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Description
Overview
Essential details：CM-MPS.72S 1SVR430884R3300 CM-MPS Three-phase monitoring relay
CM-MPS.x1 is a multi-function monitoring relay for three-phase power supply. They monitor phase sequence of phase parameters, phase faults, overvoltage and undervoltage, and phase imbalances. The CM-MPS.11 and CM-MPS.21 also allow for incomplete neutral monitoring. The thresholds for overpressure and underpressure as well as phase imbalance can be adjusted. CM-MPS.11 and CM-MPS.21 are also suitable for monitoring single-phase power supplies. To do this, these three external wires (L1, L2, L3) must be jumped and connected as a single wire. Phase sequence monitoring must be disabled and the threshold for phase imbalance must be set to the maximum (25%).
Monitor three-phase power supplies for phase sequence (turn-off), phase faults, overvoltage and undervoltage, and phase imbalances
Incomplete neutral monitoring is available through CM-MPS.11 and CM-MPS.21
CM-MPS.11 and CM-MPS.21 can also be used to monitor single-phase power supplies
The thresholds for phase imbalance, overvoltage, and undervoltage can be adjusted as absolute values
The disconnect delay can be adjusted or turned off on a logarithmic scale
You can choose either on delay or off delay
Powered by a measuring circuit
Principle of true RMS measurement
2 c/o (single pole double throw) contacts
3 leds for status indication
CM-MPS.72S 1SVR430884R3300
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CM-MPS.72S 1SVR430884R3300 CM-MPS Three-phase monitoring relay
The 3500 System rack design holds all 3500 monitor modules and rack power supplies. It allows the various 3500 modules to communicate with one another and the power supplies to distribute power to each module as required.
3500 Racks are available in two sizes:
1. Full-size Rack – 19-inch EIA rack with 14 available module slots
2. Mini-Rack – 12-inch rack with 7 available module slots 3500 racks are available in three formats:
1. Panel mount – This rack format mounts to rectangular cut-outs in panels, and secures to the panel using clamps supplied with the rack. Wiring connections and I/O modules are accessible from the rear of the rack.
2. Rack mount – This rack format mounts the 3500 rack on 19-inch EIA rails. Wiring connections and I/O modules are accessible from the rear of the rack.
3. Bulkhead mount – This rack format mounts the rack against a wall or panel when it is not possible to access the rear of the rack. Wiring connections and I/O modules are accessible from the front of the rack.
The 3500/05 Mini-Rack is not available in this format.
The Power Supplies and Rack Interface Module must occupy the far left rack positions. The remaining 14 rack positions (7 rack positions for the Mini-Rack) are available for any combination of modules. If you plan to install internal barriers in the 3500 rack, consult our document part number 141495-01, Specifications and Ordering Information for 3500 Internal Barriers.
