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 Schneider Electric RM17TG20 is a Harmony series 3-phase control relay rated at 5A and designed for 208–480V AC supply voltages, making it a versatile solution for monitoring and protecting three-phase electrical systems in industrial automation environments. The RM17TG20 provides reliable phase sequence and phase loss detection, helping safeguard motors and other connected equipment in control panels and automation installations. Weighing just 0.13 kg, its compact form factor supports easy DIN rail integration.
| Range of Product | Harmony Control Relays |
|---|---|
| Relay Type | Control relay |
| Product or Component Type | 3-phase control relay |
| Relay name | RM17TG |
| Relay monitored parameters | Phase sequence, Phase failure detection (2 or more phase cut) |
| Control Type | Without test button |
| Contacts type and composition | 2 C/O |
| [Uc] control circuit voltage | 208...440 V |
| Product Specific Application | For 3-phase supply |
| [Us] rated supply voltage | , self-powered |
|---|---|
| Supply voltage limits | 183…484 V AC |
| Supply frequency | 50/60 Hz +/- 10 % |
| Power consumption in VA | 0…22 VA 400 V AC 50 Hz |
| Measurement range | 208...480 V AC |
| Measurement voltage limits | 183…484 V AC |
| Voltage detection threshold | < 100 V AC |
| Time delay type | Without |
| Response time | <= 130 ms (in the event of a fault) |
| Output contacts | 2 C/O |
| nominal output current | 5 A |
| Maximum switching voltage | 250 V AC |
| Switching capacity in VA | 1250 VA |
| Minimum switching current | 10 mA 5 V DC |
| Electrical durability | 100000 cycles |
| Mechanical durability | 30000000 cycles |
| Control circuit voltage limits | - 12 % + 10 % Un |
| Control circuit frequency | 50...60 Hz +/- 10 % |
| Electromagnetic compatibility | Emission standard for industrial environments conforming to IEC 61000-6-4, Emission standard for residential, commercial and light-industrial environments conforming to IEC 61000-6-3, Immunity for industrial environments conforming to IEC 61000-6-2 |
|---|---|
| Standards | IEC 60255-1 |
| Product Certifications | GOST, C-tick, UL, CSA, GL |
| Marking | CE |
| Directives | 73/23/EEC - low voltage directive, 89/336/EEC - electromagnetic compatibility |
| Ambient Air Temperature for Storage | -40…158 °F (-40…70 °C), -40…158 °F (-40…70 °C) |
| Ambient air temperature for operation | -4…122 °F (-20…50 °C) |
| Relative humidity | 95 % 131 °F (55 °C) IEC 60068-2-30 |
| IP degree of protection | IP20 IEC 60529 terminals), IP30 IEC 60529 casing) |
| Pollution degree | 3 IEC 60664-1 |
| Overvoltage category | III conforming to IEC 60664-1 |
| Dielectric test voltage | 2 kV AC 50 Hz, 1 min |
| Insulation resistance | > 500 MOhm 500 V DC IEC 60255-5 |
| [Ui] rated insulation voltage | 400 V IEC 60664-1 |
| Operating position | Any position without derating |
| Connections - terminals | Screw terminals, 1 x 0.5...1 x 4 mm² 20 AWG...11 AWG) solid without cable end, Screw terminals, 2 x 0.5...2 x 2.5 mm² 20 AWG...14 AWG) solid without cable end, Screw terminals, 1 x 0.2...1 x 2.5 mm² 24 AWG...12 AWG) flexible with cable end, Screw terminals, 2 x 0.2...2 x 1.5 mm² 24 AWG...16 AWG) flexible with cable end |
| Tightening torque | 5.3…8.9 lbf.in (0.6…1 N.m) IEC 60947-1 |
| