SSU-PAM-EOLR SPACE AGE

Product Overview 

The SSU-PAM-EOLR is a specialized encapsulated relay designed specifically for End-of-Line (EOL) supervision of 4-wire smoke detector power circuits. This device provides a set of Form A (SPST) contacts that remain energized as long as power is present at the end of the detector run. If power is lost due to a wire break or power supply failure, the relay de-energizes, opening the EOL circuit and triggering a trouble condition at the fire alarm control panel. Its wide operating voltage range makes it compatible with both 12VDC and 24VDC systems.

Key Features

• Power Supervision: Specifically engineered to monitor the integrity of 4-wire smoke detector power loops.
• Wide Input Range: Operates reliably from 9VDC to 40VDC, supporting both 12V and 24V nominal systems.
• Form A Contacts: Features a normally open (when energized) SPST contact rated for 3A @ 120VAC.
• Constant Current Draw: Maintains a low, stable operating current of approximately 15mA to 20mA across its voltage range.
• Encapsulated Housing: Rugged, moisture-resistant potting protects the internal components from environmental damage.
• Simplified Installation: Includes 6-inch flying leads and a self-adhesive mounting pad for quick placement inside a backbox.
• Polarity Sensitive: Diode-protected input ensures proper operation and circuit isolation.