Delta 36-325C Installation Guide download pdf (Page 17)

Installation and Connection

• Always note the rated voltage, select the appropriate over current protection devices, select

a disconnect device, and select the proper wire size before beginning the wiring process.

Wire the COMBIVERT F5 according to NEC Class 1 requirements.

• Always use UL listed or CSA approved copper wire with a minimum temperature rating of

75°C. The wire gauge listed in the tables in section 2.3 is based on the maximum fuse rating,

copper wire and a 75°C insulation rating (THHW or equivalent). If a lower level of over current

protection is used, it may be possible to reduce the size of the wire. Use 300V rated wire for

230V systems and 600V rated wire for 460V systems.

• A disconnect switch or contactor shall be provided as a means of turning off the supply

voltage. Repetitive cycling on and off of the supply voltage more than once every 5 minutes

can lead to damage of the unit.

• B Housing and Larger: Class J (Bussmann type LPJ or equivalent) fuses or a circuit breaker

with type D trip characteristic must be used to provide branch circuit protection of the

COMBIVERT F5. The voltage rating of the fuse or circuit breaker shall be at least 250V for

230V units and 600V for 460V units. See tables in section 2.3 for over current protection

amperage ratings.

• A Housing: Class CC (Bussmann type LP-CC or equivalently) fuses or a circuit breaker with

type D trip characteristic must be used to provide branch circuit protection of the COMBIVERT

F5. The voltage rating of the fuse or circuit breaker shall be at least 250V for 230V units. See

table in section 2.3 for over current protection amperage ratings.

• B Housing and Larger: Terminal tightening torque for the power terminals is 0.5 Nm / 4 lbin

• A: Housing: Power connection must be installed as indicated on the previous page. Always

be sure to double check power connections for tightness.

• For installation requiring line side ground fault protection (GFI) consult KEB.

• Line chokes can be used to reduce harmonics, conducted high frequency noise, and can

extend the lifetime of the unit. Consult KEB for more information.

N/L2

X1A

DC-connection 230 V-class

DC-connection 460 V-class

250...370 V DC

420...720 V DC

For branch circuit protection

use fuses rated for DC voltage.

(Bussmann type FWP)

A, B, and D Housings: A,B, and D Housings:

*X1A terminal layout varies depending on housing

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 55 56

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Delta 36-325C Installation Guide Page 17