Danfoss EKS 221 Data sheet
Data sheet
Temperature sensor NTC 10 Kohm
EKS 221
NTC temperature sensor for temperature
measurements in the following areas:
• Refrigeration
• Air conditioning
• Heating
The sensor characteristic matches to:
• OPTYMA room controllers
• MCX unit controllers
The sensor is available in two versions:
• Sensor house in thermo plastic rubber and
flat cable
• Sensor house in steel and with round cable
Features • Nominal resistance of 10000 ohm at 25 °C
• Available with cable lengths up to 8.5 m
• Two main versions are available:
– Version with sensor housing in thermoplastic
rubber and flat cable (2 x 0.25 mm2) for
measuring range -50 – 120 °C and IPclass
IP67.
– Version with sensor housing in AISI 304
stainless steel and round cable (2 x 0.25 mm2)
for measuring range -50 – 110 °C and IPclass
IP68.
© Danfoss | DCS (im) | 2016.08
IC.PD.P30.W2.02 | 520B7449 | 1
Technical data
Sensor house Thermoplastic rubber Steel AISI 304
Temperature range -50 – 120 °C -50 – 110 °C
Cable material Thermoplastic rubber, flat, 2 × 0.25 mm2Thermoplastic rubber, round, 2 × 0.25 mm
Wire ends Tin plated Nipples
Time constant, water 2 m/s 10 seconds 10 seconds
IP Class IP67 IP68
Nominal resistance 10000 ohm at 25 °C
Tolerance ± 1%
Beta value 3435 at 25/85 °C
Tolerance at beta value ± 1%
2
Sensor house in thermoplastic rubber
Sensor house in steel AISI 304
R_nom
[Ohm]
Temp.
[°C]
Temp.
[°F]
595 120 248
757 110 230
972 100 212
1265 90 194
1667 80 176
2228 70 158
3020 60 140
4160 50 122
5827 40 104
8313 30 86
10000 25 77
12091 20 68
17958 10 50
27278 0 32
42450 -10 14
67801 -20 -4
111364 -30 -22
188500 -40 -40
Ordering
Type Sensor element Sensor house Cable, L= Number Code no.
150 084N3206
1 084N3210
50 084N3208
1 084N3209
EKS 221 NTC 10000 ohm / 25 °C
Thermo plastic
rubber
3.5 m
8.5 m
Steel AISI 304 1.5 m 150 084N3200
© Danfoss | DCS (im) | 2016.08 IC.PD.P30.W2.02 | 520B7449 | 2
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