Showing 229-240 of 9,819 results

PGR-4300-120 is a generator ground-fault relay with a supply voltage ac of 120.
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Panel-mounted analog am meter displays the Ground-Fault Current as a percentage of the set-point.
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FAST-ACTING 5X20 GLASS BODY H-PACK .400A. 5x20mm fast-acting ceramic body cartridge fuse designed to IEC specification. Features: Designed to International (IEC ) Standards for use globally. Meets the IEC 60127-2, sheet 1 specification for fast-acting fuses. Available in cartridge and axial lead form RoHS compliant and lead-free.
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Minimum Qty: 100
Multiplier: 100
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3PH15P18MM is a compact-sized POWR Busbar system that provides safe distribution of electrical power to multiple dead front fuse holders and measures 266 mm in length, which can be cut down to an optimal size. See datasheet for more detailed specifications.
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Littelfuse · SE 330 Series
SE-330-02-11
NGR MONITOR PROFIBUS CE NC-K4. The SE-330 is an advanced ground-fault and neutral-grounding resistor monitoring relay. 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. This is of utmost importance—an open NGR renders current-sensing ground-fault protection inoperative and could result in a false belief that the system is functioning properly. 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 standard AS/NZS 2081.3:2002, see the SE-330AU. The SE-330 New Revision provides these additional features: 100 trip records with date and time stamp. A mini-USB interface to view measured values, configure settings and check event records using SE-MON330 v3.2 or later. An on-board microSD card (included) can be used for long term data logging and firmware upgrades. Ground-fault trip level is adjustable from 2 to 100percent in 10 discrete settings, and in 1percent increments when using the MEM setting and SE-MON330 v3.2 or later. Dual Ethernet ports are optionally available with support for fiber and RJ45 interfaces. IEC 61850 protocol is optionally available. COMPUTER TO RELAY CONNECTION: Connect the SE-330 to the network using astandard Ethernet patch cable. Use of a crossover cable to connect the SE-330 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 SE-330 does not support the use of DHCP. If the SE-330 is being set-up for first time, it is recommended to only have one SE-330 connected to the network to prevent communication errors.
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SE-330HV-00-00 is an advanced ground-fault and neutral-grounding resistor monitor with a supply voltage ac of 65–265 and a supply voltage dc of 85–275. This monitor is used for high-voltage applications. Network communications is offered via USB.
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SE-325ESN is a neutral-grounding resistor monitor with a supply voltage of 240 ac and a ground-fault trip level of 0.5–4.0 A.
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SE-325ESNT is a neutral-grounding resistor monitor with a supply voltage of 240 ac and a ground-fault trip level of 0.5–4.0 A.
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ER-15KV is a sensing resistor accessory used on systems up to 15 kV (non-continuous duty). It is an accessory for SE-330, SE-325, and SE-330AU.
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Littelfuse · E7800 Series
E7800.0650
Motorized Potentiometer 24VDC, 0.8-6 rpm. The E7800 Motorized Potentiometer is typically used as an interface between increase/decrease relay contacts (or push buttons) and a device requiring control by an external potentiometer (e.g. the speed trim of an electronic governor). All three wires of the potentiometer are directly accessible on external connection terminals, thus providing the best possible flexibility for almost any application. A special version of the E7800 with DC voltage output is also available. The DC output voltage follows the position of the potentiometer. The design of the E7800 ensures that the potentiometer will “remember” its position although supply is lost
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The SE-CS10 series current transformers (CTs) are key components of the Littelfuse protection relay product line. Littelfuse SE-134C and SE-135 Ground-Fault Ground-Check Monitors are designed specifically for use with the SE-CS10 CTs. A Littelfuse SE-330 Neutral-Grounding-Resistor Monitor and a Littelfuse SE-701 Ground-Fault Monitor can also be equipped with the SE-CS10 series to achieve the desired ground-fault-trip settings. Littelfuse motor- and feeder-protection relays can also make use of the SE-CS10 series either to measure phase current or ground-fault current.
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