Manufacturer: ZIEHL industrie-elektronik GmbH
Model / Type: MS 220K
Order Number: T221741
Device Type: PTC-Resistor Temperature Relay (single PTC circuit)
Supply Voltage: AC/DC 24 V
Voltage Tolerance: AC/DC 20.4…297 V
Frequency Range: 0/41 … 70 Hz
Power Consumption: < 1.5 W / < 4 VA
PTC Sensor Connection: According to DIN 44081/82
Connectable PTC Sensors: 1…6 in series
Trip (Cut-out) Resistance Range: approx. 3.3 kΩ…3.85 kΩ
Reclosing Point Resistance Range: approx. 1.7 kΩ…1.95 kΩ
Response Tolerance: ± 6 °C
Maximum Combined Cold Sensor Resistance: ≤ 1.65 kΩ
Terminal Voltage (Sensors): ≤ 2.5 V at R ≤ 3.65 kΩ; ≤ 9 V at R = ∞
Terminal Current (Sensors): ≤ 1 mA
Sensor Power Consumption: ≤ 2 mW
Output: 1 change-over relay contact (1 CO)
Automatic Reset: Yes (resets when measured resistance falls below reset threshold)
Housing Type: K-housing, vertical terminals
Mounting: Snap mount on 35 mm DIN rail or screw mount option
LED Indicators: Power-ON and Alarm status
Approvals: CE, UL recognized component
