Operating current and RCM measuring device UMG 20CM (Channel Meter) for DIN rail mounting Supply voltage 95V..240V (45-65Hz), 135V..340V DC, 4 voltage measuring inputs (LN: 10V-277Vrms, LL: 18V- 480Vrms, resolution 1V, 45Hz-65Hz), 20 current measuring inputs single-phase or three-phase, for measuring operating currents and RCM measurement Operating current (0-1 A, response current: 100 mA) 0 .. 600 A Connection via optional current transformers CT-6-20 700/1, CT20 700/1 and divisible current transformers STC20 3000/1 and differential current 1 .. 1000 mA (with load 16 A), Resolution 1 mA Connection via optional residual current transformers CT-6-20 700/1 and CT 20 700/1Measurement in 1-phase / multi-phase networks 1 ph, 2 ph, 3 ph, 4 ph and 20 x 1 phNetworks: TN, TT, and ITMeasurement in single-phase 3-wire systems up to max. 220V-440VMeasurement in single-phase 2-wire systems up to max. 220VVoltage measurement, measurement category 300V CATIII2 digital outputsAcknowledgement function on the device Polarity reversal for current transformers 50Hz filter function for residual currents Data storage: 768 KB Flash (31 days for 15min currents, active power, active energy and voltage) Interface: RS485Protocol: Modbus Accessories:3303310 Operating instructions
| Features | Value |
| Rated voltage: | 10 to 480 V |
| Type of voltage for actuation: | AC |
| Max. permissible response delay time: | 650 s |
| Design of the electrical connection: | Plug connection |
| Min. adjustable response delay time: | 0.01 s |
| Response value current 1: | 1 to 630000 mA |
| Rated frequency: | 45 to 65 Hz |
| Response value current 2: | 10 to 1000 mA |
| Width: | 105 mm |
| Height: | 90 mm |
| Depth: | 73 mm |
| With removable Terminals: | yes |
| Function: | for mixed networks |
| Display of the residual current: | yes |
| Fault storage possible: | yes |
| Rated control supply voltage Us at AC 50 Hz: | 90 to 276 V |
| Rated control supply voltage Us at AC 60 Hz: | 90 to 276 V |
| Rated control supply voltage Us at DC: | 90 to 276 V |
