benlong 
Bàn hiệu chuẩn ngắt nhiệt bán tự động MCB Loại B
MCB semi‑automatic thermal trip calibration bench Type‑B with insertable test cards for fast changeover between different MCB types. Programmable overload current (up to 200A), digital timer (±0.1%), USB data export. Ideal for labs and production lines testing multiple MCB families.
MCB Semi‑Automatic Thermal Trip Calibration Bench Type‑B
The MCB Semi-Automatic Thermal Trip Calibration Bench Type B is a very advanced system that can be used to accurately calibrate thermal trips in MCB’s (Miniature Circuit Breakers). This test system closely mimics actual working conditions, has an easy to use interface, and enables operators to conduct their tests with maximum efficiency.
The type B component includes a series of insertable cards, enabling you to perform multiple types of tests — that is, quickly re-configuring your tests for different MCB Types, Current ratings, and Test Standards. The accuracy & reliability of this equipment will meet the requirements of the IEC 60898-1 standards (therefore, making this equipment a requirement for MCB manufacturers & Maintenance Teams).
This equipment is designed to enhance the accuracy of MCB’s; therefore, it can be used in both the laboratory or field environment.
Standard delivery: 30-45 days | Insertable card system | Semi‑auto operation
What is an MCB Semi‑Automatic Thermal Trip Calibration Bench Type‑B?
The MCB Semi-Automatic Thermal Trip Calibration Bench, Type B, is a multi-functional system used to test the overload (thermal) trip features of miniature circuit breakers. Also, it is between two types of benches, fully manual benches (type A with shift mechanisms) and completely automatic inline testers. Automated tests for current generation and measuring trip times are completed with Type B; however, the operator is responsible for loading/unloading circuit breakers and selecting test cards. The most significant part of Type B is that the calibration uses insertable test cards, pre-programmed modules having the parameters necessary for testing an MCB family group (e.g., current multipliers, time window, trip curve). The operator will insert the correct card into the test slot, load the MCB, and press the start button; at which point, the bench provides the correct overload current to the MCB and notes if it has passed or failed on the display. The result is an elimination of human error in manually entering parameters and expedited changeover times between test circuits. This makes Type B the ideal solution for both lab environments and production lines that routinely test multiple types of MCBs. Being a custom, non-standard solution, we will provide you with a complete set of test cards designed specifically for your MCB series and current rating.
Pre‑programmed cards for different MCB families – plug‑and‑play parameter loading.
Automated current application and timing; operator loads MCB and selects card.
Large digital display, pass/fail LED, and test count.
Supports 1.13× In (no‑trip) and 1.45× In (trip within time) tests.
Key Features & Calibration Process
Thông số kỹ thuật
| Test current range | Up to 200A (customizable), accuracy ±1% |
|---|---|
| Timing accuracy | ±0.1% of reading, range 0.1s – 9999s– |
| Test card slots | Accepts up to 4 insertable cards (swappable)– |
| Card programming | Each card stores: test current multiplier (1.13×, 1.45×, etc.), time window, product ID– |
| HMI | Color touch screen or large digital display (optional)– |
| Dữ liệu đầu ra | USB port for result export (CSV)– |
| Fixture | Universal screw clamps for 1P‑4P MCBs– |
| Nguồn điện | 220V ±10% 50Hz– |
| Dimensions (L×W×H) | Approx. 600mm × 500mm × 300mm (desktop)– |
| Weight | Approx. 25kg– |
Ưu điểm kỹ thuật cốt lõi
Insertable cards eliminate parameter errors
Operators don’t have to manually input test current or trip windows for each type of MCB anymore. The parameters specific to every product family are pre‑validated on each card. Simply insert the card, load the MCB and press start – everything else is done for you by the bench. This reduces changeovers from manually entering parameters by 80%.
Fast changeover for mixed production
To change from 10A B-curve MCBs to 32A C-curve MCBs, simply install the MCB card for either style and change the fixture as needed. The bench will automatically set the proper test current and acceptance window – you will have no programming to do. You can complete the change in less than 2 minutes.
Consistent, automated testing
Type B locks are different from manual benches as the current is locked onto the card inserted, so it’s impossible for operator error of setting up for the wrong current. The bench will also log the card ID for traceability to allow for tracking of each test that has been conducted with the corresponding test parameters used.
Portable & lab‑grade accuracy
Thanks to its compact desktop size, this movable bench can be utilized in multiple workstations and on the field without losing any of its current accuracy (±1%) and time accuracy (±0.1%). Therefore it is ideal for certifying equipment that has been tested.
Customer Success Story – MCB Testing Laboratory
A third-party testing laboratory had a need to daily calibrate 15 types (with many types of current ratings/trip curves) of MCB’s. Because this process could be completed manually by entering parameters, there was a high likelihood for error, as well as very slow completion time. Benlong provided a Type B Semi-Automatic MCB Calibrator with a series of 15 insertable cards. Results at the end of two months were:
The bench paid for itself in 6 months through reduced rework and increased throughput.
Ứng dụng và tích hợp
Custom Engineering & Delivery
Request a Custom Type‑B Calibration Bench Quote
Please supply us with your MCB specs and the test card specs that you need. Our engineers will then create the insertable cards for your range of products, as well as a semi-automated bench design, complete with a full ROI analysis.
WhatsApp: +86 150 5837 0007 | Email: xsb@benlongkj.cn | Hỗ trợ tiếng Anh và tiếng Trung
Why Choose Benlong for Type‑B Calibration Benches?
- Hơn 15 năm kinh nghiệm thiết kế MCB test equipment for manufacturers and labs
- Proven insertable card technology for error‑proof parameter loading
- Semi‑automatic operation – balances speed and flexibility
- Custom card programming for your exact MCB portfolio
- Dịch vụ toàn cầu và hỗ trợ phụ tùng thay thế
Standard Bench Includes
A DC constant current output of 200A for up to 5 seconds. Digital timer +/− 0.1% precision. Four (4) insertable cards for testing; includes two (2) pre-programmed test cards. Universal circuit breaker (MCB) test fixture. USB port for exporting data. Safety enclosure surrounding machine. Certification of calibration standardized by manufacturer. Comes with a 1-year warranty.
Câu hỏi thường gặp
Type A has a manual current setting and a mechanical changeover to adjust to different widths of MCBs, whereas Type B has a fixed size fixture and has test cards that can be inserted to set parameters automatically. You would select Type B if you will be testing multiple types of MCB electrical specifications (ratings, curves) but with the same basic physical size; you would select Type A if you will be testing various physical sizes of MCBs but with only a few electrical variants.
4 slots in a bench. Extra cards can be stored in a case (to be swapped as needed). You can have up to 20 cards programmed in advance for your product portfolio.
With our software utility for windows, you can create or program cards according to your specifications (current underrates, time periods, and product identifiers) while being free from assistance within Engineers when setting up additional MCAs.
Optional. A Barcode scanner may be included, allowing the correct test card to be automatically selected by referencing the corresponding MCB barcode. This will eliminate any chance of an error occurring when selecting a card.
1P MCB will be tested to 1.45 times rated current by using the recommended test procedure. The test is to be carried out for 45–60 seconds (trip time) before loading/unloading is complete and includes an automatic trip and display of results at trip via the use of a timer.
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