Monitoring Re la ys
Motor te m p e ra ture
Typ e s DTA0 1 , PTA0 1 , DTA0 2 , PTA0 2
• 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
DTA01, DTA02
PTA01, PTA02
Pro d uct De scrip tio n
DTA01, DTA02, PTA01 and external contact or an internal
PTA02 are precise thermistor button (DTA02, PTA02).
O rd e ring Ke y
DTA 0 1 C 2 3 0
Housing
Function
Type
monitoring relays.
The test button allows the
They can be used to monitor simulation of the fault condi-
the temperature of the coils of tion (DTA02, PTA02).
a motor with built-in PTC’s. The red LED indicates the
The alarm status of the relay alarm status.
Item number
Output
Power supply
can be reset by either an
Typ e Se le ctio n
Mounting
Output
Supply: 24 VDC
Supply: 24 VAC
Supply: 115 VAC
Supply: 230 VAC
DIN-rail
Plug-in
DIN-rail
Plug-in
SPST
SPDT
SPDT
SPDT
DTA 01 C 724
PTA 01 C 724
DTA 02 C 724
PTA 02 C 724
DTA 01 C 024
PTA 01 C 024
DTA 02 C 024
PTA 02 C 024
DTA 01 C 115
PTA 01 C 115
DTA 02 C 115
PTA 02 C 115
DTA 01 C 230
PTA 01 C 230
DTA 02 C 230
PTA 02 C 230
Inp ut Sp e cifica tio ns
O utp ut Sp e cifica tio ns
Input (PTC) DTA01, DTA02:
Terminals T1, T2
Terminals 5, 6
Output
Rated insulation voltage
SPST or SPDT relay
250 VAC
PTA01, PTA02:
Measuring ranges
Max cold PTC resistance
Alarm setpoint
Return setpoint
Short-circuit detection
Measurement voltage
Contact ratings (AgSnO2)
µ
1500 Ω
Resistive loads
AC 1
DC 12
8 A @ 250 VAC
5 A @ 24 VDC
2.5 A @ 250 VAC
2.5 A @ 24 VDC
≥ 30 x 106 operations
≥ 105 operations
3100 Ω ± 10%
1650 Ω ± 10%
0 to 10 Ω
Small inductive loads AC 15
DC 13
≤2.5V (acc. to IEC 60034-11)
Mechanical life
Electrical life
Contact input
DTA02
PTA02
Disabled
Enabled
Alarm reset
Terminals Z1, Z2
Terminals 8, 9
> 10 kΩ
< 500 Ω
> 500 ms
(at 8 A, 250 V, cos ϕ = 1)
Operating frequency
≤ 7200 operations/h
Dielectric strength
Dielectric voltage
Rated impulse withstand volt. 4 kV (1.2/50 µs)
≥ 2 kVAC (rms)
Specifications are subject to change without notice (01.12.04)
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