Best Emergency Lighting Transfer Switches for Reliable Power Backup
If you need seamless emergency lighting during a power outage, an emergency lighting transfer switch (ATS) is essential. This guide compares five top options, highlighting who each is best for and why. Ideal buyers include building managers planning for code-compliant backups, facilities teams upgrading existing systems, and contractors installing temporary or permanent emergency lighting controls. Below is a quick summary to help you decide which model fits your setup and budget.
| Product | Best For | Key Benefit |
|---|---|---|
| LVS Controls EPC-D-F-ATS Dimmable Emergency Lighting Transfer Switch | Small to medium facilities needing dimming | Dimmable 16A capability for flexible lighting levels |
| Hubbell Dual-Lite ATSD20 | Indoor spaces requiring universal 120/277V operation | Automatic transfer with solid compatibility |
| Iota ETS-20-DR | Systems needing auxiliary generator/inverter support | Auxiliary power integration for critical fixtures |
| Bodine GTD20A | Generator-backed emergency lighting for various loads | Broad load compatibility for multiple lamp types |
| Connecticut Electric EmerGen Kit | Portable generator setups for homes or small facilities | Outdoor/indoor versatility with a 30A rating |
LVS Controls EPC-D-F-ATS Dimmable Emergency Lighting Transfer Switch
The LVS Controls EPC-D-F-ATS is a dimmable emergency lighting transfer switch rated at 16A, suitable for environments that require adjustable lighting levels during power outages. It is best for facilities seeking simple, dimmable control without upgrading the entire lighting system. The device prioritizes automatic switching while permitting reduced intensity when needed. Caution: verify compatibility with your existing dimmable fixtures and any ballast requirements before installation.
Bodine GTD20A Lighting Relay Control Transfer/Bypass Device
The Bodine GTD20A is a versatile transfer/bypass device with a 20A maximum lighting load suitable for fluorescent, incandescent, HID, and LED fixtures. It senses loss of normal power and switches the lighting load to an alternate source. Choose this if you need reliable transfer for a mix of lamp types. Limitation: ensure the bypass feature aligns with your safety and maintenance protocols to avoid unintended bypass operation.
Hubbell Dual-Lite ATSD20 Emergency Lighting Transfer Switch
The ATSD20 handles universal 120/277VAC operation and is suitable for indoor dry or damp locations with an automatic transfer switch. This model is well-suited for facilities that require straightforward, dependable automatic switching between power sources. Best for: projects needing a robust, broadly compatible solution. Caution: verify the fixture location’s environmental class to ensure damp-rating compatibility.
Iota ETS-20-DR Emergency Lighting Control Auxilliary Transfer Device
The Iota ETS-20-DR provides emergency lighting control with auxiliary generator or inverter power for switched fixtures during power failures. Its input supports 120/277V and 50/60Hz operation, with an 8A LED driver rating at those voltages. Best for: projects needing auxiliary power support without a full generator integration. Limitation: higher-current LED loads may require separate driver considerations for continuous operation.
Bodine GTD20A Generator Transfer Device
This Bodine GTD20A generator transfer device switches emergency lighting to a backup generator or central inverter to maintain lighting for a specified period during outages. It is commonly used when fast, reliable transfer to a building’s backup power is needed. Best for: situations where a dedicated generator route is prioritized. Caution: ensure compatibility with your generator output and wiring configuration to avoid misalignment during transfer.
JOTTAELE Automatic Transfer Switch
The JOTTAELE Automatic Transfer Switch offers dual power switching for 110V, 50/60Hz, with auto and manual modes. It is designed for emergency backup using city power and reserve sources like generators or inverters. Best for: smaller installations needing a compact ATS with manual override. Caution: rely on automatic mode for critical loads only if the wiring supports automatic transfer timing and safety procedures.
Connecticut Electric EmerGen Transfer Switch Kit
The EmerGen Transfer Switch Kit from Connecticut Electric is designed for portable generator use with up to a 30-amp output and NEMA L14-30 receptacle, prepared for indoor or outdoor use with a NEMA 3R rating. It supports four 240-volt or eight single-pole circuits depending on configuration. Best for: homes or small facilities needing a portable, code-friendly generator switch. Limitation: installation requires careful alignment with the generator inlet and circuit layout.
Buying Guide: Key Purchase Considerations
- Voltage and current compatibility: Ensure the switch supports your operating voltage (120/277V, etc.) and the maximum load (amps) your lighting circuit demands.
- Automatic vs manual operation: Automatic transfers are essential for continuous critical lighting; manual models fit simple or temporary setups.
- Fixture compatibility: Check if the device supports LED, fluorescent, HID, and mixed lighting loads common in your facility.
- Environmental rating: Indoor, damp, or outdoor use requires compatible enclosure ratings and NEMA/weatherproof construction.
- Ease of installation: Look for devices with pre-wired configurations or clear wiring diagrams to minimize installation complexity.
- Reliability and maintenance: Choose devices with proven transfer performance and straightforward bypass or failure modes for maintenance access.
FAQ
- What is an emergency lighting transfer switch? A device that automatically or manually switches lighting from the main power source to a backup power source during an outage to maintain safe illumination.
- Do these switches work with both LED and incandescent lighting? Yes, most models are designed to handle a variety of lamp types, but confirm compatibility with your specific fixtures.
- Is automatic transfer always better? For most critical areas, automatic transfer ensures immediate continuity of lighting without user intervention.
- Can I install these devices outdoors? Some models are rated for outdoor or damp locations; check enclosure rating and environmental suitability first.
- Will these switch kits require professional installation? Depending on wiring complexity and local codes, professional installation is often recommended.
- Do they support generator backup? Many units are designed to switch to a generator or inverter when normal power fails, but verify your generator compatibility.