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Time Mark A258B 3-Phase Power Monitor

This is a 3-phase monitor relay designed for reversal, loss, and voltage monitoring. It features a coil voltage of 480 VAC and utilizes a single-pole double-throw (SPDT) contact configuration (1 Form C). The relay is mounted via a plug-in 8-pin octal connector and can handle contact currents up to 10 amps. The device includes adjustable trip settings, fault indicators, and is suitable for various industrial applications. It ensures reliable power line monitoring, with rugged construction, UL recognition, CSA certification, and a five-year unconditional warranty for peace of mind.

Authorized Distributors
Part No:A258B
Stock:53
Inv Date:06-11-2026
Price: Unit price: $142.26
Buy/RFQ:

Time Mark A258B 3-Phase Power Monitor Specifications:

  • Coil Voltage: 480 VAC
  • Contact Configuration: SPDT (1 Form C)
  • Contact Current Capacity: 10 amps resistive
  • Mounting: Plug-in 8-pin octal socket
  • Mechanical Life: 10 million operations
  • Electrical Life: 100,000 operations at rated load
  • Operating Temperature: -40° to 131°F
  • Humidity Tolerance: 0–97% without condensation
  • Enclosure Material: ABS plastic dust cover
  • Transient Protection: 2500 VAG for 10ms
  • Response Time: 50 ms (set or reset)
  • Approximate External Dimensions: 3.8" x 3.25" x 1.95"
  • Agency Approvals: UL Recognized, CSA Certified
  • Power Consumption: Around 0.75W to 1.5W depending on model

Buy the Buy Time Mark 3-Phase Monitor Part Number A258B Online

Purchase the Time Mark 3-Phase Power Monitor online today to ensure optimal power line protection for your industrial systems. With a rugged design, automatic or manual reset options, and UL recognition, this device provides reliable phase loss, reversal, and voltage monitoring. Its plug-in mounting and adjustable trip settings enable easy installation and configuration. Benefit from a five-year unconditional warranty and superior fault detection capabilities, ensuring your equipment is safeguarded against abnormal electrical conditions with precision and ease. Order now and enhance your system’s dependability.

Buy Time Mark A258B now and experience unmatched reliability and industrial power line monitoring performance.

Frequently Asked Questions

Where can I buy Time Mark A258B?

You can click on the BUY or RFQ button to purchase A258B from an authorized Time Mark distributor.

How do I troubleshoot issues or seek technical support for part A258B?

You can download the A258B datasheet or visit the Time Mark website for support.

Who is the manufacturer of A258B?

Time Mark

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