ECM3

Details

Ampcontrol’s ECM3 Relay 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. Affecting factors can include coupled noise onto the pilot of the cable, variation in the resistance of the pilot cable due to temperature, and the overall length of the cable. The introduction of the dynamic trip response characteristic allows an electrical protection system incorporating an ECM3 to maintain a much lower touch voltage und er earth fault conditions without any degradation of reliability or the introduction of nuisance tripping.

Ampcontrol has developed the ECM3 - EC protection relay, which is designed with AS/NZS 2081 (2011) and AS/NZS 4871.1 (2012) in mind, to achieve super ior touch potential compliance and noise immunity of a n EC protected system than any current generation EC relay.

Application:

Mining & Industrial Power Systems
Trailing and Reeling Cables, Draglines & Shovels, Pumps, Stockpile Machines etc.

Specification:

Mounting: DIN rail
Size: 75H x 22.5W x 98.5D (mm)
Protection: IP20
Input Volts: 20-50Vac, 19-70Vdc
Power Consumption: 2W
Operating Temperature: -20-45degC
Tripping Series Resistance: 15...90ohms
Tripping Shunt Resistance: 1kohm or lower
Tripping Time: 300msec..3Sec
Tripping Relay Output:1 C/O Rated 2A @ 240Vac or 30Vdc (100VAmax)
Indication Relay Output:1 N/O or N/C Rated 1A @ 240Vac or 30Vdc (100VAmax)
LED Indication: Tri-coloured LED displays Healthy, Open, Short
External Connections: External Reset, External LED

Compliance:

AS/NZS 2081 and AS/NZS 4871

Notes:

Requires Termination Module P/N: 176969
Optional Power Supply P/N:141479