OMRON K7TM Heater Condition Monitoring Device

Operation
power
supply

Power supply voltage
and frequency

K7TM-A2MA: 100 to 240 V AC, 50/60 Hz
K7TM-A2MD: 24 V AC, 50/60 Hz, 24 V DC

Operating power
supply voltage range

85% to 110% of the rated voltage

Operating frequency
range

45 to 65 Hz

Power consumption

K7TM-A2MA: 8.5 VA max. (100 to 240 V AC)

K7TM-A2MD: 5.2 VA max. (24 V AC)/ 2.9 W max. (24 V DC)

Recommend external
fuse

T2A, time delay, high-breaking capacity

Ambient operating temperature

-10 to 55°C

Ambient operating humidity

25% to 85%

Storage temperature

-20 to 65°C (with no condensation or icing)

Altitude

2,000 m max.

Insulation resistance

20 mΩ min.
Between all external terminals and case;
Between all power supply terminals and all other terminals;
Between (all voltage input terminals + all CT input terminals) and (all
communications terminals + all transistor terminals);
Between all voltage input terminals and all CT input terminals;
Between the channels of voltage inputs;
Between the channels of CT inputs

Dielectric strength

2,000 V AC for 1 minute
Between all external terminals and case;
Between all power supply terminals and all other terminals;
Between (all voltage input terminals + all CT input terminals) and (all
communications terminals + all transistor terminals);
Between all voltage input terminals and all CT input terminals;
Between the channels of voltage inputs;
Between the channels of CT inputs

Vibration resistance

Frequency 10 to 55 Hz, 0.35-mm single amplitude, acceleration 50 m/s²,
10 sweeps of 5 min each in X, Y, and Z directions

Shock resistance

100 m/s², 3 times each in X, Y, and Z axes, 6 directions

Degree of protection

IP20

Terminal block type

Push-In Plus

Exterior color

Black (Munsell N 1.5)

Mounting

DIN Track

Weight

Approx. 200 g

Wiring
material

Wire type

Solid or Stranded wire

Wiring material

Copper

Recommended wires

0.25 to 1.5 mm²
AWG 24 to AWG 16

Stripping length
(without ferrules)

8 mm

Installation environment

Operation voltage: EN/IEC 61010-1 Pollution Degree 2, Overvoltage category II

Measurement circuit: EN/IEC 61010-2-030 Pollution Degree 2, CAT II 600 V or
CAT III 300 V

Industrial electromagnetic
environment

EN/IEC 61326-1 Industrial electromagnetic environment