Electronic machine management for operation with external current transformers (90 A) – Precise energy measurement, real power measurement, current and voltage measurement of motors, machines or other 3-phase loads. Freely parameterizable switching and signaling thresholds. As an option, can be networked with all common fieldbus systems via a gateway.
EMM 3-24DC/500AC-90-EXM-IFS
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Motor management
2908602
Electronic machine management for operation with an external current transformer (90 A) - precise energy measurement and active power measurement of motors, machines, and other 3-phase loads. Freely configurable switching/signaling thresholds. Order cables separately.
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Mandatory accessories
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Product details
| Product family | CONTACTRON |
| Operating mode | 100% operating factor |
| Number of phases | 3 |
| Maximum power dissipation for nominal condition | 2.5 W |
| Supply | |
| Rated control circuit supply voltage US | 24 V DC |
| Control supply voltage range | 19.2 V DC ... 30 V DC |
| Rated control supply current IS | < 33 mA |
| Insulation characteristics | |
| Rated insulation voltage | 500 V |
| Rated surge voltage | 6 kV |
| Overvoltage category | III |
| Degree of pollution | 2 |
| Digital inputs | |
| Number of inputs | 4 (IN1 - IN4) |
| Rated actuating voltage UC | 24 V DC |
| Triggering voltage range | 19.2 V DC ... 30 V DC |
| Rated actuating current IC | 3.3 mA |
| Switching threshold | 9.6 V (“0” signal) |
| 19.2 V (“1” signal) | |
| Supply for digital outputs | |
| Nominal supply voltage | 24 V DC |
| Nominal supply voltage range | 19.2 V DC ... 30 V DC |
| Power measurement | |
| Basic accuracy | typ. 0.25 % (Tu= 20 °C, U= 400 V, Cos Phi= 0,8) |
| Power range | 138 W ... 62 kW (400 V AC) |
| Voltage measurement/star voltage | |
| Basic accuracy | typ. 0.5 % |
| Voltage range | 42 V AC ... 550 V AC |
| Current measurement | |
| Basic accuracy | typ. 0.5 % |
| Current range | 0.2 A ... 90 A |
| Measuring via | External push-through current transformers connected upstream |
| Output name | Acknowledging contacts O1-O4 |
| Note | The meaning of the acknowledgement outputs can be freely parameterized, see user manual |
| Number of outputs | 4 |
| Nominal output voltage | 24 V DC (semiconductor output) |
| Output voltage range | 19.2 V DC ... 30 V DC |
| Continuous load current | 500 mA |
| Residual voltage | < 100 mV |
| Protective circuit | Suppressor diode |
| Surge voltage protection | > 33 V DC |
| Control circuits | |
| Connection method | Screw connection |
| Stripping length | 8 mm |
| Screw thread | M3 |
| Conductor cross-section rigid | 0.14 mm² ... 2.5 mm² |
| Conductor cross-section flexible | 0.14 mm² ... 2.5 mm² |
| Conductor cross-section AWG | 26 ... 12 |
| Tightening torque | 0.5 Nm ... 0.6 Nm (5-7 lbs-in) |
| Load circuit | |
| Connection method | Screw connection |
| Stripping length | 8 mm |
| Screw thread | M3 |
| Conductor cross-section rigid | 0.14 mm² ... 2.5 mm² |
| Conductor cross-section flexible | 0.14 mm² ... 2.5 mm² |
| Conductor cross-section AWG | 26 ... 12 |
| Tightening torque | 0.5 Nm ... 0.6 Nm (5-7 lbs-in) |
| Signal connection on electronic management module (EMM) | |
| Connection method | D-SUB pin strip |
| Number of connections | 1 |
| Number of positions | 9 |
| Signal connection on current transformer module | |
| Connection method | D-SUB socket strip |
| Number of connections | 1 |
| Number of positions | 9 |
| Status display | LED (yellow) |
| Operating voltage display | Green LED |
| Error indication | Red LED |
| Data communication display | green LED |
| Width | 22.5 mm |
| Width Current transformer | 138 mm |
| Height | 99 mm |
| Height Current transformer | 45 mm |
| Depth | 114.5 mm |
| Depth Current transformer | 56 mm |
| Diameter | 11 mm |
| Current transformer | |
| Designation | Ext 90 CT |
| Width | 138 mm |
| Height | 45 mm |
| Depth | 56 mm |
| Primary round conductor (diameter) | 11 mm |
| Color | gray (RAL 7042) |
| Ambient conditions | |
| Degree of protection | IP20 |
| Ambient temperature (operation) | -25 °C ... 50 °C |
| Ambient temperature (storage/transport) | -40 °C ... 80 °C |
| UKCA | |
| Certificate | UKCA-compliant |
| Standards/regulations | |
| Standards/regulations | EN 60947-1 |
| EN 60947-4-2 | |
| EN 61000-6-2 | |
| EN 61000-6-3 | |
| Mounting type | DIN rail mounting |
| Assembly note | in rows with zero spacing |
| Mounting position | any |
| Item number | 2908602 |
| Packing unit | 1 pc |
| Minimum order quantity | 1 pc |
| Sales key | C475 |
| Product key | DK7521 |
| GTIN | 4055626311777 |
| Weight per piece (including packing) | 384 g |
| Weight per piece (excluding packing) | 225.2 g |
| Customs tariff number | 85371098 |
| Country of origin | DE |
ECLASS
| ECLASS-13.0 | 27370804 |
ETIM
| ETIM 9.0 | EC002572 |
UNSPSC
| UNSPSC 21.0 | 39121100 |
| EU RoHS | |
| Fulfills EU RoHS substance requirements | Yes |
| Exemption | 6(c), 7(a), 7(c)-I |
| China RoHS | |
| Environment friendly use period (EFUP) |
EFUP-50
An article-related China RoHS declaration table can be found in the download area for the respective article under "Manufacturer declaration". For all articles with EFUP-E, no China RoHS declaration table issued and required.
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| EU REACH SVHC | |
| REACH candidate substance (CAS No.) | Lead (CAS: 7439-92-1) |
| SCIP | 962b7d63-a983-4b4b-a7c1-711b98e853e4 |
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