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PTC-relays Type MSF220VL

Manufacturer:

Ziehl

Manufacturer part number:

T221674
Delivery date: 12 business days

PTC-Resistor-Relay for dry transformers, 4 PTC-circuits, intelligent fan control, monitoring of core temperature

435.4 CAD
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Quantity
10+
20+
Price
392 CAD
348.6 CAD
+ -
Products specifications
Brand ZIEHL
Country of origin Germany
Rated supply voltage AC/DC 24 V, ± 15 %, < 3 VA
Protection housing IP 30
Protection terminals IP 20
Switching point < 4000 Ω
Ambient temperature range -20...+60 °C
Connectable PTC resistors 1...6 PTC according DIN VDE V 0898-1-401 (formerly DIN 44081/82)
Attachment on 35 mm DIN rail according to EN 60 715 or screws M4

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.

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Description

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.

Products specifications
Brand ZIEHL
Country of origin Germany
Rated supply voltage AC/DC 24 V, ± 15 %, < 3 VA
Protection housing IP 30
Protection terminals IP 20
Switching point < 4000 Ω
Ambient temperature range -20...+60 °C
Connectable PTC resistors 1...6 PTC according DIN VDE V 0898-1-401 (formerly DIN 44081/82)
Attachment on 35 mm DIN rail according to EN 60 715 or screws M4
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