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Ziehl PTC thermistor relays protect motors, transformers, machines and equipment against thermal overload. These are according to DIN EN 60947-8 and are thus exchangeable. Used in conjunction with respective PTC thermistors they provide a reliable temperature protection in the temperature range 60 °C up to 180 °C. PTC-thermistors according DIN 44081 and DIN 44082 shall be connected. PTC thermistors are suitable for the installation into windings of electrical machines, bearings and transformers as well as to monitor the temperature of liquid media, airflow and gases. With ATEX approval, explosion-protected equipment in explosive gas atmospheres (marking G: gas) or in areas with combustible dust (marking D: dust) can be protected.
|
Rated supply voltage Us | AC 110-120 V AC 220-240 V (see type plate) AC 380-415 V (without UL marking) 24 V AC / DC (without potentially separation) |
---|---|
Tolerance of voltage Us | AC 0,9 Us -1,1 Us DC 21 ... 30 V |
Frequency (AC) | 50/60 Hz |
Tolerance of frequency | 45–65 Hz |
Power consumption | <2 VA |
PTC thermistor | acc. DIN VDE V 0898-1-401 (formerly DIN 44081/82) |
---|---|
Number | 1 ... 6 PTCs in series |
Cut-out-point | 3,3 kΩ… 3,65 kΩ… 3,85 kΩ |
Reclosing point | 1,7 kΩ… 1,8 kΩ… 1,95 kΩ |
Response tolerance | +/- 6 ° C |
Collective resistance cold thermistor | ≤ 1,65 kΩ |
Terminal voltage (PTC thermistor) | ≤ 2,5 V at R ≤ 3,65 kΩ ≤ 9 V at R = ∞ |
Terminal current (PTC thermistor) | <1 mA |
Short circuit | 20 Ω ≤ R ≤ 40 Ω |
Power consumption | <2 mW |
Contacts | 1 or 2 change-over contacts |
---|---|
Switching voltage max. | max. AC 415 V |
Switching current max. | 5 A |
Switching power max. (ohm resistive load) | 120 W at 24 V DC 1250 VA |
Rated operational current (Ie) | AC15 Ie = 3 A Ue = 250 V DC13 Ie = 2 A Ue = 24 V |
Recommended fuse | 4 A (gG) |
Mechanical contact life | 3 x 107 operations |
Electrical contact life | 1 x 105 operations at 240 V 5 A |
UL electrical ratings | 250 V ac, 3 A, general use 240 V ac, 1/4 hp, 2.9 FLA 120 V ac, 1/10 hp, 3.0 FLA C 300 |
Rated impulse voltage | 4000 V |
---|---|
Overvoltage category | III |
Contamination level | 3.....2 |
Rated insulation voltage Ui | 250 V.....415 V |
Transformer | EN 61558-2-6 |
On-period | 100% |
Rated ambient temperature range | -20 ... + 55 ° C |
EMC - Immunity | EN 61000-6-2 |
EMC - Emission | EN 61000-6-3 |
Vibration resistance EN 60068-2-6 | 2… 13,2 Hz ± 1 mm 13,2 ... 100 Hz 1 g |
Dimensions (H x W x D) | 90 x 35 x 58 mm |
---|---|
Line connection | 1 x 0,5… 2,5 mm2 (AWG 22-14) |
Stranded wire with insulated ferrules | 1 x 0,14 mm2 … 1,5 mm2 |
Insulation strip length min. | 8 mm |
Tightening torque | 0,5 Nm |
Protection class housing EN 60529 | IP 30 |
Protection class terminals EN 60529 | IP 20 |
Fitting position | Any |
Mounting | EN 60715 standard rail 35 mm |
Optional: Screw mounting | M4, only with additional bolt (not part of delivery) |
Weight | approx. 130 g |
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Ziehl PTC thermistor relays protect motors, transformers, machines and equipment against thermal overload. These are according to DIN EN 60947-8 and are thus exchangeable. Used in conjunction with respective PTC thermistors they provide a reliable temperature protection in the temperature range 60 °C up to 180 °C. PTC-thermistors according DIN 44081 and DIN 44082 shall be connected. PTC thermistors are suitable for the installation into windings of electrical machines, bearings and transformers as well as to monitor the temperature of liquid media, airflow and gases. With ATEX approval, explosion-protected equipment in explosive gas atmospheres (marking G: gas) or in areas with combustible dust (marking D: dust) can be protected.
|
Rated supply voltage Us | AC 110-120 V AC 220-240 V (see type plate) AC 380-415 V (without UL marking) 24 V AC / DC (without potentially separation) |
---|---|
Tolerance of voltage Us | AC 0,9 Us -1,1 Us DC 21 ... 30 V |
Frequency (AC) | 50/60 Hz |
Tolerance of frequency | 45–65 Hz |
Power consumption | <2 VA |
PTC thermistor | acc. DIN VDE V 0898-1-401 (formerly DIN 44081/82) |
---|---|
Number | 1 ... 6 PTCs in series |
Cut-out-point | 3,3 kΩ… 3,65 kΩ… 3,85 kΩ |
Reclosing point | 1,7 kΩ… 1,8 kΩ… 1,95 kΩ |
Response tolerance | +/- 6 ° C |
Collective resistance cold thermistor | ≤ 1,65 kΩ |
Terminal voltage (PTC thermistor) | ≤ 2,5 V at R ≤ 3,65 kΩ ≤ 9 V at R = ∞ |
Terminal current (PTC thermistor) | <1 mA |
Short circuit | 20 Ω ≤ R ≤ 40 Ω |
Power consumption | <2 mW |
Contacts | 1 or 2 change-over contacts |
---|---|
Switching voltage max. | max. AC 415 V |
Switching current max. | 5 A |
Switching power max. (ohm resistive load) | 120 W at 24 V DC 1250 VA |
Rated operational current (Ie) | AC15 Ie = 3 A Ue = 250 V DC13 Ie = 2 A Ue = 24 V |
Recommended fuse | 4 A (gG) |
Mechanical contact life | 3 x 107 operations |
Electrical contact life | 1 x 105 operations at 240 V 5 A |
UL electrical ratings | 250 V ac, 3 A, general use 240 V ac, 1/4 hp, 2.9 FLA 120 V ac, 1/10 hp, 3.0 FLA C 300 |
Rated impulse voltage | 4000 V |
---|---|
Overvoltage category | III |
Contamination level | 3.....2 |
Rated insulation voltage Ui | 250 V.....415 V |
Transformer | EN 61558-2-6 |
On-period | 100% |
Rated ambient temperature range | -20 ... + 55 ° C |
EMC - Immunity | EN 61000-6-2 |
EMC - Emission | EN 61000-6-3 |
Vibration resistance EN 60068-2-6 | 2… 13,2 Hz ± 1 mm 13,2 ... 100 Hz 1 g |
Dimensions (H x W x D) | 90 x 35 x 58 mm |
---|---|
Line connection | 1 x 0,5… 2,5 mm2 (AWG 22-14) |
Stranded wire with insulated ferrules | 1 x 0,14 mm2 … 1,5 mm2 |
Insulation strip length min. | 8 mm |
Tightening torque | 0,5 Nm |
Protection class housing EN 60529 | IP 30 |
Protection class terminals EN 60529 | IP 20 |
Fitting position | Any |
Mounting | EN 60715 standard rail 35 mm |
Optional: Screw mounting | M4, only with additional bolt (not part of delivery) |
Weight | approx. 130 g |
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