Electrical Relays and Accessories

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  • Littelfuse
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Littelfuse
The ALT alternating relays are used to alternate between two loads. The ALT is commonly used in duplex pumping applications to balance the runtime of both pumps. The ALT-S is used in single high-level float applications. When the float switch opens, the alternating relay changes state, forcing the other pump to run the next time the float closes. All ALT relays have a built-in debounce feature that prevents the relay from changing state if the switch or float contact bounces momentarily. The ALT-X has an internal cross-connected relay and is used in dual high-level float applications. These floats are commonly referred to as lead and lag floats. The pumps alternate as in the ALT-S version but the crossconnected relay configuration allows both pumps to run simultaneously when both the lead and lag floats are closed. These relays are also available with a built-in switch (SW option) that is used to manually force one of the pumps to run every time the float switch is closed. This is helpful when a pump has been removed for repair or for test purposes. In the case of the ALT-X-SW, the switch essentially forces one pump to be the lead pump, while still allowing the second to run when both floats are closed. Must use the OT08PC socket for UL Rating!
MFR: Littelfuse
MFR #: ALT-115-S-SW
UPC: 079458991314
Item #: 1382862
Available to Order
Phone: 1-855-999-2372 Email Contact Us
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Littelfuse
Solid State Timer
MFR: Littelfuse
MFR #: KSDB314SP
UPC: 079458995565
Item #: 150727
In Stock -
$231.45 each
Availability
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Littelfuse
Ground Fault Ground-Check Monitor
MFR: Littelfuse
MFR #: SE-105
UPC: 079458188233
Item #: 454484
Available to Order
$5565.63 each
Availability
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Littelfuse
Gf/Gc Term Assembly 5.6V 50W Tc
MFR: Littelfuse
MFR #: SE-TA6A
UPC: 079458989540
Item #: 531235
Available to Order
$1949.48 each
Availability
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Littelfuse
Used On Systems Up To 1 kV.
MFR: Littelfuse
MFR #: ER-600VC
UPC: 079458977950
Item #: 450698
Available to Order
$1681.03 each
Availability
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Siemens
Overload relay 50...200 a for motor protection size s6, class 10 mount. onto cont./ stand-alone main circuit through transf. aux. circuit screw connection manual-automatic-reset
MFR: Siemens
MFR #: 3RB2056-1FW2
UPC: 040892624403
Item #: 252557
Available to Order
$876.86 each
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Siemens
Plug-in Relay, Premium LED, Mechanical Flag 5-pin Square Base SPDT, 15A, 24VAC Uses Socket 3TX7144-4E7
MFR: Siemens
MFR #: 3TX7110-5JC13
UPC: 754554759838
Item #: 791427
Available to Order
$42.84 each
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Siemens
Contactor 3TG1010-0bb4-screw terminals 4NO 24VDC
MFR: Siemens
MFR #: 3TG1010-0BB4
UPC: 754554404639
Item #: 615052
Available to Order
$293.94 each
Availability
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Siemens
TIME RELAY, MULTI-FUNCTION, 1 CO CONT., 13 FUNCTIONS, 15 TIME SET. RANGES, (1, 3, 10, 30, 100), (S/MIN/HR), 12... 240 V AC/DC AT AC 50/60HZ, LED, SPRING-LOADEDTERM. (PUSH-IN)
MFR: Siemens
MFR #: 3RP25052AW30
UPC: 887621914868
Item #: 1267570
Available to Order
$307.44 each
Availability
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Siemens
TIME RELAY, MULTI-FUNCTION, 2 CO CONTACTS, 27 FUNCTIONS, 15 TIME SETTING RANGE(1,3,10, 30, 100) (S, MIN, HR), AC/DC 12... 240V, AT AC 50/60HZ, LED, SCREW TERMINAL
MFR: Siemens
MFR #: 3RP25051BW30
UPC: 887621914844
Item #: 908628
Available to Order
$380.41 each
Availability
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Siemens
Time rel., multi-function, 1 co contact, 13 functions, 15 time set. ranges, (1,3, 10, 30, 100), (s/min/hr), 12...240V AC/DC at AC 50/60HZ, led, screw terminal
MFR: Siemens
MFR #: 3RP25051AW30
UPC: 887621914813
Item #: 945461
Available to Order
$307.44 each
Availability
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Siemens
Plug-in relay, premium led, mechanical flag 8-pin octal base dpdt, 10a, 120VAC uses socket 3TX7144-1e2 or 3TX7144-4e2
MFR: Siemens
MFR #: 3TX7112-1LF13
UPC: 754554759722
Item #: 228177
Available to Order
$75.96 each
Availability
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Siemens
Overload relay 50...200 a for motor protection size s6, class 20 mount. onto cont./ stand-alone main circuit through transf. aux. circuit screw connection manual-automatic-reset
MFR: Siemens
MFR #: 3RB2056-2FW2
UPC: 040892624441
Item #: 723160
Available to Order
$953.42 each
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Siemens
OVERLOAD RELAY 6...25 A FOR MOTOR PROTECTION SIZE S0, CLASS 10 FOR MOUNTING ONTO CONT. MAIN CIRCUIT SCREW CONNECTION AUX. CIRCUIT SCREW CONNECTION MANUAL-AUTOMATIC-RESET
MFR: Siemens
MFR #: 3RB2026-1QB0
UPC: 040892575682
Item #: 357377
Available to Order
Phone: 1-855-999-2372 Email Contact Us
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Siemens
