646GE系列是一种坚固耐用的危险场所全铝表压开关。与604系列的设计类似，646GE系列的额定电流为15安培，通过UL/CSA防爆，I级A、B、C和D组认证，II级E、F和G组认证。它采用双卡扣，具有高振动和抗冲击性 碟簧技术。应用包括：
•石油和天然气
•发电
•流体管理
•化学精炼和加工
•制造工艺
•公用设施、水处理和废物
•安全系统

Additional information
Environmental Approvals    
IP65, IP66, NEMA 4, NEMA 4X, NEMA 7, NEMA 9, NEMA 13, NACE, SIL, RoHS

Industry    
Industrial

Instrumentation    
Pressure Switch

Environment    
Hazardous

Certification Agency Approvals    
UL, CSA, CE, CRN, CCC, DUAL SEAL

Operating Temperature Range    
-40° to 186 °F

Process Connection Fitting Size    
Female 1/4" NPT

Process Connection Material    
Aluminum

Housing Enclosure    
Aluminum

Electrical Connection    
Male 1/2" NPT

Electrical Switch Type    
SPDT

Voltage Electrical Rating VAC    
0 to 250 VAC, 251 to 480 VAC

Amperes Electrical Rating    
0.2 to 15 A

Junction box app    
141-18, 141-19, 141-20, 141-28

Fixed or Adjustable Set Point    
Adjustable

Presetting    
Factory Set, Not Factory Set

Tagging    
Mylar, Stainless Steel

Accessories    
Manifold

Increasing Pressure Range    
1.2 to 16 PSIG, 8 to 75 PSIG, 20 to 150 PSIG, 50 to 375 PSIG, 330 to 1000 PSIG

Decreasing Pressure Range    
22 to 347 PSIG, 265 to 935 PSIG, 3 to 70 PSIG, 8 to 138 PSIG, 0.4 to 15.2 PSIG

Pressure Type    
Gage

Media    
Oil Based, Non-Oil Based

Increasing Pressure Ranges    
1.16 – 2.99 PSI, 3 – 180 PSI, 180.01 – 3400 PSI

Decreasing Pressure Ranges    
0 – 1.15 PSI, 1.16 – 173 PSI, 173.01 – 3180 PSI

Maximum System Pressure    
500, 3000

Maximum Proof Pressure    
750, 5000

Process Connection Seal    
O-Ring Sealed Diaphragm

Diaphragm    
Polyimide

O-ring    
Buna N