Cut Sheet

ManualsBrandsEaton ManualsControl & Automation22mm Enclosure Spacer, M22

Volume 7—Logic Control, Operator Interface and Connectivity Solutions CA08100008E—June 2015 www.eaton.com V7-T1-183

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1.8

Pushbuttons and Indicating Lights

30.5 mm Heavy-Duty Watertight/Oiltight—10250T

Product Overview

Reliability Nibs

Eaton’s contact blocks

feature enclosed silver

contacts with pointed

“reliability nibs” for reliable

performance from logic level

up to 600V. To ensure reliable

switching, nibs bite through

oxide which can form on silver

contacts, eliminating the

need for expensive logic level

blocks for most applications.

Reliability Nibs

Reliability nibs improve

performance in dry circuit,

corrosive, fine dust and other

contaminated atmospheres.

Under normal environmental

conditions, the minimum

operational voltage is 5V and

the minimum operational

current is 1 mA, AC/DC. For

operation under a wider range

of environmental conditions,

logic level contact blocks with

inert palladium tipped

contacts are recommended.

Grounding Nibs

10250T line operators have

“grounding nibs”—four

metal points on the operator

casting designed to bite

through most paints and

other coatings on metal

panels to enhance the ground

connection when the operator

is securely tightened.

Grounding Nibs

Product Identification

30.5 mm Heavy-Duty Watertight/Oiltight—10250T Series

Dry Circuit

Medium Duty

Heavy-Duty

Grounding

Nibs

Mounting Nut Legend Plate Operator

Terminal Clamps

Shipped Ready to Wire

Stackable Contact

Blocks up to 12 Circuits

per Operator

Color Coded Plungers

Red = NC Green = NO

Diaphragm Seal with

Drainage Holes

Liquid Drainage

Eaton’s pushbutton operators

offer front of panel drainage

via holes in the operator

bushing. Hidden from view by

the mounting nut, these

holes prevent buildup of liquid

inside the operator, which

can prevent operation in

freezing environments.

The holes also provide a route

for escaping liquid in high

pressure washdowns,

effectively relieving pressure

from the internal diaphragm

seal, ensuring reliable sealing

in applications even beyond

NEMA 4.

Diaphragm Seal

Foam Neoprene

Panel Sealing Gasket

Drainage Hole

Drainage Hole

Flexible

Diaphragm

Stainless

Steel

Operating

Spring

Mounting Nut

Colorfast

Molded

Button