DEHNconnect RK Ex (i)

Extremely space-saving (only 6 mm in width)
Spring-loaded connection system
ATEX and FISCO approval

Details

lorem ipsum — Installation in an Ex (i) circuit

DCO RK MD EX

Surge arrester with energy-coordinated low-capacitance protective circuit for protecting intrinsically safe measuring circuits and bus systems, meets FISCO requirements.
Insulation strength > 500 V to earth.

1 Product

Part No. 919960 DCO RK MD EX 24

GTIN 4013364296367, Customs tariff No. (EU): 85363010, Gross weight: 47.80 g, PU: 1.00 pc(s)

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Additional information

Surge protective terminal block
DEHNconnect RK, SPD class TYPE 2/P1,
tested acc. to EN 61643-21 and energy
coordinated acc. to IEC 61643-22 for the
protection of balanced interfaces with
electrical isolation in Ex(i) version, meet
the requirements of FISCO, terminal 2 pole
and width 6 mm with spring pressure system
Max. input current acc. to EN 60079-11: 0.5 A
C2 Total nominal discharge current (8/20 µs): 10 kA

Brand: DEHN
Type: DCO RK MD EX 24
Part No.: 919960
or equivalent.

Certificates

Technical data

SPD class	T
Max. input voltage acc. to EN 60079-11 (U_i )	30 V
Max. input current acc. to EN 60079-11 (I_i )	0.5 A
C2 Total nominal discharge current (8/20 µs) (I_n )	10 kA
*) For more detailed information, please visit www.dehn.de/en/sil/

SPD class	T
Nominal voltage (U_N )	24 V
Max. continuous operating voltage (d.c.) (U_c )	33 V
Max. continuous operating voltage (a.c.) (U_c )	23 V
Max. input voltage acc. to EN 60079-11 (U_i )	30 V
Max. input current acc. to EN 60079-11 (I_i )	0.5 A
Nominal current (I_L )	0.5 A
D1 Lightning impulse current (10/350 µs) per line (I_imp )	1 kA
C2 Total nominal discharge current (8/20 µs) (I_n )	10 kA
C2 Nominal discharge current (8/20 µs) per line (I_n )	5 kA
Voltage protection level line-line for I_nC2 (U_p )	≤ 50 V
Voltage protection level line-PG for I_nC2 (U_p )	≤ 1500 V
Voltage protection level line-line at 1 kV/µs C3 (U_p )	≤ 45 V
Voltage protection level line-PG at 1 kV/µs C3 (U_p )	≤ 1400 V
Series resistance per line	1.8 ohms
Cut-off frequency line-line (f_G )	6 MHz
Capacitance line-line (C)	≤ 1 nF
Capacitance line-PG (C)	≤ 6 pF
Operating temperature range (T_U )	-40 °C ... +80 °C
Degree of protection	IP 00, with cover IP 20
For mounting on	35 mm DIN rails acc. to EN 60715
Connection (input / output)	spring / spring
Cross-sectional area, solid	0.08-2.5 mm²
Cross-sectional area, flexible	0.08-2.5 mm²
Earthing via	DIN rail / terminal
Enclosure material	polyamide PA 6.6
Colour	blue
Test standards	IEC 61643-21 / EN 61643-21
Approvals	ATEX, IECEx, CSA & USA Hazloc, SIL
SIL classification	SIL2 / SIL3 ^*)
ATEX approvals	KEMA 09ATEX0124 X: II 2 (1) G Ex ia IIC T4 ... T6
CSA & USA Hazloc approvals (1)	70111032: Class I Div.1; Class I Zone 1
CSA & USA Hazloc approvals (2)	70111032: Ex ia [ia Ga] IIC T4 ... T6 Gb
*) For more detailed information, please visit www.dehn.de/en/sil/

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