MTL2220 EARTH LEAKAGE DETECTOR. Brand new hot sale in stock with 1 year warranty 100% New&Original
The MTL2220 continuously monitors floating electrical circuits in a hazardous area, and warns if their resistance to earth falls below
10kΩ. It enables other MTL2000 and 3000 Series units to be used in the ‘no-fail’ mode, whereby earth faults on field lines can be
detected and rectified without upsetting control or needing emergency action. The measuring circuit of the unit uses a 1Hz oscillator, amplifier and phase-sensitive demodulator to reject electrical interference up to 250V. A self-test facility enables the unit to be checked automatically or manually from time to time to ensure the integrity of the whole system. Testing is carried out by connecting two safe-area terminals together; this triggers an IS opto-coupler to connect a known resistance across the input terminals, de-energising the relay and LED if the unit is healthy, but having no effect on the monitored circuits. The changeover output contacts are duplicated within the unit for reliability.
MTL2000 series
Product CodeDescription
MTL2210B Switch operated relay ~ 1-channel
MTL2211 Switch operated relay ~ 2-channel
MTL2213 Switch/proximity detector relay ~ 3-channel
MTL2215 Switch operated relay ~ IS output
MTL2220 Earth-leakage detector
MTL2241 Solenoid/alarm driver ~ 1-channel
MTL2242 Solenoid/alarm driver ~ 4-channel
MTL2313 Trip amplifier ~ general purpose
MTL2314 THC trip amplifier
MTL2315 RTD trip amplifier
MTL2316 Bonding integrity monitor
MTL2441B 4/20mA Repeater power supply
MTL2442B 4/20mA Isolating driver
