Carbolite HTF 18 - Manual (Page 17)

MF47-3.05 17
7.2 Two phase 380/220V – 415/240V
thermal cutouts:
case temperature sensor
transformer temperature sensor
TC temperature controller
OTC overtemperature controller
F1
Supply fuses (present if supply cable fitted)
F2 Auxiliary circuit fuses (2A)
F4 Thyristor protection fuse (Ferraz Protistor)
BL
Black
BU Blue
P Pink
G Grey
GR/Y Green & Yellow
Coil
L2
Elements
Contactor
BU BL
Thyr -
istor
BL
BU
OTC
P G
TC
Control
thermocouple
O/temp
thermocouple
Door
Switch
Element
Transformer
Case Cooling Fans
F2
F1
GR/Y
PE
L1
EMC
Filters
F4
Thermal
Cutouts
N
F1
Fault Light
BL
94KΩ
Heat
Light
Instrument Switch