11.0 Fuses and Power Settings
11.0
Fuses and Power Settings
11.1
Fuses
F1-F2: Refer to the circuit diagrams.
F1
Internal
Supply
Fuses
Fitted if supply cable fitted.
Fitted on board to some types
of EMC filter.
GEC Safeclip of the type shown
(glass type F up to 16 A)
38 mm x 10 mm type F fitted on
EMC filter circuit board(s)
F2
Auxiliary
Circuit Fuses
Fitted on board to some types
of EMC filter.
May be omitted up to 25 Amp/
phase supply rating.
2 Amps glass type F
On board: 20 mm x 5 mm
Other: 32 mm x 6 mm
Thyristor Fuse
Ferraz Protistor of the rating
shown
Customer
Fuses
Required if no supply cable
fitted.
Recommended if cable fitted.
See rating label for current;
See table below for fuse rating.
Model
Phases
Volts
Supply
Fuse
Rating
Thyristor
Fuse Rating
Current
Limit
(element
circuit)†
HTF 18/4
1-phase
208
25 A
30 A
140 A
HTF 18/4
1-phase
220-240
25 A
30 A
140 A
HTF 18/4
2-phase
+ N*
380 -415
16 A
30 A
140 A
* 2-phase designs use the line-to-line voltage; neutral is used for the control circuit
† see section 7.7 - the current limit setting at lower temperatures is 146 A.
11.2
Power Settings
The power limit settings (parameter OP.Hi) for this model are voltage dependant. The
figures represent the maximum percentage of time that controlled power is supplied to
the elements. Do not attempt to “improve performance” by setting a value higher than
the recommended values. To adjust the parameter refer to the "Changing the
Maximum Output Power" of the control section of the manual.
Volts (V)
208
220
230
240
380
400
415
Power (%)
100
100
100
100
100
100
100
64
Summary of Contents for CARBOLITE GERO HTF 18/4
Page 7: ...Caution Double Pole Neutral Fusing 7 1 0 Symbols and Warnings ...
Page 37: ...Power Limit View 37 4 0 3508 Dual Loop Cascade ...
Page 59: ...59 8 0 Repairs and Replacements ...
Page 63: ...GR Y Green Yellow 63 10 0 Wiring Diagrams ...
Page 67: ...Notes Service Record Engineer Name Date Record of Work ...
