DIN Smart
Product Portfolio
Precision Voltage, Timing & Protection Assemblies for Turkey
Direct supply of self-recovering over/under voltage relays, smart DIN switches, and digital cycle controllers optimized for 230V/400V 50Hz networks across Turkish grid architectures.
TSE Target
TOMZN New Type DIN Rail Single Phase 7-Day Digital Timer
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CE Marked
TOMZN 1NO+1NC DIN Rail Single Phase Digital Relay Timer
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Heavy Duty
TOS6-40 Industrial Bluetooth Time Control Switch (40A)
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Dual Mount
TOMZN Bluetooth Smart Timing Switch (10A / 30A Option)
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Automation
TORT7 Series Multi-Function Delay Relay (10-in-1 Cycler)
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Grid Best Seller
TOMZN 63A/80A Adjustable Over & Under Voltage Recloser
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3-Phase Line
TOMZN 63A 3-Phase (3P+N) Digital Voltage & Phase Relay
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Technical Insight & Engineering Guide
Solving Power Quality Dynamics across Turkey's Electrical Network
Navigating the interaction between TEİAŞ transmission grids, regional TEDAŞ distribution zones, and modern distributed renewables requires precise trip thresholds and delay coordination.
Transient Surges vs. Sustained Overvoltage Dynamics in Turkey
Turkish electrical infrastructure operates under strict European harmonization guidelines (harmonized via CENELEC / TSE EN 60947 standards). However, structural geography and fast-expanding industrial centers introduce unique challenges. Regions managed by private distribution companies (such as BEDAŞ in Istanbul European side, AYEDAŞ in Asian side, GDZ Elektrik in Izmir, and Başkent EDAŞ in Ankara) regularly report seasonal voltage sags and unannounced grid swelling.
A fundamental misconception among local procurement specialists is confusing a Surge Protective Device (SPD / Parafudr) with an Over and Under Voltage Protector (Gerilim Koruma Rölesi). SPDs are metal oxide varistors designed to clamp microsecond-level lightning impulses and transient spikes down to an acceptable Up level. They offer no protection against persistent, seconds-long overvoltage caused by broken neutral lines (notr kopması) or rapid load shedding in large Organized Industrial Zones (OSB). Our self-recovering voltage protectors provide true galvanic or magnetic isolation within 0.1 to 0.5 seconds, remaining in trip status until the root-mean-square (RMS) voltage stabilizes.
Crucial Engineering Rule: Neutral-Loss (Nötr Kopması) Protection
In three-phase distribution systems common to Turkish commercial workshops, a loose or snapped neutral line shifts the virtual star point toward the most heavily loaded phase. Unloaded single-phase consumer equipment on the opposite phases can suddenly experience phase-to-phase potential reaching 380V–400V AC. Without a fast-acting 3P+N overvoltage recloser, switch-mode power supplies, variable frequency drives, and refrigeration compressors suffer terminal destruction.
| Protection Metric | Standard Residential (Single-Phase) | Commercial / Small Business | Industrial Zone (OSB 3-Phase) |
|---|---|---|---|
| Nominal Voltage (Un) | 230V AC ± 10% (50 Hz) | 230V / 400V AC | 400V AC Line-to-Line |
| Recommended Overvoltage Cut-off | 265V – 275V AC (Trip <0.2s) | 260V – 270V AC (Trip <0.1s) | 430V – 450V Phase-to-Phase |
| Recommended Undervoltage Cut-off | 165V – 175V AC (Trip <0.5s) | 175V – 185V AC (Trip <0.5s) | 320V – 340V Phase-to-Phase |
| Reconnection Recovery Delay | 30s – 60s (Built-in timer) | 60s – 180s (Compressor safe) | 5s – 30s (Via Contactor Interlock) |
| Integrated Current Protection | Up to 63A direct pass | Up to 80A direct pass | External CT or Breaker Interlock |
Field Implementations
High-Yield Application Scenarios Across the Turkish Landscape
Tailored protection strategies deployed across residential developments, intensive manufacturing hubs, and hybrid energy transition projects.
Urban Modernization & High-Rise Residential
In high-density apartment blocks across Istanbul (Esenyurt, Başakşehir) and Izmir, localized distribution sub-stations experience severe phase imbalance during peak HVAC cooling periods. Din-rail automatic reclosers prevent catastrophic appliance burnout caused by sudden neutral fluctuations.
Spec: 63A Single Phase 230V Auto-Recloser + LCDOrganized Industrial Zones (OSB Heavy Duty)
Factories operating in Bursa, Gebze, and Kocaeli require protection for sensitive PLC controls, CNC routers, and motor lines against voltage sags resulting from arc welding and massive inductions across shared factory feeders. 3P+N relays ensure precise motor protection.
Spec: 3P+N Voltage & Asymmetry Relay + Relay ContactorSolar GES (Güneş Enerjisi Santralleri) Rooftops
With Turkey's unlicensed solar rooftop boom under regulation Article 5.1.h, bidirectional power injection frequently pushes local grid voltages above permissible limits at mid-day. Our protection units safeguard string inverters from grid-tripping loops and undervoltage evening drops.
Spec: Combined DC/AC Combiner Protection & Delay RelaysTourism & Cold-Chain Hospitality
Hotel resorts and agricultural cold stores along Antalya and Mugla face seasonal brownouts during summer spikes. If compressor circuits restart immediately after an interruption, high backpressure can stall motors. Our programmable reclose delay guarantees safe pressure equalization.
Spec: Programmable Reset Timer (30s–300s) + ContactorTelecom Base Stations & Remote BTS Infrastructure
Cellular towers situated in rural Anatolia operate with unstable grid connections, often switching between utility power and diesel gensets. Automated voltage protectors isolate the rectifier inputs, preventing generator overshoots from damaging high-density power banks.
