349

www .littelfuse .com

8

Gas Discharge Tubes

Heavy Duty Delta Range

3 ELECTRODE GDT

a=TIP

b=RING

e=GROUND

(centre electrode)

GRAPHICAL SYMBOL

ORDERING INFORMATION

a

b

e

1026 –

Voltage

SL

All dimensions in mm

Greentube™ SL1026 Series Gas Plasma Arresters

The SL1026 series is a heavy-duty transient suppresser using Gas

Plasma technology. In response to a transient voltage which

exceeds the fixed breakover voltage (selected according to part

number) the device changes from a very high impedance state to

a low impedance state, there by conducting harmful current

away from the protected system. The design is optimized for the

protection of electrical and electronic equipment employed in

Railway systems: carefully designed geometry ensures the device

does not become a short circuit in the event of a failure due to

conditions and events beyond the design criteria. An electrical

mounting clip (PN SL1053 ) is available to aid mounting and con-

nection. A mounting plate (PN SL 1056) is also available which

accepts 10 SL1053’s. Mounting of the clips to the plate provides a

common ground connection; the plate can then be connected to

a suitable ground via the screw terminal.

FEATURES

•

55 kA surge capability (single shot) tested with 8/20

µS pulse

as defined by IEC 61000-4-5

•

40 kA surge capability (repetitive)

•

Will protect against Trapezoidal waveforms as specified in

RIA 12.

•

Will protect against capacitor discharge voltage transient

waveforms as specified in RIA 12.

•

Will protect against double exponential voltage transient

waveforms as specified in IEC 571.

Applications:

•

Signaling equipment.

•

Communication equipment

•

Control gear.

•

Trackside cabinets.

•

Cell phone base stations

Mechanical Specifications:

Weight:

11g (0.388 oz.)

Materials:

Electrode Base: Nickel Iron Alloy

Electrode Plating: Bright Sn

Body: Ceramic

Device Marking:

Color coded body

SL1026A275: Black/Black

SL1026A400: Black/Yellow

SL1026A700: Black/Red

®

TYPE 1053 Holder

Pb

RoHS