1 ph Overload Relay, SPDT/(1 Form C) Contact
PartSCM77C
MFG77C
Description
Littelfuse® Overload Relay, 1-Phase, Series: 77C, 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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- Built-in display, visual indication for programming, viewing real-time voltage or current and last fault code
- Programmable voltage and current settings, allows usage on wide range of systems
- 3 selectable restart options, choose from automatic, semi-automatic or manual to best meet individual application needs
- 3 programmable restart delay timers, program separate restart delay time for rapid cycle protection, motor cool down and dry well recovery
- Remote display compatibility, increases safety through remote display of real time data and fault history, without the need to open the cabinet, aids with arc flash safety regulations
- Flexible reset, reset can be done through pushbutton on relay or remotely with optional 777-MRSW or OL-RESET remote reset kit
- Network communications capability, compatible with Modbus, DeviceNet™, Profibus, or ethernet using optional communications module
- 2 to 800 A (external CTs required above 90 A) motor full amperage range
- Provides 480 VA at 240 VAC output SPDT relay contacts
- 480 VA at 240 VAC, B300 pilot duty rating, 10 A at 240 VAC general purpose
The 777/77C is a fully programmable electronic overload relay designed to protect any motor drawing 2-800 full load amps (external CTs are required above 90 A). The 777-HVR-SP and 77C (family of products) are for 1-phase 100 to 240 VAC applications. Common applications include conveyor systems, HVAC equipment, saws and grinders, fan motors and almost any pumping application. All of the overload relays provide unsurpassed protection by combining overload, underload and voltage 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.
| Type | 1-Phase |
| Contact Form | SPDT/(1 Form C) |
| Contact Rating | 10 A, 480 VA |
| Dimensions | 3.05 in H x 3.85 in W x 5.05 in D |
| Display Type | LED |
| Enclosure Type | IP20 |
| Frequency Rating | 50/60 Hz |
| Mounting Type | DIN Rail/Surface |
| Number of Poles | 1 |
| Power Rating | 10 W |
| Series | 77C |
| Temperature Rating | -4 to 158 deg F |
| Brand | Littelfuse® |
| UNSPSC | 39122332 |
| Alternate Part Number 1 | 13902838 |
| Country of Origin | US |
| Manufacturer | Littelfuse |
| UPC | 079458991192 |
| Manufacturer Part Number | 77C |
UL 508/1053 File No. E68520|CE IEC 60947-1/60947-5-1|IEC 68-2-27|CSA C22.2|ANSI/IEEE C62.41|PPROP65: This product can expose you to chemicals including nickel, which is known to the State of California to cause cancer
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