Model and Suffix Code
Model and Suffix Code
Accessories
Input signal
Fast-blow fuse
Optional function
Output mode
Max. load current
Setter (Volume, knob, Scale plate) 1 unit + Connector (Plug)
Setter (Volume, knob, Scale plate) 2 units + Connector (Plug)
Connector (Plug)
Terminal cover (For main circuit terminal)
THW-3
2
4
P Z
P Z
0 2 0
0 3 0
0 4 5
0 6 0
0 8 0
1 0 0
N
6
V
E
W
N
F
S
N
4
5
6
7
8
- 1
- 2
- 9
- A
*2 : Input signal is programmable within group.
*1 : When 400 to 440VAC is selected as power supply, a step-down transformer for the THW unit power supply is supplied as standard.
*3: When optional heater break alarm and load current limiter is specified, over-current alarm and thyristor break alarm are also supplied.
*4: When contact input or/and alarm output is required, specify the connector as an accessory.
Control method
Power supply
Type
Specifications
*2
*1
*3,*4
*4,*5,*6
*3
200 to 240V AC
400 to 440V AC
Phase control/Zero-cross control (programmable, default: phase control)
20A AC
30A AC
45A AC
60A AC
80A AC
100A AC
0 to 5V DC
0 to 10V DC
1 to 5V DC
0 to 20mA DC
4 to 20mA DC
Standard (Proportional phase angle • Proportional voltage • Proportional square voltage)
St Constant voltage control
St Constant voltage control (with heater break alarm and load current limiter)
St Constant current control (with heater break alarm and load current limiter)
St Constant power control (with heater break alarm and load current limiter)
No fast-blow fuse
With fast-blow fuse (No fuse break alarm output)
With fast-blow fuse (With fuse break alarm output)
No optional function
Three Phase Thyristor Unit
N
0 to 5V DC
0 to 20mA DC
Voltage pulse 0/12V DC Non-voltage contact
Group 1
Group 2
1 to 5V DC
4 to 20mA DC
0 to 10V DC
Voltage pulse 0/12V DC
Voltage pulse 0/24V DC
Non-voltage contact
*5: Setters are for external gradient setting, external manual setting, and external high/low setting for on/off control. Use two pieces of setter in the following cases;
• When external gradient setting and external manual setting are required.
• High/low setting for on/off control is used.
*6: It is possible to specify more than one accessories by adding suffix code at the end. (Example: -1-9-A)
