Overview
The Kilovac H-19 vacuum relay is a double-pole, double-throw (DPDT) electromechanical relay engineered for demanding high-voltage circuit control. With a rated contact voltage of 15 kV and nominal coil voltage of 26.5 VDC, this relay combines proven vacuum-switching technology with a 225 Ohm coil resistance for reliable performance in industrial, aerospace, and defense applications. Panel-mounted configuration with screw terminals ensures straightforward installation and maintenance.
Key Features
- Contact Configuration: DPDT (Double Pole, Double Throw) for flexible switching control
- High Voltage Rating: 15 kV AC contact voltage for demanding electrical circuits
- Coil Specification: 26.5 VDC, 225 Ohm resistance for industrial and aerospace duty
- Contact Current: 18 A nominal rating with robust contact design
- Vacuum Technology: Proven arc suppression and long contact life in harsh environments
- Mounting Style: Panel-mount with screw terminals for secure connection
Technical Specifications
The H-19 series represents TE Connectivity/Kilovac’s standard for vacuum relays in high-voltage applications. Specifications include contact voltage of 15 kVAC, contact current of 18 A maximum, coil voltage of 26.5 VDC nominal, and coil resistance of 225 Ohm. Operating temperature range and mechanical life data are available from TE Connectivity documentation. Weight is approximately 0.95 lb (0.43 kg). Screw-terminal construction ensures compatibility with industrial wiring practices and provides reliable long-term performance across temperature cycling and mechanical vibration.
Typical Applications
- Portable generators and automatic transfer switches
- High-voltage circuit switching in industrial facilities
- Aerospace ground support equipment
- Oil field and refinery protective systems
- Naval and marine electrical systems requiring high-voltage isolation
- Utilities and rapid transit system power distribution
Compatibility & Replacements
Compatible With
- TE Connectivity control systems and relay arrays
- Industrial 26.5 VDC coil-voltage circuits
- High-voltage panel assemblies rated for 15 kV switching
- Aerospace and defense equipment per MIL specifications
- Standard DIN rail and panel-mount enclosures
Replaces / Drop-In Replacement For
- Earlier Kilovac H-19 variants with matching coil and voltage ratings
- H-17 Series for equivalent high-voltage applications (verify pinout and coil data)
- Contact TE Connectivity for cross-reference to legacy WILMAR brand relays
Works With
- 26.5 VDC power supplies and control circuits
- Industrial control systems using vacuum relay switching
- High-voltage test and measurement equipment
- Aerospace and military equipment ecosystems
- Standard industrial relay sockets and terminal blocks
