ENDRESS+HAUSER RTA 421 Limit alarm switch
Manufacturer: Endress+Hauser
Type: Limit Alarm Switch
Model: RTA421
Order Code: RTA421-A11A
Supply voltage: 196 … 253 V AC
Frequency: 50 / 60 Hz
Power consumption: 3 VA
Input Voltage: 0/2 … 10 V
Input Current: 0/4 … 20 mA
Integration time: 4 S
Output signal: 24 V ±20%, 30 mA
Galvanic isolation: Between power supply and relay outputs
Number of Contacts: 2 Contacts
Contact type: Single Pole Double Through potential free contact per relay
Contact load: ≤ 250 VAC, 8(2) A / 30 VDC, 5(2) A
Ambient Temperature: -20 °C … +70 °C
Degree of Protection: IP20
Mounting: DIN rail
Housing: Plastic PC/ABS, UL 94V0
