TIME Mark 258B 3 Phase Monitoring Relay 240VAC UL Certified Auto Reset

Description

Product Overview

The TIME Mark 258B is a high‑performance 3‑phase monitoring relay engineered for demanding industrial environments. Built with a solid‑state voltage and phase‑angle sensing circuit, this device continuously monitors each phase of a three‑phase power system, instantly detecting conditions such as phase loss, low voltage, and phase reversal. Its compact dimensions—4.5 × 2 × 2 inches—and lightweight design (1 lb) allow seamless integration into crowded control panels, while the UL and CSA certifications provide confidence in safety and reliability. The relay operates on 240 VAC and supports both 50 Hz, 60 Hz, and 400 Hz models, making it versatile for a wide range of global applications. Automatic or manual reset options give users flexibility in how the device responds to fault conditions, ensuring that critical equipment can be protected without unnecessary downtime.

Usage

In manufacturing plants, the TIME Mark 258B is commonly installed alongside motor starters, variable frequency drives, and programmable logic controllers to provide real‑time phase monitoring. It is ideal for protecting pumps, compressors, conveyors, and other heavy‑duty machinery that rely on a stable three‑phase supply. The relay’s rapid fault detection helps prevent costly equipment damage caused by unbalanced power conditions, while its reset capabilities allow maintenance personnel to quickly restore normal operation after a transient event. Because the device is UL and CSA certified, it meets stringent safety standards required in sectors such as oil and gas, chemical processing, and renewable energy installations. Its robust construction also makes it suitable for outdoor enclosures when paired with appropriate environmental protection.

Why Choose Us

Choosing the TIME Mark 258B means selecting a relay that combines precision engineering with practical features designed for the end user. The solid‑state sensing technology eliminates mechanical wear points, delivering a longer service life compared to traditional electromechanical relays. Each unit undergoes rigorous testing to meet UL and CSA standards, ensuring consistent performance even under harsh temperature fluctuations and electrical noise. Our dedicated technical support team provides assistance from initial selection through installation and ongoing maintenance, offering troubleshooting guidance and replacement parts when needed. Additionally, the relay’s straightforward wiring diagram and clear labeling reduce installation time, helping engineers meet project deadlines without sacrificing quality. With a proven track record reflected in a 5‑star rating from verified customers, the TIME Mark 258B stands out as a reliable component for any phase‑monitoring application.

Key Features

• Instant detection of phase loss, low voltage, and phase reversal to protect critical equipment
• Solid‑state voltage and phase‑angle sensing for high accuracy and long lifespan
• Automatic or manual reset options give flexibility for different operational strategies
• UL and CSA certifications guarantee compliance with international safety standards
• Responsive customer support and easy‑to‑follow installation documentation

FAQ

What voltage range does the TIME Mark 258B support?

The relay is rated for 240 VAC operation and is compatible with 50 Hz, 60 Hz, and 400 Hz power systems, making it suitable for a wide variety of industrial applications.

Can the relay be reset automatically after a fault?

Yes, the device offers both automatic and manual reset modes. In automatic mode, the relay will reset itself once the fault condition clears, while manual mode requires an operator to reset the device.

Is the TIME Mark 258B suitable for outdoor installations?

While the relay itself is robust, it should be housed in a weather‑proof enclosure for outdoor use to protect against moisture, dust, and extreme temperatures.

How does the solid‑state sensing improve reliability?

Solid‑state components have no moving parts, which reduces wear and eliminates the need for periodic mechanical maintenance, resulting in a longer operational life and more consistent performance.

What certifications does the relay hold?

The TIME Mark 258B is certified by both UL (Underwriters Laboratories) and CSA (Canadian Standards Association), ensuring it meets rigorous safety and performance standards for industrial equipment.