{"id":61,"date":"2026-06-01T10:37:56","date_gmt":"2026-06-01T10:37:56","guid":{"rendered":"https:\/\/khkrh7q1ur.wpdns.site\/product\/mccb-manual-thermal-calibration-bench\/"},"modified":"2026-06-09T23:24:03","modified_gmt":"2026-06-09T23:24:03","slug":"mccb-manual-thermal-calibration-bench-product","status":"publish","type":"product","link":"https:\/\/benlongkj.com\/ja\/product\/mccb-manual-thermal-calibration-bench-product\/","title":{"rendered":"MCCB\u624b\u52d5\u71b1\u6821\u6b63\u30d9\u30f3\u30c1"},"content":{"rendered":"
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Manual \u00b7 Flexible fixture<\/div>\n

Manual MCCB Long\u2011Time Thermal Calibration Bench<\/h1>\n

This MCCB calibration bench has been developed to provide an accurate and reproducible measurement of thermal delay performance across a full range of MCCB ratings (100A to 1600A). The cabinet is designed to enable a technician to adjust and confirm long term trip characteristics with precision and confidence. Through the provision of stable heating current, intuitive operation, and clear real-time monitoring, the calibration bench allows for the production of consistent calibration results. The calibration bench’s robust design, focus on safety and fixture system flexibility make it a suitable choice for laboratory testing as well as field service work. In addition this versatile calibration platform simplifies the flow of work, increases the reliability of calibration equipment and provides accurate calibration results for various types of MCCB equipment.<\/p>\n

The bench is designed with a simple manual loading mechanism and has features helpful for performing the tests. Included with this test bench are a programmable constant current source (up to 800A +) the digital timer with \u00b10.1% accuracy, and an easy-to-use human machine interface (HMI). The Operator simply sets the desired test current (i.e., 100% In = no trip; 135% In = trip test) and watches the trip time displayed on the HMI after applying that current.
\nThe adjustable bi-metal screw can be manually adjusted using an optional tool while monitoring the live trip time.
\nThis test bench can accommodate all types of MCCB frame sizes (from 100A to 1600A) and pole configurations (from 1P to 4P) using quick-change adapters, making it an excellent tool for the examination of MCCB during production QC, service maintenance, and type testing by laboratories.<\/p>\n

Standard delivery: 30-45 days | Up to 1600A | Flexible fixture system<\/span><\/p>\n<\/p><\/div>\n

\n \"MCCB<\/p>\n
Manual thermal calibration station (actual product)<\/div>\n<\/p><\/div>\n<\/p><\/div>\n
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What is an MCCB Manual Thermal Calibration Bench?<\/h2>\n

An MCCB thermal calibration manual bench is a setup to prove and set the overload (thermal) trip characteristic for molded case circuit breakers. The manual bench differs from a fully automated test bench, in that the operator loads the MCCB manually onto the bench, sets the test current manually or via HMI, observes the trip time on a digital timer, and optionally adjusts the bimetallic screw of the MCCB using a tooling method. The bench contains a stable, constant current source (i.e., low drift and low distortion) and a very versatile and adaptable fixture system that will accommodate numerous frame sizes (i.e., 100A to 1600A) and pole configurations. The bench will meet IEC 60947\u20112 overload testing methods for molded case circuit breakers and is ideal for production sampling, maintenance shops, as well as laboratories where flexibility and cost\u2011effectiveness are major concerns. As a custom solution that is not of standard design\/configuration, we will customize the fixture and the current range according to the series of the MCCB you are testing.<\/p>\n

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\n Wide current range<\/strong><\/p>\n

Up to 800A standard, customizable to 1600A or higher.<\/p>\n<\/p><\/div>\n

\n Flexible fixture system<\/strong><\/p>\n

Quick\u2011change adapters for 100A\u20111600A frames, 1P\u20114P.<\/p>\n<\/p><\/div>\n

\n Stable heating current<\/strong><\/p>\n

Closed\u2011loop regulation, drift <2% over 8 hours, THD <3%.<\/p>\n<\/p><\/div>\n

\n Real\u2011time monitoring<\/strong><\/p>\n

Digital timer (\u00b10.1%) displays trip time; HMI shows current, status.<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n

