A22NZ-RMA-TYA datasheet(24/30 Pages) OMRON

24 / 30 page

A22NN/A22NL

Application

Mounting to the Panel

Panel Hole Dimensions

• Panel hole dimensions are given below.

• The recommended panel thicknesses are given below.

• If outer surface treatment such as coating is performed for the

panel, the panel dimensions after outer surface treatment must

meet the specified panel dimensions.

• The following figure gives pitch dimension A and pitch dimension

B between the centers of the mounting holes.

Dimension A

Note:

The minimum mounting pitch is based on three Contact Blocks

in stage 1 with one wire attached to each terminal.

If you attach two wires or link Units, determine the mounting

pitch based on the dimensions diagrams and ease of operation

and wiring.

Dimension A When Using Accessory

• Dimension A is 50 mm minimum when a Standard Legend Plate

Frame is attached.

• Dimension A is 51 mm minimum when a Large Legend Plate

Frame is attached.

• Dimension A is 75 mm minimum when a Protective Cover is

attached.

Dimension B

Mounting the Operation Unit

• Panel Hole of 22.3-mm Diameter

Insert the Operation Unit from the front of the panel, insert the Lock

Ring and Mounting Nut from the back of the panel, and tighten the

Mounting Nut. Before tightening, check that the rubber washer is

present between the Operation Unit and the panel.

• Panel Hole of 25.5-mm Diameter

Do not use the Lock Ring, and tighten the Mounting Nut while

confirming that the projecting part (see following figure) on the

Mounting Nut is aligned with mounting hole. Before tightening,

check that the rubber washer is present between the Operation

Unit and the panel.

• Align the Lock Ring with the slot on the case and insert it so that

the edge is flush with the panel.

Mounting the Contact Block to the Operation Unit

• Insert the Operation Unit into the Mounting Collar, aligning the TOP

mark inscribed on the Operation Unit with the lever on the

Mounting Collar, and then turn the lever in the direction indicated

by the arrow in the following figure all of the way until it clicks into

place.

Panel hole dimension

Panel thickness

22.3 dia.

0.8 to 5 mm

25.5 dia.

0.8 to 6 mm

Wire type

Number of

linked Con-

tact Blocks

Number of

wires per ter-

minal

Minimum al-

lowable pitch

Dimension A

(mm) or larger

Leads (twisted wires

or solid wire)

Bare crimp terminals

Crimp terminals with

insulating sheathes

Dimension A

22.3

dia.

+0.4

3.2

Using the Lock Ring

Standard Switch

22.3

dia.

+0.4

22.3

dia.

+0.4

+0.2

24.1

dia.

+0.4

Dimension B

R: 0.8 max.

Panel Hole Dimensions for 22.3 Diameter

Panel Hole Dimensions for 25.5 Diameter

25.5

dia.

+0.5

Operation Unit shape

Dimension B

Mushroom

40 mm min.

Other than the above

30 mm min.

Lock Ring

Rubber washer

Mounting Nut

22.3 dia.

Mounting Nut

Projecting part

25.5 dia.

Rubber washer

TOP mark

(2)

(1)

A22NZ-RMA-TYA Datasheet(PDF) 24 Page - Omron Electronics LLC

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