![Tipo de relé térmico PTC MSF220VL Tipo de relé térmico PTC MSF220VL](https://www.dacpol.eu/41549-large_default/rele-termico-ptc-tipo-msf220vl.jpg)
![Tipo de relé térmico PTC MSF220VL Tipo de relé térmico PTC MSF220VL](https://www.dacpol.eu/41549-large_default/rele-termico-ptc-tipo-msf220vl.jpg)
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The MSF220VL is particularly suitable for monitoring of temperatures at dry transformers, when also the temperature of the core shall be measured. Monitoring of core temperature is especially required in rectifier transformers because of harmonics causing heat in the core. An intelligent control prolongs automatically the runtime of a cooling-fan, depending on the load of the transformer. Each PTC-circuit is monitored for break and short circuit. This reduces probability of false alarms. Relays in operating-current mode prevent from a trip-signal when switching on supply voltage.
The device can be adapted to different applications with 4 programs:
|
Rated supply voltage Us | AC / DC 24 - 240 V ± 15%, <3 VA |
---|---|
Connectable PTC resistors | 4 x 1...6 PTC according to DIN VDE V 0898-1-401 (formerly DIN 44081/82) |
Switching point | <4000 Ω |
Output relay | 4 x 1 change-over-contact (co) |
Type of contact | Type 2 (see general technical information) |
Test conditions | see general technical information |
Rated ambient temperature | -20 ... + 60 ° C |
Dimensions h x w x d | Design V4: 90 x 70 x 58 [mm] |
Attachment | on 35 mm DIN rail according to EN 60 715 or screws M4 |
Protection Housing/Terminals | IP30 / IP20 |
Weight | approx. 250 g |
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The MSF220VL is particularly suitable for monitoring of temperatures at dry transformers, when also the temperature of the core shall be measured. Monitoring of core temperature is especially required in rectifier transformers because of harmonics causing heat in the core. An intelligent control prolongs automatically the runtime of a cooling-fan, depending on the load of the transformer. Each PTC-circuit is monitored for break and short circuit. This reduces probability of false alarms. Relays in operating-current mode prevent from a trip-signal when switching on supply voltage.
The device can be adapted to different applications with 4 programs:
|
Rated supply voltage Us | AC / DC 24 - 240 V ± 15%, <3 VA |
---|---|
Connectable PTC resistors | 4 x 1...6 PTC according to DIN VDE V 0898-1-401 (formerly DIN 44081/82) |
Switching point | <4000 Ω |
Output relay | 4 x 1 change-over-contact (co) |
Type of contact | Type 2 (see general technical information) |
Test conditions | see general technical information |
Rated ambient temperature | -20 ... + 60 ° C |
Dimensions h x w x d | Design V4: 90 x 70 x 58 [mm] |
Attachment | on 35 mm DIN rail according to EN 60 715 or screws M4 |
Protection Housing/Terminals | IP30 / IP20 |
Weight | approx. 250 g |
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