Regin TTC2000 Installationsanleitung

INSTRUCTION
EN
TTC2000
IN20119 REV. A, 2025-10-27
Caution! Read and understand the instruction before us-
ing the product.
Caution! Ensure that the installation complies with local
safety regulations.
Warning! Before installation or maintenance, the power
supply must first be disconnected in order to prevent po-
tentially lethal electric shocks! Installation or maintenance
of this unit should only be carried out by qualified person-
nel. The manufacturer is not responsible for any eventual
damage or injury caused by inadequate skills during in-
stallation, or through removal of or deactivation of any
safety devices.
Function
Triac controller for proportional control of electric heating
TTC2000 is a proportional, 3-phase electric heating controller with
automatic voltage adjustment. The controller operates through stepless,
time-proportional control, where the relationship between the on-time
and off-time is based on the current heat demand. The controller is
primarily intended for use together with Regin's NTC series of sensors
for either supply temperature control or room temperature control.
During room temperature control, the supply air temperature can be
provided with a minimum or maximum limitation. TTC2000 can
control both symmetrical Y-connected 3-phase heaters and symmetrical
or asymmetrical Delta-connected heaters. The controller is only
intended for control of electric heating. The control principle makes it
unsuitable for control of motors or lighting. TTC2000 is intended for
wall mounting.
Technical Data
Supply voltage 3-phase, 210...255 / 380...415 V AC 3-phase, 50...60 Hz
with automatic voltage adaptation.
Max. current: 25 A/phase.
Max. load 3300 W/phase at 230 V line voltage (25 A)
5750 W/phase at 400 V line voltage (25 A)
Min. load 530 W/phase at 230 V line voltage (4 A)
920 W/phase at 400 V line voltage (4 A)
Protection class IP30
Ambient 0...35°C, non-condensing
temperature
Installation
– TTC2000 is intended for wall mounting.
– Mount the controller vertically with the text right side up.
Note! At full power, TTC2000 will emit approx. 45 W of ex-
cess heat which must be properly dissipated!
Wiring
– Connect the supply voltage to the terminals L1in, L2in and L3in.
Note! Please note that the lid of TTC2000 lacks hinges and
may fall off when the screw is removed.
TTC2000
L1 L1 L2 L2 L3 L3
in out in out in out
1 2 3 4 5 6 7 8 9
Figure 1 Wiring of supply voltage and load
Note! The controller must be grounded and the supply
voltage must be interlocked via a high temperature limit
switch!
Load
– Use terminals L1out, L2out and L3out.
Resistive 3-phase heater without neutral connection.
Main sensor and external setpoint (figures 2-6)
– Use terminals 1 and 4 (polarity insensitive). Low voltage.
Note! Terminals 2 and 3 are internally connected and are
used to simplify wiring when using an external setpoint
potentiometer. Switch 1 is used to select internal or exter-
nal setpoint.
TG-R5xx
1 2 3 4
TG-R6xx
1
2
Figure 2 Wiring of room temperature sensor TG-R5xx or TG-R6xx when
using internal setpoint
1 (9)