{"id":1160,"date":"2026-07-18T06:17:50","date_gmt":"2026-07-18T06:17:50","guid":{"rendered":"https:\/\/benlongkj.com\/?post_type=product&p=1160"},"modified":"2026-07-18T06:17:53","modified_gmt":"2026-07-18T06:17:53","slug":"mccb-lab-test-machine-product","status":"publish","type":"product","link":"https:\/\/benlongkj.com\/vi\/san-pham\/mccb-lab-test-machine-product\/","title":{"rendered":"MCCB Laboratory Integrated Testing bench"},"content":{"rendered":"
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MCCB testing \u00b7 Laboratory equipment<\/div>\n

MCCB Laboratory Integrated Testing Bench for Magnetic Trip, Thermal & Long-Term Calibration<\/h1>\n

The MCCB laboratory integrated testing bench combines three MCCB protection tests in a single unit: the magnetic trip test (instantaneous), thermal calibration (time-delay), and long-term calibration (long-time-delay). One test function is active at a time, and the bench covers a wide output range \u2014 AC300\u201310000A for instantaneous testing, AC100\u20132000A for time-delay, and AC100\u20131000A for long-time-delay \u2014 so a single bench serves your full molded case circuit breaker range instead of three separate test stations.<\/p>\n

The bench ships with two pneumatic fixture sets (250A-type and 400\/630A-type) for instantaneous and time-delay testing, plus a complete long-term test lead package. Power source accuracy is \u00b13% for instantaneous and \u00b11.5% for time-delay testing. Core components come from established brands \u2014 Chint contactors, Xingchen cylinders, a Tonghui transformer, and a Shunhang instantaneous power supply \u2014 for dependable day-to-day laboratory operation.<\/p>\n

3 test functions in one bench | 250A & 400\/630A fixtures included | Accuracy \u00b11.5% (delay) \/ \u00b13% (instantaneous)<\/span><\/p>\n<\/div>\n

\"MCCB<\/p>\n
MCCB laboratory integrated testing bench \u2014 three test functions in one unit<\/div>\n<\/div>\n<\/div>\n
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What is an MCCB Laboratory Integrated Testing Bench?<\/h2>\n

An MCCB laboratory integrated testing bench is a consolidated test station that verifies the protection characteristics of molded case circuit breakers across three test types that would traditionally require three separate benches. The magnetic trip test applies a high instantaneous current (AC300\u201310000A) to verify the breaker\u2019s short-circuit tripping behavior; thermal calibration applies a time-delay current (AC100\u20132000A) to verify the bimetal-based overload characteristic; and long-term calibration applies a sustained lower current (AC100\u20131000A) for extended-duration verification. The bench operates one function at a time, selected by the operator. For instantaneous and time-delay tests, the breaker is held and contacted by pneumatic fixtures \u2014 a 250A-type and a 400\/630A-type fixture set are both included as standard. For standard long-term tests, the bench outputs through two 500 mm\u00b2 copper bars, and the operator connects the supplied test leads manually. This one-bench architecture is designed for MCCB manufacturers\u2019 laboratories, quality departments, and R&D teams that need calibration-grade accuracy without dedicating floor space and budget to three separate test stations.<\/p>\n

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3-in-1 test coverage<\/strong>
\nMagnetic trip, thermal calibration, and long-term calibration in one bench (one function at a time).<\/div>\n
Ph\u1ea1m vi d\u00f2ng \u0111i\u1ec7n r\u1ed9ng<\/strong>
\nInstantaneous AC300\u201310000A \u00b7 time-delay AC100\u20132000A \u00b7 long-time-delay AC100\u20131000A.<\/div>\n
Calibration-grade accuracy<\/strong>
\nPower source accuracy of \u00b13% (instantaneous) and \u00b11.5% (time-delay).<\/div>\n
Dual fixture sets included<\/strong>
\n250A-type and 400\/630A-type pneumatic fixtures ship with the bench as standard.<\/div>\n<\/div>\n<\/div>\n
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Quy tr\u00ecnh ki\u1ec3m tra v\u00e0 c\u00e1c giai \u0111o\u1ea1n ch\u00ednh<\/h2>\n
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\"Kh\u1ea3<\/p>\n
T\u00ecnh b\u00e1o & Kh\u1ea3 n\u0103ng quan s\u00e1t<\/div>\n<\/div>\n
\"Hi\u1ec7u<\/p>\n
Hi\u1ec7u qu\u1ea3 v\u00e0 t\u00ednh b\u1ec1n v\u1eefng<\/div>\n<\/div>\n
\"T\u00edch<\/p>\n
Thi\u1ebft k\u1ebf & T\u00edch h\u1ee3p<\/div>\n<\/div>\n
\"\u0110\u1ed9<\/p>\n
An to\u00e0n & \u0110\u1ed9 tin c\u1eady<\/div>\n<\/div>\n<\/div>\n<\/div>\n

Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt<\/h2>\n
Integrated MCCB testing bench: magnetic trip (instantaneous), thermal calibration (time-delay), and long-term calibration in one unit. Dual fixture sets, complete lead package, branded core components.<\/div>\n
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S\u1ea3n ph\u1ea9m \u00e1p d\u1ee5ng<\/th>\nMCCB \u2014 250A-type and 400\/630A-type fixtures included<\/td>\n<\/tr>\n
C\u00e1c h\u00e0m ki\u1ec3m th\u1eed<\/th>\nMagnetic trip test (instantaneous) \/ Thermal calibration (time-delay) \/ Long-term calibration \u2014 one function active at a time<\/td>\n<\/tr>\n
Output current range<\/th>\nInstantaneous: AC300\u201310000A | Time-delay: AC100\u20132000A | Long-time-delay: AC100\u20131000A<\/td>\n<\/tr>\n
Power source accuracy<\/th>\n\u00b13% (instantaneous) | \u00b11.5% (time-delay)<\/td>\n<\/tr>\n
Test connection<\/th>\nPneumatic fixture contact for instantaneous & time-delay tests; standard test output via 2 \u00d7 500 mm\u00b2 copper bars with manual lead connection<\/td>\n<\/tr>\n
Long-term test leads (included)<\/th>\n120 mm\u00b2 \u00d7 4, 240 mm\u00b2 \u00d7 4, 185 mm\u00b2 \u00d7 8 \u2014 each 2 m long; additional leads available on request (please specify the exact product model)<\/td>\n<\/tr>\n
Key components<\/th>\nChint contactors \u00b7 SMC cylinders \u00b7 Tonghui transformer \u00b7 Chroma power supply<\/td>\n<\/tr>\n
Ngu\u1ed3n \u0111i\u1ec7n<\/th>\n380V, 120kW<\/td>\n<\/tr>\n
Machine dimensions<\/th>\nL1800 \u00d7 W1500 \u00d7 H1900 mm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Quy tr\u00ecnh chi ti\u1ebft<\/h2>\n
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A typical test cycle on the integrated bench runs as follows:<\/p>\n

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  1. Select the test function<\/strong> \u2013 Choose instantaneous, time-delay, or long-time-delay mode (only one function can be used at a time).<\/li>\n
  2. Mount the MCCB<\/strong> \u2013 Place the breaker in the matching fixture: 250A-type or 400\/630A-type.<\/li>\n
  3. Make the connection<\/strong> \u2013 The pneumatic fixtures contact the breaker automatically for instantaneous and time-delay tests; for standard long-term tests, the operator connects the supplied test leads to the 2 \u00d7 500 mm\u00b2 copper bar outputs.<\/li>\n
  4. Run the test<\/strong> \u2013 The bench applies the set current within the calibrated range and the trip behavior of the breaker is verified.<\/li>\n
  5. Unload and continue<\/strong> \u2013 Remove the tested breaker and proceed with the next unit or switch to another test function.<\/li>\n<\/ol>\n<\/div>\n

    Core Technical Advantages (Laboratory-Grade Design)<\/h2>\n
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    Three benches consolidated into one<\/h4>\n

    Magnetic trip, thermal calibration, and long-term calibration share one cabinet, one power connection, and one operator position \u2014 saving laboratory floor space and equipment investment compared with three separate test stations.<\/p>\n<\/div>\n

