MCR-EE-EX-NAM-2RO
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Isolation switch amplifier
1552737
Ex i-NAMUR isolation switch amplifier for operating proximity sensors and switches in potentially explosive areas. The signals are transmitted to the safe area via 2 relay outputs (N/O contact). number of channels: 1, 3-way isolation, Safety Integrity Level (SIL, IEC 61508): 2, Systematic Capability: 2, Screw connection
Product details
| Product type | Isolating switch amplifier |
| Product family | ESSENTIAL edition |
| Application | Digital IN |
| No. of channels | 1 |
| Electrical isolation | 3-way isolation |
| Electrical isolation between input and output | yes |
| Electrical isolation Input/output IEC/EN 60079-11 | |
| Standards/regulations | IEC/EN 60079-11 |
| Rated insulation voltage | 265 Vrms |
| Overvoltage category | III |
| Pollution degree | 2 |
| Electrical isolation Input/supply, DIN rail connector IEC/EN 60079-11 | |
| Standards/regulations | IEC/EN 60079-11 |
| Rated insulation voltage | 265 Vrms |
| Overvoltage category | II |
| Pollution degree | 2 |
| Electrical isolation Input/supply, DIN rail connector IEC/EN 61010-1 | |
| Standards/regulations | IEC/EN 61010-1 |
| Rated insulation voltage | 300 Vrms |
| Overvoltage category | II |
| Pollution degree | 2 |
| Insulation | Safe isolation |
| Electrical isolation Output 1/output 2/input, power supply, DIN rail connector IEC/EN 61010-1 | |
| Standards/regulations | IEC/EN 61010-1 |
| Rated insulation voltage | 300 Vrms |
| Overvoltage category | III |
| Pollution degree | 2 |
| Insulation | Safe isolation |
| Electrical isolation Output 1/output 2/input/power supply, DIN rail connector | |
| Test voltage | 2.5 kV AC (50 Hz, 60 s) |
| Overvoltage category | III |
| Pollution degree | 2 |
| Supply | |
| Nominal supply voltage | 24 V DC -20 % ... +25 % |
| Supply voltage range | 19.2 V DC ... 30 V DC |
| Max. current consumption | 30 mA (24 V DC) |
| Power dissipation | < 1 W |
| Power consumption | < 1 W |
| Signal: NAMUR | |
| Description of the input | intrinsically safe |
| Number of inputs | 1 |
| Available input sources | NAMUR proximity sensors (IEC/EN 60947-5-6) |
| Switch contacts with resistance circuit | |
| Switching threshold "0" signal current | < 1.2 mA (blocking) |
| Switching threshold "1" signal, current | > 2.1 mA (conductive) |
| Short-circuit current | 8 mA |
| Switching hysteresis | < 0.2 mA |
| Open-circuit voltage | 8 V DC |
| Switching: Relay | |
| Contact switching type | 2 N/O contacts |
| Contact material | AgSnO2, hard gold-plated |
| Maximum switching voltage | 250 V AC (2 A) |
| 120 V DC (0.2 A) | |
| 30 V DC (2 A) | |
| Maximum switching power | 500 VA |
| Recommended minimum load | 5 V / 10 mA |
| Switching frequency | ≤ 20 Hz (without load) |
| Signal | |
| Number of outputs | 2 |
| Connection method | Screw connection |
| Stripping length | 7 mm |
| Screw thread | M3 |
| Conductor cross-section rigid | 0.2 mm² ... 2.5 mm² |
| Conductor cross-section flexible | 0.2 mm² ... 2.5 mm² |
| Conductor cross-section AWG | 24 ... 14 |
| Tightening torque | 0.5 Nm ... 0.6 Nm |
| Test socket | |
| Max. diameter | 2 mm |
| Ex installation (EPL) | Gc |
| Div. 2 | |
| Ex i circuits (EPL) | [Ga] |
| [Da] | |
| [Ma] | |
| [Div. 1] | |
| Safety data | |
| Max. internal inductance Li | negligible |
| Max. internal capacitance Ci | 11 nF |
| Max. output voltage Uo | 9.6 V |
