Time Mark Corporation B269 3 Phase Power Monitor

Description:

The Time Mark Corporation B269 3-Phase Power Monitor is designed to continuously monitor 208/240 VAC three-phase power systems for overvoltage, undervoltage, phase loss, and phase reversal to protect motors and industrial equipment. Commonly installed in motor control centers, HVAC systems, pumps, compressors, conveyors, and manufacturing machinery where dependable three-phase power monitoring is essential. Maintenance teams, OEMs, and system integrators use the B269 for replacement, repair, retrofit, and preventive maintenance to minimize equipment damage and reduce unplanned downtime.

Applications:

The Time Mark B269 is a solid-state over and under voltage three-phase monitor that continuously supervises Wye or Delta power systems without requiring a neutral connection and de-energizes its output relay whenever high voltage, low voltage, phase loss, or phase reversal conditions are detected. It is widely used in industrial automation systems, water and wastewater facilities, motor control panels, compressors, conveyors, HVAC equipment, and process machinery where reliable three-phase power monitoring helps prevent costly electrical failures and production interruptions.

Technical Specifications:

• Manufacturer: Time Mark Corporation
• Manufacturer Part Number (MPN): B269
• Product Type: Over & Under 3-Phase Power Monitor
• Nominal Voltage: 208/240 VAC (Phase-to-Phase)
• Voltage Adjustment Range: Upper 210–280 VAC; Lower 170–240 VAC
• Frequency: 60 Hz
• Power Consumption: 3 W
• Monitoring Functions: Overvoltage, Undervoltage, Phase Loss, Phase Reversal
• Output Contacts: SPDT, 10 A at 240 VAC Resistive
• Trip Delay: Adjustable 1–10 Seconds
• Reset Time: 0.25 Seconds
• Reset Type: Automatic
• Repeat Accuracy: ±0.1% of Set Point
• Dead Band: Approximately 2%
• Mounting: Surface Mount
• Enclosure Material: ABS Plastic
• Operating Temperature: -20°F to +130°F (-29°C to +54°C)
• Certifications: UL Listed, CSA Certified
• Application: Three-phase motor, pump, compressor, HVAC, conveyor, and industrial equipment protection.

Common Replacements:

• Time Mark B269R
• Time Mark B259
• Time Mark B258B