benlong 
ACB comprehensive test bench
The ACB comprehensive test bench performs four verifications on air circuit breakers from 1600A to 6300A in one station: loop resistance testing, insulation & withstand voltage testing, current characteristic testing, and temperature rise & power consumption measurement. Covers the full large-frame range: 1600A–6300A Tests run individually or in sequence per your test plan Aligned with...
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MCCB Laboratory Integrated Testing bench
An integrated test bench capable of performing magnetic trip testing, thermal calibration, and long-duration thermal calibration.
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MCB semi-automatic thermal trip calibration bench Type-A
MCB semi‑automatic thermal trip calibration bench Type‑A with shift mechanism for multi‑model support. Programmable overload current (up to 200A), real‑time HMI, IEC 60898‑1 compliant. Ideal for labs and production QC. Semi‑auto operation reduces operator error.
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MCB semi-automatic thermal trip calibration bench Type-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.
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MCCB manual magnetic trip test bench
Custom MCCB manual magnetic trip test bench for 125A/250A frames (custom up to 1600A). Programmable 5‑10× In current, ±1ms timing, pass/fail indication. Non‑standard designs available for larger frames, 4‑pole simultaneous testing, and auxiliary contact verification.
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MCB long time thermal calibration bench
MCB long time thermal calibration bench for overload testing per IEC 60898‑1. Multi‑station (4‑16), high‑stability current (0‑500A, THD
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