Brochure/Catalogue

VARITECTOR SPC EX
VARITECTOR SPC EX and ACT20X
Pluggable surge protection and a universal signal converter for C&I
signals in hazardous area applications
Intrinsically safe circuits to limit energy are used in hazardous areas. In these
circuits, the intrinsically safe signal converters with their galvanic isolation and
Ex approved surge arresters provide excellent protection for sensitive control
electronics.
Surge voltages on the eld side of the measurement and control lines can damage
the facility. The VARITECTOR SPC EX can discharge surge voltages in hazardous
area applications (zone 0, 1 and 2). The pluggable arresters conform to the
requirements of the current standards with regards to Ex intrinsic safety.
They also comply with the IEC 61643-21 surge protection product standard and
are certied for protection classes D1, C2 and C3.
The ACT20X-HUI-SAO-LP offers an intrinsically safe input for standard DC signals,
temperature signals and resistance signals. It also isolates the Ex zone from the
safe area. The 12.5 mm wide module is powered via the 4 … 20 mA output.
The global ATEX, IECEx and cULus Ex approvals allow it to be used throughout
the world.
Space saving
The VSPC EX uses less space in the electrical
cabinet, with four binary or two analogue
signals in only 17.8 mm width.
Unlimited protection
The VSPC EX products are special, intrinsically
safe surge arresters. Low Li and Ci values mean
they are not relevant for the entire application's
proof of intrinsic safety.
Li
Ci
B
B.132 2028840000
Lightning and surge protection for control and instrumentation signals