Testing & Calibration Terminal Blocks
Short-circuitable test terminal blocks for safe calibration, verification, and replacement of fiscal meters.
Overview & Applications
Cabur short-circuitable test terminal blocks (MCM and MCT series) are essential electrical safety devices installed between measurement transformers (CT/VT) and fiscal electricity meters.
They allow technicians to inject calibration signals, measure secondary currents, and replace meters without interrupting the primary circuit and without opening the current transformer secondary windings (preventing lethal overvoltages).
Manufactured with high-dielectric self-extinguishing polyamides and gold-plated test sockets, they are certified according to EN 60947-7-1 and fiscal customs sealing requirements.
Key Strengths
Safe CT Secondary Short-Circuiting
Eliminates dangerous overvoltages during meter maintenance.
Customs Sealing Provision
Compliant with customs and utility fiscal anti-tamper requirements.
Integrated Test Sockets
Direct connection for reference standard instruments and calibrators.
High Insulation Voltage
Rated up to 1000V AC/DC according to EN 60947-7-1.
Modular Cabur Architecture
DIN rail mounting with MCM2/3 and MCT series.
Technical Specifications & Parameters
Datasheets & Catalogs
Browse and download official brochures, calibration certificates, and technical manuals in PDF format.
Need More Information?
Our technical team is available to advise you on the most suitable solution.