Controller for electric duct heaters R30

Short description

R30 is a proportional controller for electric heaters with automatic voltage adaptation. It can control 30kW heater and has relay output for extra load control with contactor, on which can be connected load up to 12kW. Full load can be 42kW.


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Attributes

Country of Manufacture Poland
Max. controlled power 30 kW
Additional recommended load 12 kW
Total controlled power 42 kW
Max. adjustable current 45 A
Voltage 3 x 230 V / 3 x 400 V
Frequency 50-60 Hz
Number of phases 3
Dimensions (W x H x L) 240x260x175 mm
Internal replacement fuses 2 x 0.315 A
IP class IP20
Ambient temperature without condensation 0-40 °C
Dissipated power 120 W
Humidity 90%RH max.

Description

R30 is a proportional controller for electric heaters with automatic voltage adaptation. It can control 30kW heater and has relay output for extra load control with contactor, on which can be connected load up to 12kW. Full load can be 42kW. Regulates heat with turning load On of Off. Ratio between On-time and Off-time is varied 0-100% to suit the prevailing heat demand. Controller is designed only for electric heating control, control principle makes it unsuitable for motor or lighting control. Controller has zero phase-angle detection to prevent Radio Frequency Interference. It automatically adapts its control mode to suit the dynamics of the controlled object. For rapid temperature changes i.e. supply air control R30 will act as a PI controller, for slow temperature changes i.e. room control R30 will act as a P controller.