How do manufacturers of dry-type transformer temperature controllers determine the function suffix?
Date: July 14, 2026, 02:12:02
- Suitable for procurementBWDKThermostats, IB thermostats, andDry-type transformer thermostatCustomers who purchase spare parts.
- Function suffixes affect communication, analog output, fan control, and alarm output.
- Before requesting a quote, we recommend providing the full model number, photos of the terminals, the cabinet door cutout dimensions, and the intended use of the product.
When purchasing temperature controllers for dry-type transformers, the functional suffix following the model number is very important. If the purchaser simply specifies “temperature controller manufacturer” or “dry-type transformer temperature controller,” it is difficult for suppliers to accurately determine whether features such as RS485 communication, 4–20 mA output, fan control, alarms, or trip outputs are required. Innotongda can assist customers in confirming the required features based on the model number, on-site photos, and installation dimensions provided by the customer.
Confirmation of Model Suffixes for Dry-Type Transformer Temperature Controllers
Dry-type transformer temperature controllers such as the BWDK and IB models have different configurations depending on their suffixes. The BWDK-326 series can be configured with features such as 4–20 mA analog current output and RS-485/RS-232 serial communication, depending on the suffix. Please provide the complete model number when placing an order.
If only certain models of the old thermostat are available, please take clear photos of the panel, nameplate, terminals, and sensor connectors. Verifying the model suffix is not intended to facilitate communication, but rather to prevent purchasing a product that lacks communication capabilities, has no output, or has incompatible terminals.
Procurement Checklist for Dry-Type Transformer Temperature Controllers
Please provide the old model number, operating voltage, number of sensors, number of fans, alarm outputs, trip outputs, whether the system will be connected to a backend system, and the dimensions of the cabinet door cutout. For new projects, please also include drawings and technical specifications.
If customers need English-language materials or datasheets, they can specify this when requesting a quote. We will provide the materials based on the confirmed model and will not apply the specifications of a single model to all thermostats.
Request for Quotation for Replacement of Used Temperature Controllers for Dry-Type Transformers
When replacing old parts, the most valuable information is photos of the terminals and the wiring on the back. Terminal numbers, wire numbers, sensor connectors, fan output wires, and alarm wires can all influence the decision to replace a part.
If it is not possible to shut off the power and remove the unit on-site, please first provide photos of the front of the cabinet door, the interior of the cabinet, and any exposed cables. We will first determine the product model and then let the customer know what additional information is needed.
Discussions on Quotations from Dry-Type Transformer Temperature Controller Manufacturers
Before requesting a quote from a manufacturer, you should confirm the actual features of the product, rather than just its name. We also recommend specifying the quantity, delivery date, whether the order is urgent, whether English documentation is needed, and whether the purchase is for export.
Innotongda will provide the relevant documentation and quotations based on the models, features, and quantities confirmed by both parties. Where wiring, installation dimensions, or communication requirements are concerned, the information confirmed by both parties shall prevail.
Differences Between Project-Specific and Spare Parts for Dry-Type Transformer Temperature Controllers
Project specifications focus more on drawings, order quantities, technical documentation, and delivery schedules, while spare part replacements focus more on old models, wiring, installation dimensions, and on-site compatibility. When requesting a quote, clearly state the intended use so that suppliers can more quickly identify the key points in the documentation.
If you need both spare parts and project products, we recommend listing the quantities, delivery dates, and documentation requirements separately. We will confirm these based on their specific uses and will not apply a single model or set of specifications to all procurement requests.
| Confirm Project | Suggestions | corresponds English -ity, -ism, -ization |
| Full Model Number | Complete model numbers and suffixes for BWDK or IB | Confirm the Product Direction |
| Photos from the Scene | Nameplates, terminals, cabinet door cutouts | Determining Installation and Replacement |
| functional requirements | Communication, 4–20 mA, Alarms, Trip | Verify Output and Data |
| Purchase Quantity | Number of spare parts or number of items | Quotes and Delivery Times |
Confirmation of Information and Pricing
To ensure that the quote more closely matches your actual procurement needs, we recommend that you clearly specify the product name, full model number, quantity, intended location of use, whether the product is a replacement for an existing item, whether English documentation is required, and your expected delivery date when making initial contact. If the product is to be used as part of a project, you may also provide drawings, technical specifications, and packaging and shipping requirements.
Innotongda will provide documentation and quotations based on the models, configurations, and technical requirements confirmed by both parties. This will reduce the need for repeated verification and minimize the risk of purchasing incompatible products.
Procurement Contacts and Responses to Inquiries
If the buyer already has photos of the used parts, they can simply send the images and quantities; if this is for a new project, they can first send the drawings, technical specifications, or a product list. We will first confirm the product details and then respond with the relevant materials, pricing, and any additional information required.
Related FAQs
1. Can I request a quote for a dry-type transformer temperature controller even if I don’t have the full model number?
Sure. Please first provide the nameplate, terminals, installation location, and photos of the site, and we’ll help make a preliminary assessment.
2. Do I have to provide the quantity before requesting a quote?
Please provide a quote. The quantity will affect the price, delivery time, and packaging method.
3. Can you provide materials in English?
Once the model and configuration have been confirmed, we can provide English documentation or a quote as needed.
4. Do we need drawings to replace old parts?
It is preferable to have drawings; if drawings are not available, please provide photos of the old part and installation dimensions first.
5. How long does it take to get a price quote?
Processing is usually faster when the model number, quantity, and photos are complete; if the information is incomplete, it must first be supplemented and confirmed.
Request Information and a Quote:请提供产品型号、数量、使用场景、目的地、现场铭牌或安装照片。电话:13959168359,邮箱:2969488289@qq.com。








