The Wattcor W212 line offers highly reliable solid state power control with “zero crossing” switching up to 600A / 660Vac for resistive loads.
The units are ideally suited for repetitive, wear and tear free switching of heater banks.
The most outstanding features of these switches are low heat dissipation and compact, space saving construction.
The W212 is controlled by an analogue signal (0-5V, 0-10V, 0 / 4-20mA) or potentiometer. The output switches in bursts (“zero crossing” switching) and the duty cycle is proportional to the input signal. The cycle time of the output can be adjusted by a trimmer incorporated in the unit. Three phase loads can be controlled by using one W212 as master and one or more W211 as slaves. The master unit synchronizes the slave units.
Features:
- Conduction inhabition input
- Overcurrent protection (DE option)
- Detection of partial load failure (RPC option)
- SCR diagnosis circuit and complete load failure (DTC option)
- Analogue signal input control in mA and potentiometer
- Synchronization slave digital output
- Adjustable modulation cycle duration
- Zero crossing switching of mains voltage
- High capacity anti-parallel SCR double thyristor
- LED status indicators
- MOV protections (varistor)
- DIN rail or panel mounting (depending on version)
| Inputs: | |
| Control signal in Vdc | |
| Control signal in Vac | |
| 0/4-20mA analogue control signal, 0-10V potentiometer | x |
| Control from Modbus serial line | |
| Power inhibit input | x |
| Outputs: | |
| Rated load current | |
| 25A | x |
| 40A | x |
| 45A | |
| 75A | x |
| 100A | x |
| 150A | x |
| 250A | x |
| 400A | x |
| 600A | x |
| Rated voltage | |
| 460Vac | |
| 660Vac | x (with opt. RPC max. 400Vac) |
| Mounting, Protections | |
| Mounting on base | |
| Mounting on DIN rail (including) | x (<=150A) |
| Panel mounting (with accessories) | x |
| IP 20 protection with removable front panel | x |
| Internal overvoltage protection | x |
| Diagnostics, Alarm | |
| "ON" LED signal | x |
| Diagnostics for partial and total load interrupt (HB) with internal CT, LED, alarm otput (RPC) | x (optional) |
| Diagnostics for total interrupt and short circuit SSR, LED, alarm ouput (DTC) | x (optional) |
| Alarm output for overtemperature | x (<=150A) |
