Combo Unit, Self-Testing, Sealed Lead Acid (SLA), Dual Circuit Products (2 items)

Exit sign combo units are really a 2 for 1 solution and are the ideal solution where you need to install both an exit sign & an emergency light near each other. Exit combos allow you to maintain just one battery and unit while meeting two code requirements. There is a combo exit sign for almost every application and location.

This feature may be added to many exit sign and emergency light fixtures, the SDT feature prolongs battery life, and reduced man hours required OSHA tests. Self testing diagnostic automatically executes a 15 minute test every 30 days and runs a 90 minutes test once per year. The major reasons batteries typically fail is because they remain dormant for long periods of time. With the SDT feature automatically simulates a full discharge and full recharge to keep the batteries in peak performance. If any problems arise during this testing process it will report them through the user interface. This benefit drastically reduces man hours required by OSHA to manually perform the tests.

Sealed lead acid batteries are sometimes referred to as VRLA (valve regulated lead acid) and there are two primary types AGM and Gel. We offer both AGM and Gel batteries, each has its advantages over the other depending on the specific application. SLA batteries usually last between 3 to 5 years with typical usage. The optimum operating temperature for the lead-acid battery is 25°C (77°F). Elevated temperature reduces longevity. As a guideline, every 8°C (15°F) rise in temperature cuts the battery life in half.

Dual circuit exit signs. These unit allows the fixture to have dual power feeds. The idea behind this is so that when on normal power, the fixture is fed from a switch leg and can be turned off by the occupant. The PTS relay coil is fed by unswitched normal power. The normal power from the switch leg is connected to the normally open contacts on the PTS relay.