System Sensor EOLR-1 End-of-Line Epoxy Encapsulated (SPST) Relay

Ensure reliable power supervision and clean system interfacing with the System Sensor EOLR-1 epoxy-encapsulated SPST relay. Designed specifically for fire and security professionals, this compact end-of-line relay provides dependable monitoring of supervised circuits and power supplies in fire alarm, access control, and surveillance systems. The EOLR-1 activates across a broad 9–40 VDC range and features industry-standard contact ratings (120 VAC: 0.5 A resistive; 30 VDC: 3 A resistive), enabling straightforward integration with conventional panels and auxiliary equipment. Its potted, epoxy-sealed construction and pigtail wiring deliver long-term protection against moisture and vibration, reducing field failures and maintenance visits. At just 1.7" × 1.2" × 0.9", the relay fits neatly into tight panel layouts and junction boxes, helping installers maintain clean, code-compliant wiring. Backed by System Sensor quality and a 3-year limited warranty, the EOLR-1 is ideal for power supervision, monitoring, and interfacing tasks in fire alarm, security, and building management systems. Specify the EOLR-1 for dependable end-of-line supervision — contact sales or add to your next project bill of materials.

• Reliable end-of-line supervision for fire alarm and security systems, giving clear, dependable monitoring of power and circuit status
• Epoxy-encapsulated, potted design protects the relay in harsh environments for long-term durability and minimal maintenance
• Wide activation range (9–40 VDC) and SPST contact make integration with conventional panels and IoT monitoring devices simple
• Compact, low-profile package (1.7" × 1.2" × 0.9") saves space in panels and junction boxes for neater installations
• Pre-wired pigtail with minimum 8" leads speeds installation and reduces labor time on site
• Industry-grade contact ratings (120 VAC: 0.5 A; 30 VDC: 3 A) support common supervisory and control applications without overspecifying components