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TTC 25Triac controller for DIN-rail mounting with setpoint adjustment for controlling 3-phase electric heating batteries, it is necessary to connect an external sensor to the controller. Application
- Electric heating batteries
Specifications
- Possible to connect 230 V or 400 V 3-phase electric heaters
- Maximal load : 9,5 kW (230V) or 16,5 kW (400V)
- Room temperature control : for slow temperature changes, works as P-controller (P = 2K)
- Supply air temperature control : for rapid temperature changes, works as PI-controller (P = 20K, reset time = 6 min)
- Settable cycle time : 6 to 60 s
- Min/max limit possible : 0 to 60°C
MountingAccessoires
- Duct temperature sensors, Type TG-K330
- Room temperature sensors, Type TG-R530
- Min/max temperature sensors, Type TG-K360
- Room temperature sensors for external setpoint, Type TG-R430
- Potentiometer to set an external setpoint, Type TBI-30
Technical data
- Supply voltage : 230V AC or 400V AC, 3-phase. Automatic adaptation
- Current : minimum 3 A - maximum 25 A
- IP 20
- Proportional band : 2K fixed (room control) / 20K fixed (supply air temperature control)
- Reset time : 6 minutes, fixed (supply air temperature control)
- Pulse period : 6 to 60 s
- LED indication on the controller when the output is active
- Two inputs for NTC sensors, one main sensor and one min/max limit
- Setpoint : selectable, either internal or external
Function
- The controller pulses the entire power output ON/OFF. The controller utilises time-proportional control, the ratio between On-time and Off-time is varied to fit the prevailling heating requirement (exemple ON = 30s and OFF = 30s gives 50 % output power).
Settings
- Setpoint range : 0 to 30°C, the choice of sensor determines the controller setpoint range
- Minimum limit : 0 to 30°C
- Maximum limit : 20 to 60°C
- Cycle time : 6 to 60 s
Dimensions
- (W x H x D) : 192 x 198 x 95 mm
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