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N.O.

COM.

N.C.

Power 

Input

Power

supply

Control

Device

 

12Vdc

24Vdc

Magnetic bond 

sensor output

SPDT relay :3A@12VDC

Voltage Selection jumpers
 
Check  jumper  settings  before 
connecting  the  lock  to  24  VDC 
input power. Damage to the lock 
may result from incorrect jumper 
settings.

Magne t

Armat ur e

(Pow er Off)

Magne t

Armat ur e

(On Pow er )

Unique Anti-Residual design

When  there  is  no  power,  there  will  be  no  holding  force,  and  the  push-off  button 
inside  the Armature  Plate  will  pop  out  immediately  to  release  the  Electromagnetic 
Lock  and  the  Armature  Plate.  The  instant  release  circuit  function  will  prevent 
residual magnetism between Electromagnetic Lock and the Armature Plate.

PH-300 series
Mini Electromagnetic Lock

Operating Features 

Unique Anti-Residual design

Application

The  product  is  warranted  against  defects  in  material  and 
workmanship  while  used  in  normal  service  for  a  period  of    1 
year  from  the  date  of  sale  to  the  original  customer.  The  GEM 
policy  is  one  of  continual  development  and  improvement; 
therefore  GEM  reserves  the  right  to  change  specifications 
without notice.   

Warranty

PH-300TD

: Re-locking time delay

Relocking Time Delay Switch ensures 
the 

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automatically  turns  to  lock  mode 

after the door is closed properly and it 
can be adjusted from 0 to 90 seconds.

N.O.

COM.

N.C.

Power 

Input

S

P

D

T

 r

e

la

y

 

3

A

@

1

2

V

D

C

  Timer Adjust

Shorten

Trigger 

GIANNI INDUSTRIES, INC.

Copyright © Gianni Industries, Inc. All rights reserved.  
DM-CA-PH-300-600   Ver. C  Published on 2008.04.30

No. 13, Zhongxing Rd., Tucheng Dist., New Taipei 
City 236,Taiwan (R.O.C.)

Tel: 886-2 2267 7986 / Fax: 886-2 2267 9876

E-Mail: info@gianni.com.tw       
Website: gianni.tw

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