UniWave Electric
High-Performance Electrical Safety Switchgear Engineered to Secure Sri Lanka's Modern Commercial, Industrial, and Infrastructure Grid Networks
Send Inquiry NowOptimized protective devices featuring customized trip points calibrated for tropical ambient temperatures, safeguarding key installations in Colombo, Biyagama, and Hambantota.
Heavy-duty protection designed for high ambient temperatures and industrial machinery protection across Sri Lankan manufacturing sectors.
Space-saving, high-performance breaker. Ideal for multi-story residential and retail switchboards in the heart of Colombo.
Equipped with adjustable trip setting arrays to support complex coordination schemes in industrial and textile plants.
Advanced anti-interference technology preventing false trips in environments with high harmonic noise from automated machinery.
Sri Lanka's power grid, managed under the authority of the Ceylon Electricity Board (CEB) and Lanka Electricity Company (LECO), is currently undergoing a rapid modernization path. With a goal of generating 70% of its electricity from renewable resources by 2030, the integration of distributed solar PV farms and wind energy plants introduces unique power quality challenges. In parallel, Sri Lanka's industrial core (centered in Export Processing Zones (EPZs) like Katunayake, Biyagama, and Hambantota) demands robust, unwavering electrical protection to prevent costly downtime.
Tropical environmental conditions also play an adverse role. The combination of high relative humidity (exceeding 85% near coastal areas), salt-laden marine air, and elevated ambient temperatures averaging 35°C to 40°C in plant utility enclosures can severely degrade standard low-voltage switchgear. Standard breakers suffer from premature thermal aging, creepage pathway breakdown, and unexpected nuisance tripping.
How Wenzhou UniWave Electric incorporates next-generation circuit protection technologies for modern distribution networks.
While thermal-magnetic units provide reliable bimetallic overcurrent protection, global trends favor Microprocessor-based Electronic Trip Units (ETUs). These provide customizable settings for Long-time (L), Short-time (S), Instantaneous (I), and Ground Fault (G) delays, ensuring precise coordination.
Integration of Modbus-RTU, Ethernet, and IoT-enabled modules transforms MCCBs from offline protective switches to rich energy data nodes. This enables operators in Sri Lankan factories to predict maintenance needs and monitor loads in real-time.
With global solar energy configurations advancing to 1000V and 1500V DC operating voltages, specialized DC Molded Case Circuit Breakers with magnetic arc-extinction barriers are vital to protect PV inverters and central battery storage nodes.
| Feature / Parameter | Thermal-Magnetic MCCB | Electronic Trip (Microprocessor) MCCB | Suitability for Sri Lankan Applications |
|---|---|---|---|
| Operating Principle | Bi-metallic strip for overload; electromagnet for short-circuit. | Rogowski coils or current transformers with microcontrollers. | Both are widely used; Electronic is preferred for high-precision zones. |
| Ambient Temperature Effect | Tripping threshold shifts with ambient temperature (derating required). | Minimal sensitivity to ambient temperature variations. | Electronic MCCBs are highly recommended for hot enclosures in Sri Lanka. |
| Trip Curve Adjustment | Fixed or limited thermal/magnetic adjustments. | Fully adjustable LSI (Long, Short, Instantaneous) settings. | Electronic enables precise selectivity in complex textile mills. |
| Harmonics Tolerance | Can suffer nuisance heating from high harmonic currents. | True RMS detection ignores safe harmonic spikes, avoids false tripping. | Essential for facilities employing heavy VFD motor controls. |
| Cost / Value Factor | Highly cost-effective with robust service life. | Higher initial investment, but provides comprehensive telemetry. | Thermal-magnetic is standard; electronic for main critical feeds. |
Engineered to protect critical infrastructure, processing plants, and commercial centers across the island.
Industrial garment facilities in Katunayake and Biyagama EPZs operate massive rows of industrial sewing machines, fabric-cutting lasers, and water treatment pumps. These continuous operations demand high-integrity, anti-harmonic MCCBs like our SFC series to suppress inductive spikes and prevent thermal-fault shutdowns that disrupt massive export delivery timelines.
Modern skyscrapers, commercial office towers, and luxury hotels in Colombo Port City require high-density switchboards. Compact breakers such as the CVS and NSX series save up to 30% of space inside riser cupboards, while their high breaking capacity (Icu up to 50kA/65kA at 415V) ensures protection against catastrophic utility faults.
Deep in the central hills of Nuwara Eliya and Ella, tea processing mills operate in high-humidity and particulate-heavy environments. Moist atmospheric conditions can cause standard insulating shells to track and short-circuit. UniWave MCCBs are constructed with glass-reinforced compounds and anti-fungal treatment, securing operation under constant moisture.
Wenzhou UniWave Electric Co., Ltd. is a leading manufacturer specializing in a wide range of electrical products, including Circuit Breakers (RCBO / RCCB / MCB / WiFi Smart MCB / MCCB / ACB), Isolator Switches, Change Over Switches, AC Contactors, Thermal Relays, Magnetic Starters, Solid State Relays, Distribution Boxes, Voltage Stabilizers, and Voltage Protectors. Our company is located in Liushi, Yueqing, Wenzhou, China, famously known as the "City of Low Voltage Electrical Appliances," offering both a thriving industrial environment and a beautiful natural setting.
With over 25 years of experience in the circuit breaker and AC contactor industry, Wenzhou UniWave Electric has established a strong reputation for quality, reliability, and innovation. Our products strictly comply with IEC standards and have obtained internationally recognized certifications, including SAA, CE, CB (IEC), and ISO9001.
Our company is equipped with advanced testing instruments and a highly skilled R&D team, allowing us to continually develop new products and improve existing ones. We are committed to providing cutting-edge solutions that meet the evolving needs of our customers. Our products are widely exported and highly appreciated in various markets around the world, including Europe, America, Southeast Asia, the Middle East, and Africa.
Every production process is monitored to maintain reliable electrical protection devices.
UniWave molded case circuit breakers conform to stringent global specifications, providing superior electrical stability.
Our Molded Case Circuit Breakers are engineered with several high-performance features that ensure maximum reliability under volatile electrical system conditions:
Each MCCB undergoes strict validation parameters to comply with international regulations:
Addressing standard engineering queries regarding MCCB selection and application parameters within the Sri Lanka market.
Discover our comprehensive collection of low-voltage switchgear. Designed with durability, ease of maintenance, and compliance for the Sri Lanka market.
Excellent protection with 36kA interrupting capacity, ideal for mid-level distribution networks and large commercial panels.
Standard 3-pole breaker with compact frame, optimized for sub-main boards in multi-tenant buildings.
Fully adjustable magnetic settings that offer protection profiles suited for varying cable sizes and motor loads.
High precision smart monitoring features for integration into industrial automation networks and sub-stations.
Innovative frame design minimizing overall installation envelope, ideal for space-critical control desks.
Combines short circuit, overload, and earth leakage protection in a single module to ensure safety.
Rugged 250A frame size featuring high mechanical reliability for main inputs in commercial projects.
Traditional, robust performance calibrated for standard agricultural pumping systems and general operations.
Get in touch with our engineering team for custom drawings, protection studies, compliance documents, and competitive quotes tailored for your projects. We provide professional sales, logistics, and technical assistance worldwide.
Request detailed data sheets, CAD models, and coordinate curves for your protection studies.
Explore distribution terms, localized stock support, and project protection programs in Sri Lanka.
We offer custom labeling, specific shunt trip additions, and customized thermal calibration profiles.
