Engineered in Liushi, Wenzhou—China's low-voltage electrical capital—our certified breakers and intelligent micro-relays offer maximum breaking performance, extreme temperature tolerance, and effortless DIN-rail mounting across residential, industrial, and distributed solar installations.
Versatile pulse generator offering delay-ON and delay-OFF functionality across a wide 0.1s to 10-day timeframe for sophisticated HVAC and pumping control loops.
Microprocessor-driven weekly scheduling relay rated at 16A, compatible with AC 220V, 230V, and low-voltage DC (12V, 24V, 48V) multi-circuit automation setups.
Dual DIN-rail and wall-mounted Bluetooth control switch handling AC 85-265V up to 40A loads. Features app synchronization for countdown loops and cyclical intervals.
Integrated with the EasyCon App ecosystem, this device manages 28 discrete scheduling programs with high-capacity surge resistance on standard 35mm DIN rails.
Equipped with independent normally open and normally closed contact sets, delivering fail-safe dual-path operational security for automated municipal lighting.
Wide-voltage 85–265V AC smart countdown switch engineered for direct wall enclosures or DIN sub-panels with remote mobile Bluetooth synchronization.
Engineered specifically for non-zero-crossing DC arc extinction in utility and rooftop solar PV strings, complete with magnetic blow-out systems and CE compliance.
Compact DIN-rail dual power ATS providing uninterrupted transition between local utility lines and standby solar storage inverters or generator units.
San Diego stands at the forefront of the global energy transition. Governed by aggressive Title 24 California Building Standards, strict microgrid deployment mandates, and ambitious zero-emission building initiatives, electrical infrastructure demands an unprecedented level of safety, modularity, and operational endurance.
As a leading Chinese manufacturer certified under rigorous international standards, Zhejiang TMB Electric Co., Ltd. supplies San Diego’s commercial panel assemblers, solar EPC contractors, and marine terminal developers with circuit interruption devices designed to counter high thermal loads, rapid cycling degradation, and high-voltage DC arcing.
From coastal military installations to rooftop residential arrays across Chula Vista and Escondido, discover how our miniature circuit breakers and protection assemblies integrate seamlessly into localized electrical networks.
Integrated DC MCBs and SPDs in outdoor combiner boxes, safely isolating high-voltage solar strings and lithium-iron-phosphate battery packs under relentless desert-adjacent sun.
Installed across Torrey Pines and Sorrento Valley pharmaceutical campuses to guard micro-filtration systems, cleanroom air handlers, and incubators against minor grid fluctuations.
Deployed within the Port of San Diego’s shore power terminals and maritime maintenance yards, offering corrosion-resistant enclosures and dependable overcurrent protection.
Providing essential secondary branch isolation and automatic load shed scheduling via intelligent timers to circumvent SDG&E on-peak electricity tariff spikes.
Carefully comparing physical, electrical, and environmental performance indices ensures total alignment with project drawings and jurisdictional inspections.
| Product Class | Rated Voltage (Ue) | Rated Current (In) | Interrupting Capacity (Icu) | Trip Curves | Primary Application Field |
|---|---|---|---|---|---|
| TOB1-63H AC Miniature Breaker | 230V / 400V AC (50/60Hz) | 3A – 63A (Single/Multi-Pole) | 6kA / 10kA (IEC 60898-1) | B, C, D | Commercial Lighting & HVAC Distribution |
| High-Voltage Solar DC MCB | 500V, 800V, 1000V DC | 3A – 63A | 6kA / 10kA | C (Instantaneous 7-10 In) | Photovoltaic Combiner Boxes & Inverters |
| Heavy-Duty Battery DC MCB | 600V DC | 80A, 100A, 125A | 10kA | C Curve | Battery Energy Storage Isolation (BESS) |
| TOM7Z DC Molded Case (MCCB) | 1000V DC | 100A – 250A | 20kA / 35kA | Industrial Magnetic | Utility Solar Array Secondary Aggregation |
| TOQ3 Modular Transfer Switch | 110V / 230V AC | 63A – 125A (2P, 3P, 4P) | Integrated MCB Trip | Thermal-Magnetic | Automatic Grid / Generator Backup Switching |
| TOS Series Intelligent Relay | 85V – 265V AC | 16A – 63A | Micro-Break Control | Programmable Microcontroller | Energy Tariff Peak Shaving & Lighting Loops |
Navigating the convergence of aggressive decarbonization, extreme climatic weather patterns, and the modernization of aging distribution boards.
California's Net Billing Tariff (NEM 3.0) drastically reduced solar export compensation, spurring an unprecedented surge in co-located battery energy storage installations. This transition creates immense demand for robust 600V–1000V DC miniature breakers and pre-configured combiner boxes capable of isolating high fault currents.
Public Safety Power Shutoff (PSPS) events during Santa Ana wind conditions require critical commercial, medical, and residential consumers to operate self-sustaining microgrids. Dual power automatic transfer switches (ATS) have shifted from luxury add-ons to mandatory safety components.
Procurement teams in San Diego and greater Southern California face sustained price premiums and extended lead times through domestic Tier-1 brands. Working directly with specialized, audited manufacturers in Liushi offers substantial cost savings while maintaining strict material traceability.
Operating from Huabei Village, Liushi Town, Wenzhou—the world's most concentrated cluster for low-voltage switchgear—we deliver uncompromising precision, third-party verified quality, and flexible OEM/ODM integration.
Our factory floor, assembly protocols, and QA processes undergo continuous physical inspection by TÜV Rheinland, giving global buyers verifiable assurance on production consistency and material specifications.
From silver-alloy contacts and bimetallic thermal triggers to mold tooling and flame-retardant PA66 casings, every critical sub-component is produced locally within kilometers, guaranteeing agility and rock-solid cost control.
Whether testing baseline samples from 5 pieces or deploying custom-badged solar combiner boxes with specific multi-voltage layouts, we accommodate exact technical designs and custom packaging requirements.
Clear, direct answers regarding ratings, international standards, container logistics, and solar system sizing.