CE Certified
TOMZN Weekly 7 Days Programmable Digital TIME SWITCH AC 220V 16A
Single Phase
16A Relay
220V/230V
CE Certified Din Rail Energy Meter Manufacturer & Supplier in Nakhon Ratchasima
Precision Power Monitoring, Smart Metering Solutions, and Industrial DIN-Rail Electrical Protection Engineered for the Industrial Heartland of Isan.
Industrial Catalog
Featured DIN-Rail Energy Meters & Smart Timing Devices
Explore our CE-certified line of smart DIN-rail watt-hour meters, programmable cycle timers, and modular controllers tailored for panel builders, commercial facilities, and solar EPCs across Nakhon Ratchasima.
CE Certified
TORT7 Series Asymmetric Cycler Multi-function Timer Relay Switch
10-in-1 Modes
0.1s-10 Days
DIN 35mm
Smart Control
TOS6-40 Bluetooth Time Control Switch 35mm DIN Rail AC85-265V 40A
Bluetooth BLE
40A Capacity
Loop Timing
CE Certified
TOMZN TOS7-B Bluetooth Smart Timer Switch 40A/63A 85-265V App Sync
EasyCon App
63A Switching
28 Group Timers
CE Certified
TOMZN 1NO 1NC Single Phase Weekly Programmable Time Relay 16A
1NO+1NC Contact
Multi-Voltage
LCD Digital
Smart Control
TOMZN Bluetooth Smart Timer Switch 85-265VAC 10A/30A Wall-Mounted
EasyCon App
Loop Timing
Dual Mounting
IoT Metering
TOB9e-63M Smart Breaker with Integrated DIN Rail kWh Energy Meter
kWh Metering
WiFi eWeLink
Overload Limit
Power Display
Modular DIN Rail 63A/80A Voltage & Current Meter with kWh Counter
V+A+kWh Display
Surge Safe
DIN 35mm
Technical Engineering Monograph
DIN-Rail Energy Metering Architectures for Modern Industrial Sub-Distribution
In high-density industrial and processing hubs like Nakhon Ratchasima (Korat), electrical distribution infrastructure must balance high throughput demands with meticulous efficiency controls. The transition from legacy, bulky analog switchboard meters to modular, 35mm DIN-rail mounted power meters represents a structural shift toward granular, distributed telemetry. DIN rail watt-hour meters provide precision energy measurement compliant with international standard IEC 62053-21 / IEC 62053-22 (Class 1.0 and Class 0.5s accuracy limits), transforming standard sub-distribution boards into intelligent energy data nodes.
Unlike conventional utility billing meters installed at main incomers, DIN-rail energy meters are purposefully engineered for direct sub-circuit monitoring, tenant cost allocation, machinery energy profiling, and automated peak-demand curtailment. Incorporating continuous true RMS voltage and current sampling via precision shunt resistors or current transformer (CT) inputs, modern solid-state meters capture complex non-linear electrical profiles without thermal drift, ensuring reliability even under rigorous tropical operating conditions typical of northeastern Thailand.
Critical Metrological Criteria & Communication Protocols
Specifying an energy meter for demanding processing plants requires a rigorous evaluation of both electrical stability and supervisory integration capabilities:
- Direct-Connect vs. CT-Operated Topologies: Direct-connect variants (handling up to 63A, 80A, or 100A continuous current) eliminate the cost and mounting space of external current transformers, making them ideal for branch lighting, small pumping stations, and commercial cold storage units. For high-amperage feeders (mains up to 2500A), CT-operated meters utilize standard 5A or 1A secondary inputs, providing programmable transformation ratios configured via the on-board digital menu.
- Digital Bus Integration (RS485 Modbus-RTU & Wireless M-Bus): Data isolation is essential in industrial telemetry. Our meters feature galvanically isolated RS485 communication ports supporting standard Modbus-RTU protocols, allowing seamless communication over long multidrop fieldbuses into central PLC systems, SCADA platforms, or localized building management networks (BEMS).
