3-Phase Monitor

C259-480VAC

The C259 3-Phase Monitor provides essential protection for industrial systems. This device safeguards equipment by continuously monitoring 480VAC lines, preventing damage from voltage anomalies. Its adjustable trip and restart delays allow for precise system integration, minimizing unnecessary shutdowns. With DPDT 600VAC output contacts, it offers robust control capabilities for various applications. The unit features a 5-year unconditional warranty, underscoring its reliability and long-term performance. Designed for surface mounting, its 20-gauge steel enclosure ensures durability in demanding industrial environments. The C259's adjustable voltage level and automatic reset function contribute to consistent operational uptime. Its repeat accuracy of ± 0.1% ensures precise monitoring. This monitor is a practical choice for critical applications requiring stable power monitoring and protection against phase loss, undervoltage, and overvoltage conditions, enhancing system longevity.

3Ph Pwr Mon

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c259-480vac

Specifications

Output ContactsDPDT 600VAC
Trip & Restart DelaysAdjustable
Voltage LevelAdjustable
Warranty5 Year Unconditional
Nominal AC Voltage (phase to phase)480VAC
Adjust Range (VAC)380-500
Frequency60Hz
Power Consumption6.9W
Transient Protection2500V for 10ms
Repeat Accuracy± 0.1% (fixed conditions)
Response TimeAdjustable 1 to 5 seconds
Reset TimeAdjustable 0.2 to 10 minutes
Reset TypeAutomatic
Dead BandApproximately 2%
Output Contacts TypeDPDT
Output Contact Rating3A at 480/600VAC, 80% PF
Output Contact Rating10A at 240VAC, 80% PF resistive
Expected Relay Life (Mechanical)10 million operations
Expected Relay Life (Electrical)100,000 operations at rated load
Operating Temperature-20° to +131° F
Humidity Tolerance0-97% w/o condensation
Enclosure Material20 gauge steel
MountingSurface

FAQs

What is the nominal operating voltage and adjustable range for the C259 3-Phase Monitor?
The C259 operates at a nominal 480VAC (phase to phase) with an adjustable range from 380VAC to 500VAC.
What are the specifications for the output contacts on the C259 monitor?
The C259 features DPDT output contacts rated for 3A at 480/600VAC (80% PF) or 10A at 240VAC (80% PF resistive).
What are the environmental operating conditions for the C259 3-Phase Monitor?
The C259 operates within a temperature range of -20° to +131° F and tolerates 0-97% humidity without condensation.