W+G) on the B phase, UL 1449 certification, and a NEMA 4 enclosure with an internal circuit breaker. It weighs about 52 lb and has dimensions of 9.5 in depth, 17.05 in height, and 15 in width, making it suitable for unitized protection in protected or outdoor installations.
Yes. The SPM120240H4R is housed in a NEMA 4 enclosure, which provides weather‑resistant protection for outdoor or harsh indoor settings. The internal circuit breaker further enhances serviceability, allowing safe isolation during preventive maintenance while keeping the surge protection readily accessible in exposed environments.
Deploying the SPM120240H4R reduces transient damage to motors, drives, and control electronics, cutting unplanned downtime and repair costs. Its high surge rating and UL 1449 certification support compliant installations, while the integrated circuit breaker and rugged enclosure streamline maintenance and reduce total cost of ownership over the device lifecycle.
You can access Eaton’s official specification sheet for SPM120240H4R from the product page’s downloads section, which provides detailed installation guidelines, electrical ratings, and wiring diagrams to support proper deployment and compliance.