- Harmonic Resilience & Multi-Tariff (TOU) Registers: With the Provincial Electricity Authority (PEA) of Thailand implementing strict Time-of-Use (TOU) tariff structures for medium and large industrial consumers, DIN-rail meters equipped with internal real-time clocks (RTC) and multi-tariff registers empower factory managers in Korat to automate load-shedding and quantify off-peak vs. on-peak consumption ratios accurately.
Technical Specification Standard Reference
| Metrological Parameter | Single-Phase DIN-Rail Series | Three-Phase Modular CT Series | Smart IoT / Wireless Series |
|---|---|---|---|
| Nominal Operational Voltage | 220V / 230V AC (±20%) | 3×230/400V AC 4-Wire | 85V – 265V Universal AC |
| Current Rating (Ib/Imax) | 5(63)A / 5(80)A Direct | 1.5(6)A CT Secondary | 10A, 40A, 63A Direct Cutoff |
| Active Energy Accuracy | Class 1.0 (IEC 62053-21) | Class 0.5s (IEC 62053-22) | Class 1.0 Active (±1%) |
| Communication Interface | Optical Pulse Output (SO) | RS-485 Modbus-RTU Isolated | Bluetooth BLE / 2.4GHz WiFi |
| Insulation & Dielectric Withstand | 4kV AC for 1 min / 6kV Impulse | 4kV AC for 1 min / 6kV Impulse | 3kV AC Surge Suppression |
| Operating Temperature Envelope | -25°C to +55°C (Up to 95% RH) | -25°C to +70°C (Up to 95% RH) | -20°C to +60°C |
Localized Field Deployment
Engineering Applications Across Nakhon Ratchasima
Nakhon Ratchasima serves as the multimodal logistics, manufacturing, and agricultural epicenter of Isan. Here is how our DIN-rail energy meters solve specific operational challenges across key regional facilities.
Navanakorn Industrial Estate (Korat)
Precision sub-metering in automotive assembly lines, electronics manufacturing, and metal fabrication workshops. Our Class 0.5s meters interface directly with factory-floor SCADA networks via RS485, tracking machine idle-time power consumption and isolating power factor inefficiencies across automated lines.
Solar PV Microgrids & Agri-Solar Farms
Bi-directional active energy meters record both import and export power in rooftop solar installations on cassava and sugarcane processing plants. Seamlessly integrated into IP65 combiner enclosures alongside our DC MCBs and SPDs, they quantify real-time solar utilization and verify PEA feed-in thresholds.
Agro-Processing & Cold Storage Chains
Heavy industrial freezing facilities and feed mills in Pak Chong and Chok Chai depend on 3-phase DIN meters coupled with over/under voltage protection relays to monitor continuous compressor draw, preventing brownout damage and automating phase-loss alarms before thermal breakdowns occur.
Regional Market Dynamics
Future-Proofing Korat’s Energy Landscape
Nakhon Ratchasima is undergoing an infrastructure transformation driven by Thailand's Smart City development programs, renewable clean energy mandates, and modern logistics connectivity.
Decentralized Power & Bi-Directional Tariffs
As large agricultural estates across Korat invest in commercial solar arrays and biogas generation facilities, distribution switchboards require bi-directional DIN-rail energy meters capable of independently tracking imported grid energy against exported clean power without register tampering.
IoT Telemetry & Remote Energy Dashboards
Modern commercial buildings and industrial parks in Muang Nakhon Ratchasima are transitioning from manual meter readings to wireless IoT architectures. DIN-rail meters equipped with Bluetooth, WiFi, and RS485 allow field engineers to diagnose power line events directly via smartphone apps or centralized dashboards.
High-Ambient Thermal & Surge Resilience
Nakhon Ratchasima experiences extreme tropical heat and sudden seasonal lightning storms during the monsoon period. The demand is surging for DIN-rail meters housed in self-extinguishing flame-retardant (UL94-V0) polycarbonate enclosures with robust transient surge resistance matching IEC 61000-4-5 standards.
Manufacturing Excellence
Inquire Now
Why Direct-from-Factory Sourcing Gives You a Competitive Edge
With a 24-year manufacturing lineage in Liushi, Wenzhou—the low-voltage capital of China—Zhejiang TMB Electric Co., Ltd. provides panel builders, distributors, and EPC contractors in Nakhon Ratchasima with direct access to certified electrical production capacity, rapid lead times, and rigorous quality controls.
