D-136

Safety Sensors / Components

Guard Lock Safety-door Switch

D4BL

Protective Doors Are

Locked Until Machines

Completely Stop Operating

• A mechanical lock is applied automatically when the

Operation Key is inserted. A high level of safety is

achieved using a mechanism where the lock is only

released when voltage is applied to the solenoid.

• Conforms to EN (TÜV) standards corresponding to

the CE marking.

• Approved by UL, CSA, BIA, and SUVA standards.

• The switch contact is opened by a direct opening

mechanism (NC contacts only) when the protective

cover is opened. Direct opening mechanism that is

EN-approved is indicated by

on the switch.

• Auxiliary release key ensures easy maintenance and

unlocks the door in the case of a power failure.

• Tough aluminum die-cast body incorporating a

switch box with degree of protection satisfying IP67,

UL, and CSA TYPE6P, 13.

• Equipped with a horizontal and vertical conduit open-

ing.

• Models incorporating easy-to-see indicators for mon-

itoring and those using an adjustable Operation Key

for a double door are available.

• The mounting direction of the head can be changed

to allow the Operation Key to be inserted from four di-

rections.

• Metric conduit types available

Model Number Structure

Model Number Legend

12

34

5

1

D4BL -

-

1. Conduit Size (2-conduit)

3. Head Mounting Direction

5. Indicator

D4BL - K

Switch

Operation Key (Order Separately)

1. Operation Key Type

1: PG13.5

2: G1/2

3: 1/2-14NPT

4: M20

C: 1NC/1NO (slow-action) + 1NC (slow-action)

D: 2NC (slow-action) + 1NC (slow-action)

R: Four mounting directions possible (right-side mounting at

shipping)

4. Door Lock and Release

(Auxiliary Release Key is Incorporated by All Models)

A: Mechanical lock/24-VDC solenoid release

B: Mechanical lock/110-VAC solenoid release

G: 24-VDC Solenoid lock/Mechanical release

Blank: Without indicator

A:

10 to 115 VAC or VDC driving (with orange

and green LED indicator unit)

1: Horizontal mounting

2: Vertical mounting

3: Adjustable mounting (Horizontal)

2. Built-in Switch (with Safety Switch and Lock Monitor

Switch Contacts)