Temperature Monitoring Relay
last update: April 3, 2017
Power supply
voltage |
K8DT-TH[][]D: 24 VAC 50/60 Hz or 24 VDC
K8DT-TH[][]A: 100 to 240 VAC 50/60 Hz |
|
---|---|---|
Allowable voltage
range |
85% to 110% of power supply voltage | |
Power
consumption |
24 VAC or 24 VDC: 2.1 VA max. or 1.2 W max.
100 to 240 VAC: 3.1 VA max. |
|
Rated insulation
voltage |
253 VAC | |
Sensor
inputs |
K8DT-TH1 | Thermocouple: K, J, T, E;
Platinum-resistance thermometer: Pt100, Pt1000 |
K8DT-TH2 | Thermocouple: K, J, T, E, B, R, S, PL II | |
Setting method | Set of three rotary DIP switches | |
Indicators | Power (PWR): Green,
Alarm (ALM): Red |
|
Output form | Relay Output: SPDT contact
Transistor Output: 1 |
|
Output relay
ratings |
Rated load
5 A at 250 VAC (Resistive load) 5 A at 30 VDC (Resistive load) 1 A at 250 VAC (Inductive load) 0.2 A at 48 VDC (Inductive load) Minimum load: 5 VDC, 10 mA (reference values) Mechanical life: 10 million operations min. Electrical life: 5 A at 250 VAC or 30 VDC: 50,000 operations 3 A at 250 VAC/30 VDC: 100,000 operations |
|
Transistor output
ratings |
Rated voltage: 24 VDC (maximum voltage: 26.4 VDC)
Maximum current: 50 mA DC |
|
Ambient operating
temperature |
-20 to 60°C (with no condensation or icing) | |
Storage
temperature |
-25 to 65°C (with no condensation or icing) | |
Ambient operating
humidity |
25% to 85% RH (with no condensation) | |
Storage humidity | 25% to 85% RH (with no condensation) | |
Altitude | 2,000 m max. | |
Applicable wires | Stranded wires, solid wires, or ferrules | |
Applicable wire
size |
0.25 to 1.5 mm2 (AWG24 to AWG16) | |
Wire insertion force | 8 N max. for AWG20 wire | |
Screwdriver
insertion force |
15 N max. | |
Wire stripping
length |
8 mm | |
Ferrule length | 8 mm | |
Recommended flatblade
screwdriver |
XW4Z-00B (Omron)
SZF 0.4 × 2.5 (Phoenix Contact) 210-719 (Wago) SDI 0.4 × 2.5 × 75 (Weidmuller) |
|
Current capacity | 10 A (per pole) | |
Number of
insertions |
50 times | |
Case color | N1.5 | |
Case material | PC, UL 94 V-0 | |
Weight | Approx. 100 g | |
Mounting | Mounts to DIN Track, or screw mounting | |
Dimensions | 17.5 × 90 × 90 mm (W×D×H) |
Measurement
accuracy |
K8DT-TH1[][]: ±1% of the setting range or ±4 °C, whichever is larger.
K8DT-TH2[][]: ±1% of the setting range (±1%FS). |
|
---|---|---|
Hysteresis width | 2°C | |
Sampling cycle | 100 ms | |
Applicable
standards |
Approved
standards |
EN 61010-1
Installation environment: Overvoltage category II, pollution level 2 |
EMC | EN 61326-1 * | |
Safety
standards |
UL 61010-1 (Listing)
Korean Radio Waves Act (Act 10564) |
|
Insulation resistance | 20 MΩ min.
Between all external terminals and the case Between all power supply terminals and all input terminals Between all power supply terminals and all output terminals Between all input terminals and all output terminals |
|
Dielectric strength | 3,000 VAC for 1 min
Between all external terminals and the case Between all power supply terminals and all input terminals Between all power supply terminals and all output terminals Between all input terminals and all output terminals |
|
Impulse withstand
voltage |
6 kV (between live terminals and exposed, non-charged metal parts) | |
Noise immunity | Square-wave noise of 1 μs/100 ns pulse width with 1-ns rise time
100 to 240 VAC: 1,500 V power supply terminal common/normal mode 24 VAC: 1,500 V power supply terminal common/normal mode 24 VDC: 480 V power supply terminal common |
|
Vibration resistance | Frequency: 10 to 55 Hz, 0.35-mm single amplitude
10 sweeps of 5 min each in X,Y, and Z directions |
|
Shock resistance | 100 m/s2, 3 times each in 6 directions along 3 axes | |
Degree of protection | Terminals: IP20 |
* Industrial Electromagnetic Environment (EN/IEC 61326-1, Table 2)
K8DT-TH1 | °C | °F | ||
---|---|---|---|---|
Input type | Lower
limit |
Upper
limit |
Lower
limit |
Upper
limit |
K | -20 | 1019 | -40 | 1039 |
J | -20 | 870 | -40 | 1039 |
T | -20 | 420 | -40 | 740 |
E | -20 | 620 | -40 | 1039 |
Pt100 | -20 | 870 | -40 | 1039 |
Pt1000 | -20 | 870 | -40 | 1039 |
K8DT-TH2 | °C | °F | ||
---|---|---|---|---|
Input type | Lower
limit |
Upper
limit |
Lower
limit |
Upper
limit |
K | -20 | 1320 | -40 | 2340 |
J | -20 | 870 | -40 | 1540 |
T | -20 | 420 | -40 | 740 |
E | -20 | 620 | -40 | 1140 |
B | 0 | 1820 | 0 | 3240 |
R | -20 | 1720 | -40 | 3040 |
S | -20 | 1720 | -40 | 3040 |
PL II | -20 | 1320 | -40 | 2340 |
last update: April 3, 2017