Page 790 - Din prodcuts 2020

8/50 ELECTRICAL INSTALL ATION SOLUTIONS FOR BUILDINGS 2CHC 420 001 C0201

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Energy efficiency
Sensors and Accessories

Open-core sensors Maximum secure insertion of wiring cables is
The open-core sensors are able to measure all guaranteed by this sensors solution.
types of current, whether AC, DC or mixed, up
to 80 A in TRMS, enabling exact and effective Everything is built into an 18 or 25 mm wide unit
Open-core sensors measurements. As each sensor is equipped to enable precise and effective measurements.
Installation manual with its own microprocessor for processing the This makes these CMS sensors the most compact
signal, the measurement data is transmitted and most powerful
digitally to the Control Unit via bus interface, on the market.
maximizing data reliability. Disturbances
like those experienced with analog data Depending on the application, solid-core sensors
now most definitely belong to the past. are chosen between up to four
different mounting options to making this
With this solution a faster cabling is solution as flexible as possible.
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guaranteed, since wiring cables are directly
inserted in the sensors without the aid of The solid-core units feature an enclosed structure
a screwdriver. No special tools are needed and AC measurement accuracy*
for the entire connection process. of ≤ ± 0.5 %, and are therefore suitable for all
applications in which maximum-precision
With AC accuracy* of ≤ ±1.0 %, they can be measurement is crucial.
used in a multitude of applications without any
problem: System pro M, DIN rail and Cable tie. * All accuracy specifications refer to the rel-
evant full-scale value and apply to 25 °C.
Thanks to their U shape, the open-core Accessories
Solid-core sensors sensors can be retrofitted to existing The Control Unit of the circuit monitoring system
Installation manual installations, without the need to discon¬nect need a flat cable for receive branches
the cabling or shut down the equipment, measurements from sensors. The flat cable
being the key for brownfield extension.
should be a 4-pin cable, flexible in length. Flat
cable are available in several lengths in order to
Solid-core sensors
Alternating (AC), direct (DC) or mixed (TRMS) cover the most kind of application. Cables with
the greater length are designed with the purpose
currents – the CMS sensors monitor of being adapted, through cutting,
and measure all types of current over to the various lengths required by the
a measurement range of up to 160 A (TRMS). applications.
They even measure harmonic components in the
signal curve. The measurements are digitally
transmitted through bus interface, enabling
reliability of data and removing disturbance
effects.