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Effective June 2011

Instructional Leafl et 

IL04707001E

10250T contact block assembly

• 

Underwriters Laboratories Listed

• 

For use on a flat surface of Type 1, 2, 3, 3R, 
3S 

, 4, 4X, 12, and 13 enclosures

• 

IP65

 

For indicating lights without moveable operations.

General

1.  Drill mounting hole for vertical or horizontal 

mounting per one of the figures above.

2.  Ensure sealing gasket is in place on the 

operator. Align locating nib of operator 
with notch in panel and insert operator 
through mounting hole. Exception: See 
special instruction publication 20437 for 
placement of sealing gasket when using 
10250T/91000T protective boots.

3.  Place legend plate and mounting nut over 

operator. Tighten mounting nut. If applicable, 
assemble lenses, mushroom buttons, etc., to 
operator. Tighten securely (5 ft-lbs) (6.8 Nm).

4.  Torque terminals to 7 in-lbs (0.8 Nm).

For ease of assembly, Eaton recommends 
the following tools:

• 

10250T/91000TA95 for 10250T/91000T octagonal 
nuts, E29, and E30 lines

• 

E22CW for 10250T/91000T octagonal nuts, 
E22, E34, and E30 lines

Retaining 

Nut

Thrust Washer

(Optional)

Nameplate

Operator

Gasket

Panel

0.063–0.250

(1.6–6.3 mm)

Assemble Master Test or
Flasher Modules to Rear 

of Contact Blocks.

 Wires Shown are not Included

Ratings are Stamped 

on Light Unit 

and Contact Block

#755 Lamp

Saddle  Clamp Type Terminals

14 AWG–22 AWG 

(2.5 mm

2

—0.34 mm

2

)

Solid or Stranded. 

Do Not Mix One or  Two 

Conductors per Terminal

Earth/Ground

Conductor

91000/E34

Earth Terminal

ILL

P.B.

IND

LIGHT

PUSH

PULL

T-Line Operator

Lens Washer

0.60 
(15.2 mm)

1.20 
(30.5 mm)

0.136 (3.5 mm) Diameter Hole or
0.180 (4.6 mm) Rectangular Notch

Use 60/75ºC Copper Conductors Only

Vertical Mounting

Horizontal Mounting

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