General Information:

Sectionals are terminal blocks which are made up of individually molded units with electrically conductive members.

Marathon offers barrier sectionals from 3/8ths to 1/2 pitch, Euro style sectionals from 5mm to 12mm pitch with

fusing, disconnection and grounding options. These sectionals will mount on either a standard 35mm DIN rail,

channel rail, or panel (anchor directly).

Ratings and Standards:

The voltage ratings of terminal blocks are based upon the minimum spacing between electrically conductive parts

line-to-line through air and over surface and line-to-ground through air and over surface.

Class A

Service equipment including deadfront switchboards, panel boards and service entrance devices.

Class B

Commercial appliances including business equipment and electronic data processing equipment.

Class C

General industrial and machine tool controls which can be further defined as equipment falling under UL 508.

Spacing Requirements (in inches):

Applications:

Designed for electrical termination of wire where flexibility of circuit design is necessary. Accepts single or multiple

wire sizes for tubular screw and tubular clamp styles.

Voltage

Thru Air

Over Surface

Class A

51-150

.500

.750

151-300

.750

1.250

301-600

1.000

2.000

Class B

51-150

.063

.063

151-300

.094

.094

301-600

.375

.500

Class C

51-150

.125

.250

151-300

.250

.375

301-600

.375

.500

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Sectional Terminal Blocks