One-Stop Arc Flash Relay Distributor
Achieving Max Arc Flash Safety Through Simplicity
We offer the world’s broadest switchgear arc-flash relay portfolio, streamlining the purchasing process to ensure maximum, reliable arc-flash safety.

Simplified Sourcing & Maximum Efficiency
As your exclusive, one-stop distributor for Arc flash relays, we eliminate the need to communicate with multiple suppliers. This radically simplifies your procurement process, resulting in significant, quantifiable savings in both time and labor costs.

Extensive Product Coverage
We aggregate diverse arc flash relay product lines to provide you with a comprehensive selection. This ensures you can meet all protection requirements, from the simplest applications to the most complex and specialized demands.

Impartial Selection & Professional Technical Support
We use our deep arc flash relay expertise to give you neutral, objective advice. Our technical team recommends the highest-performing solution on the market, perfectly matched to your specific needs: budget, panel space, and speed requirements.
Types of Arc Flash Relay to Elevate Electrical Safety
Whether you need just a 1-piece order or a bulk quantity, Sell-Best delivers the best-fit arc flash realys to meet your exact specifications. Contact us today to discuss your project and find the perfect solution for your arc flash safety needs.
Blue Jay AFR Series Arc Flash Relays
- Multi-channel arc flash detection with optical fiber and current sensor
- 3, 4, 12, 36, 48-channel arc sensors
- Fast trip time within 5ms
- OEM & ODM service
AQ-102 Arc Flash Protection Device
- For medium-voltage systems, support both current and light sensing.
- Up to 12 arc light point sensors or 3 fiber optic loop sensors
- 4 trip relays with 7 ms total trip time
Littelfuse Arc Flash Relays
- Arc-flash trip time <1 ms
- 2, 4, 24 arc sensor input options
- Support fiber-optic and point arc detection sensor
- Adjustable light sensitivity
ABB Arc Fault Detection System
- Arc-flash trip time <2.5ms
- Total arc fault clearing time<50ms.
- Suitable for LV & MV air-insulated switchgear
- Support 2, 8, 30 arc flash sensors
Eaton Arc Flash Protective Relay
- Reducing the arc flash energy in LV and MV switchgears
- Max. 12-point sensors or 3-fiber loop sensors
- Current&light sensing
SEL Arc Flash Relay
- Monitor up to 8 apartments or three-phase electric panels.
- For Multi-apartments, commercial properties, RV parks, mobile homes & marinas.
NHP Arclogix Arc Flash Detection Relays
- High-accuracy detect electrical arcs in switchboards
- Continuous arc sensor self-supervision with fail alarm contact.
Tier AF 800 - Arc Flash Relay System
- For Medium-Voltage and Low-Voltage electrical systems
- Support fiber optic arc sensors and current transformers (CTs)
AP901/AP901D Arc Flash Protection Relay
- Quickly detect & clear arc flash incidents in LV & MV electrical networks like Industrial, Railway, Generation and Distribution networks.
- Max 3 fibre loop arc flash sensors.
Vamp Arc Protection Relay System
- Arc flash protection from single units to multi-zone systems
- Models available: VAMP 120, VAMP 125, VAMP 121, VAMP 221 & VAMP 321
- Fast, flexible arc mitigation
Why Choose Sell-Best Arc Flash Relays

Ultra-Fast Arch Flash Hazard Mitigation
High-speed light sensing and overcurrent protection detect arc-flash events and trip the breaker in as fast as 2/5/10 ms, minimizing exposure and damage.

Flexible & Scalable Arc Flash Protection
Offers modular arc-flash mitigation that easily scales from simple, single-panel systems to complex, multi-zone networks, ensuring safety across all demanding environments.

Extend Equipment Lifespan
By severely limiting arc energy exposure, the arc flash protection system significantly extends the life of your switchgear, delaying expensive replacements and major system upgrades.

Maximize System Uptime
High-speed detection combined with selective zone isolation keeps unaffected systems running, radically minimizing damage and operational interruptions.
Arc Flash Relay Distributor
Sell-Best is a premier distributor of arc detection relays, dedicated to providing the best customer service in the industry. We can be your trusted partner with over 10 years of continuous service to the electrical arc flash protection industry.

Turnkey Distributor
Thanks to our stable partnerships with multiple arc flash protection manufacturers, we offer highly competitive pricing and reliable product availability. This strong relationship makes us your best choice for an arc flash relay distributor. We are truly your one-stop shop for comprehensive arc flash safety solutions.

Fitting Your Needs
It starts with our extensive product line. We offer a diverse range of arc flash protection solutions, from single-zone to multi-zone.

Convenient Communication
You can directly contact our knowledgeable customer service representatives for arc protection via the contact button. They are ready to answer any questions you may have and find suitable & affordable products for you instantly.
Arc Flash Detection Relay for Your Your Industry
Arc flash protective relays are deployed across a broad spectrum of Low Voltage (LV) and Medium Voltage (MV) electrical networks, ranging from large-scale Generation and Distribution utility infrastructure (including 1kV, 33kV, and 66kV systems) to complex Industrial and Railway facilities, and Mining operations. They are essential for protecting critical, enclosed equipment such as Switchgear Cubicles, Transformer Compartments, Generator Control Panels, and Motor Control Center (MCC) Buckets. Furthermore, these systems are vital in specialized, space-constrained applications like Solar/Photovoltaic Combiner Boxes, Power Inverters, Industrial UPS units, Junction Boxes, and OEM Panels, where physical space is limited.
Arc Flash Protection for Single-Zone
To protect a single device (such as a standalone switchgear, transformer compartment, compact MCC bucket, Generator Control Panel, Solar Combiner Boxes / Photovoltaic Combiner Boxes, power inverters, industrial UPS, Junction boxes, etc), it is typically covered by only a single relay and a set of light sensors.
Arc Flash Protection for Two Separate Zones
Used to protect two adjacent but independently isolated areas, such as a busbar system with a main isolating switch, divided into two dual-source or two main load areas.
– Transformer Compartment (e.g., protection for the primary side vs. the secondary bus).
– Switchgear Cubicle (A single, larger cubicle may be divided into two zones for enhanced selectivity, e.g., incoming section vs. outgoing feeders).
Multi-zone arc flash protection is the essential architecture for safeguarding complex, large-scale LV, MV, and HV electrical networks—including Industrial, Railway, Generation, and Distribution systems up to 66kV. This protection is critical for extensive equipment such as multi-section Switchgear, large Motor Control Centers (MCCs), and multiple substations within a facility. By requiring intricate zoning across bus sections, feeders, and tie breakers, and utilizing dedicated sensors (and sometimes dedicated relays) for each area, the system achieves precise fault location, high selectivity, and minimizes downtime across the entire network.
Arc Flash Relay Accessories
To enhance the functionality of our arc-protection relays, we offer a range of specialized arc-flash sensors. These sensors are designed to provide optimal coverage by allowing users to mix and match sensor types—such as ARC flash fiber-optic sensors or ARC detection Point loop sensors—based on the specific space constraints and required protection area size of their switchgear, busbars, or OEM panels. Crucially, these light sensors are always used in conjunction with current protection, ensuring that the system relies on a dual-criterion trip logic for high reliability and maximum operational security.
Contact With Us
Contact us to get a free quote and more expertise about our arc flash protection products. Your Project will meet a cost-effective solution with Sell-Best.
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- info@Sell-Best.com
- +86 023 6762 8702
- Building 2 No. 88, Jianxin East Road Chongqing China
It is our pleasure to answer your queries related to your business and requirements. Sell-Best will always be behind you and a cost-effective partner for your electrical automation business.