LITTELFUSE

SE-330HV-28-01 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; IEC61850 (Dual SC Fiber).

Ground-Fault-Relay Test Unit Provides programmable current to test ground-fault relays. LED display.

Selector Switch

Port-Powered Serial Converter Converts a TIA-485 signal from an MPS, MPU-32, or FPU-32 to a TIA-232 signal for a computer or PLC.

The SE-502 Ground-Fault Ground-Continuity Detector provides Class-A GFCI trip level and trip times for personnel protection. As little as 5 mA of ground-fault current can be detected, and the internal neutral-grounding resistor limits the maximum ground-fault current to 100 mA. The SE-502 can be used on both energized and de-energized systems, and will continuously monitor neutral continuity, detect a load-side grounded neutral, and is capable of ground proving. These features make the SE-502 ideal for use with 120/208 V portable generators and in heat-trace applications.

SE-601-0D is a sensitive ground-fault monitor with a supply voltage dc of 12–30.

SE-601-0D-CC is a sensitive ground-fault monitor with an analog output current mA of 0–5 V and offers conformal coating.

SE-601-0T is a sensitive ground-fault monitor with a supply voltage dc of 40–55.