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R. Stahl

8579/8581 Series Plugs & Receptacles

Provide unique solutions for electrical connections in hazardous and corrosive environments

Have questions? We're here to help!
Have questions? We're here to help!

The 8579 and 8581 Series of plugs and switched receptacles provide unique solutions for electrical connections in hazardous and corrosive environments in the following industries:

• Chemical Pharmaceutical
• Petrochemical Offshore Energy
• Refining Coal Mining

They are made almost entirely from non-metallic material, and are available in 63A and 125A models.

This system makes the mating of plugs and receptacles of different voltages and current ratings physically impossible as required by the National Electrical Code. The plugs and switched receptacles are color coded according to voltage rating and ground pin position.

Each receptacle contains a horsepower rated disconnect switch. The circuit cannot be energized until the plug is inserted and the switch is turned to the ON position. The plug cannot be removed until the switch is turned to the OFF position, thus de-energizing the circuit.The switch handle is padlockable in the ON or OFF position.

The disconnect switch includes an auxiliary contact (late make, early break) as standard. This can be used for connection to a pilot light which can be used to signal power ON or power OFF, at a remote location.

    

 

• Reliable load disconnect switch with easily visible, lockable handle and display of the switching position
• An integrated auxiliary contact for control and signalling purposes, can be optionally enhanced using pluggable Ex e or Ex i auxiliary contacts that are easily retrofittable
• Large temperature range of use
• High mechanical impact and shock resistance
• Perfect protection against penetration of liquids and dusts
• 3D data for download on the website
FMFile No. OR6A2. AX
NECClass I, Zones 1 & 2 AEx de IIC T*
Class I, Division 2, Groups A,B,C,D
Class II, Divisions 1 & 2, Groups E,F,G
Class III
CECClass I, Zones 1, Ex d e IIC T*
Class I, Division 2, per CEC J18-150
Class II, Divisions 1, Groups G
*Ambient Temperature Range and T Rating8579/4:
+40°C (+104°F) Max., T6
-30°C (-22°F) Min.

8581/4:
+40°C (+104°F) Max., T5
-30°C (-22°F) Min.
IECEx8579/4:
PTB 06.0020
Ex d e IIC T**
Ex tD A21 IPP66 T60°C or T105°c

II 2G Ex de IIC T105°C
II 2D Ex tD A21 T60°C or T105
PTB 01 ATEX 1150

8581/4:
PTB 06.0034
Ex d e IIC T**
Ex tD A21 IP66 T80°C or T90°C

II 2G Ex de 11C T**
II 2D Ex tD A21 IP66 T65°C or T95°C
PTB 01 ATEX 1161
**Ambient Temperature Range and T Rating:8579/4:
+55°C (131°F) Max., T4
+50°C (122°F) Max., T5
+40°C (104°F) Max., T6
-45°C (-49°F) Min.

8581/4:
+55°C (131°F) Max., T5
+40°C (122°F) Max. T6
-45°C (-49°F) Min.
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    85798581series Rstahl 19924

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