Viconics R851B-8 : Boiler Application Series Step Controllers, 8 Stage Unit Control, Vernier stage: 0 to 10 Vdc, 5 mA max.
The Viconics R851B/R851V series step controller is designed for cost effective, precise modulation of multi-stage control application. A common application is a multi step electric boiler. An integrated vernier control output will give a precise and full modulation of the load from 0 to 100% of the total capacity.
Specifications
| Operating Temperature | 0°C to 80°C ( 32°F to 176°F ) |
| Operating Humidity | 0 % to 95 % R.H. non-condensing |
| Relay outputs : Pilot Duty | 24-120 Vac = 720 VA / 240Vac=690 VA |
| Relay outputs : Motor Load | 120VAC=1HP / /240VAC=2HP |
| Vernier stage | 0 to 10 Vdc, 5 mA max. |
| Input impedance | 0 to 10 Vdc into 2Kohms minimum |
| Power Supply | 24 Vac -15%, +10% 50/60 Hz; 4 VA Up to18 VAUse a Class 1 ( properly fused ) or Class 2, CSA or UL recognized transformer for power supply & relay outputs. |
| UL Recognized | File # E212649 |
Datasheets
 | Viconics R851B/R851V Series Step Controllers Data Sheet |
- Product Category:
- Step Controller
