Selected parameters OUTPUT SIGNAL 1 relay SETPOINTS 1, fixed MONITORED VARIABLE Temperature monitoring Others SIZE 45 mm POWER SUPPLY RANGE 24÷48 VAC/DC MONITORING FUNCTION Over temperature MOUTING Plug-in INPUT RANGE PTC
Monitoring Relays Motor temperature Types DTA01, PTA01, DTA02, PTA02 • Motor temperature monitoring relay • Measuring ranges: PTC according to EN 44081 • Remote and local alarm reset (DTA02, PTA02) • Output: 8 A SPDT (PTA01/DTA01/DTA02) or SPST (DTA01) 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 DTA01, DTA02PTA01, PTA02 Product Description Ordering Key DTA 01 C 230 DTA01, DTA02, PTA01 and PTA02 are precisethermis- tor monitoring relays. They can be used to monitor the temperature of the coils of a motor with built-in PTC’s.The alarm statusof therelaycanberesetby either an external contact or an internal button (DTA02, PTA02). The testbuttonallowsthe simulation of the fault condi- tion (DTA02, PTA02). The redLED indicatesthe alarm status. Housing Function Type Item number Output Power supply Type Selection Mounting OutputSupply: 24 to 48 VAC/DC Supply: 115 VACSupply: 230 VAC DIN-rail SPSTDTA 01 CD 48 DTA 01 C 115 DTA 01 C 230 Plug-inSPDTPTA 01 CD 48 PTA 01 C 115PTA 01 C 230 DIN-rail SPDTDTA 02 CD 48 DTA 02 C 115 DTA 02 C 230 Plug-inSPDTPTA 02 CD 48 PTA 02 C 115PTA 02 C 230 InputSpecifications Output Specifications Input (PTC)DTA01, 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 detection0 to 10 Ω Measurement voltage ≤ 2.5V (acc. to IEC 60034-11) Contact input DTA02 Terminals Z1, Z2 PTA02 Terminals 8, 9 Disabled > 10 kΩ Enabled< 500 Ω Alarm reset > 500 ms OutputSPST or SPDT relay Rated insulation voltage 250 VAC Contact ratings (AgSnO2) µ Resistive loadsAC 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) Specifications are subject to change without notice (04.06.10)1
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