Overview
The Clarostat VP25KA 2.5kΩ 25W variable wire-wound resistor is a precision component for power control and load regulation in industrial circuits. Built with vitreous enamel-coated wire-wound construction, this adjustable resistor delivers stable performance across demanding duty cycles. The VP25KA series is manufactured by Clarostat Sensors & Controls and features lug terminals for secure mounting and connection.
Key Features
- Adjustable wire-wound construction for variable resistance control
- 25W power rating suitable for industrial load control applications
- 2.5kΩ resistance with ±10% tolerance
- Vitreous enamel ceramic coating for environmental protection and heat dissipation
- Lug terminal configuration for panel and chassis mounting
- US-manufactured reliability and quality assurance
Technical Specifications
The Clarostat VP25KA resistor delivers consistent performance across temperature ranges typical of industrial equipment:
- Resistance: 2.5kΩ
- Power Rating: 25W
- Type: Wire-wound, adjustable/variable
- Tolerance: ±10%
- Coating: Vitreous enamel
- Terminal Style: Lug terminals
- Mounting: Chassis/panel mount with hardware
- Construction: Ceramic core, US-manufactured
Typical Applications
The VP25KA 2.5kΩ 25W variable resistor is commonly used in:
- Motor speed control and load regulation circuits
- Industrial power dissipation and braking resistor applications
- Variable voltage divider networks
- Equipment testing and calibration setups
- Phase angle control and AC circuit applications
- Legacy industrial control systems and retrofits
Compatibility & Replacements
Compatible With
- Industrial control panels requiring 25W power dissipation
- Legacy electrical and mechanical control systems
- Standard single-phase and three-phase power distribution circuits
- Manual and automatic load regulation systems
- Equipment designed for adjustable wire-wound resistor modules
Replaces / Drop-In Replacement For
- Clarostat VP25KA models across the resistance range (manufactured equivalents)
- Other 25W, 2.5kΩ vitreous enamel wire-wound resistors with lug terminals
- Legacy industrial resistor modules requiring identical power and resistance specs
Works With
- Standard industrial control wiring and lugged terminals
- Chassis-mount power distribution and thermal dissipation systems
- Manual load control and variable resistor circuits
- Industrial equipment retrofits and component replacement applications







