Eaton CHSPT1MAX CH Plug-On Surge Protection - UL 1449
Part Number: CHSPT1MAX
Quick Summary
Eaton CHSPT1MAX surge protection device safeguards electrical systems at service entrances against surges. When transient spikes strike, downtime and equipment damage erode uptime and maintenance costs. UL 1449 listed, Type 1 protection with a rugged NEMA 4 enclosure ensures reliability in harsh environments. This device plugs onto the module for permanent mounting, simplifying wiring and reducing panel disturbance. With a 20 kA nominal discharge current and a 45 kA one-time surge rating, it offers strong protection for critical loads. Compatible with 50-60 Hz systems and single-phase circuits, CHSPT1MAX supports service entrance protection in commercial and light industrial settings while delivering peace of mind and lower total cost of ownership.
Product Information
Extended Description
CHSPT1MAX Eaton: Eaton Type CH circuit breaker surge protective device: SPD CHSP Service Entrance Surge Protection, Type 1, 45kA one time surge current rating
Product Name
Eaton Type CH plug on module surge protection device
Catalog Number
CHSPT1MAX
UPC
786685436838
Product Length/Depth
5.75 in
Product Height
3 in
Product Width
3.75 in
Product Weight
0.93 lb
Warranty
1 year
Certifications
UL 1449
Catalog Notes
20kA nominal discharge current. Has 45kA one time surge current rating.
Type
Type 1
Frequency rating
50-60 Hz
Enclosure
NEMA 4
Phase
Single-phase
Mounting Method
Permanent
Interrupt rating
200 kAIC
Operating voltage
L-L 300, L-N 150
Residential and Light Commercial, Surge Protection, Volume 1 Tab 2
Eaton Specification Sheet - CHSPT1MAX
Feature: Type 1 surge protection device with 20 kA nominal discharge current and 45 kA one-time surge rating. Business Impact: Delivers robust transient protection for critical loads, reducing unplanned downtime and extending equipment life. Application: Suitable for service entrances and main distribution panels in commercial and light industrial environments. Feature: UL 1449 listed with a durable NEMA 4 enclosure. Business Impact: Ensures compliance with safety standards while tolerating dust, water, and weather exposure in harsh environments. Application: Outdoor or rugged indoor installations where protection is required without compromising accessibility. Feature: Plug-on module design with permanent mounting. Business Impact: Simplifies installation, minimizes wiring complexity, and reduces commissioning time, lowering labor costs. Application: Quick retrofits or upgrades in existing switchgear without extensive panel modification. Feature: Operating voltage and frequency ratings (L-L 300 V, L-N 150 V; 50-60 Hz; Single-phase) and 200 kAIC interrupt rating. Business Impact: Fits common North American power systems with high fault current endurance, improving system reliability and protection coverage. Application: Service entrances and small to mid-size panels in commercial/industrial settings. Feature: Compact form factor (5.75 in L Ă— 3 in H Ă— 3.75 in W) and light weight (0.93 lb). Business Impact: Maximizes usable panel space and simplifies mounting in crowded electrical spaces. Application: Retrofit projects or new builds where space is at a premium.
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FAQs
The CHSPT1MAX is designed as a plug-on module with permanent mounting. To install, switch off power, remove access to the panel, mount the device securely inside or on the service entrance panel, connect the appropriate conductors per the enclosure and local codes, re-seal, and restore power. The unit’s compact dimensions and plug-on design minimize wiring and panel disturbance.
Key specs include a 20 kA nominal discharge current and a 45 kA one-time surge rating, Type 1 protection, and UL 1449 listing. Operating voltage is L-L 300 V and L-N 150 V with 50-60 Hz single-phase operation, plus a 200 kAIC interrupt rating, making it suitable for service entrances in typical North American systems.
Yes. CHSPT1MAX uses a NEMA 4 enclosure, providing protection against dust and water ingress for outdoor or harsh indoor environments. This enhances reliability in service entrances and other exposed locations while maintaining accessibility for maintenance.
Applications include service entrances and main distribution panels in commercial and light industrial facilities. Its Type 1 protection and high surge rating help safeguard critical loads such as lighting, controllers, and simple automation equipment, contributing to reduced downtime and smoother startup sequences.
Regular monitoring and periodic inspection per safety standards are advised, but the device’s robustness reduces frequent replacements. ROI comes from minimized downtime, extended equipment life, and lower incident-related repair costs due to improved transient protection in service entrances and main panels.