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Eaton Type CL Surge Protective Device 18kA Plug-On with L-N/L-L Protection
Professional surge protection for electrical panel applications
The Eaton Type CL Surge Protective Device delivers reliable surge protection with 18kA surge current capacity and comprehensive L-N/L-L protection. This plug-on design provides convenient installation in electrical panels while offering 10kA short circuit rating and 150V L-N/300V L-L maximum continuous operating voltage for versatile commercial and residential applications.
Professional Features & Benefits
- 18kA Surge Current Capacity: Handles high-energy transients to protect downstream equipment and circuits from voltage spikes.
- Comprehensive L-N/L-L Protection: Safeguards both line-to-neutral and line-to-line configurations for complete system coverage.
- 10kA Short Circuit Rating: Provides reliable fault protection with 10kAIC interrupt rating for enhanced electrical safety.
- Plug-On Design: Enables quick and secure installation directly into compatible electrical panels without additional mounting hardware.
- 150V L-N/300V L-L Operating Voltage: Accommodates standard residential and light commercial voltage systems with reliable continuous operation.
- 50/60Hz Frequency Rating: Compatible with standard North American electrical systems for broad application versatility.
- 3kA Nominal Discharge Current: Efficiently diverts surge energy while maintaining system integrity and protection reliability.
Technical Specifications
- Frequency Rating: 50/60 Hz
- Interrupt Rating: 10 kAIC
- Maximum Continuous Operating Voltage: 150 V L-N, 300 V L-L
- Nominal Discharge Current: 3 kA
- Protection: L-N, L-L
- Short Circuit Rating: 10 kA
- Surge Current: 18 kA
Professional Applications
- Residential electrical panels and service entrances
- Commercial facility power distribution
- Multi-unit residential properties
- Professional office buildings
- Retail and light industrial facilities
- Critical equipment protection systems
- Sensitive electronic load protection
Why Choose Eaton Quality?
Eaton surge protective devices deliver proven reliability with robust 10kA short circuit rating and comprehensive protection capabilities. The plug-on design ensures professional installation while maintaining long-term performance in demanding electrical environments.
Manufacturer Resources
Product Specs
- Frequency Rating:
- 50/60 Hz
- Interrupt Rating:
- 10 kAIC
- Maximum Continuous Operating Voltage:
- 150 V L-N, 300 V L-L
- Nominal Discharge Current:
- 3 kA
- Protection:
- L-N, L-L
- Short Circuit Rating:
- 10 kA
- Surge Current:
- 18 kA
- Department:
- Electrical
- Product Group:
- Circuit Protection
- Product Type:
- Surge Protective Device
- Product Subgroup:
- Surge Protection
Eaton CHNSURGE – Frequently Asked Questions
1) Will the Eaton CHNSURGE plug-on surge protector fit a Cutler-Hammer BR load center?
Match the device to the panel bus. The Eaton plug-on surge protective device is sold by panel type: CHNSURGE and CHPSURGE for Type CH panels, and CLNSURGE for Type BR. They are not interchangeable, because a plug-on device seats on the panel's breaker bus the same way a branch breaker does. Confirm which bus your load center uses before ordering, then pick the matching part number.
2) Can I install this Eaton surge protective device on a 208Y/120V three phase panel?
The rating that decides it is the maximum continuous operating voltage: 150 V line-to-neutral and 300 V line-to-line. A 208Y/120V wye system runs 120 V L-N and 208 V L-L, so both legs sit inside that window, as does standard 120/240V single phase. Anything above those numbers, such as a 277/480V system, is outside what this device is rated for and you need a different SPD.
3) Does this Eaton panel surge protector protect line-to-line as well as line-to-neutral?
Both modes are covered. The device protects L-N and L-L, so a transient riding between the two hot legs of a 120/240V service gets clamped, not just one leg to neutral. That matters for 240V loads like well pumps, rooftop condensing units, and range circuits, which see the L-L transient directly.
4) What surge rating does the Eaton plug-on SPD have, and is it enough for a whole house or a small commercial panel?
18 kA of surge current capacity with a 3 kA nominal discharge current. The surge current figure is the one-shot capacity for a high-energy transient; the nominal discharge current is what it handles repeatedly without degrading. Together that is a service-entrance or main-panel class device for residential and light commercial distribution, the kind of protection you install at the panel to knock down transients before they reach downstream equipment.
5) Does the Eaton SPD need its own breaker, or does it wire straight into the panel?
It plugs directly onto the bus, no separate mounting hardware and no additional enclosure. Because it seats like a breaker, it occupies breaker spaces in the load center, so check that you have adjacent open positions before you go out to the job. Field wiring is the neutral and ground leads back to the bars.
6) What short circuit current rating does this Eaton surge protective device carry?
10 kA short circuit current rating, with a 10 kAIC interrupt rating. On a panel fed from a service with available fault current above 10 kA, that SCCR is the limiting number, so verify the available fault current at the panel before specifying it. Most residential and light commercial services fall under it.
7) Is the Eaton CHNSURGE the same thing as a point-of-use surge strip for computers and TVs?
No, and the two do different jobs. A plug-on panel SPD sits at the load center and clamps transients entering the building on the service conductors, protecting every circuit downstream at once, including hardwired loads like HVAC, well pumps, and appliances that never touch a receptacle. It does not replace point-of-use protection at sensitive electronics; layered protection is normal practice, with the panel device taking the large transient and the local strip handling what gets past it.
8) I manage several buildings with a mix of Eaton panels. Can I standardize on one surge device part number?
Not on one number, but on one family. The Eaton plug-on SPD covers Type CH panels with CHNSURGE and CHPSURGE and Type BR panels with CLNSURGE, all sharing the same 18 kA surge current, 3 kA nominal discharge current, 10 kA short circuit rating, and 150 V L-N / 300 V L-L operating voltage. So the protection level is identical across your portfolio; the only thing that changes site to site is which part number matches that building's bus.
9) Will the Eaton plug-on surge protector work on 50 Hz power for an export or generator-fed job?
Rated 50/60 Hz, so it works on either frequency, including 50 Hz systems and generator-supplied power at that frequency. The voltage limits still govern: 150 V L-N and 300 V L-L maximum continuous operating voltage.
How fast can I get the Eaton CHNSURGE delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Eaton CHNSURGE come with a warranty?
Absolutely. The Eaton CHNSURGE is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Eaton CHNSURGE?
You can call, text, or email our expert support team for fast answers. We’re here to help with
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selection,
installation tips, and troubleshooting. Contact Us
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