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Brand: Industrie Technik
Industrie Technik DB-14D/02/004-M Thermostat
Description
Overview
The Industrie Technik DB-I4D/02/004-M (often written DB-14D/02/004-M) is the Master unit of the Industrie Technik DB-I4D/02/004 digital thermoregulator with 8 relays. The DB-I4D/02/004 system is made up of two housings: a Master, which carries the display and keypad, holds all operating parameters, reads the remote NTC temperature sensor and drives the first 4 output relays, and a Slave, which switches the remaining 4 relays and shows the status of the serial link between the two units.
The controller is designed to run heating and cooling plant built from heaters, heat pumps and chillers. It can command up to 8 machines and/or alarms in total, each output switching at a programmable offset from the set point with its own hysteresis. A remote set point accessory (DB-CDP/N1) can be connected to the Master, and a rotation mode is available to change the sequence in which machines are started.
Key Features
- Master unit of the DB-I4D/02/004 8-relay digital thermoregulator; drives the first 4 SPDT relays
- NTC 10K temperature input with a measuring range of -50 to +110 °C
- Each output configurable for heating, cooling or alarm duty with offset and hysteresis settings
- 7-segment display and 4-button front keypad for set point and parameter programming
- Serial link to the Slave unit, plus an optional input for remote set point change (DB-CDP/N1)
- IP65, Class II wall-mount housing
Technical Specifications
| Parameter | Value |
|---|---|
| Part number | DB-I4D/02/004-M (Master) |
| Product family | Industrie Technik DB-I4D/02/004 digital thermoregulator with 8 relays (Master + Slave) |
| Power supply | 230 V AC ±10%, 50–60 Hz |
| Power consumption | < 6 W |
| Input | NTC 10K resistive sensor, serial channel, remote set point accessory (option) |
| Measuring range | -50 to +110 °C (NTC 10K) |
| Outputs (system) | 8 SPDT relays, 10 A 230 V AC resistive load; 4 on the Master, 4 on the Slave |
| Output hysteresis | Adjustable 0 to 10 °C |
| Display | 3-digit 7-segment display |
| Programming | 4-button keypad on the front of the Master unit |
| Operating conditions | -10 to +50 °C, 10–90% RH, non-condensing |
| Protection | IP65, Class II |
| Housing size | 200 × 120 × 75 mm (per housing) |
| Standards | EN 60335-1, EN 61000-4-2, EN 61000-4-4, EN 55011, EN 55014, ENV 50141 |
| Storage conditions | -20 to +70 °C, below 95 % RH |
| Housing material | Polycarbonate (Makrolon) |
| Cable entries | M16 × 1.5 cable glands |
| Terminals | Screw terminals, detachable |
| Weight (complete set, incl. packaging) | 1.84 kg |
| Setpoint setting range | -99 to +999 °C, factory value 20 °C |
| Per-relay offset from setpoint | -99 to +100 °C, factory value 0 |
| Per-relay restart delay | 0 to 9.50 min, factory value 0.10 |
| Alarm delay | 0 to 9.50 min, factory value 0.10 |
| Minimum time between two relay activations | 6 seconds |
| Relay modes | OFF, H (heating), C (cooling), AH, AL, AHL (alarm) |
Applications
- Staging of multiple heaters, boilers or heat pumps against a single temperature sensor
- Chiller and cooling plant sequencing with high and low temperature alarms
- Multi-machine HVAC plant rooms in commercial and industrial buildings
- Temperature control of plant rooms and process areas in power, water and oil & gas facilities where several machines are sequenced
Industrie Technik DB-I4D/02/004-M Installation and Wiring Notes
The Master housing carries all field wiring for the measurement side. According to the manufacturer wiring diagram, terminals 1 to 5 are the sensor inputs, terminal 6 is TXD, terminal 7 is RXD, terminal 8 is serial ground and terminal 9 is a DC output. The NTC 10K probe is wired to the Sensor 1 input and sensor ground. The four changeover relay stages 1 to 4 sit on terminals 10 to 22, and the 230 V AC supply is connected to terminals 23 and 24.
The serial link to the Slave housing (DB-I4D/02/008-S1) is taken from the serial terminals of the Master. Each housing has its own 230 V AC supply terminals, so both must be powered.
Installation and maintenance must be carried out with the controller and the external loads de-energised. To keep the IP65 rating, the cover screws have to be tightened and the cable glands closed after wiring.
Industrie Technik DB-I4D/02/004-M Selection Notes
Each of the eight outputs is configured separately with a mode (off, heating, cooling, high alarm, low alarm, or combined high/low alarm), an offset from the setpoint, a hysteresis and a minimum restart delay. Alarm outputs latch: once triggered, they stay active until a key is pressed, even if the temperature returns to normal. If the sensor is open or short-circuited, all alarm outputs are activated and every heating or cooling relay is switched off.
Stage rotation can be enabled separately for cooling and heating; the activation order then varies to even out running hours. A measurement offset is available for sensor calibration, and parameter access can be protected with a password. While parameters are being edited, all relays are de-energised.
Why Seven Star LLC
Seven Star LLC supplies Industrie Technik DB-I4D series controllers as OEM spares and retrofit parts across Oman and the GCC. Before quoting, we check the part number, the Master/Slave configuration and the terminal layout against the unit already installed, because the Master and Slave housings are different and cannot be swapped for each other.
Request a Quote for Industrie Technik DB-14D/02/004-M Thermostat
Send your inquiry through our RFQ page with the full part number from the label, the quantity, whether you also need the matching Slave unit, and a photo of the existing unit if you have one. We will confirm the correct Industrie Technik DB-14D/02/004-M thermostat and send a formal quotation.
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About brand
Industrie Technik makes field devices and controls for heating, ventilation and air conditioning. Its catalogue is organized around controllers, sensors, transmitters, switches, actuators and valves for building and plant services. Seven Star LLC sources and supplies Industrie Technik thermostats and controllers for customers in Oman; the two items listed on this page are DB-14D series thermostats.
Industrie Technik product groups
The manufacturer divides its switch range by the variable being monitored: temperature, pressure, flow, level and humidity. Temperature switches are offered in clamp-on, frost protection, duct, room, immersion and wall-mounted forms. Alongside these come room, duct, outdoor and immersion transmitters, valve and damper actuators, and zone, ball, globe and butterfly valves for hydronic circuits.
Ordering Industrie Technik thermostats: what we need
These thermostats are ordered by the complete code, and the digits after the slashes matter. DB-14D/02/008-S1 and DB-14D/02/004-M are different items. Send the full code from the label or a clear photo of it, the setting range, and how the device is mounted (duct, immersion pocket or surface). For GCC building projects, tell us if the consultant has asked for the manufacturer's datasheet with the offer.
Browse Industrie Technik products by category: Temperature Instrumentation, Controllers & Data Acquisition.
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Frequently Asked Questions
Include the full model and part number, the supply and voltage data of your system and the quantity required. Seven Star LLC matches the item against the manufacturer documentation and confirms compatibility before preparing the quotation.
Yes. Seven Star LLC supplies industrial components across Oman and the wider GCC, and the inquiry form on our website accepts requests from anywhere in the region. Our team responds with a formal quotation for your project.
Seven Star LLC supplies Industrie Technik products to customers in Oman and the GCC and can provide the manufacturer documentation and technical support on request.
Submit a formal inquiry through the RFQ page of our website with your specification. The inquiry form collects the product name, brand and category of the item, and our team responds with the pricing and availability details for your order.
Our technical team reviews the product data of your plant, confirms the configuration and advises on associated spares and installation details before your order is placed.

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