PTC-Resistor Relay MSF220V/ MSF220VU
Manufacturer:
ZIEHL
Do you have a question?
What are the key features of the PTC-Resistor Relay MSF220V/ MSF220VU?
How many PTC thermistor circuits can the MSF220V/ MSF220VU monitor?
What is the input voltage range for the MSF220V and MSF220VU variants?
Does the MSF220V/ MSF220VU have a fan control feature?
What kind of alarm outputs does the MSF220V/ MSF220VU provide?
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The MSF 220 V is particularly suitable for the temperature monitoring at dry transformers. 3 PTC-circuits with different nominal response temperatures (NRT) can be connected to this unit, one for controlling a fan (forced cooling) and two for alarms. Each PTC-circuit is monitored for break and short circuit. This reduces the probability of false alarms.
- 3 PTC-circuits
- MSF 220 VU for universal supply voltage AC/DC 24-240 V
- intelligent control of fan (relay K0, 1 normally-open contact)
- ALARM 1 in closed-circuit current mode (relay K1, 1 change-over contact) for pre alarm. Signals also error in any sensor and interruption of supply voltage.
- ALARM 2 in operation current mode (relay K2, 1 changeover contact). No signal when switching on and off the supply voltage.
- all output relays potentially separated from each other.
- monitoring of sensor lines
- TEST-button (stop possible before ALARM 2)
- Simple testing with disconnectable monitoring of break and short circuit (for 10 minutes).
- LEDs for ON, sensor error, Fan, ALARM 1 and ALARM 2
- UL recognized component
- plug-in terminals
- housing for mounting on DIN-rail or wall-mount
- mounting height 55 mm
- Accessory: Installation Frame ER4 for panel mount
Technical specifications
CAD Data
Certificates
FAQ / Product videos
Accessories
Front Mounting Kit Type ER
Version:
ER4, Housing V4, 4 TE
You found a device in that meets your requirements and you want to install it in a control panel or in the door of a control cabinet?With the installation frame of the ER series, this is possible for all ZIEHL devices in housings V4, V6 and V8 (width 70/105/140 mm).Enclosed by a high-quality frame made of anodized aluminum, all displays can be read outside the control cabinet. Switches, buttons and joystick can be operated.
MS-Tester
Normal PTC-resistor relays can be tested by simply disconnecting the sensor. PTC-resistor relays with monitoring of sensor short-circuit and break need more sophisticated test-equipment.With help of the ZIEHL MS-Tester also these relays can be easily tested for correct function. The included cable is designed for the connection of relays type MSF 220 V(U). Also any other PTC-resistor relay can be connected to the MS-Tester.Testdisconnect the PTC-resistor relayconnect the MS-Tester (T/0, T/1 and/or T/3) to the sensor inputsswitch on the relayincrease the resistance with the potentiometer (turn slowly) until the appropriate Alarm switchesreduce the resistance until the relay switches back (or a LED signals, that it is ready to switch back)if necessary, the values of the switching points can be measured at the terminals T/0, T/1, T/2 after disconnecting the relay. Typical values are 3000 O ... 4000 O for tripping and >1500 O for switching back.test break with push-button (only at relays with monitoring of sensor/line-break)test short circuit with push-button (only at relays with monitoring of sensor/lineshort-circuit)ATTENTION: At relay MSF 220 V(U), break or short-circuit in any sensor will result in an error message = ALARM 1. The LED "sensor" lights and the LED of the appropriate alarm blinks.HINT: cold PTCs have a resistance of 20...250 O, typical 50...120 O per sensor.
