ARRE X

SOCKET

ELEMENT

LIGHTING ARRESTERS

FOR 3-WIRE SENSORS

MODEL

SK-312

TYPICAL APPLICATIONS

COMMOM SPECIFICATIONS

INSTALLATION

¡¤

Three-Wire Sensors or transmitter for instance

Potentiometer/Resistance Temperature

Construction: plug-in

Housing material: plastic (black)

Operating temperature: -10 to +60¡É

Operating humidity: 90%RH(non-condensing)

Mounting: WALL or DIN rail

Size: W28.5X H71X D78.5

Weight: 72g

The Vector Lightning Arrester Model SK-312 is designed specifically

for 3-wire sensors transmitter. Lightning surges damage that enters into

wiring between the potentiometter/RTD and transmitter will be absorbed

by the SK-312, thus will protect the potentiometer and transmitter.

D1

D2

SG

6

5

7

4

3

1

TO EQUIPMENT

-+

+-

COM

L2

L1

COM

-+

+-

SG

TO CABLE

DISCHARGE

FG

2

8

GROUND

FRAME

EARTH

E

ELEMENTS

(<100

)

§Ù

TOP VIEW

HOLE

2-4.5X6

(0.18X0.24)

(0.14X0.31)

SCREW

8-M3, 5X8

28.5(1.12)

1

2

3

4

5

6

7

8

TERMINAL

8(0.31)

ELEMENT

SOCKET

(0.24)

65(2.56)

6

DIMENSIONS [Scale: mm(inch)]

30(1.18)

FIXTURE SIZE

19(0.75)

HOLE

4.5(0.18)

SPECIFICATIONS

SOCKET

DESCRIPTIONS

SCHEMATIC CIRCUITRY

PARTICULAR

DATA

Model

Discharge Voltage

Maximum Leakage

Current

Max. surge Voltage

Discharge Current Capacity

Response Time

Internal Series Resistance

Max. Load Current

btwn L-SG

btwn

L or SG-E

SK-312

¡¾

16V

5§Ë (at 16VDC)

1mA (at 135VDC)

¡¾

34V(8x20§Á )

250V (8x20§Á )

3500A(8x20§Á )

<0.001nsec

<1¥ì sec

Approx. 0.1¥Ø (including return)

100mA

¡¤

DIN rail or wall mount

Compact and light-weight

No interruption of transmission when unplugging the arrester element

Lightning surges are absorbed toa large extent. The SK-312 has

high responsiveness

¡¤

¡¤

¡¤

¡¤

Plug-in structure

Model: PTF08A-B

btwn L-SG

btwn

L or SG-E

btwn L-SG

btwn

L or SG-E

btwn L-SG

TEL: (0331)245-6001(REF)

FAX: (0331)245-6182

ARREX-SERIES