Esp200 catalog no 48ate3s00 solid state overload relay for motor protection 10 to 40 amp size a1 3 phase class 5...30, switchable direct mounting and stand-alone main circuit windows auxiliary circuit scrw terminal manual automatic reset
MFR: Siemens
MFR #: 3UB81234EW2
UPC: 662643897227
Item #: 235519
Available to Order
$519.51 each
Availability
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Siemens
Esp200 catalog no 958gb3sa solid state overload relay for motor protection 25 to 100 amp size b 3 phase class 958, trip curve a direct mounting and stand-alonemain circuit windows auxiliary circuit scrw terminal manual automatic reset
MFR: Siemens
MFR #: 3UB85335GW2
UPC: 662643897319
Item #: 582224
Available to Order
$1187.91 each
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Siemens
Esp200 catalog no 48atb3s00 solid state overload relay for motor protection 0.75 to 3.4 amp size a 3 phase class 5...30, switchable direct mounting and stand-alone main circuit screw terminals auxiliary circuit scrw terminal manual automatic reset
MFR: Siemens
MFR #: 3UB81134BB2
UPC: 662643897197
Item #: 185130
Available to Order
$519.51 each
Availability
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Siemens
Overload relay 27...32 a for motor protection sz s0, class 10, f. mounting ontocontactor main circuit screw terminal aux. circuit screw terminal manual-automatic-reset
MFR: Siemens
MFR #: 3RU21264EB0
UPC: 662643919370
Item #: 758640
Available to Order
$263.18 each
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Siemens
Overload relay 5.5...8.0 a for motor protection sz s00, class 10, f. mounting onto contactor main circuit screw terminal aux. circuit screw terminal manual-automatic-reset
MFR: Siemens
MFR #: 3RU21161HB0
UPC: 662643920444
Item #: 723885
Available to Order
$159.10 each
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Littelfuse
50-W ground-check termination assembly with convenient mounting holes and screw terminals.
MFR: Littelfuse
MFR #: SE-TA12A
UPC: 079458989489
Item #: 482948
Available to Order
$1949.48 each
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Littelfuse
Used when replacing an Atkinson Omser II with an SE-130-Series Monitor.
MFR: Littelfuse
MFR #: PMA-8
UPC: 079458978421
Item #: 1008517
Available to Order
$1690.93 each
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Littelfuse
The SE-325 Neutral-Grounding-Resistor Monitor is used on resistance-grounded systems up to 25 kV to monitor the integrity of the neutral-to-ground path and to detect ground faults. It measures current and voltage in a transformer or generator neutral-to-ground connection and continuity of the neutral-grounding resistor (NGR). The SE-325 coordinates these three measurements to detect a loose connection, corrosion, ground fault, or NGR failure, and provides one alarm or trip output contact.
MFR: Littelfuse
MFR #: SE-325
UPC: 079458988079
Item #: 1280879
Available to Order
$6008.93 each
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Littelfuse
Remote indication and reset for the SE-330, SE-330AU, and SE-330HV. NEMA 4 and NEMA 13 rating. Standard 22-mm mounting.
MFR: Littelfuse
MFR #: RK-332
UPC: 079458987836
Item #: 1204732
Available to Order
$1754.50 each
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Littelfuse
The EFCT series is a sensitive nickel-core current transformer used with Littelfuse relays to detect low levels of earth-leakage current.
MFR: Littelfuse
MFR #: EFCT-1
UPC: 079458977684
Item #: 534791
Available to Order
$2728.10 each
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Littelfuse
The SE-330 is an advanced ground-fault and neutral-grounding resistor monitoring relay that is compliant with Rule10-302 of the 2018 Canadian Electrical Code Part I (CE Code). It measures neutral current, neutral-to-ground voltage, and neutral-to-ground resistance. It provides continuous monitoring of the neutral-to-ground path to verify that the neutral-grounding resistor (NGR) is intact and that it has not been bypassed or shorted. An open NGR renders currentsensing ground-fault protection inoperative and could result in a false belief that the system is functioning properly. A shorted NGR results in higher-than-expected ground-fault current. The SE-330 can be used with low- and medium-voltage transformers and generators with low- or high-resistance grounding used in processing, manufacturing, chemical, pulp and paper, petroleum, and water-treatment facilities. For high-voltage applications, use the SE-330HV. For applications that require conformance to Australian standards, use the SE-330AU.
MFR: Littelfuse
MFR #: SE-330-SMA
UPC: 079458988604
Item #: 1204733
Available to Order
$1258.10 each
Availability
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Littelfuse
The EFCT series is a sensitive nickel-core current transformer used with Littelfuse relays to detect low levels of earth-leakage current.
MFR: Littelfuse
MFR #: EFCT-26
UPC: 079458977721
Item #: 866232
Available to Order
$1708.20 each
Availability
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Littelfuse
50-W ground-check termination assembly with convenient mounting holes and wire leads.
