IKA RC 2 GREEN control Circulation Chiller, R290, 800 W Cooling Capacity, WiCo Wireless Controller, 0025006638
€4,555.50
% Manufacturer's RRP: €6,074.00 25% below manufacturer's RRP
- Circulating cooler with a cooling capacity of up to 800 W at 20 °C
- Natural refrigerant R290, 69 g charge
- Successor to the RC 2 control, which is being phased out on 31.07.2026
- WiCo wireless controller with 10 programmable temperature programmes
- PID control with TFT display, display resolution 0.01 K
- External PT100 connection via LEMO socket
- Operating temperature range down to minus 30 °C
Product information "IKA RC 2 GREEN control Circulation Chiller, R290, 800 W Cooling Capacity, WiCo Wireless Controller, 0025006638"
If you have been searching for the IKA RC 2 control recirculating chiller and have been redirected here: the previous model was discontinued on 31 July 2026; the IKA RC 2 GREEN control recirculating chiller is the successor model designated by IKA. It delivers up to 800 watts of cooling capacity at 20 degrees Celsius, operates using the natural refrigerant R290 and supplements the cooling function with a PID controller featuring a TFT display, as well as a WiCo wireless controller for programmable temperature profiles. As an external cooling source, it cools rotary evaporators, laboratory reactors and other equipment fitted with heat exchangers.
Successor to the IKA RC 2 control: what’s changing
IKA has discontinued production of the RC 2 control as of 31 July 2026 as part of the portfolio transition to natural refrigerants. IKA guarantees the availability of spare parts and repair services for all discontinued units in this series for at least 10 years. The RC 2 GREEN control retains the design and connection dimensions virtually unchanged and is the direct successor. Compared with its predecessor, the refrigerant, cooling capacity and pump capacity have changed; in terms of temperature stability, the specified value for the successor is numerically higher than that of its predecessor. The following table compares both series with their respective documented values:
| Feature | RC 2 control (predecessor) | RC 2 GREEN control (this product) |
| Refrigerant | R134a | R290 |
| Cooling capacity at 20 °C | 400 W | 800 W |
| Max. pump pressure | 0.3 bar | 0.5 bar |
| Max. flow rate | 18 l/min | 21 l/min |
| Temperature stability (DIN 12876) | ±0.05 K | ±0.15 K |
| Weight | 28.5 kg | 26.5 kg |
Unlike the RC 2 basic, the RC 2 control is no longer in stock; it is no longer possible to order this model with R134a. If you are looking for a cooling-only unit without a WiCo wireless controller, using the natural refrigerant R290, the IKA RC 2 GREEN basic is the right choice.
Cooling capacity and control
At 20 degrees Celsius, the RC 2 GREEN control delivers up to 800 watts of cooling capacity; at 10 degrees Celsius, this is 700 watts; at 0 degrees Celsius, 500 watts; at minus 10 degrees Celsius, 400 watts; at minus 20 degrees Celsius 200 watts and at minus 30 degrees Celsius 90 watts. The operating temperature range thus extends from minus 30 degrees Celsius to room temperature; with an external heater, the bath can also be used up to 70 degrees Celsius. Unlike the RC 2 GREEN basic, a PID controller with a TFT display manages the temperature control here; internally, a 3-point calibratable PT100 sensor takes measurements, the display resolution is 0.01 Kelvin, and the setting accuracy for the setpoint temperature is 0.1 Kelvin. According to DIN 12876, a temperature stability of ±0.15 Kelvin is specified; the comparative value for the predecessor model can be found in the table in the section on the successor model above.
Refrigerant R290: Safety group A3 and installation instructions
The RC 2 GREEN control also operates with the natural refrigerant R290 (propane), charged with 69 grams at a maximum permissible pressure of 21 bar. According to DIN EN 378-1, R290 belongs to safety group A3 and is therefore flammable; according to an IKA leaflet on the refrigerant, the GWP value of R290 is 3. According to the operating instructions, a minimum room volume of 9 cubic metres and a clearance of at least 20 centimetres in front of and behind the unit must be maintained to ensure safe operation, so that no flammable mixture can form even in the event of a complete leak of the refrigerant charge. Practical note: For ongoing operation, as is standard practice for laboratory equipment using flammable refrigerants, it is recommended to install the unit in a sufficiently ventilated location with no open ignition sources in the immediate vicinity.
WiCo wireless controller: wireless operation with temperature programmes
In addition to the built-in TFT display, the RC 2 GREEN control features a wireless controller (WiCo), which displays the relevant process parameters wirelessly and facilitates operation of the unit. Up to 10 temperature programmes, each with 10 steps, can be freely programmed in the WiCo; a timer/counter function is also available. Both the internal probe and an external PT100 probe connected via the LEMO socket can be calibrated using the 3-point calibration method.
Selection guide: RC 2 GREEN control or RC 2 GREEN basic
The RC 2 GREEN control and RC 2 GREEN basic share the same refrigeration circuit, cooling capacity and pump; the difference lies in the control system and operation:
| Feature | RC 2 GREEN control (this product) | RC 2 GREEN basic |
| Cooling capacity at 20 °C | 800 W | 800 W |
| Temperature control | PID controller, TFT display | PT100 sensor, LED display |
| Display resolution | 0.01 K | 0.1 K |
| External PT100 connection (LEMO) | yes | no |
| WiCo wireless controller with programmes | yes | no |
| Weight | 26.5 kg | 25.5 kg |
If you wish to connect an external temperature sensor, programme temperature profiles or monitor the unit wirelessly, the RC 2 GREEN control is the right choice for you. If operating the unit directly without WiCo and an external sensor connection is sufficient, the IKA RC 2 GREEN basic is the slimmer and lighter alternative.
