Hach LANGE WDMP sc Manual Del Usuario página 9

Table 1 shows the requirements for the circuit breaker.
the AC power disconnect. Figure 3
box.
Table 1 Circuit breaker requirements
Mains circuit
115–120 V
230 V
Supply power to the controller with conduit or a power cable. Wire
insulation must be rated at least 300 V, 80 ºC. Connect the instrument in
accordance with local, state or national electrical codes.
Make sure that the ground wire is 18–14 AWG. Connect the
uninterrupted ground wire to the ground stud with an earth ground
symbol label (Figure 3).
For installation with conduit:
• Connect the conduit through a conduit hub that holds the conduit
securely and seals the enclosure when tightened.
• Make sure the local disconnect device is within easy reach of the user
and easy to operate (Figure 2).
For installation with a power cable, make sure that the factory-supplied
or user-supplied cable is:
• Less than 3 m (10 ft) in length
• Not less than 18 AWG with applicable insulation colors for local code
requirements
• A power cable with a three-prong plug (with ground connection) that is
applicable to the supply connection
• Connected through a cable gland (strain relief) that holds the power
cable securely and seals the enclosure when tightened
• Does not have a locking type device on the plug
Figure 2 shows
shows power wiring in the junction
Amps
≤ 20 A
≤ 10 A
Table 2 gives the mains wiring color codes.
Table 2 AC power wiring information
Terminal Description
1 Hot (L1)
2 Neutral (N)
— Protective Earth (PE)
Ground lug
Color—North
Color—EU
America
Black Brown
White Blue
Green Green with yellow
stripe
English 9