Ordering
Controller
Accessories
(for spares and replacement purposes):
Model
Description
Comments
Code no.
AK-RC 204B
AK-RC 204B Gen. 2,5 O/P, Single phase
Includes:
• 1 x 1.5 m, NTC 10K sensor
• 1 x 3 m, NTC 10K sensor
080Z5001
AK-RC 205C
AK-RC 205C Gen. 2,5 O/P, Single phase
080Z5002
Name
Features
Qty
Code no.
3.5 m, NTC 10K Sensor
Thermo plastic rubber probe
1
084N3210
8.5 m, NTC 10K sensor
Thermo plastic rubber probe
50
084N3208
1.5 m, NTC 10K sensor
Stainless steel probe
150
084N3200
8 | AN41473467835501-000102
© Danfoss | Climate Solutions | 2022.08
Technical specifications
Features
Specifications
Power supply
230 V~ ± 10%, 50 Hz ± 5%
Maximum input power in the operation
6.3 VA
Maximum nominal current
15 A
Relay SSV / DEFROST - SPDT - 20 A
NO
EN60730-1: 15 (15) A 250 V~
NC
EN60730-1: 15 (13) A 250 V~
Relay FAN - SPST - 16 A
EN60730-1: 12 (9) A 250 V~
Relay COOL - SPST - 16 A
EN60730-1: 12 (9) A 250 V~
Relay AUX 1 - SPDT - 20 A
NO
EN60730-1: 15 (15) A 250 V~
NC
EN60730-1: 15 (13) A 250 V~
Relay AUX 2 - SPDT - 16 A
NO
EN60730-1: 12 (9) A 250 V~
NC
EN60730-1: 10 (8) A 250 V~
No. of relay operations
EN60730-1:100.000 operations
Probe temperature range
-50.0 – +99.9 °C
Resolution, setting and differential
0.1 °C
Thermometric precision
±1 °C
Loading tolerance of the NTC probe at 25 °C
±0.4 °C
Working ambient temperature
AK-RC 204B
-10 – +50 °C
AK-RC 205C
-10 – +45 °C
Storage ambient temperature
-30 – +60 °C
Protection degree
IP 65
Installation category
II s/ EN 60730-1
Pollution degree
II s/ EN 60730-1
Control device classification
Built-in assembly, with Type 1.B automatic operation action feature, for use in clean situations,
logical support (Software) class A and continuous operation. Degree of contamination 2 acc. to
UNE-EN 60730-1.
Double isolation between power supply, secondary circuit and relay output.
Temperature during ball-pressure test
Accessible parts: 75 °C
Parts which position active elements: 125 °C
Current of radio jamming suppression tests
270 mA
Voltage and current as per EMC tests
207 V, 17 mA
Type of assembly
Fixed internal
MODBUS address
Shown on label
Dimensions
290 mm (W) x 141 mm (H) x 84.4 mm (D)
Internal buzzer
Yes