Differentiation within the IKA recirculating chiller range
Within the IKA temperature control unit range, the RC 2 GREEN control is the best-equipped dedicated cooling solution. Those looking for a more compact entry-level solution with lower cooling capacity will find it in the IKA RC 2 lite, which delivers up to 400 watts at 20 degrees Celsius. Those who need to actively heat as well as cool will find what they are looking for in the IKA HRC 2 GREEN control or, without the WiCo wireless controller, in the IKA HRC 2 GREEN basic; both are identical in construction to the RC 2 GREEN series but feature an additional heating function.
Typical applications
As an external cooling source with a closed circuit and programmable temperature control, the RC 2 GREEN control is suitable, amongst other things, for:
- Cooling rotary evaporators, such as the IKA RV 10 digital V-C or the IKA RV 3 V-C
- Cooling reflux condensers during syntheses and extractions with recurring temperature profiles
- As a cooling source for laboratory reactors, double-walled vessels and other equipment with heat exchangers
- Processes with external PT100 measurement directly on the test sample
Connection, installation and ongoing operation
The integrated pressure/suction pump achieves a maximum flow rate of 21 l per minute at a maximum pump pressure of 0.5 bar on the pressure side and 0.25 bar on the suction side, connected via M16x1 threaded connections. The internal bath has a capacity of between 1.4 and 4.0 l. In addition to RS232 and Micro-USB, a LEMO socket provides a third connection for an external PT100 temperature sensor. The permissible ambient temperature range is 5 to 32 degrees Celsius at a maximum relative humidity of 80 per cent; the housing is protected to IP 21 in accordance with DIN EN 60529.
Technical details
| Device type | Refrigerated circulating bath |
| Operating temperature range | -30 °C to room temperature (up to 70 °C with external heating) |
| Temperature control | PID |
| Temperature stability (DIN 12876, at -10 °C) | ±0.15 K |
| Temperature sensor (internal, 3-point calibratable) | PT100 |
| Connection for external temperature sensor | PT100 via LEMO socket |
| Display resolution | 0.01 K |
| Setting accuracy of setpoint temperature | 0.1 K |
| Cooling capacity at 20 / 10 / 0 / -10 / -20 / -30 °C | 800 / 700 / 500 / 400 / 200 / 90 W |
| Refrigerant | R290, 69 g, max. 21 bar |
| Pump type | Pressure/suction pump |
| Max. pump pressure (discharge / suction side) | 0.5 bar / 0.25 bar |
| Max. flow rate (0 bar back pressure) | 21 l/min |
| Pump connections | M16x1 |
| Filling volume | 1.4 to 4.0 l |
| Warning functions | visual and audible, over- and under-temperature; low-level protection |
| Calibration options | yes |
| Noise level | 61 dB(A) |
| Interfaces | RS232, Micro-USB, LEMO (external PT100) |
| Protection class according to DIN EN 60529 | IP 21 |
| Permissible ambient temperature | 5 to 32 °C |
| Permissible relative humidity | max. 80 % |
| Dimensions (W x H x D) | 220 x 475 x 525 mm |
| Weight | 26.5 kg |
| Voltage / Frequency / Power consumption | 230 V, 50/60 Hz, 350 W (other variants available: 115 V / 100 V) |
Scope of delivery
- 1 x IKA RC 2 GREEN control recirculating cooler (ID No. 0025006638)
- 2 x hose connectors for DN 8 hoses
- 2 x connectors for DN 12 hoses
- 1 x USB cable (USB A to Micro-B), 2 m
- 1 x PT 100.30 temperature probe
- 1 x charger for WiCo
Regulatory information
As an electrical appliance, the RC 2 GREEN control is subject to the German Electrical and Electronic Equipment Ordinance (ElektroG) and is registered with the EAR Foundation under WEEE registration number DE 66784213. At the end of its service life, the appliance must not be disposed of with household waste, but must be taken to a separate collection point for waste electrical and electronic equipment. The R290 refrigerant contained in the refrigeration circuit must be professionally recovered by an authorised refrigerant recovery company prior to disposal.
Frequently asked questions about the RC 2 GREEN control
Is the RC 2 GREEN control the successor to the RC 2 control?
Yes. IKA ceased production of the RC 2 control on 31 July 2026; its successor is the RC 2 GREEN control, which uses the natural refrigerant R290 and, according to IKA, offers approximately double the cooling capacity compared with the previous generation of units.
Is R290 hazardous in everyday laboratory use?
R290 (propane) is a natural but flammable refrigerant classified in safety group A3 according to DIN EN 378-1. According to the operating instructions, the minimum room size of 9 cubic metres specified by the manufacturer and the clearance of at least 20 centimetres around the unit ensure that, even in the event of a complete leak, no flammable mixture will form.
How does the RC 2 GREEN control differ from the RC 2 GREEN basic?
Both share the same refrigeration circuit, cooling capacity and pump. The RC 2 GREEN control also features a PID controller with a TFT display, a LEMO socket for an external PT100 sensor and the WiCo wireless controller; as a result, it is around 1 kilogram heavier.
Is there still an R134a unit from this series in stock?
No, there is no longer any stock of the RC 2 control. An alternative featuring the non-flammable refrigerant R134a and 400 watts of cooling capacity, though without the WiCo wireless controller, is the IKA RC 2 basic, which remains available from stock.
Can an external temperature sensor be connected?
Yes, an external PT100 sensor can be connected via the LEMO socket and calibrated using a 3-point calibration, for example to take measurements directly within the test specimen rather than in the unit’s bath.
Individual requirements and procurement service
Our procurement service is here to assist you with suitable connection hoses, additional valves, a WiCo mounting bracket or integration with existing laboratory reactors. Please also feel free to contact us if you have any questions regarding certificates and approvals.