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Key Features & Calibration Process<\/h2>\n
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\n \"Intelligence<\/p>\n
\u30a4\u30f3\u30c6\u30ea\u30b8\u30a7\u30f3\u30b9\u3068\u53ef\u8996\u6027<\/div>\n<\/p><\/div>\n
\n \"Efficiency<\/p>\n
\u52b9\u7387\u6027\u3068\u6301\u7d9a\u53ef\u80fd\u6027<\/div>\n<\/p><\/div>\n
\n \"Design<\/p>\n
\u8a2d\u8a08\u3068\u7d71\u5408<\/div>\n<\/p><\/div>\n
\n \"Safety<\/p>\n
\u5b89\u5168\u6027\u3068\u4fe1\u983c\u6027<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n

\u6280\u8853\u4ed5\u69d8<\/h2>\n
Manual thermal calibration bench for MCCB overload testing. Programmable constant current (up to 1600A), flexible fixture, digital timer (\u00b10.1%), IEC 60947\u20112 compliant.<\/div>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n
Supported MCCB frames<\/th>\n100A \u2013 1600A (customizable)<\/td>\n<\/tr>\n
Test current range<\/th>\nUp to 800A (standard); up to 1600A or higher (optional)–\n <\/td>\n<\/tr>\n
\u73fe\u5728\u306e\u7cbe\u5ea6<\/th>\n\u00b11% of reading, stability <2% drift over 8 hours–\n <\/td>\n<\/tr>\n
Timing accuracy<\/th>\n\u00b10.1% of reading (digital timer)–\n <\/td>\n<\/tr>\n
\u30c6\u30b9\u30c8\u30e2\u30fc\u30c9<\/th>\nManual current setting (potentiometer) or HMI preset (1.13\u00d7, 1.35\u00d7, etc.)–\n <\/td>\n<\/tr>\n
Fixture system<\/th>\nQuick\u2011change adapters for different frame sizes and pole counts–\n <\/td>\n<\/tr>\n
HMI<\/th>\nColor touch screen (optional) or digital display with knobs–\n <\/td>\n<\/tr>\n
Safety features<\/th>\nOverload protection, over\u2011temperature shutdown, emergency stop–\n <\/td>\n<\/tr>\n
\u96fb\u6e90<\/th>\n380V \u00b110% 50Hz (three\u2011phase)–\n <\/td>\n<\/tr>\n
Dimensions (L\u00d7W\u00d7H)<\/th>\nApprox. 800mm \u00d7 700mm \u00d7 1500mm (customizable)–\n <\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n

\u4e3b\u8981\u306a\u6280\u8853\u7684\u5229\u70b9<\/h2>\n
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Wide compatibility with various MCCB frames<\/h4>\n

Using interchangeable adapter plates and clamps, the fixture system of the bench can be adjusted to hold MCCBs ranging from 100A to 1600A. Within two minutes, a new frame can be attached to the bench; therefore, this fixture is suitable for maintenance facilities and laboratories that test many different types of products.<\/p>\n<\/p><\/div>\n

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Stable, low\u2011drift heating current<\/h4>\n

The use of a closed-loop thyristor control system to maintain a constant current output provides a maintained set point that has been shown to be within +\/- 2% for a period of eight hours or more. Furthermore, there are very low levels of waveform distortion (<\/p>\n<\/p><\/div>\n

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Manual operation with digital precision<\/h4>\n

The operator will load and set up their own test bench manually but will use digital timers to indicate if the sample has passed or failed its duration of time based on trip time windows stored internally in the instrument, thus eliminating any possibility of misinterpreting the timing with an analog stopwatch.<\/p>\n<\/p><\/div>\n

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Rugged construction for field & lab use<\/h4>\n

This bench is designed to be as durable as possible for use in industrial settings as well as offering the precision of a lab. The frame is welded steel, has heavy-duty casters and has been built with protective enclosures to withstand the harshest environments found in your workplace.<\/p>\n<\/p><\/div>\n<\/p><\/div>\n

