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 ABB CM-ESS.2S (SKU: 1SVR730830R0400) is a single-phase voltage monitoring relay from the CM series, designed to continuously monitor AC or DC supply voltages across a wide measurement range of 3–600 V RMS. With dual changeover (2 C/O) output contacts and a supply voltage range of 24–240 VAC/DC, the CM-ESS.2S is engineered for reliable over- and under-voltage protection in demanding industrial control panel environments. Its compact 22.5 mm DIN rail profile makes it ideal for space-sensitive installations.
| Product Net Width | 22.5 mm |
|---|---|
| Product Net Height | 85.6 mm |
| Product Net Depth / Length | 103.7 mm |
| Product Net Weight | 0.153 kg |
| Function | Over- or undervoltage monitoring |
|---|---|
| Measuring Range | 3 ... 30 V, 6 ... 60 V, 30 ... 300 V, 60 ... 600 V |
| Time Range | Tripping Delay (ON) 0 s |
| Rated Control Supply Voltage (Us) | 24 ... 240 V AC/DC |
| Output | 2 C/O Contacts |
| Terminal Type | Screw Terminals |
| Rated Operational Current AC-12 (Ie) | (230 V) 4 A |
| Rated Operational Current AC-15 (Ie) | (230 V) 3 A |
| Rated Operational Current DC-12 (Ie) | (24 V) 4 A |
| Rated Operational Current DC-13 (Ie) | (24 V) 2 A |
| Minimum Switching Capacity | 24 V, 10 mA |
| Rated Impulse Withstand Voltage (Uimp) | Measuring Circuit / Output Circuit 6 kV, Output Circuit 1 / Output Circuit 2 4 kV, Supply Circuit / Measuring Circuit 6 kV, Supply Circuit / Output Circuit 4 kV |
| Rated Insulation Voltage (Ui) | Measuring Circuit / Output Circuit 600 V, Output Circuit 1 / Output Circuit 2 250 V, Supply Circuit / Measuring Circuit 600 V, Supply Circuit / Output Circuit 250 V |
| Degree of Protection | Housing IP50, Terminals IP20 |
| Overvoltage Category | III |
| Pollution Degree | 3 |
| Short-Circuit Protective Devices | Output Circuit NC - F Type Fuses 10 A, Output Circuit NO - F Type Fuses 10 A |
| Electrical Durability | AC-12 100000 cycle |
| Mechanical Durability | Nr. Operations 30000000 cycle |
| Connecting Capacity | Flexible with Ferrule 1x 0.5 ... 2.5 mm², Flexible with Ferrule 2x 0.5 ... 1.5 mm², Flexible with Insulated Ferrule 1x 0.5 ... 2.5 mm², Flexible with Insulated Ferrule 2x 0.5 ... 1.5 mm², Flexible 1x 0.5 ... 2.5 mm², Flexible 2x 0.5 ... 1.5 mm², Rigid 1x 0.5 ... 4 mm², Rigid 2x 0.5 ... 2.5 mm² |
| Tightening Torque | 0.6 ... 0.8 N·m |
| Wire Stripping Length | 8 mm |
| Recommended Screw Driver | 0.8 x 4, 4.5, Pozidriv 1 |
| Mounting Position | 1 ... 6 |
| Mounting on DIN Rail | TH35-15 (35 x 15 mm Mounting Rail) acc. to IEC 60715, TH35-7.5 (35 x 7.5 mm Mounting Rail) acc. to IEC 60715 |
| Standards | CAN/CSA C22.2 No.14, IEC/EN 63000, IEC/EN 60255-27, IEC/EN 61000-6-2, IEC/EN 61000-6-3, UL 508 |
| Maximum Operating Voltage UL/CSA | Output Circuit 300 V AC |
|---|---|
| Contact Rating UL/CSA | B300 |
| Connecting Capacity UL/CSA | Flexible 1x 18-14 AWG, Flexible 2x 18-16 AWG, Rigid 1x 20-12 AWG, Rigid 2x 20-14 AWG |
| Tightening Torque UL/CSA | 7.08 in·lb |
| Pilot Duty UL/CSA | B300 |
| Flammability According to UL94 | V-0 |
| Part number | 1SVR730830R0400 |
|---|---|
| Type designation | CM-ESS.2S |
| Brand | ABB |
| Condition | New, factory sealed |
| Source | ABB and its authorised distributors |
| Warranty | Manufacturer warranty |
| EAN | 4016779852166 |
| eCl@ss | 27371801 |
| Minimum Order Quantity | 1 piece |
| Customs Tariff Number | 85364900 |
| Ambient Air Temperature | Operation -20 ... +60 °C, Storage -40 ... +85 °C |
|---|---|
| Maximum Operating Altitude Permissible | Without Derating 2000 m |
| REACH Declaration | 1SVD981001-4501 |
|---|---|
| RoHS Declaration | 1SVD981001-4401 |
| RoHS Information | Following EU Directive 2011/65/EU and Amendment 2015/863 July 22, 2019 |
| Toxic Substances Control Act - TSCA | 2CMT2023-006536 |
| ETIM 7 | EC001438 - Voltage monitoring relay |
|---|---|
| eClass | V11.0 : 27371801 |
| UNSPSC | 39122332 |
| E-Number (Sweden) | 3860619 |
| Package Level 1 Units | box 1 piece |
|---|---|
| Package Level 1 Width | 97 mm |
| Package Level 1 Depth / Length | 30 mm |
| Package Level 1 Height | 109 mm |
| Package Level 1 Gross Weight | 0.176 kg |
| Package Level 1 EAN | 4016779852166 |
| Shipping weight | 0.176 kg |
| Ships from | Türkiye |
| Dispatch | 11 Nov |
| Stock | Low stock |
Source: manufacturer data · Last verified: 30 Oct 2026
No documents are on file for this part yet.
Ask us for the datasheetThe rated operational voltage of CM-ESS.2S is 3–600 V AC.
The tariff (HS) code on file for CM-ESS.2S is 85364900.
The EAN (GTIN) of CM-ESS.2S is 4016779852166.
CM-ESS.2S ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival. Stock items are dispatched within 1–2 business days.
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