Littelfuse® Overload Relay, 3-Phase, Series: 777, 10 W Power, 50/60 Hz Frequency, 1C SPDT Contact Form, 10 A, 480 VA Contact, 1 Pole, DIN Rail/Surface Mounting, LED Display, IP20 Enclosure, -4 to 158 deg F, 3.05 in H x 3.85 in W x 5.05 in D Dimensions

Littelfuse® Overload Relay, 3-Phase, Series: 777, 10 W Power, 50/60 Hz Frequency, 1C SPDT Contact Form, 10 A, 480 VA Contact, 1 Pole, DIN Rail/Surface Mounting, LED Display, IP20 Enclosure, -4 to 158 deg F, 3.05 in H x 3.85 in W x 5.05 in D Dimensions

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More Info

The 777 is a fully programmable electronic overload relay designed to protect any motor drawing 2 to 800 full load amps (external CTs are required above 90 A). The 777 (family of products) is for 3-phase 200 to 480 VAC applications, with several specialized units for other voltage ranges and unique applications. Common applications include conveyor systems, HVAC equipment, saws and grinders, fan motors and almost any pumping application. Some unique applications include use with a Subtrol® equipped Franklin submersible motor to detect high motor temperatures and applications where a fast linear trip is required. All of the overload relays provide unsurpassed protection by combining overload, voltage, phase loss and reversal, voltage and current unbalance, power monitoring and underload based on current in one package. For standalone applications, the units incorporate a 3-digit LED display that is used for programming, providing real time operational information and displaying diagnostic codes to aid in troubleshooting a fault condition. The units also feature a communications port that can be used with communication modules listed in the 777 accessories section to form a Modbus, DeviceNet™, Profibus or Ethernet network. Up to 99 units can be remotely monitored and controlled from a PC, PLC or SCADA system and data logging through a PC with the optional solutions software. This capability allows for a simple, cost effective way to meet new requirements for arc flash safety.