| Max. output current Io | 10 mA |
| Max. output power Po | 25 mW |
| Safety-related maximum voltage Um | 253 V AC (≤ 2000 m) |
| 125 V DC (≤ 2000 m) | |
| IIA/I (simple circuit): Max. external inductivity Lo / Max. external capacitance Co | 1000 mH / 210 µF |
| IIB/IIIC (simple circuit): Max. external inductivity Lo / Max. external capacitance Co | 1000 mH / 26 µF |
| IIC (simple circuit): Max. external inductivity Lo / Max. external capacitance Co | 300 mH / 3.6 µF |
| IIC (mixed circuit): Max. external inductivity Lo / Max. external capacitance Co | 100 mH / 500 nF, 50 mH / 570 nF, 5 mH / 590 nF, 1 mH / 590 nF, 10 µH / 590 nF |
| I/IIB/IIA/IIIC (mixed circuit): Max. external inductivity Lo / Max. external capacitance Co | 100 mH / 1 µF, 5 mH / 1 µF, 1 mH / 1 µF, 10 µH / 1 µF |
| Status display | Green LED (supply voltage) |
| Dimensional drawing |
|
| Width | 12.5 mm |
| Height | 112.5 mm |
| Depth | 113.7 mm |
| Depth NS 35/7,5 | 114.5 mm (Snapped onto DIN rail NS 35/7,5 in accordance with EN 60715) |
| Flammability rating according to UL 94 (Housing) | V0 (Housing) |
| Housing material | PA 6.6-FR |
| Ambient conditions | |
| Degree of protection | IP20 |
| Ambient temperature (operation) | -40 °C ... 60 °C (Any mounting position) |
| -40 °C ... 70 °C (Derating) | |
| Ambient temperature (storage/transport) | -40 °C ... 85 °C |
| Permissible humidity (operation) | 10 % ... 95 % (non-condensing) |
| Permissible humidity (storage/transport) | 5 % ... 95 % (non-condensing) |
| Altitude range (≤ 2000 m) | |
| Altitude | ≤ 2000 m (The technical data refers to altitudes ≤2000 m above mean sea level. For altitudes >2000 m above mean sea level, refer to the data sheet.) |
| Ambient temperature (operation) | -40 °C ... 60 °C |
| -40 °C ... 70 °C (Derating) | |
| Rated insulation voltage | 253 V AC (Power supply, input / output) |
| 125 V DC (Power supply, input / output) | |
| Altitude range (≤ 3000 m) | |
| Height range | > 2000 m ... 3000 m |
| Ambient temperature (operation) | -40 °C ... 54 °C |
| -40 °C ... 63 °C (Derating) | |
| Rated insulation voltage | 190 V AC (Power supply, input / output) |
| 110 V DC (Power supply, input / output) | |
| Altitude range (≤ 4000 m) | |
| Height range | > 3000 m ... 4000 m |
| Ambient temperature (operation) | -40 °C ... 48 °C |
| -40 °C ... 56 °C (Derating) | |
| Rated insulation voltage | 60 V AC/DC (Power supply, input / output) |
| Altitude range (≤ 5000 m) | |
| Height range | > 4000 m ... 5000 m |
| Ambient temperature (operation) | -40 °C ... 42 °C |
| -40 °C ... 49 °C (Derating) | |
| Rated insulation voltage | 60 V AC/DC (Power supply, input / output) |
| CE | |
| Certificate | CE-compliant |
| Note | and EN 61326 |
| ATEX | |
| Identification | II (1) G [Ex ia Ga] IIC |
| II (1) D [Ex ia Da] IIIC | |
| II 3(1) G Ex ec nC [ia Ga] IIC T4 Gc | |
| I (M1) [Ex ia Ma] I | |
| Certificate | ICQC 24 ATEX 507 X |
| IECEx | |
| Identification | [Ex ia Ga] IIC |
| [Ex ia Da] IIIC | |
| Ex ec nC [ia Ga] IIC T4 Gc | |
| [Ex ia Ma] I | |
| Certificate | IECEx KLCS 24.0017X |
| Safety Integrity Level (SIL, IEC 61508) | |
| Identification | 2 |
| Systematic Capability | |
| Identification | 2 |
| Electromagnetic compatibility | Conformance with EMC directive |
| Noise immunity | IEC 61326-1 |
| Note | industrial environment |
| Electrical isolation | 3-way isolation |
| Mounting type | DIN rail mounting |
