Circuit Breakers with Surge Protection(Surge Protector Breaker)
Surge Protector Breaker is a modular DIN rail SPD designed for TT, IT, TN-S, TN-C, and TN-C-S power systems (230/400V AC, 50/60Hz), compliant with IEC61643-1. It features 80kA max lightning surge discharge capacity, a sealed structure to prevent arc leakage, and fast response (<100ns), ensuring reliable protection for building low-voltage distribution boxes.
Surge Protection Device SPD YCS7N
YCS7N Surge Protection Device is a modular DIN rail SPD designed for surge protection in TT, IT, TN-S, TN-C and TN-C-S power systems with rated voltage up to 230/400V AC 50/60Hz, compliant with IEC61643-1, suitable for installation in building incoming low-voltage distribution boxes.
Poles: 1P/2P/3P/4P
Rated Current: 12.5kA-80kA (8/20us)
Rated Voltage (Ue): 230/400V AC
Rated Frequency: 50/60Hz
Breaking Capacity: 80kA (10/350us)
Installation: 35mm DIN rail
Function: Lightning surge current discharge, power grid protection
About CNC Electric
CNC Electric was founded in 1988 with the launch of our inaugural molded case circuit breakers — marking the beginning of our journey in power solutions. With a focus on product development and manufacturing, we reorganized into a corporate group by 1995 and introduced our first full low-voltage series, earning a reputation for rugged reliability.
Many of our products are CE, TUV, and RoHS certified, ensuring reliability and compliance. We focus on both efficient production and environmental responsibility, integrating sustainable practices into our processes.
Solution
We provide our customer with profitable growth by offering integrated comprehensive electrical solution.
Bulk Wholesale
Global supply chain support with competitive pricing for large quantity orders. Dedicated account managers and flexible delivery terms.
WhatsApp: +8618958711903 E-mail: [email protected]OEM Partnership
Custom manufacturing solutions tailored to your brand requirements with strict quality control and confidential production.
Dealer Network
Join our global dealer program with exclusive territories, marketing support, and technical training resources.
FAQ
Is there a circuit breaker with surge protection?
Yes, there are circuit breakers with built-in surge protection (e.g., RCBOs or surge-protected MCBs) that combine overcurrent/short-circuit protection and surge suppression.
Do surge protector breakers work?
Yes, surge protector breakers work by detecting voltage spikes and diverting excess current to ground, protecting connected devices from damage.
What is the 80% rule for circuit breakers?
The 80% rule states electrical loads should not exceed 80% of a breaker’s rated current (e.g., a 20A breaker should handle ≤16A) to prevent overheating.
What should never be plugged into a surge protector?
High-power appliances like refrigerators, microwaves, air conditioners, and space heaters should never be plugged into surge protectors due to high starting currents.
What does a surge protector breaker do?
A surge protector breaker combines overcurrent/short-circuit protection with surge suppression, safeguarding circuits and devices from both overloads and voltage spikes.
Which is better, a surge protector or a circuit breaker?
They serve different purposes: circuit breakers prevent overloads/short circuits, while surge protectors block voltage spikes—use both for full protection.
What breaker to use for surge protector?
Use a standard circuit breaker with an amperage rating matching the surge protector’s (e.g., 15A or 20A) to ensure compatibility and safety.
Will a surge protector stop a breaker from tripping?
No, surge protectors do not stop breakers from tripping—breakers trip due to overloads/short circuits, while surge protectors handle voltage spikes independently.
Do you support OEM/ODM services?
Yes, we offer OEM/ODM customization for contactors, including branding, specifications, and design tailored to client needs.
What is the lead time for contactor orders?
Lead time varies by region and order volume; contact our team for a detailed quote based on your location.
How to find local contactor distributors?
Please reach out to our sales team via [Email:[email protected]/WhatsApp:+86 18958711903] for authorized distributor information in your region.
Projects
Solutions
Services
News
About Us



