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4.2   Electrical connection 

 

 

 Screw the explosion-proof cable glands and explosion-proof locking screw supplied with the fitting 

into the borings of the housing by using the lock nuts (Torques see Chapter 3, Technical Data). 

 

 

After mounting the light fitting housing insert the connection cable through the explosion-proof cable 
gland. An inlaid dust protective disc, if existing, must be removed before. 

 

 

Fasten the pressing screw of the explosion-proof cable gland (Torque see Chapter 3, Technical 
Data). 

 

  Outside the light fitting appropriate measures (e.g. pull relief clips) must be taken to 

protect the connection cable from twist and it must be ensured that no tensile forces 
react on the wiring and the cable entry! 

 

  The diameter of the connection cable must correspond to the sealing range of the 

explosion-proof cable gland (see Chapter 3, Technical Data)! 

 

  Cable entries, which are not used, must be closed with the enclosed closure plug (see 

Chapter 3, Technical Data)! An inlaid dust protective disc, if existing, must be removed 
before. 

 

  The conductors must not be damaged when skinning resp. stripping the cable! 

 

  When stripping the cable special attention needs to be paid to the correct length of the 

conductor end sections (see Chapter 3, Technical Data)! 

 

 

Connect the conductors of the connection cable to the right terminals as per marking. 

 

  It is important to ensure that the bare conductor is fully inserted into the terminal and that 

no cable insulation is clamped! 

 

 

 

 

Modes of operation 

 

Stand-by operation: 
The light fitting switches on automatically in case of a mains failure. 
Only the direct phase (L1) will be connected to connecting point L1 as mains supply monitor. 

 

Maintained operation: 
The light fitting switches on automatically and it may be used as a standard light fitting if mains voltage 
is on. 
The same direct phase (L1) will be connected to connecting point L1 as mains supply monitor and to 
connecting point L1' as switched phase. 

 
 
 
 
 
 
 
 
 

 

 

 

 

 
 
 
 
 
 
 

Summary of Contents for nD867.12L Series

Page 1: ...ends on the observance of all safety standards Exact knowledge about all applicable regulations and standards is mandatory for installation maintenance and repair of explosion proof equipment especial...

Page 2: ...thermically or electrically or if the light fitting will be subject to any kind of vibrations it is highly recommended to consult the Adolf Schuch GmbH before starting the installation Every structur...

Page 3: ...tected against mechanical and electrostatic attacks whenever the light fitting is open For this reason the LED must not be touched either Due to harmful gases and other corrosive substances e g ammoni...

Page 4: ...out automatically by the emergency light unit takes place at random within a period of 5 to 28 days after the light fitting has been setup All further automatic operational life tests are then carrie...

Page 5: ...val until the next regular operational life test is unaffected During the functionality and operational life tests the light fitting will switch on even if it was previously switched off 2 3 Ascertain...

Page 6: ...5 Instructions for special versions with remote cutoff switch Special versions of these lighting fixtures are equipped to be connected to a remote cutoff switch Through a remote cutoff switch isolated...

Page 7: ...us areas of zones 2 and 22 Explosion protection o II 3 G Ex ec IIC T4 Gc Version without battery box o II 3 G Ex db ec IIC T4 Gc Version with battery box o II 3 D Ex tc IIIC T80 C Dc Certification SH...

Page 8: ...uctor 0 75 1 0 mm 9 mm conductor 1 5 2 5 mm See information label on the front page when having special versions Locking Clamp lockings to be opened by hand as well as one safety closure at each side...

Page 9: ...fitting in an explosive dust atmosphere is depending on the properties of the surrounding dust Please ensure that there will be an adequate difference between the maximum surface temperature of the f...

Page 10: ...ntries which are not used must be closed with the enclosed closure plug see Chapter 3 Technical Data An inlaid dust protective disc if existing must be removed before The conductors must not be damage...

Page 11: ...emergency battery Version with battery box Open the battery box by loosening the locking screws and flip open the lid Remove the protective cap from the connector of the battery cable Attach the conn...

Page 12: ...ect to any tension whatsoever the bare conductor is fully inserted into the terminal and that no cable insulation is clamped the light fitting is closed correctly all gaskets are effective the light f...

Page 13: ...soft fibrous free cloth Pay attention to the following in case of application of this light fitting in dusty atmospheres Dust deposits have got thermal insulation characteristic features It is necess...

Page 14: ...to the presence of a new battery Open and close the lid of the battery box twice within a 60 second period Opening and closing the case must occur within 10 seconds of each other If this procedure is...

Page 15: ...though the connection to the battery still exists In this case the emergency battery is to be removed as described in Section 6 3 and to be charged separately from the light fitting With a 6V charging...

Page 16: ...16 L 01394 4 05 The test certificates are ready to be loaded down from our homepage www schuch de or we shall send it on request Misprints modifications and errors are excepted...

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