| POWER |
|
| Nominal Current |
16 A to 250 A at 45°C ambient (see order code) |
| Nominal Voltage |
100 VAC to 500 VAC ( see order code) |
| Frequency |
47 to 63 Hz |
| Auxiliary supply |
Self-powered from supply network or external (115 Vac or 230 Vac +10%; 15%) depending on order code. Consumption: 10 VA |
| Dissipated power |
1.3 W (approx): per amp. Allow 2W per amp to include fuse dissipation |
| Cooling |
Rating ≤200 A: Natural convection. Rating 250A: Fan-cooled |
| |
|
| LOAD |
Single-phase industrial load: |
| Use category |
· AC-51 Resistive load with low
temperature coefficient |
| |
· AC-55b Short wave infrared elements for units ≤100A |
| |
· AC-56a Transformer primary and Resistive load with high temperature coefficient |
| |
|
| CONTROL |
|
| Control type |
Analogue |
| |
· Remote analogue setpoint: 0-5 Vdc or 0-10Vdc (100 kΩ input), 0-20 mA or 4-20 mA (250Ω input) |
| |
· Potentiometer for manual setpoint (5 Vdc supply available) |
| Control parameter |
· Standard: Load voltage squared (V2) |
| |
· Option: Apparent power (V x I, up to 100 amps), Load current squared (I2), Open loop |
| Linearity and stability |
Better than ±2% of full scale |
| Current limit (option) |
· Phase angle: Automatic control transfer from V2 to I2 or, from V x I to I2 with current recalibration set by potentiometer on front panel. |
| |
· Burst mode 16 cycle base: Current limited by threshold set using potentiometer on front panel. |
| |
A monitor signal is available in V x I for power and current calibration and maintenance |
| Transient current limit |
Option for transformer primary control in burst firing mode: |
| |
· Safety firing angle ramp on first firing |
| |
· First firing delay adjustable using potentiometer on front panel |
| |
|
| FIRING MODE |
|
| Firing at zero crossings |
· ‘Burst mode’ base time: 16 or 64 cycles |
| |
· ‘Single-cycle’: base time 1 cycle |
| |
· Advanced single-cycle: base firing time 1 cycle; non conduction by half-cycle |
| Firing angle variation |
· ‘Phase angle’ |
| |
|
| LOAD MONITORING (OPTIONS) |
| Serious alarms (GRF) |
Total load failure and thyristor short circuit detection.
Signaled by red ‘GRF” LED and alarm relay contact |
| Diagnostic alarm (DLF) |
Partial load failure detection. Signaled by orange ‘DLF’ LED and alarm relay contact |
| |
Sensitivity: Detects the failure of at least one heating element for up to six LTCL or four SWIR identical elements connected in parallel |
| |
The DLF option includes serious alarm monitoring (GRF) |
| Overtemperature alarm |
For fan cooled units operation stops if the temperature is exceeded.
Signaled by red GRF LED and alarm relay (with GRF option) |
| |
|
| OVERLOAD ALARMS (OPTION) |
| Over-current alarm |
Operation stopped if current threshold exceeded. |
| (ICO Chop Off option) |
Only available with zero crossing firing and DLF option (except for short wave infrared elements, transformers and codes VICL and V2CL). |
| |
Alarm threshold adjustable from 20 to 100% using potentiometer on front panel.
Signaled by red ‘ICO’ LED and alarm relay contact. |
| |
|
| ALARM RELAY |
Available with alarm options. The relay contact (0.25 A 230 Vac; 32 Vdc) is either open or closed on alarm depending on the product code. |
| |
|
| ENVIRONMENT |
|
| Temperature |
Use 0°C to 45°C at max. altitude of 2000m. Storage -10°C to 70°C |
| Pollution |
Degree 2 acceptable (defined by IEC 664) |
| Humidity |
RH 5% to 95% Non condensing, non streaming |
| |
|
| INSTALLATION |
|
| Mounting. |
Rating from 16 to 63A: Two symmetric DIN rail EN50022 or bulkhead mounting (4 x M4 screws) |
| |
Rating from 80 to 100A: Bulkhead mounting (4 x M4 screws) |
| |
Rating from 125 to 200A: Bulkhead mounting (4 x M6 screws) |
| |
Allow a minimum of 10mm between units. Units must be mounted with fins running vertically |
| Max. cable size. |
16 and 25 amp: 6mm2. 40 and 63 amp: 16mm2. 80 and 100 amp: 35mm2. 125 to 250 amp: 120mm2 |
| |
|
| PROTECTION |
|
| Thyristor protection at zero crossings |
| |
Varistor and RC snubber. High speed fuse: Rating ≤100A; external, >100A; internal. No fuse for short wave infrared (SWIR) elements if firing
or in phase angle firing mode without current limit. |
| Electrical protection |
IP20 without additional protection. Overvoltage category II |
| |
|
| WARRANTY |
2 years |
| |
|
| Rating (A) |
Height (mm) |
Width (mm) |
Depth (mm) |
| |
All Options |
Lite (*) |
Full (**) |
Lite |
Full |
| Base (1) |
Option (2) |
| 16 to 40 |
156 |
52,5 |
70 |
193 |
218 |
237 |
| 63 |
156 |
70 |
70 |
212 |
237 |
237 |
| 80 to 100 |
226 |
96 |
96 |
215 |
243 |
243 |
| 125 to 250 |
423 |
144 |
N/A |
372 |
372 |
N/A |
|
