GF4146 Datasheet PDF | Unisonic Technologies

Unisonic Technologies GF4146

GF4146 is a two-wire low-power controller for Residual Current Devices (RCD) and AC outlet Appliance Leakage Circuit Interrupters (ALCI) . The UTC GF4146 detects hazardous grounding conditions and open circuits the line before a harmful shock occurs. With the addition of a minimum number of external components, the UTC GF4146 detects and protects against a hot-wire-to-ground fault.

Part No.	GF4146
Datasheet	GF4146 Download
Manufacturer	Unisonic Technologies
Description	GROUND FAULT INTERRUPTER
Buy	Stock & Price

DESCRIPTION

The UTC Internally, the UTC GF4146 contains a diode rectifier, 12V shunt regulator using a precision temperature-compensated bandgap reference, precision low VOS offset-sense amplifier, time delay noise filter, window-detection comparators, and a SCR driver. The UTC GF4146 circuitry has a built-in rectifier and shunt regulator that operates with a low quiescent current. This allows for a high-value, low-wattage-series supply resistor. The internal temperature compensated shunt regulator, sense amplifier, and bias circuitry provide for precision ground-fault detection. The low VOS offset-sense amplifier allows direct coupling of the sense coil to the amplifier’s feedback signal. This eliminates the large 50/60Hz AC-coupling capacitor. The internal delay filter rejects high-frequency noise spikes common with inductive loads. This decreases false nuisance tripping. The internal SCR driver is temperature compensated and designed to satisfy the current requirements for a wide selection of external SCRs.