Overcurrent & Short Circuit Relay230V5A. The T2500 is a high quality Over-Current and Short-Circuit relay intended for protection against thermal damage and faults caused by excessive currents. The T2500 can be used to protect generators, power transmission lines and various types of consumer supplies. The T2500 monitors two levels of current and trips the circuit breaker when one of these two levels has been exceeded continuously for a time period (defined by an adjustable delay). The T2500 will support the connection of up to three phases, but will react on the largest of these three measurements. The current measurements are done through external current transformers (CTs) – typically with a secondary current of 5A. The Over-Current function can be adjusted to trip within the range of 0.5 to 1.4 x I (input current). The delay of the Over-Current function can be set between 3 to 30 seconds. The Short-Circuit function operates within the range of 1.0 to 4.0 x I. The Short-Circuit delay can be set between 0.1 and 1 second. The T2500 will react on the highest of the three input currents. The Pick-up LED will ignite as soon as the level is exceeded, while the relay is activated only after the delay has passed.

ENC PANEL ADAPTOR MPU-16A/LODTRAK FLAT. Used when replacing the GE Lodtrak II.

Used to panel mount the relay; IP 53 and NEMA 3 rating, tamper resistant.

SE-330AU-23-01 is an advanced neutral-earthing resistor monitor with a supply voltage ac of 28–52 and a supply voltage dc of 36–72. Network communications is offered via USB; Ethernet (Dual RJ45).

Relay Sockets & Fixings NGR MON TEST RESISTOR 200 KOHM

NGR MONITOR HV PROFIBUS. 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.

SE-330AU-01-00 is an advanced neutral-earthing resistor monitor with a supply voltage ac of 65–265 and a supply voltage dc of 85–275. Network communications is offered via USB; DeviceNet.

SE-330HV-21-01 is an advanced ground-fault and neutral-grounding resistor monitor with a supply voltage ac of 28–52 and a supply voltage dc of 36–72. This monitor is used for high-voltage applications. Network communications is offered via USB; DeviceNet.

Relay Sockets & Fixings NGR MON TEST RESISTOR 20 KOHM

ENC PANEL ADAPTOR MPU-16A/L1 CUTOUT FLAT. Used when replacing relays in the GE S1 Case.

The SE-410 is a selector switch for use with a SE-400 or SE-100T Ground-Fault-Relay Test Unit. It allows up to ten ground-fault circuits to be individually tested with one ground-faultrelay test unit.

SE-330HV-23-01 is an advanced ground-fault and neutral-grounding resistor monitor with a supply voltage ac of 28–52 and a supply voltage dc of 36–72. This monitor is used for high-voltage applications. Network communications is offered via USB; Ethernet (Dual RJ45).