Time Mark A257B 480VAC 3-Phase Power Monitor Relay Phase Loss Detector - New

Time Mark A257B 480VAC 3-Phase Power Monitor Relay Phase Loss Detector - Brand: Time Mark Corporation - Model Number: A257B-480VAC - Series: Model 257 Line Monitors - Type: Solid-State 3-Phase Voltage / Power Monitor - Voltage Rating: 380 to 480 VAC - Frequency Rating: 60 Hz - Contact Form: SPDT (Single Pole Double Throw) - Contact Rating: 10 Amps at 240 VAC - Pin Mount Style: 8-Pin Octal Base / Plug-In Socket Mount - Enclosure Protection: ABS Plastic Yellow Housing (NEMA 1 rating) - Safe Diagnostics: Integrated green indicator LED for Normal state and red adjustment dial for Trip calibration - Protection Features: Continuous line monitoring for sudden phase loss, low voltage brownouts, and phase reversal sequence anomalies - Condition: New open box surplus. The device is completely brand new, clean, and uninstalled. The original factory cardboard box has been opened to inspect the item, display the terminal label base, and take listing photographs. Includes the official factory instruction and description sheet. Up for sale is a brand new, unused Time Mark A257B 480VAC 3-Phase Power Monitor. Designed and manufactured by Time Mark Corporation, this professional-grade solid-state safety relay provides continuous diagnostic defense over commercial power lines to shield heavy industrial motors, packaging systems, and facility gear from catastrophic damage caused by sudden single-phasing phase losses, drop-off low voltage brownouts, or backwards phase reversal setups. The monitor utilizes a robust plug-in 8-pin base socket layout that requires no neutral connection, making it universally adaptable to both Wye and Delta 3-phase networks. The high-visibility yellow housing features a manual trip adjustment potentiometer dial on the crown, surrounded by dedicated red Trip and green Normal status indicators to enable instant onsite diagnostics. The unit is immaculate, free from electrical wear or scuffs, and comes paired with its original technical spec guide sheets. The factory distribution box shows standard warehousing shelf scuffs, tape marks, and handwritten storage tracking numbers as pictured. Please confirm your specific phase voltage settings and plug-in base matches before purchasing. WARRANTY: 120 DAYS SAME DAY SHIPPING AVAILABLE ON ORDERS MADE BEFORE 4PM EST. (CAN SHIP COLLECT ON UPS OR FEDEX ACCOUNT) SELL YOUR SURPLUS PremiumPLC BUYS ALL TYPES OF NEW AND USED INDUSTRIAL AUTOMATION & MRO SURPLUS ________________________________________________________________________________ 2219