Sor Explosion Proof Pressure Switch UL/CSA/ATEX Manual de usuario descargar pdf (Pagina 3)

Form 316 (01.13) ©SOR Inc.

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Electrical Connection

Ensure that wiring conforms to all applicable local and national electrical codes and install

unit(s) according to relevant national and local safety codes.

NOTE: For ATEX Certi ed Models: Electrical conduit connection threads may be of non-ISO thread

form. Check the product nametag for relevant thread form information before attempting to

connect to the electrical conduit connection. In the event a  tting is used, check the adapter body

for thread size information.

Standard electrical connection is a terminal block.

SPDT

Pressure

Blue (C)

DPDT (2-SPDT)

Blue (C)

Black (NO)

Red (NC)

Yellow (C2)

Brown (NO2)

Orange (NC2)

Green (GND)

NO2NO1

Pressure

Blue (C)

Black (NO)

Red (NC)

Green (GND)

Overtravel has been preset at the factory, i.e. the switching element

assembly has been precisely positioned in the housing for optimum

performance. It normally should not be changed in the  eld. Should

adjustment be necessary, factory approved procedures must be closely

followed. Any inadvertent movement or replacement in the  eld will degrade

performance, void the warranty and could render the device inoperative,

unless factory approved procedures are followed.

B-series is 6-place compression type; J4 is 6-place screw type. The terminal block is marked:

Common (C), Normally Open (NO), Normally Closed (NC). If DPDT is specified, additional

markings are: Common 2 (C-2), Normally Open 2 (NO-2), and Normally Closed 2 (NC-2).

NOTE: Internal primary equipment ground (earth) screw must be used for the equipment ground

connection and the external supplemental ground screw is provided for safety and compliance

with speci c code requirements.

The electrical compartment cover must remain sealed and the Allen locking

screw tightened at all times to prevent removal of the cover while the

pressure switch is in service.

Electrical power must be disconnected from explosion proof models before

the cover is removed. Failure to do so could result in severe personal injury

or substantial property damage.

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