28

Door Interlock Switch

D2D

■ Safety Features

Double Spring Mechanism

Two return springs are provided for the pin plunger. Thus, if either of

the springs are broken, this feature will prevent the switch from

malfunctioning or short-circuiting.

(Applicable to D2D-1000 and D2D-3000 models. The D2D-2000

models with pull-on lock is not provided with this feature.)

Direct Contact Opening Mechanism

The insulating ring, identified by

, will positively break the

circuit if a contact weld occurs in the switch. (D2D-1000 models).

■ Structure

Standard Types

Pull-on Lock Types

Dimensions and Operating Characteristics

Note: 1. Unless otherwise specified, all units are in millimeters and a tolerance of

±0.4 mm applies to all dimensions

2. The operating characteristics are for operation in the A direction(

)

■ Standard Models

Example of D2D-1000.

Insulating ring

The section marked

pushes the movable

contact to apply force in the direction which

separates the movable contact forcibly from the

fixed contact.

External return

spring

Insulating ring

Movable spring

Normally open

terminal (NO)

Normally closed

terminal (NC)

Plunger

Case

Fixed contact (NC)

Movable contact

Fixed contact (NC)

Internal return spring

Plunger

Case

Fixed contact (NC)

Movable contact

Fixed contact (NC)

Normally open

terminal (NO)

Normally closed

terminal (NC)

Returning spring

stopper

Returning spring

Slider

Model

D2D-1000

D2D-1001

D2D-1002

OF max.

NC-OFF

NO-ON

300 gf

600 gf

- - -

600 gf

300 gf

- - -

TTF max.

750 gf

OT min.

2.3 mm

5.5 mm

FP max.

16.4 mm

17 mm

16.4 mm

OP

NC-OFF

NO-ON

15.9

± 0.4 mm

12.7

± 0.4 mm

- - -

12.7

± 0.4 mm

15.9

± 0.4 mm

- - -

TTP max.

10 mm

Screw Mounting

D2D-1000

D2D-1001

D2D-1002

4.3

±0.05 dia.

Four quick-connect

terminals (#250)

22

±0.1

16

8 dia.

FP

OP

TTP

1.8

5.8

33.6

10.4

25.2

30

13

23.6

1.65

+0.1

0

dia.

6.35

±0.1

12.4

A

Note: 1. NC-OFF: The force applied to the actuator to cause

it to move from the free position to the position at

which the NC contact opens.

2. NO-ON: The force applied to the actuator to cause

it to move from the free position to the position at

which the NO contact closes