- TÜV Rheinland On-Site Verified: Complete production workflows, dielectric test bays, and QA protocols independently audited and validated by TÜV Rheinland.
- Comprehensive DIN-Rail Ecosystem: In addition to energy meters, we manufacture matching DC/AC circuit breakers, automatic transfer switches (ATS), modular contactors, and PV combiner enclosures.
- Agile Procurement & Low Sample MOQ: Standard catalog meters and switches start from low minimum orders (5 units) to facilitate rapid prototyping and testing before full container commitments.
- Full OEM/ODM Private Labeling: Custom front-plate laser engraving, customized PEA-aligned frequency firmware, tailored packaging, and specialized current rating combinations.
Factory Credential Profile
- Operating Experience24+ Years
- Total Facility Area5,700 m²
- Audited Workforce92 Technical Personnel
- Annual Export VolumeUS$ 3.3M+
- Inspection AuthorityTÜV Rheinland Assessed
- Quality CertificationsCE, ISO9001 Compliant
- Export Experience100+ Destination Countries
- Factory LocationLiushi, Wenzhou, China
Procurement Support
Frequently Asked Questions by Thai Engineers & Buyers
Technical, regulatory, and logistics answers for importing DIN-rail energy meters and electrical devices into Nakhon Ratchasima and greater Thailand.
Are your DIN-rail energy meters compatible with Thailand’s 50Hz electrical grid and PEA requirements?
Yes. All single-phase (220V/230V) and three-phase (3×230/400V) DIN-rail meters are calibrated for 50Hz grids standard across the Provincial Electricity Authority (PEA) and Metropolitan Electricity Authority (MEA) networks. They maintain tight IEC Class 1.0 or Class 0.5s active power accuracy across local grid voltage swings (85V–265V tolerances on select models).
What documentation and certificates are provided for import clearance through Thai Customs?
Every shipment is supported by complete CE Declarations of Conformity, laboratory factory test reports, comprehensive metrological datasheets, and Certificate of Origin (Form E) documents. Form E enables Thai importers to take advantage of the China-ASEAN Free Trade Agreement, minimizing or eliminating import duties.
Can your meters interface with existing SCADA or PLC setups in Nakhon Ratchasima industrial plants?
Yes. Our RS485-enabled models run standard Modbus-RTU protocols with user-configurable baud rates (up to 19200 bps) and slave addresses (1-247). They connect effortlessly to industrial PLC gateways, Siemens/Schneider telemetry modules, and localized IoT cloud controllers across factory floors.
What is the minimum order quantity (MOQ) and delivery timeline to Korat?
Standard catalog energy meters and timer relays carry an evaluation MOQ of just 5 units (with select programmable timers starting from 1 unit). For regional distributors or large contractor projects in Korat, sea freight shipments from Ningbo/Shanghai port to Bangkok (PAT / Laem Chabang) typically take 7–10 days on the water, with express air cargo options taking 3–5 working days for urgent samples.
How do these DIN-rail meters perform under high ambient heat and humidity?
The tropical climate in Isan requires robust thermal management. Our DIN-rail meters are housed in flame-retardant, high-impact polycarbonate materials rated to withstand continuous ambient temperatures up to +70°C and relative humidity up to 95% non-condensing. Internal printed circuit boards feature protective coatings against dust and tropical moisture corrosion.
Can you deliver customized OEM branding and private labeling for Thai panel builders?
Yes. We offer turnkey OEM/ODM services. We can laser-etch your company branding, part numbering, and wiring diagrams directly onto the product housing, supply customized packaging, and tailor internal microcontroller firmware to specific pulse-weight or display parameters based on your project volume requirements.
Direct Factory Support
Request a Specification Sheet or Project Quotation
Collaborate directly with our engineering division in Liushi. Whether you need Class 1.0 sub-meters for commercial tenant distribution, bi-directional solar energy meters, or custom DIN-rail panels for your Korat development, our specialists are ready to assist.