MFR: Littelfuse
MFR #: SE-TA6A-WL
UPC: 079458989557
Item #: 656337
Available to Order
$2237.33 each
Availability
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Littelfuse
Used On Systems Up To 15 kV.
MFR: Littelfuse
MFR #: ER-15KV
UPC: 079458977905
Item #: 501382
Available to Order
$9600.28 each
Availability
Location Available Qty
Littelfuse
MOTOR OVERLOAD PROTECTION 8000
MFR: Littelfuse
MFR #: MP8000
UPC: 079458046113
Item #: 719830
Available to Order
$2811.85 each
Availability
Location Available Qty
Littelfuse
CURRENT SENSOR
MFR: Littelfuse
MFR #: ECSL41AD
UPC: 079458992724
Item #: 1238971
Available to Order
$597.93 each
Availability
Location Available Qty
Littelfuse
NGR MON.,UNIV.,SC FIBER & RJ45,61850
MFR: Littelfuse
MFR #: SE-330-07-00
UPC: 079458812848
Item #: 1528349
In Stock -
$24091.68 each
Availability
Location Available Qty
Littelfuse
NGR MON.,UNIV., ETHERNET SC FIBER & RJ45
MFR: Littelfuse
MFR #: SE-330-04-00
UPC: 079458812473
Item #: 1526332
Available to Order
$22417.48 each
Availability
Location Available Qty
Littelfuse
3-PHASE VOLTAGE MONITOR W/ DIS
MFR: Littelfuse
MFR #: 601
UPC: 079458989632
Item #: 1543863
Available to Order
$1557.80 each
Availability
Location Available Qty
Littelfuse
PIN 8-PIN SOCKET
MFR: Littelfuse
MFR #: NDS-8
UPC: 079458997132
Item #: 746926
Available to Order
$29.50 each
Availability
Location Available Qty
Littelfuse
3-PHASE VOLT MON/ 190-480V/AD
MFR: Littelfuse
MFR #: 460-B
UPC: 079458990591
Item #: 1359341
Available to Order
$469.80 each
Availability
Location Available Qty
Littelfuse
SOCKET, 8 PIN OCTAL
MFR: Littelfuse
MFR #: OT08PC
UPC: 079458997422
Item #: 162871
Available to Order
$46.90 each
Availability
Location Available Qty
Littelfuse
2X2 D.O.M. W/RELAY
MFR: Littelfuse
MFR #: KRDM215M
UPC: 079458994773
Item #: 1489833
Available to Order
$265.20 each
Availability
Location Available Qty
Littelfuse
1-PHASE VOLTAGE MONITOR/ 115V/
MFR: Littelfuse
MFR #: 460-100-SP
UPC: 079458990508
Item #: 878271
Available to Order
$479.25 each
Availability
Location Available Qty
Littelfuse
3-PHASE VOLTAGE MONITOR/ 190-4
MFR: Littelfuse
MFR #: 102A3
UPC: 079458990058
Item #: 24880
Available to Order
$736.30 each
Availability
Location Available Qty
Littelfuse
DELAY ON BREAK TIMER
MFR: Littelfuse
MFR #: TSB422
UPC: 079458020434
Item #: 887406
Available to Order
$242.03 each
Availability
Location Available Qty
Littelfuse
3-PHASE VOLT MON/ 190-480V/ AD
MFR: Littelfuse
MFR #: 460
UPC: 079458989625
Item #: 150225
Available to Order
$386.28 each
Availability
Location Available Qty
Littelfuse
UNIVERSAL ADJUSTABLE FLASHER
MFR: Littelfuse
MFR #: FSU1004
UPC: 079458993622
Item #: 1260645
Available to Order
$406.55 each
Availability
Location Available Qty
Littelfuse
SOLID STATE TIMER (D.O.M.)
MFR: Littelfuse
MFR #: MSM42W6
UPC: 079458997095
Item #: 207080
Available to Order
$185.10 each
Availability
Location Available Qty
Littelfuse
TRACK FOR DIN RAIL
MFR: Littelfuse
MFR #: P1023-20
UPC: 079458997644
Item #: 1263271
Available to Order
$38.68 each
Availability
Location Available Qty
Littelfuse
DIN 11-PIN SOCKET
MFR: Littelfuse
MFR #: NDS-11
UPC: 079458997125
Item #: 602774
Available to Order
$51.20 each
Availability
Location Available Qty
Littelfuse
ON-DELAY TIMER/ 460V/ ADJUSTAB
MFR: Littelfuse
MFR #: T10400
UPC: 079458999105
Item #: 1567495
Available to Order
$673.38 each
Availability
Location Available Qty
Littelfuse
RECYCLING TIMER
MFR: Littelfuse
MFR #: HRDR431A1R
UPC: 079458993974
Item #: 983952
Available to Order
$356.03 each
Availability
Location Available Qty
Littelfuse
DIGI-SET (D.O.B.)
MFR: Littelfuse
MFR #: TDBL120ALD
UPC: 079458999556
Item #: 942021
Available to Order
$570.18 each
Availability
Location Available Qty