Spec: 80A Compact DIN Protector with Fail-Safe AlarmsAgricultural Irrigation & Pump Stations
Across the Konya agricultural basin and Şanlıurfa plains, submersible pumps regularly fail from line drops and two-phasing (phase loss). Our 3-phase relays detect phase reverse, loss, and deep drops instantly, protecting expensive motor windings from heat burnout.
Spec: TORT7 Time Relay + 3-Phase Voltage Unbalance Protector
Strategic Market Analysis
Macro Trends Transforming Turkish Low-Voltage Protection Demand
Market catalysts driving higher specifications and technical standards across Turkish electrical contracting and component wholesaling.
01
Stringent Earthquake Building Codes
Following post-earthquake electrical safety revisions, panel builders must install automatic electrical disconnection and fire-preventative cut-offs to mitigate post-seismic electrical fires caused by pinched wires and loose neutrals.
02
Booming Solar GES Self-Consumption
With high commercial electricity tariffs, thousands of industrial enterprises are installing rooftop solar arrays. Distribution networks require fail-safe bidirectional voltage decoupling to protect sensitive plant equipment.
03
Smart IoT & Karaköy Wholesale Evolution
Contractors sourced through Istanbul’s Karaköy and Perpa trade hubs increasingly mandate digital displays, Bluetooth app-controlled telemetry, and real-time kWh metering directly integrated into standard 35mm DIN-rail profiles.
04
Nearshoring & European Export Alignment
Turkish switchboard builders exporting turnkey control panels to Germany, the Middle East, and Eastern Europe demand verified CE declarations and TÜV-backed reliability to ensure rapid customs and technical approval.
Factory Reliability
Why Turkish Importers & Panel Builders Partner with Zhejiang TMB
Direct supply from China's premier electrical capital in Liushi Town, Wenzhou, backed by comprehensive certification and customized OEM solutions.
TÜV Rheinland On-Site Assessed
Our 5,700 m² modern production facility and 92 full-time staff operate under third-party audit verification, guaranteeing true factory-direct manufacturing without trading intermediaries.
24 Years of Precision Tooling
Located at the core of the Liushi low-voltage supply chain, we control in-house silver contact riveting, arc extinguishing chambers, and flame-retardant polyamide housings for superior durability.
Flexible Low Trial MOQs
Support for growing wholesalers and project trial runs with order thresholds starting from just 5 pieces on standard catalog models, ensuring zero working capital risk before full container sourcing.
Turnkey OEM / ODM & Turkish Private Label
Complete customization services including bilingual laser marking (Turkish/English), custom retail packaging, dedicated tripping profiles, and combined ATS/Timer pre-wired enclosures.
Streamlined Logistics to Turkish Ports
Experienced documentation handling for Ambarlı (Istanbul), Mersin, Gemlik, and Alsancak (Izmir) ports, ensuring fully aligned HS Code declarations (8536.20 / 8536.49) and CE compliance files.
100% Comprehensive Factory Testing
Each unit undergoes automated power-on cycling, dielectric withstand verification, and thermal/magnetic trip point calibration before export boxing to ensure zero on-site callback rates.
Procurement FAQ
Frequently Asked Questions by Turkish Importers & Panel Contractors
Critical commercial, regulatory, and technical considerations answered by our senior electrical engineering group.
Do your voltage protectors comply with TSE (Turkish Standards Institution) requirements?
Yes. Our over and under voltage protectors are designed and manufactured in full accordance with IEC / EN 60947-2, IEC 60947-4-1, and Low Voltage Directive (LVD) 2014/35/EU, which directly correspond to the harmonized TSE EN standards enforced by Turkish customs and electrical inspection bodies. We provide complete CE declarations and accredited third-party lab test reports with every bulk shipment.
Can we brand products with our own Turkish trademark and packaging?
Absolutely. We provide comprehensive OEM/ODM services for established electrical brand owners and regional wholesalers across Istanbul, Ankara, and Izmir. Services include permanent front-panel laser marking, customized outer color carton packaging with Turkish wiring diagrams and EAN-13 barcodes, and custom default factory trip threshold settings.
How do your self-reclosing protectors handle intermittent neutral wire failures?
When a neutral connection breaks in a 3-phase system, line voltages fluctuate drastically. Our micro-controller continuously evaluates the true RMS voltage. If voltage exceeds the preset limit (e.g., 270V), the internal magnetic latching relay disconnects the circuit in less than 0.1 seconds. Crucially, the unit will not reconnect until the neutral reference is firmly restored and line parameters remain within calibrated limits throughout the reconnection countdown delay period.
What are the payment, lead-time, and shipping terms for Turkish ports?
Standard production lead-time is 7 to 15 business days depending on volume and customization. We support FOB Ningbo/Shanghai as well as CIF Ambarlı, Mersin, or Gemlik. Common trade payment options include T/T and Irrevocable L/C at sight for volume contracts. We provide comprehensive export documentation, including ATR (when applicable under bilateral customs rules) or Certificates of Origin, commercial invoices, and clean packing lists for smooth Turkish customs clearance.
Can the unit withstand motor startup surges without nuisance tripping?
Yes. Our protectors feature user-programmable trip action delays (0.1s to 10s) specifically calibrated to distinguish between a destructive steady-state overcurrent/voltage fault and transient high-current motor inrush spikes. For large commercial compressors and agricultural pumps, adjusting the action delay ensures full protection without annoying false trips.
Equip Your Supply Chain with Certified Protection Relays
Request technical datasheets, full 2025 product catalogs, and customized container-level pricing for the Turkish electrical wholesale market.