\n \u696d\u754c\u30ea\u30fc\u30c0\u30fc\u304b\u3089\u4fe1\u983c\u3055\u308c\u3066\u3044\u308b<\/span><\/p>\n
\n
\n \"ABB\"\n <\/div>\n
\n \"DELIXI\"\n <\/div>\n
\n \"EKF\"\n <\/div>\n
\n \"KRIPAL\"\n <\/div>\n
\n \"HPL\"\n <\/div>\n
\n \"CHAC\"\n <\/div>\n
\n \"Schneider\"\n <\/div>\n
\n \"IEK\n <\/div>\n
\n \"SUNIR\"\n <\/div>\n
\n \"Bevone\"\n <\/div>\n
\n \"Weg\"\n <\/div>\n
\n \"HUYU\"\n <\/div>\n
\n \"RAAD\"\n <\/div>\n
\n \"WALTONE\"\n <\/div>\n
\n \"HAVELLS\"\n <\/div>\n
\n \"C&S\n <\/div>\n<\/p><\/div>\n<\/p><\/div>\n
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Customer Success Story \u2013 Switchgear Maintenance Facility<\/h3>\n

After servicing industrial switchgear maintenance facility’s MCCB’s with different brand frame sizes from 250A to 1600A, one of their existing equipment could handle only 800 ampere and used fixed fixtures requiring rewiring by the user, Benlong provided a manual thermal calibration bench equipped with a flexible fixture system as well as 1500 ampere current source capability.<\/p>\n

Results For First Six Months;<\/p>\n

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250\u20111600A<\/strong> Full range coverage<\/div>\n
50%<\/strong> Reduction in setup time per MCCB<\/div>\n
0%<\/strong> Calibration errors due to consistent current<\/div>\n<\/p><\/div>\n

The bench paid for itself in 10 months and became the shop\u2019s primary calibration tool.<\/p>\n<\/p><\/div>\n

\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3068\u7d71\u5408<\/h2>\n
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MCCB\u88fd\u9020\u54c1\u8cea\u7ba1\u7406<\/strong> \u2013 Routine thermal calibration on production lines<\/div>\n
\u73fe\u5834\u30b5\u30fc\u30d3\u30b9\u304a\u3088\u3073\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9<\/strong> \u2013 Portable calibration for installed breakers<\/div>\n
Switchgear repair shops<\/strong> \u2013 Post\u2011repair calibration of MCCBs<\/div>\n
Component testing labs<\/strong> \u2013 Type testing and certification<\/div>\n<\/p><\/div>\n<\/p><\/div>\n

\u30ab\u30b9\u30bf\u30e0\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u3068\u7d0d\u54c1<\/h2>\n
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1. MCCB sample analysis<\/strong> 7-15 days \u00b7 sample breakers, frame sizes, current ratings<\/div>\n
2. Fixture & current source design<\/strong> 15-30 days \u00b7 custom adapters, power stage<\/div>\n
3. Manufacturing & assembly<\/strong> 30\uff5e45\u65e5<\/div>\n
4. Pre\u2011FAT<\/strong> \u30d9\u30f3\u30ed\u30f3\u5de5\u5834\u306b\u3066<\/div>\n
5. \u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3068\u30c8\u30ec\u30fc\u30cb\u30f3\u30b0<\/strong> On-site 2\u20113 days<\/div>\n
6. \u6700\u7d42SAT<\/strong> 2\u20113 days \u00b7 acceptance report<\/div>\n<\/p><\/div>\n
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Request a Custom MCCB Thermal Calibration Bench Quote<\/h2>\n

We need your specifications of MCCB (frame sizes, current rating and pole configuration). Our Engineering team will create a manual thermal calibration test bench with a flexible fixture and the adequate range of current \u2013 including an entire cost benefit analysis.<\/p>\n

\u4eca\u3059\u3050\u304a\u554f\u3044\u5408\u308f\u305b\u304f\u3060\u3055\u3044<\/a><\/p>\n

WhatsApp: +86 150 5837 0007 | \u30e1\u30fc\u30eb: xsb@benlongkj.cn | \u82f1\u8a9e\u3068\u4e2d\u56fd\u8a9e\u3067\u306e\u30b5\u30dd\u30fc\u30c8<\/p>\n<\/p><\/div>\n

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Why Choose Benlong for MCCB Calibration Benches?<\/h3>\n