Auxilliary Equipment
RB-Series Resistors
Danotherm’s RB-series resistors are purpose-engineered for critical scenarios where a compact form factor, reliable performance, and exceptional pulse resilience are essential design criteria. These heatsink-cooled, wire-wound units feature a robust extruded aluminium housing with deep cooling fins and a protective, gold-anodised finish. This highly optimized design ensures maximum corrosion resistance and superior heat dissipation for both high continuous loads and repeated pulse stress.
RB-SERIES RESISTORS
Danotherm RB-Series Resistors: Compact, Pulse-Resilient Performance for Heavy-Duty Control
The core element is built around a ceramic or steatite core with a copper-nickel or nickel-chrome alloy winding, guaranteeing excellent thermal conduction and uniform heat transfer. When mounted on a proper heatsink, units deliver nominal powers ranging from $12 text{W}$ up to $250 text{W}$, with working voltages spanning from $265 text{VAC}$ to as high as $2,300 text{VAC}$ depending on the model.
A critical advantage is the RB series’ unmatched overload capability: properly heatsinked resistors can safely sustain up to five times the nominal power for short periods (e.g., 5 seconds). This makes the series the ideal, trusted choice for demanding high-pulse, fault-current applications, and general use in control panels, test equipment, power electronics, and industrial environments requiring high reliability under combined thermal and electrical stress.
Full power ratings require proper heatsink mounting, leveraging natural or forced convection across the aluminium cooling fins. While nominally rated at IP00 (for internal cabinet mounting), the robust anodised finish provides crucial protection in humid, dusty, or mildly corrosive conditions.
For engineers specifying resistors for heavy-duty control cabinets or high-pulse repetitive applications, Danotherm’s RB-series delivers a compact, reliable solution with proven pulse resilience, excellent heat dissipation, and straightforward integration into any power system.
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