Overview
The STI 42998-0030 relay board assembly is a REV. B industrial control module designed for reliable relay switching in manufacturing, facility management, and process automation environments. This discontinued module carries the alternate designation 17766-0070 and is recognized across the industry as a dependable solution for general-purpose relay applications. The board is available in used condition, fully functional and tested, making it an economical choice for replacement, repair, or component-level troubleshooting.
Key Features
- Form C relay contacts rated for industrial switching applications
- Compact PCB design with screw/PCB terminal options for flexible installation
- LED indicator support for zone or circuit status monitoring
- Multiple relay pole configurations for diverse control scenarios
- Lightweight design (0.25 lbs) for easy integration into existing cabinets
Technical Specifications
Detailed specifications for the STI 42998-0030:
- Part Number: 42998-0030 (Primary), 17766-0070 (Alternate)
- Product Type: Relay Board Assembly
- Revision: B
- Status: Discontinued by manufacturer
- Relay Contact Rating: Form C (1x normally open, 1x normally closed)
- Weight: 0.25 lbs
- Mounting: PCB / screw terminal
- Material Grade: 94V (UL certification)
Typical Applications
The STI 42998-0030 relay board is suitable for:
- Facility alarm and alert distribution systems
- Industrial process control and monitoring
- Fire alarm auxiliary relay circuits
- Zone-based switching and control logic
- Equipment replacement and repair on legacy installations
- OEM and integration projects requiring compact relay switching
Compatibility & Replacements
Compatible With
- STI fire detection and notification systems
- Industrial control cabinets and relay racks
- Standard PCB-mounted relay panel assemblies
- Facility management and building automation systems
- General-purpose 120 VDC and 125 VDC control circuits
Replaces / Drop-In Replacement For
- STI 17766-0070 — direct replacement with same form factor and terminal arrangement
Works With
- Omron and STI relay sockets designed for G7SA-series components
- Standard PCB interconnect cables (2 ft. conductor assemblies)
- Screw and spring-cage terminal blocks common to industrial relay modules
- Building automation and safety systems using Form C relay logic
