AT7821 datasheet(2/3 Pages) ETC2

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Compact timer

protective cover

• 8P cap

• Rear terminal socket: M3.5

The terminal socket can be used for two

installation methods for the back and the

front!

Tolerance: ±0.1 ±.004

AD8-RC

N-TC

AT78041

When a flush type mounting frame is used for

the exposed type, 8P cap should be installed.

The dimensions B and C are

shown in the table below.

(Unit: mm, inch)

When installing 8P cap:

Features

1. The cover prevents the timer from

operating improperly after setting the

time. It also works as a compact dust

cover.

2. The cover is applicable for all types

of the fingertip flush type mounting

frames for the compact timer.

Press the points on the protective cover

(indicated by arrows) to bend the ribs,

and hook the ribs inside the mounting

frame window. The protective cover can

be installed if the timer is inserted into

the mounting frame.

Installation

Dimensions (Unit: mm, inch)

Tolerance: ±0.3 ±.012

Installation

1. Insert the mounting frame surface

into the panel from its front surface.

Removal

Remove the timer in the reverse order of installation.

3. Hang the hooks on the timer base

to secure the timer to the flush type

mounting frame.

2. After installing the panel, insert the

timer to be used from the back of the

panel.

Note: The panel which is

installed onto the flush type

mounting frame for the timer

cannot be inserted.

(However, the installation

order is not specified when

the flush type mounting

frame (type S) is used.)

When an applicable timer comes in con-

tact with the collar of the mounting

frame, stop the timer by pressing the

upper and lower hooks in the direction

indicated by arrow. Use the terminal

socket at the back (AT78041) or the 8P

cap (AD8-RC) for the connection wiring.

Rib

Protective

cover

Rib

Frame

11.6

45.6

1.575

.457

.039

1.795

34.6

1.362

31.5

1.240

φ 30

φ1.181

Frame

Timer

Mounting plate

34.6

1.362

.394

8p cap

1.614

1.496

.827

Mounting frame

to be used

Type H

Type K

Type MHP

Type MHP-M

Type S

52.8

13.1

51.3

14.6

Dimension

8P cap

Hook

Arm

Terminal socket

Arm

Hook

at the back

COMPACT SIZE TIMER COMMON OPTIONS

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