What information do I need to provide before requesting a quote for a dry-type transformer temperature controller?
Date: June 30, 2026, 02:12:02
- Before requesting a quote, please confirm the model number of the original thermostat, its feature suffix, installation dimensions, and on-site power supply conditions.
- BWDK-326. The IB-S201 can be configured for general-purpose, communication, and analog output based on the function suffix; please confirm your actual requirements before requesting a quote.
- If there are no specific requirements listed, do not make assumptions on your own; instead, verify the information based on the nameplate, wiring diagrams, and project requirements.
Dry-type transformer thermostatWhen requesting a quote, it is not recommended to simply ask, “How much does a temperature controller cost?” Temperature controllers involve multiple aspects, such as displays, fan control, alarm tripping, communication, analog output, and installation cutouts. If the information provided is incomplete, suppliers will have to repeatedly ask for clarification, and the quote is likely to deviate from the actual on-site requirements. Innotongda’s BWDK-326 and IB-S201 are both dry-type transformer temperature controllers. Standard models include combinations of D, E, F, and EF, among others. Here, “E” denotes a 4–20 mA analog current output, while “F” indicates RS-485/232 serial communication capabilities. Clearly specifying these key points when requesting a quote will make the subsequent selection process much smoother.
Step 1: Check the original model number. If the unit originally installed on-site is a BWDK, IB-S201, BWDK-326, or similar model, take clear photos of the model number on the front panel, the side nameplate, and the terminal wiring diagram. Do not rely solely on the exterior appearance, as the same enclosure may house versions with different functionalities. Step 2: Review the functions. Standard functions typically include three-phase circuit display, maximum value display, automatic/manual fan start/stop, over-temperature alarm, over-temperature trip, and fault alarm. If the system requires remote data acquisition, also confirm whether RS485/232 communication or 4–20 mA output is needed.
| Request for Quote Information | Suggested Content | Reason |
|---|---|---|
| Original Product Model Number | Panel Model, Nameplate, Function Suffix | Determine whether it is a standard function, a communication type, or an analog output type |
| Mounting Dimensions | Cutout Dimensions, External Dimensions, and Photos of Cabinet Doors | Preventing Problems with Installing New Meters |
| Wiring Configuration | Terminal diagrams, photos of on-site wiring | Check the wiring for fans, alarms, trip switches, and sensors |
| Communication Needs | Is RS485/232 required, and does it need to be connected to a backend or system? | Decide whether to choose F or a combination of functions |
| Output Requirements | Is a 4–20 mA output required? | Decide whether to choose a feature combination such as E or EF |
The technical specifications for the BWDK-326 include an operating voltage of 220 VAC, an operating frequency of 50 Hz or 60 Hz, a measurement range of -30.0°C to 240.0°C, a resolution of 0.1°C, fan output capacity of 9 A/250 VAC, and control output capacity of 5 A/250 VAC and 5 A/30 VDC (resistive). These parameters can be used for preliminary discussions, but final confirmation must be based on the actual model and on-site wiring conditions. The IB-S201’s functions and dimensions can also be confirmed based on specific requirements; however, the complete model number, wiring, and installation conditions must still be verified before final selection.
For new projects, please also specify the number of transformers, whether each one requires a separate temperature controller, and whether control is required.Cooling Fans, and whether it needs to be uploaded to the backend. If you are replacing an old device, please also provide a photo of the original thermostat, the number of sensors, the number of fans, and the purpose of the alarm trip wiring.
Related FAQs
1. If I only know the capacity of a dry-type transformer, can you provide a quote right away?
We can discuss this preliminarily, but we do not recommend finalizing the design just yet. We still need to confirm the model, features, installation dimensions, and wiring method of the original thermostat.
2. What are the differences between the BWDK-326D, E, F, and EF models?
D indicates standard functionality; E adds a 4–20 mA analog current output; F adds RS-485/232 communication; and EF indicates a combination of these functions.
3. Do the cutout dimensions for thermostats have to be the same?
Not necessarily. Even if the model is the same, it’s still recommended to take photos of the original gauge and the cutout location when replacing it to confirm the installation dimensions.
4. Can I choose the communication model if I don't have any communication needs?
Communication is possible, but whether it is necessary depends on the on-site backend system or remote transmission requirements, to avoid adding unnecessary configuration.
5. What is the most important photo to include when requesting a quote?
The panel model, nameplate, terminal wiring diagram, cabinet door installation location, and photos of the on-site wiring are the most useful references.
