Carbolite CF 15 - CF 60 User Manual download pdf (Page 16)

16 MF28 3.08

3-phase without neutral (delta – e.g. 208-240V)

7.3 3-phase without neutral (star – e.g. 380V or above)

7.4 Higher Voltages (e.g. 440V, 480V 3-phase)

The diagram above (7.3) normally applies, with neutral (if present) not being used. For single

phase models of 254V or above, diagram 7.1 applies except that a control circuit transformer is

included as in diagram 7.3.

(s)

Instrument Switch

coil

temperature

controller

thermocouple

overtemp.

controller

thermocouple

safety

switch

SSR

heat

SSR

heat

(s)

heat

if fitted

contactor

Filter (if fitted)

element o/temp

controller

thermocouple

(s)

element o/temp

controller

thermocouple

(s)

transformer

coil

temperature

controller

thermocouple

overtemp.

controller

thermocouple

safety

switch

SSR

heat

SSR

heat

Filter (if fitted)

if fitted

contactor

47k

Note: in this configuration the fuses F2 on

the supply side of the transformer may be

GEC Safeclip, not 32 x 6mm glass as stated

in section 8.1.

Instrument Switch

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