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Pluggable SPDs – DIN Rail Mounted
BLITZDUCTOR XT Ex (i)
• Surge arrester for intrinsically safe measuring circuits and bus
systems
– Maximum discharge capacity for two-pole, three-pole or four-pole
interfaces
– Low voltage protection level, capable of protecting terminal
equipment
– Wide range of approvals: ATEX, IECEx, CSA Hazloc
• Arrester consists of a protection module and a base part
– Easy replacement of protection modules without force
– All protection components are integrated in the protection module
– Arrester with integrated RFID LifeCheck for preventive arrester Pluggable SPDs – DIN Rail Mounted
monitoring
• Functional and attractive design
– DIN rail mounted arrester with integrated earthing Pluggable and universal multipole surge arrester for use in intrinsically safe systems
– Minimum space requirements, two pairs over a width of 12 mm with integrated LifeCheck monitoring function.
– Vibration and shock-tested for safe operation
BLITZDUCTOR XT EX is a pluggable and universal four-pole DIN rail LifeCheck detects imminent electrical or thermal overload of the protec-
mounted surge arrester designed for the most stringent requirements on tion components. The LifeCheck status can be read in just seconds by the
the availability of intrinsically safe measuring and control circuits and bus hand-held DEHNrecord LC reader via non-contact RFID technology.
systems. Moreover, the date of the last test of the protection module can be dis-
For the purpose of intrinsic safety, the arrester is considered to be un- played and saved. When permanently installed, a condition monitoring
earthed and its self-inductance and self-capacitance are negligibly small. system allows condition-based maintenance of 10 BXT arresters.
The low-impedance arrester design ensures a high impulse current dis- For safe operation, the arrester is vibration and shock tested and resists
charge capacity (at least 10x) and a low voltage protection level. up to 30 times the acceleration of gravity. The function-optimised arrester
RFID LifeCheck allows quick and easy arrester testing. However, the hand- design allows quick and easy replacement of protection modules which
held DRC LC reader may only be used to read the protection modules in house all relevant protection elements.
non-explosive atmospheres.
Integrated in the protection modules, RFID LifeCheck permanently moni- The protection module and base part must be ordered separately!
tors the operating state of the arrester. Like an early warning system, RFID
Two-part design comprising a univer- The module locking mechanism All protection elements are integrat- Prewired surge arrester unit ITAK EXI
sal base part and an application-spe- ensures that the module is vibra- ed in the plug-in module and are BXT 24.
cific protection module. tion-proof and protected against po- monitored by means of LifeCheck.
larity reversal.
BLITZDUCTOR XT Ex (i) – Base Part
Base part without signal disconnection
• Universal base part for protection modules of the BLITZDUCTOR XT Ex (i) series
• No signal disconnection if the protection module is removed
• Connection of up to four lines
BXT BAS EX 920 301 BXT BAS EX
BLITZDUCTOR XT base part for use as an extremely space-saving and universal four-pole feed-through terminal for intrinsically safe circuits for
the insertion of the protection module, no signal disconnection if the protection module is removed. The snap-in mechanism at the supporting
foot of the base part allows the device to be safely earthed via the DIN rail. Since no components of the protective circuit are situated in the
base part, only the protection modules need to be serviced. 920 301 4013364109186 04 02 01 01 53 g
42,50 €
Type BXT BAS EX
Part No. 920 301
For mounting on 35 mm DINs rails acc. to EN 60715
Cross-sectional area, solid 0.08-4 mm 2
Cross-sectional area, flexible 0.08-2.5 mm 2
Tightening torque (terminals) 0.4 Nm
Earthing via 35 mm DIN rails acc. to EN 60715 *) only in connection with
an approved protection
Approvals UL, CSA, EACEx, ATEX, IECEx, Inmetro *) module
Valid as of August 1, 2020 You will find detailed product information on our website 173
