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----OPEN GROUP HOLDING LTD. is located in Liushi, Wenzhou, Zhejiang Province, China. It faces the 104 National Highway that run-through Zhemin Economic Zone, close to Qili Harbor and Wenzhou Airport on the south, close to the scenic spot Yandang Mountain on the north.

Quality assurance and customer satisfaction lead Open Group's top belief. OPEN GROUP HOLDING LTD. is one of the most professional manufacturers producing low-voltage and high-voltage electrical products, power equipment, cables & wires, etc. Through last 10 years' development,OPEN GROUP HOLDING LTD. has grown up as one of the biggest group companies in China, and the products range includes lightings, and lamp. We have over fifty member factories for the products above, and our products include 1,500 series and more than 15,000 industrial components.

We have precious experiences in exporting our products to the Southeast Asian, Australian, European and the American markets. Our products are well-known greatly due to high quality and reasonable price. After more than 10 years' promotion and service in the world, our products are enjoying a great share in the international market.

To present our customer more considerate service, OPEN GROUP HOLDING LTD. has modernized our production equipment, enhanced production technology and management mode. To form designing, producing, quality checking, selling as an organic whole, from quality control of the input of the raw materials and feedback of the after-sale service, etc., we have introduced TQM and other advanced producing methods to ensure the interest of our customers.

The 21st century is the era of the knowledge economy, full of the fierce competitions of technology and managing mode, but meanwhile, we can tell that there are also so many opportunities to get mutual benefits. Welcome domestic and international friends to cooperate cordially with OPEN GROUP HOLDING LTD. We believe with our best efforts, we can create the prosperity and development for both of our business.

 Smallclass Circuit breaker (83)
     Surge protective device
     Motor protection circuit break
     16 series
     Autoreclosure Breaker
 Smallclass Contactor (38)
 Smallclass Fuse (30)
 Smallclass Signal lamp (16)
 Smallclass Push button (105)
     LAY5-E Series
     LAY5-B Series
     XB5 Series
 Smallclass Panel meter (71)
     A.C. Ammeters
     A.C. Voltmeters
     D.C. Ammeters
     D.C. Voltmeters
     Frequency meters
     Power meters
     Maximum demand ammeters
     Sychronoscope meters
     Elapsed time meters
     Double meters
     Other special meters
 Smallclass Switch (19)
 Smallclass Capacitor (71)
 Smallclass Transformers(31)
 Smallclass Relay (279)
     Relay socket
     General purpose relay
     Time relay
     Time Switches
     Floatless relay
     Solid State Relay
     power relay
     Programmable time controller
     Counters and Meters
 Smallclass Controllers(12)
 Smallclass Energy meter (264)
     DIN-Rail Mounted
     Front Board Mounted
     Inserting Mounted
     Socket Mounted
     General Meter
     Metal box
     Plastic box
 Smallclass UPS (19)
 Smallclass Controller(11)
 Smallclass Digital meter (72)
  | Low voltage electric >>  Photoelectric switch >> G139
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G139 Photoelectric switch:


Structural category Photoelectric switch
outward appearance code G139
Diffuse type detection distance 1m
DC 10~30V NPN NO G139-3A1NA
NC G139-3A1NB
NO+NC G139-3A1NC
NC G139-3A1PB
NO+NC G139-3A1PC
AC 90~250V Controllable silicon NO G139-2A1LA
relay output G139-2A1JC
Retroreflictive detection distance 5m
DC 10~30V NPN NO G139-3B5NA
NC G139-3B5NB
NO+NC G139-3B5NC
NC G139-3B5PB
NO+NC G139-3B5PC
AC 90~250V Controllable silicon NO G139-2B5LA
relay output G139-2B5JC
Trough beam detection distance 10m
DC 10~30V NPN NO G139-3C101NA
NC G139-3C101NB
NO+NC G139-3C101NC
PNP NO G139-3C101PA
NC G139-3C101PB
NO+NC G139-3C101PC
AC 90~250V Controllable silicon NO G139-2C101LA
relay output G139-2C101JC
Control output DC:200mA  AC:300mA  relay:2A
Consumptio current DC15mA  AC10mA
Response time DC2ms  AC20ms
Directional angel 30 -100
Detected object transparent or opaque body
Working environment temp. -25~+55
Intensity of illumination Working environment Sunlight under 10000LX  incadescent lamp under 3000LX
Shell material Metal  G39
Protection grade IP54

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