OverviewThe CTAC series measuring current transformers convert AC and locating currents into evaluable measurement signals for residual current monitors, residual current monitoring systems and insulation-fault locators (RCM / RCMS / EDS). They are highly sensitive and connect to the respective devices via a two‑wire cable. The CTAC series measures locating currents generated by PGH locating current injectors or an ISOMETER® iso685.
Features- Designed for use with RCMS460/490, RCM420 and EDS series insulation-fault locators
- Available in several inner diameters: 20 mm, 35 mm, 60 mm, 120 mm, 210 mm
- Mounting options: mounting brackets or DIN-rail; snap-on mounting available for specific types
Applications- Signal conversion for residual current monitoring and evaluation
- Integration in insulation-fault location systems for IT networks (measurement of locating currents)
- Connection to RCM / RCMS monitoring equipment and EDS insulation-fault locators
VariantsType | Mounting | Inside diameter | Art. No.
CTAC20 | Mounting brackets, DIN rail | 20 mm | B98110005
CTAC20/01 | Mounting brackets, DIN rail | 20 mm | B98110006
CTAC35 | Mounting brackets, DIN rail | 35 mm | B98110007
CTAC35/01 | Mounting brackets, DIN rail | 35 mm | B98110008
CTAC60 | Mounting brackets, DIN rail | 60 mm | B98110017
CTAC120 | Mounting brackets | 120 mm | B98110019
CTAC210 | Mounting brackets | 210 mm | B98110020
Optional AccessoriesType designation | Art. No.
Snap-on mounting for CTAC20 and CTAC20/01 | B91080111
Snap-on mounting for CTAC35 and CTAC35/01 | B91080112
(snap-on mounting included in scope of delivery for relevant types)
Downloads (document titles)CTAC — CE Declarations of conformity (CTAC)
CTAC series — Manual (EN)
CTAC series — Datasheet (EN)
Selection guide measuring current transformers — Product overview (EN)
TÜV NORD - Certificate (relevant product groups)
UKCA - CTAC — Declaration of conformity
Technical specifications- Product family: LINETRAXX® CTAC series (measuring current transformers)
- Primary function: Convert AC and locating currents into measurement signals for RCM/RCMS and EDS devices
- Compatible devices: RCM series, RCMS series, EDS series insulation-fault locators
- Connection: Two-wire cable to respective devices
- Inner diameters: 20 mm, 35 mm, 60 mm, 120 mm, 210 mm
- Mounting: Mounting brackets; DIN-rail or snap-on mounting depending on type
- Article numbers: see variants table (e.g. B98110005 for CTAC20)