Littelfuse EL731-04-00 Earth Leakage Relay
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Littelfuse EL731-04-00 Earth Leakage Relay
Littelfuse EL731-04-00 Earth Leakage Relay
Part #:EL731-04-00
SKU #: 2410608
Key Features
Part #:EL731-04-00
SKU #: 2410608
Brand: Littelfuse
Analog Output: 4 to 20 mA
Dimensions: 1.9 in H x 3.8 in W x 5 in D
Series: EL731
Specifications: NO-NC (3 Form C) Programmable Output Contact, 24 to 12 AWG Plug-In, Wire Clamping Terminal
Voltage Rating: 120/240 VAC/VDC
- Adjustable pickup (30 to 5000 mA)- adjustable trip setting provides a wide range of low level protection and system coordination
- Frequency range (0 to 90 Hz, 20 to 6000 Hz) - operate in either AC or DC mode or both, use single or combined ranges, separate metering
- 32-char OLED display earth leakage metering, setup and programming
- Local LED indication visual trip, alarm, CT connection indication
- CT-loop monitoring - alarms when CT is not connected
- Analog output (4 to 20 mA)- connect to DCS, allows connection to an optional meter (PGA-0520) or control system
- Adjustable trip delay for quick protection and system coordination
- Alarm and trip settings detect a deteriorating condition before damage occurs
- Temperature-sensor input drive or motor temperature protection
- Output contacts 3 programmable, operate 2 alarm and 1 trip circuit
- Eliminates nuisance tripping due to harmonic noise
- Microprocessor based- no required calibration saves maintenance cost
- Universal power supply provides flexibility for numerous applications
- Modbus TCP communications
Littelfuse EL731-04-00 Earth Leakage Relay
Littelfuse Earth Leakage Relay, Series: EL731, 120/240 VAC/VDC, 4 to 20 mA Analog Output, NO-NC (3 Form C) Programmable Output Contact, 24 to 12 AWG Plug-In, Wire Clamping Terminal, DIN Rail/Panel Mount, 1.9 in H x 3.8 in W x 5 in D
Additional Description: LTFS-EL731-04-00 AC/DC Earth-Lkge Relay, 75-275V, Modbus
Catalog Description: The EL731 is a microprocessor-based AC/DC Sensitive Earth-Leakage Relay that offers complete coverage for all frequencies from 0 to 6,000 Hz. Two CTs are required for the entire frequency range, or one CT can be used for only low- or high-frequency detection. An RTD/PTC sensor input allows over-temperature protection for a motor or drive. The EL731 offers metering, password-protected alarm and trip settings and optional network communications. It is primarily used to add low-level ground-fault protection to variable-speed drives, and to dc circuits. COMPUTER TO RELAY CONNECTION: Connect the EL731 to the network using a standard Ethernet patch cable. Use of a crossover cable to connect the EL731 directly to the computer running IP-Config is not recommended. A typical router will assign an IP address to all connected computers that are using DHCP. The EL731 does not support the use of DHCP. If the EL731 is being set-up for first time, it is recommended to only have one EL731 connected t