benlong 
MCCB long time thermal calibration bench
Custom MCCB long time thermal calibration bench for overload testing per IEC 60947‑2. High‑stability current (
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Magnetic ring current test bench
Automatic magnetic ring current test bench with HIOKI tester (15‑50mA). Fully automated feeding, wire connection, test, and 10‑bin sorting (9 pass + 1 NG). 20,000 pcs/8h, OEE data, bilingual HMI. Ideal for RCCB/RCBO magnetic core grading.
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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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Electric meter aging test bench
Three‑phase electric meter aging test bench with ZN‑D3000 precision power source. High‑density vertical rack (up to 96 positions), real‑time register monitoring, communication testing (RS485/optical), automatic protection, data logging. Reduces infant mortality, ensures 15‑year service life. IEC/ANSI compliant.
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MCCB Tripping mechanism test machine
Automatic MCCB tripping mechanism test machine with rotary indexing turntable. Vision‑based closing/opening angle measurement (±0.1°), contact & tripping force testing, peak force analysis, release verification, and QR laser marking for full traceability. 3‑5 sec/part. Ideal for high‑volume MCCB production.
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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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