The EGIS 5601B (PT Series) is a solid-state, self-contained time delay relay (TDR) rated for 30 A at 12 V, designed to manage auxiliary loads and prevent battery drain in systems where power draw must be delayed after engine shutdown. It uses advanced digital/FET circuitry for reliable operation across varied temperature and voltage ranges, combining voltage sensing and ignition sensing in a compact, waterproof package.
Key Features
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30 A single-output capacity — handles moderate auxiliary loads without needing external relays.
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Ultra-low off-state current draw (≈1.3 mA) — minimizes battery drain when the relay is not active.
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Adjustable off-time delay from ~15 minutes up to ~8 hours — allows flexibility in how long the load remains powered after shutdown.
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Flexible control modes — activation can be triggered by ignition (key), alternator voltage sensing, or a combination.
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Diagnostic feedback via LEDs — onboard multi-color indicators help with installation verification and troubleshooting.
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Protection features — includes over-voltage, under-voltage, and thermal overload safeguards to protect both the relay and connected equipment.
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Sealed, rugged construction — built to withstand harsh environments and allows mounting in varied locations.
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Digital / FET-based architecture — fewer moving parts means improved reliability and longevity compared to mechanical relays.
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4-year warranty — demonstrates manufacturer confidence in durability and performance.
Applications & Use Cases
The EGIS 5601B is ideal for systems that need controlled power after engine shutdown, while protecting battery integrity. Possible applications include:
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Fleet vehicles — maintaining power for data terminals, cameras, radios, or computing gear for a set time after engine off.
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Emergency vehicles — allowing equipment (e.g. scanners, communications, mobile data) to finish tasks (downloads, logging) after the engine is removed from service.
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Marine / RV — powering accessories like navigation electronics, lighting, or instrumentation for a defined period after engine shutdown, without risking battery depletion.
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Mobile workstations / trailers — allowing controlled shutdown of auxiliary equipment, such as surveillance, lighting, or sensors, while ensuring battery protection.
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Industrial / remote equipment — managing load power-off timing for sensors or controls in backup systems, field equipment, or unstaffed installations.
