Dictator RZ-24 Manuel technique - Page 11

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5b) Block Diagram

5c) Wiring Diagram RZ-

24 in an Ex-Proof

Hold-Open System

Without

Door Operator

Safe area

Central

unit

RZ-24

* Each ex-magnet has to be individually fused, with the fuse installed upstream of the magnet. You can find more in-

formation in the manual of the magnets. On site, the integration of a gas warning system must be checked by the ATEX

representative on the basis of explosion protection guidelines.

** Please refer to the Zener barrier manual for the detailed connection diagram.

Tel. +49(0)821-24673-0 • Fax +49(0)821-24673-90 • E-mail [email protected] • 20220325

Electrical Connection and Installation of an Ex-Proof

Hold-Open System with RZ-24 - cont.

Mains voltage

85 V AC....

265 V AC

(230 V AC)

ATTENTION: The bridge between the terminals 8 and 9,

which is put in factory, may not be removed!

The following wiring diagrams apply when the components of point 3a

are used. If for example other fire detectors (e.g. for installation outside

the hazardous area) are used, please contact us.

A hand release switch mounted outside the hazardous area, has to

be connected so that the Zener barrier is placed between it and the

hazardous area.

Fuse*

Zener barrier

Z779**

+24 -

Fire

Hold-open

alarm

system

loop

Hazardous area

zones 1 - 2

Up to 12 electromagnets

EM GD 50 EX or EM GD 70 EX

Max. 20 intrinsically safe

RM 3000IS EX smoke detectors or

Ex-proof

WM 3000IS EX heat detectors

hand

release

switch

700232

Screening, optional

(operational earth)

Technical Manual

RZ-24 Central

Fire alarm

potential-free

+24

8A/250V~/AC1

Jumper

Supply

placed

of other

in factory

consumers

Resistor 3.9 kΩ

Page 07.021.11

Ill. 4

placed in the

last detector

of the line

Ill. 5a