The ECM2 relay has been discontinued and is no longer available for purchase. A direct replacement alternative, the ECM3 is now available.
The ECM3 has been designed to provide earth continuity protection for cables containing pilot cores. In practical applications, environmental factors often prevent an earth continuity protection system from complying with both requirements of AS/NZS 2081 and AS/NZS 4871.
The Ampcontrol PF1 is a multi-functional Relay designed for hard rock mining applications. It has the ability to perform two standard protection functions which are compliant to AS/NZS2081:2011 for Earth Leakage and Earth Continuity. In addition to these protection functions, the PF1 also provides selectable control functionality for Pump or Fan motor installations.
The PF1 is intended for use in the hard rock mining industry on electrical outlets supplying Pump or Fan motors. The PF1’s Pump and Fan operating modes can both be disabled,
allowing the PF1 to also operate as a combined Earth Leakage and Earth Continuity relay on non-pump and non-fan outlets.
The Ampcontrol Series Earth Continuity Resistor Bank is designed to reduce step and touch potentials within an electrical distribution network. The Series Earth Continuity Resistor Bank introduces resistance to the pilot circuit, reducing the required trip value of an Earth Continuity relay.
The ROC Earth Continuity Relay has been designed to AS2081.2 1988 to monitor the earth continuity of a trailing or reeling cable in an underground mining operation on a fault-limited system. The relay has been approved to be intrinsically safe and is suitable for use in a Zone 0 hazardous area.
The ROB Earth Continuity Relay has been designed to AS 2081.2 1988, to monitor the earth continuity of a trailing cable in an underground mining operation. The relay has been approved to be intrinsically safe and is suitable for use in Zone 1 or 2 hazardous areas.
The MEC-1, earth continuity relay, is an electrical protection relay designed for operation in metalliferous mining applications. It provides earth continuity protection in accordance with AS/NZS 2081:2011 ensuring the integrity of the earth connection through a trailing or reeling cable is maintained. Earth Continuity protection is another layer of protection that, along with earth leakage protection, can help keep step and touch voltage potentials at a safe level by ensuring the earth resistance is below a determined safe level.
The MEC-1 is a cost effective earth continuity relay solution, designed for the metalliferous market. The relay continually monitors the integrity of the earth connection in a mining trailing
or reeling cable, and is normally installed in a substation or distribution box.
ECM2 – Earth Continuity Relay provides earth continuity protection using pilot earth loop or earth continuity monitoring.