Zhenming Electronics
4G network relay controller

ZMRL QL Series Network Relay Controller

LTE(4G) network relay controller series covering 2, 4, 6, 8, 12, 16, 24 and 32-channel remote control with RS485 Modbus RTU and DIN-rail installation.

ZMRL QL Series Network Relay Controller product image
SELECT & PURCHASE

Choose a configuration

Tax-inclusive reference prices in CNY. Negotiable; the quotation reflects the selected configuration, quantity and delivery requirements. All products carry a 3-year warranty.

Purchase guide & prices →
Reference unit priceCNY 198Tax included · Negotiable
Compare model configurations and prices
ModelConfigurationReference priceEnquiry
ZMRL0410-QL44G; power adapter and extended antenna includedCNY 198Add to quote list
ZMRL0610-QL64G; power adapter and extended antenna includedCNY 258Add to quote list
ZMRL0810-QL84G; power adapter and extended antenna includedCNY 298Add to quote list
ZMRL1210-QL124G; DIN-rail power supply and extended antenna includedCNY 348Add to quote list
ZMRL1210-QL124G and RS485; DIN-rail power supply and extended antenna includedCNY 378Add to quote list
ZMRL1600-QL164G; DIN-rail power supply and extended antenna includedCNY 368Add to quote list
ZMRL2400-QL244G; DIN-rail power supply and extended antenna includedCNY 398Add to quote list
ZMRL2400-QL244G and RS485; DIN-rail power supply and extended antenna includedCNY 428Add to quote list
ZMRL3210-QL324G; DIN-rail power supply and extended antenna includedCNY 428Add to quote list

For a complete system, include the power supply, sensors, communication access and platform deployment in your enquiry.

Product Positioning

LTE(4G) network relay controller series covering 2, 4, 6, 8, 12, 16, 24 and 32-channel remote control with RS485 Modbus RTU and DIN-rail installation.

Capability 012 to 32-channel output options
Capability 02LTE(4G) remote access for distributed sites
Capability 03RS485 Modbus RTU integration
Capability 04Used for smart lighting, pumps, valves, cabinets and remote equipment control

Typical Applications

The page is written for engineering companies, system integrators, device manufacturers and B2B project procurement teams.

Smart lighting and grouped circuit controlIndustrial equipment status acquisition and remote switchingLivestock monitoring, weighing and equipment linkageEnergy monitoring, operation records and remote maintenancePrivate deployment and customer system integration

Selection Notes for B2B Projects

Control ObjectPlan the product by lighting circuit, pump, fan, cabinet output or equipment switching object instead of only by channel count.
Protocol and PlatformCheck whether the project needs RS485, Ethernet, LTE(4G), MQTT, Modbus, grouped control, schedules, logs or private platform deployment.
Circuit PlanningSeparate high-power, inductive and frequently switched loads into clear circuits and match controller selection with the cabinet design.

Integration and Deployment

Circuit ObjectsMap each output to a named lighting, pump, fan, valve, cabinet or equipment circuit and retain a clear control boundary.
Local OperationUse dry-contact inputs, wall panels, schedules or supported local rules for field operation when the selected model provides them.
Network OperationsUse the communication interfaces of the selected model for status, remote control, action records and multi-site management.
Electrical CoordinationCoordinate relay loads, contactors, protection, cabinet wiring and manual override with the electrical design.

Protocol and Lighting Strategy Notes

Relay controller projects can be combined with DMX512 lighting control, sunrise and sunset schedules, Modbus integration, MQTT access, platform management and operation logs.

DMX512Sunrise sunset schedulesModbusMQTTLoad selectionOperation logsSmart lightingPrivate deployment

Remote Device Intercontrol

Supported models and firmware can map a remote input, sensor or business event to controller outputs at another site for one-to-one or one-to-many linkage. Applications include water towers and pumps, parking counts, warehouse alarms, irrigation and chain-store equipment.

Selection and system combinations

The QL series provides multi-circuit remote switching over 4G. Select a model by circuit scale; use the relevant ranges for latching outputs or single-circuit energy monitoring.

Technical specifications and model data

Series modelsZMRL0230-QL2, ZMRL0410-QL4, ZMRL0610-QL6, ZMRL0810-QL8, ZMRL1210-QL12, ZMRL1600-QL16, ZMRL2400-QL24, ZMRL3210-QL32
Channel options2, 4, 6, 8, 12, 16, 24 or 32 channels
Supply12V; standard 12V/1A supply configuration
Output typeIndependent dry contacts for 220V circuits
Relay specificationQL2: 30A 240V AC; QL4/QL6/QL8/QL12/QL16/QL24/QL32: 10A 240V AC
CommunicationLTE(4G), RS485
ProtocolModbus RTU
Mounting35mm DIN rail
Enclosure dimensionsQL2: 115×90×40mm; QL4: 107×110×60mm; QL6/QL8: 160×110×60mm; QL12/QL16: 200×115×60mm; QL24: 250×110×60mm; QL32: 300×110×60mm

Product integration and applications

01

Connect distributed cabinets through 4G

The QL family brings a group of cabinet outputs onto a 4G management platform. Organize devices by site, building, pump station or distribution cabinet. Models from 2 to 32 channels support different circuit densities and phased deployment. Grouping several circuits in one controller also reduces the number of separate connected endpoints to manage.

ZMRL1210-QL12 twelve-channel 4G network controller panel
ZMRL1210-QL12 twelve-channel 4G network controller panel
02

Coordinate 4G remote access and local RS485

4G provides the remote management path, while RS485 Modbus RTU serves local bus integration. Retain the required PLC, panel or gateway interaction and use the platform for grouping, remote operations and logs. Plan the supply, bus wiring, load routes and antenna position together. Matching platform names to electrical circuit labels helps remote operators identify the intended load.

03

Build a usable multi-site channel register

A channel register records the area, load name, normal policy and maintenance responsibility of every output. Platform groups can then mirror stores, campuses or equipment groups. Daily work follows connectivity, control records and planned operation. Contact feedback, current sensing or an energy module can extend the view from relay state to actual equipment behavior.

Selection questions

Are QL and QCL interchangeable at the same channel count?

No. Relay specifications, local inputs, interfaces and supply also matter. Select each family from its own model data.

How are multiple 4G controllers organized?

Group them by site, building, cabinet or equipment group, then assign clear field names to each output and use platform permissions and logs.

Selection FAQ

What lighting or control projects are suitable?These relay controllers are used for smart lighting, control cabinets, equipment switching, parks, streets, campuses, hospitals, cinemas and exhibition halls.
How should relay channels be selected?Channel count should follow the number of lighting circuits, equipment groups, cabinet layout and expansion margin.
Can the controller support remote operation?Depending on the model, RS485, Ethernet, 4G, MQTT, TCP, UDP or platform access can support remote control and status viewing.

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