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    Full-range MCCB coverage<\/h4>\n

    With instantaneous output up to AC10000A and dual fixture sets for 250A and 400\/630A frames, one bench covers the trip verification needs of a complete MCCB product lineup.<\/p>\n<\/div>\n

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    Calibration-grade source accuracy<\/h4>\n

    \u00b11.5% accuracy on time-delay testing and \u00b13% on instantaneous testing give repeatable, trustworthy calibration results for laboratory and quality-control use.<\/p>\n<\/div>\n

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    Proven branded core components<\/h4>\n

    Chint contactors, Xingchen cylinders, a Tonghui transformer, and a Shunhang instantaneous power supply are used throughout \u2014 established brands that simplify maintenance and spare parts supply.<\/p>\n<\/div>\n<\/div>\n

    \u0110\u01b0\u1ee3c c\u00e1c nh\u00e0 l\u00e3nh \u0111\u1ea1o ng\u00e0nh tin t\u01b0\u1edfng<\/span><\/p>\n
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    \"ABB\"<\/div>\n
    \"DELIXI\"<\/div>\n
    \"EKF\"<\/div>\n
    \"KRIPAL\"<\/div>\n
    \"HPL\"<\/div>\n
    \"CHAC\"<\/div>\n
    \"Schneider\"<\/div>\n
    \"NH\u00d3M<\/div>\n
    \"SUNIR\"<\/div>\n
    \"Bevone\"<\/div>\n
    \"\u0110\u01b0\u1eddng\"<\/div>\n
    \"HUYU\"<\/div>\n
    \"RAAD\"<\/div>\n
    \"WALTONE\"<\/div>\n
    \"HAVELLS\"<\/div>\n
    \"\u0110i\u1ec7n<\/div>\n<\/div>\n<\/div>\n

    \u1ee8ng d\u1ee5ng v\u00e0 t\u00edch h\u1ee3p<\/h2>\n
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    MCCB production QC laboratories<\/strong> \u2013 Routine verification and calibration of trip characteristics<\/div>\n
    Type testing & R&D<\/strong> \u2013 Instantaneous, time-delay, and long-time-delay characteristic verification during development<\/div>\n
    Incoming & outgoing inspection<\/strong> \u2013 Sample-based trip verification for quality assurance<\/div>\n
    Multi-frame product ranges<\/strong> \u2013 250A and 400\/630A frames handled on one bench with the included fixture sets<\/div>\n<\/div>\n<\/div>\n

    Thi\u1ebft k\u1ebf v\u00e0 cung c\u1ea5p theo y\u00eau c\u1ea7u<\/h2>\n
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    1. Requirement confirmation<\/strong> MCCB frame sizes, test standards & current ranges<\/div>\n
    2. Technical proposal<\/strong> Bench configuration, fixtures & lead package<\/div>\n
    3. Manufacturing & calibration<\/strong> Built and calibrated at Benlong factory<\/div>\n
    4. Ch\u1ea5t b\u00e9o tr\u01b0\u1edbc<\/strong> Verification with customer sample breakers<\/div>\n
    5. L\u1eafp \u0111\u1eb7t v\u00e0 v\u1eadn h\u00e0nh th\u1eed<\/strong> T\u1ea1i ch\u1ed7<\/div>\n
    6. B\u00e0i ki\u1ec3m tra SAT cu\u1ed1i k\u1ef3 & hu\u1ea5n luy\u1ec7n<\/strong> B\u00e1o c\u00e1o nghi\u1ec7m thu<\/div>\n<\/div>\n
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    Request an MCCB Testing Bench Quote<\/h2>\n

    Tell us your MCCB frame sizes, test standards, and current ranges. Our engineers will configure the integrated testing bench with the right fixtures and test lead package for your laboratory.<\/p>\n

    Li\u00ean h\u1ec7 ngay<\/a><\/p>\n

    WhatsApp: +86 150 5837 0007 | Email: xsb@benlongkj.cn | H\u1ed7 tr\u1ee3 ti\u1ebfng Anh v\u00e0 ti\u1ebfng Trung<\/p>\n<\/div>\n

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    Why Choose Benlong for MCCB Test Equipment?<\/h3>\n