DTA01C024 ETC2 | Alldatasheet

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Specifications are subject to change without notice (01.12.04) 1 Monitoring Relays Product Description Ordering Key Housing Function Type Item number Output Power supply

  • Motor temperature monitoring relay
  • Measuring ranges: PTC according to EN 44081
  • Remote and local alarm reset (DTA02, PTA02)
  • Output: 8 A SPDT relay normally energized
  • For mounting on DIN-rail in accordance with DIN/EN 50 022 (DTA01, DTA02) or plug-in module (PTA01, PTA02)
  • 22.5 mm Euronorm housing (DTA01, DTA02) or 36 mm plug-in module (PTA01, PTA02)
  • LED indication for relay and power supply ON (DTA02, PTA02)
  • Galvanically separated power supply Type Selection Input (PTC) DT A01, DTA02: Terminals T1, T2 PTA01, PTA02: Terminals 5, 6 Measuring ranges Max cold PTC resistance 1500 Ω Alarm setpoint 3100 Ω ± 10% Return setpoint 1650 Ω ± 10% Short-circuit detection 0 to 10 Ω Measurement voltage ≤2.5V (acc. to IEC 60034-11) Contact input DTA02 Terminals Z1, Z2 PTA02 Terminals 8, 9 Disabled > 10 k Ω Enabled < 500 Ω Alarm reset > 500 ms Motor temperature Types DTA01, PTA01, DTA02, PTA02 Input Specifications Output SPST or SPDT relay Rated insulation voltage 250 VAC Contact ratings (AgSnO2)µ Resistive loads AC 1 8 A @ 250 VAC DC 12 5 A @ 24 VDC Small inductive loads AC 15 2.5 A @ 250 VAC DC 13 2.5 A @ 24 VDC Mechanical life ≥ 30 x 106 operations Electrical life ≥ 105 operations (at 8 A, 250 V, cos ϕ = 1) Operating frequency ≤ 7200 operations/h Dielectric strength Dielectric voltage ≥ 2 kVAC (rms) Rated impulse withstand volt. 4 kV (1.2/50 µs) Output Specifications DTA 01 C 230 DTA01, DTA02, PTA01 and PTA02 are precise thermistor monitoring relays. They can be used to monitor the temperature of the coils of a motor with built-in PTC’s. The alarm status of the relay can be reset by either an external contact or an internal button (DTA02, PTA02). The test button allows the simulation of the fault condi- tion (DTA02, PTA02). The red LED indicates the alarm status. DTA01, DTA02 PTA01, PTA02 Mounting Output Supply: 24 VDC Supply: 24 VAC Supply: 115 VAC Supply: 230 VAC DIN-rail SPST DTA 01 C 724 DTA 01 C 024 DTA 01 C 115 DTA 01 C 230 Plug-in SPDT PTA 01 C 724 PTA 01 C 024 PTA 01 C 115 PTA 01 C 230 DIN-rail SPDT DTA 02 C 724 DTA 02 C 024 DTA 02 C 115 DTA 02 C 230 Plug-in SPDT PTA 02 C 724 PTA 02 C 024 PTA 02 C 115 PTA 02 C 230

2 Specifications are subject to change without notice (01.12.04) DTA01, DTA02, PTA01, PTA02 Mode of Operation DTA01, DTA02, PTA01 and PTA02 monitor the resis- tance value of the PTC resistors connected to the terminals T1 and T2 (or 5 and 6). This value is related with their temperature (often the three coils of a motor) so to offer a prompt reaction to over temperature. Example 1 - DTA01 or PTA01 The relay operates as long as the measured resistance is below the rated value. The relay releases if the mea- sured resistance (i.e. the temperature of the motor coils) exceeds the rated val- ue. Example 2 - DTA02 or PTA02 The relay operates and the yellow LED is ON as long as the measured resistance is below the rated value. The relay releases and the yellow LED is OFF if the measured resistance (i.e. the tempera- ture of the motor coils) exceeds the rated value. Provided that the resistance has dropped below the rat- ed value (i.e. the tempera- ture of the motor coils has returned cold), the relay operates when the intercon- nection between terminals Z1, Z2 or 8, 9 is interrupted or the reset button on the front of the unit is pressed. Power supply Overvoltage cat. III Rated operational voltage (IEC 60664, IEC 60038) through terminals: A1, A2 (DTA01, DTA02) 2, 10 (PTA01, PTA02) 724: 24 VDC ± 20%, insulated 024: 24 VAC ± 15% 45 to 65 Hz, insulated 115: 115 VAC ± 15% 45 to 65 Hz, insulated 230: 230 VAC ± 15% 45 to 65 Hz, insulated Dielectric voltage (1.2/50 µs) DC supply AC supply Supply to input 2 kV 4 kV Supply to output 4 kV 4 kV Input to output 4 kV 4 kV Rated operational power AC 2.5VA DC 1.5W Supply Specifications Reaction time Alarm ON delay < 150 ms (resistance rising from -20% to +20% set value) Reset delay < 500 ms (resistance decreasing from +20% to -20% set value) Accuracy (15 min warm-up time) Temperature drift ± 1000 ppm/°C Repeatability ± 0.5% on full-scale Indication for Power supply ON LED, green Relay ON LED, yellow Environment (EN 60529) Degree of protection IP 20 Pollution degree 3 (DTA01, DTA02), 2 (PTA01, PTA02) Operating temperature -20 to 60°C, R.H. < 95% Storage temperature -30 to 80°C, R.H. < 95% Housing dimensions DIN-rail version 22.5 x 80 x 99.5 mm Plug-in version 36 x 80 x 87 mm Weight Approx. 150g Screw terminals Tightening torque Max. 0.5 Nm acc. to IEC 60947 Approvals UL, CSA CE Marking Yes EMC Electromagnetic Compatibillity Immunity According to EN 61000-6-2 Emission According to EN 50081-1 General Specifications N (-) /c109 A2 11 T L N (-) /c109 10 1 L T 2 4 Wiring Diagrams DTA01 PTA01 µµ

Specifications are subject to change without notice (01.12.04) 3 DTA01, DTA02, PTA01, PTA02 N (-) /c109 A2 11 T L Z1 12 N (-) /c109 10 1 L T 298 4 Wiring Diagrams (cont.) DTA02 PTA02 µ µ 3100 /c87 1650 /c87 Operation Diagrams 3100 /c87 1650 /c87 Power supply Relay ON Relay ON Reset contact Power supply DTA01, PTA01 DTA02, PTA02 Dimensions 22.5 80 83.5 99.5 28.5 28.5 DIN-rail Plug-in