Schneider Zelio vs ABB CM: Monitoring Relay Comparison
A function-by-function comparison of Schneider Zelio Control and ABB CM monitoring relays covering three-phase supply, voltage, current, level, temperature, module width, and measurement method.
The Siemens 3RS7020-1ET00 is a relay from the SENTRON/SIRIUS 3RS7 series. Separation amplifier Loop power isolator, 1-channel input: 4-20 mA output: 4-20 mA Width 6.2 mm screw terminal. Supplied by Stoklink for industrial and commercial low-voltage applications.
The Siemens 3RS7020-1ET00 is used in industrial control panels, distribution boards and automation systems. As part of the Siemens 3RS7 range it integrates with compatible SENTRON/SIRIUS components for a coordinated low-voltage installation. Genuine Siemens product supplied by Stoklink with fast dispatch from Türkiye.
| product brand name | SIRIUS |
|---|---|
| product category | Signal converter |
| product designation | Single-range converters |
| design of the product | passive |
| product type designation | 3RS70 |
| display version LED | No |
|---|---|
| number of channels | 1 |
| insulation voltage for overvoltage category III according to IEC 60664 with degree of pollution 3 rated value | 50 V |
| voltage drop at operating equipment | 4.1 V |
| surge voltage resistance rated value | 1 500 V |
| shock resistance according to IEC 60068-2-27 | sinusoidal half-wave 15 g / 11 ms |
| vibration resistance according to IEC 60068-2-6 | 6 ... 150 Hz: 2 g |
| reference code according to IEC 81346-2 | T |
| Substance Prohibitance (day/month/year) | 03/25/2015 |
| relative metering precision | 0.1 % |
|---|---|
| temperature drift per °C | 0.015 %/°C |
| voltage ripple maximum | 5 mV |
| settling time for 1 % deviation | 6 ms |
| Part number | 3RS7020-1ET00 |
|---|---|
| Type designation | 3RS70 |
| Brand | Siemens |
| Condition | New, factory sealed |
| Source | Siemens and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| EAN | 4047621001166 |
| ETIM class | EC002653 |
| eCl@ss | 27210120 |
| input voltage maximum | 30 V |
|---|---|
| property of the output short-circuit proof | No |
| type of signal at input | 4 ... 20 mA |
| type of signal at output | 4 ... 20 mA |
| input impedance of current input maximum | 100 Ω |
| output load: at the current output maximum | 1 000 Ω |
| influence of the output load on measuring accuracy | 0.06 %/100 Ω |
| EMC emitted interference according to IEC 60947-1 | Environment B |
|---|---|
| EMC immunity according to IEC 60947-1 | corresponds to degree of severity 3 |
| conducted interference: due to burst according to IEC 61000-4-4 | 1 kV 5/50 ns |
| conducted interference: due to conductor-conductor surge according to IEC 61000-4-5 | 1 kV |
| field-based interference according to IEC 61000-4-3 | 10 V/m |
| electrostatic discharge according to IEC 61000-4-2 | 6 kV contact discharge / 8 kV air discharge |
| design of the electrical isolation | 2 paths |
|---|---|
| galvanic isolation: between input and output | Yes |
| galvanic isolation: between the outputs | No |
| galvanic isolation: between the inputs | No |
| galvanic isolation: between the voltage supply and other circuits | No |
| type of electrical connection | screw terminal |
|---|---|
| type of connectable conductor cross-sections: solid | 1x (0.25 ... 2.5 mm2) |
| type of connectable conductor cross-sections: finely stranded with core end processing | 1x (0.25 ... 1.5 mm2) |
| type of connectable conductor cross-sections: for AWG cables solid | 1x (20 ... 14) |
| connectable conductor cross-section: solid | 0.25 ... 2.5 mm2 |
| connectable conductor cross-section: finely stranded with core end processing | 0.25 ... 1.5 mm2 |
| AWG number as coded connectable conductor cross section: solid | 20 ... 14 |
| tightening torque with screw-type terminals | 0.5 ... 0.6 N·m |
| mounting position | any |
|---|---|
| fastening method | snap-on mounting |
| height | 93 mm |
| width | 6.2 mm |
| depth | 71 mm |
| with side-by-side mounting: forwards | 0 mm |
| with side-by-side mounting: backwards | 0 mm |
| with side-by-side mounting: upwards | 0 mm |
| with side-by-side mounting: downwards | 0 mm |
| with side-by-side mounting: at the side | 0 mm |
| for grounded parts: forwards | 0 mm |
| for grounded parts: backwards | 0 mm |
| for grounded parts: upwards | 0 mm |
| for grounded parts: at the side | 0 mm |
| for grounded parts: downwards | 0 mm |
| for live parts: forwards | 0 mm |
| for live parts: backwards | 0 mm |
| for live parts: upwards | 0 mm |
| for live parts: downwards | 0 mm |
| for live parts: at the side | 0 mm |
| installation altitude at height above sea level maximum | 2 000 m |
|---|---|
| ambient temperature: during operation | -25 ... +60 °C |
| ambient temperature: during storage | -40 ... +80 °C |
| ambient temperature: during transport | -40 ... +80 °C |
| relative humidity during operation | 10 ... 95 % |
| Net weight | 0.045 kg |
|---|---|
| Package dimensions | 95 × 80 × 20 mm |
| Country of origin | DE |
| Shipping weight | 0.545 kg |
| Ships from | Türkiye |
| Dispatch | — |
| Stock | On request |
Source: manufacturer data · Last verified: 31 Oct 2026
No documents are on file for this part yet.
Ask us for the datasheetThe EAN (GTIN) of 3RS70 is 4047621001166.
3RS70 ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival.
A function-by-function comparison of Schneider Zelio Control and ABB CM monitoring relays covering three-phase supply, voltage, current, level, temperature, module width, and measurement method.
A step-by-step selection guide for phase and voltage monitoring relays, covering function match, auxiliary supply, threshold setting, output logic, and Schneider vs ABB CM...
How conductive level monitoring relays detect liquid presence, size sensitivity for the medium, and control pump up/down cycles with dry-run protection.