Overview
The Electroswitch 7802B 24VDC is a Series 24 Manual Reset Lockout Relay (LOR) widely used in utility and industrial protection systems. This two-deck unit operates on a 24VDC coil and provides mechanical latching action for critical tripping and blocking applications. The 7802B combines rugged construction with precise electrical performance, making it ideal for generator protection, transmission line controls, and other safeguarding functions in power systems.
Key Features
- Two-Deck Configuration: Dual deck design for expanded control logic and multiple contact combinations
- Manual Reset Operation: Requires manual intervention to reset after trip, ensuring operational safety
- 24VDC Coil: Standard industrial voltage for wide compatibility with control systems
- ANSI/IEEE Compliant: Complies with ANSI/IEEE 37.90 and ANSI/IEEE 37.90.01
- Proven Reliability: Industry standard for safety and reliability in critical utility and industrial applications
- Compact Panel Depth: 4.38″ behind-panel depth fits standard control enclosures
Technical Specifications
The following specifications are verified from manufacturer and authorized distributor documentation:
- Number of Decks: 2
- Coil Voltage: 24VDC (B-coil designation)
- Reset Type: Manual Reset
- Handle Style: Oval
- Depth Behind Panel: 4.38″
- Nameplate Configuration: 17C-2L22
- Series: Electroswitch Series 24
Typical Applications
The 7802B is deployed in:
- Generator protection and synchronization systems
- Transmission and distribution line protection circuits
- Industrial motor and machinery shutdown interlocks
- Substation auxiliary control schemes
- Utility-grade blocking and tripping logic
Compatibility & Replacements
Compatible With
- Utility protection relays and schemes operating at 24VDC control voltage
- Electromechanical and solid-state protection systems
- Standard DIN rail and panel-mount control enclosures
- ANSI/IEEE 37.90 and 37.90.01 compliant protection systems
- Power system auxiliary control circuits and tripping chains
Replaces / Drop-In Replacement For
The 7802B is a direct replacement for earlier Electroswitch Series 24 two-deck LOR units operating on 24VDC with manual reset and identical terminal configurations. Verify terminal and mechanical compatibility with your system documentation before ordering. For specific model cross-reference, contact your system integrator or call our technical team.
Works With
- Electroswitch Series 24 accessory nameplates and lighted indicators
- Standard utility control relay panels and racks
- Manual or electric operator handles from Electroswitch Series 24 lineup
- Existing 24VDC auxiliary power supplies and control circuits
