Overview
The Tomar 490S-120 strobe beacon (model 490S-120-A for amber) is a Microstrobe series single-flash strobe light designed for visual signaling in industrial, commercial, and outdoor safety applications. The Microstrobe family features a low profile, single flash design with a plug-in replaceable lamp and Lexan lens. Operating on 120VAC power at 50/60Hz, this unit provides reliable, cost-effective warning signals with minimal maintenance requirements.
Key Features
- High efficiency solid state power supply fully potted in polyurethane for protection from moisture, vibration, and high voltage exposure
- All units are polarity protected and have built-in filters to protect against radio interference and spike voltages
- Available in 6 lens colors: Amber, Blue, Clear, Green, Purple, and Red
- Plug-in replaceable lamp and hermetically sealed Lexan lens with o-ring seal
- UL listed and NEMA 4X rated
- 1/2″ NPT female pipe mount configuration
Technical Specifications
- Input Voltage: 120VAC, 50/60Hz
- Operating Voltage Range: +/- 10% of rated voltage
- Lens Color: Amber
- Mounting: 1/2″ NPT Female Pipe Mount
- Enclosure Type: NEMA 4X Weatherproof
- Lens Material: Lexan with hermetic o-ring seal
- Power Supply: Solid state, polyurethane potted
- UL Listing: Yes
- Light Source: Plug-in field replaceable xenon strobe tube
- Series: Microstrobe
Typical Applications
The 490S-120 strobe beacon is widely used in manufacturing facilities, emergency response systems, traffic control, and industrial safety systems. Common installations include plant floor warning systems, dock loading areas, material handling equipment, chemical processing plants, and outdoor perimeter signaling where visible warning indication is required. The compact profile and weather-resistant design make it suitable for both indoor and outdoor industrial environments.
Compatibility & Replacements
Compatible With
- Standard 120VAC, 50/60Hz industrial power systems
- RFI-filtered industrial control environments
- Spike-voltage protected installations
- Outdoor and IP67-equivalent harsh environments (NEMA 4X rated)
- 1/2″ NPT female threaded pipe mounts
Replaces / Drop-In Replacement For
- 490S-120-A (Amber) — direct model match
- Other Tomar 490S-120 series variants in different colors (490S-120-R Red, 490S-120-B Blue, 490S-120-C Clear, 490S-120-G Green, 490S-120-P Purple)
- Legacy Tomar Microstrobe strobes requiring 1/2″ NPT mount and 120VAC operation
Works With
- Standard AC power distribution panels (120VAC, 50/60Hz)
- Industrial 120VAC control circuits
- RFI-filtered power supplies and surge protection devices
- Pole-mount and wall-mount installation systems with 1/2″ NPT fittings
- Replacement lamp assemblies matched to 490S-120 series












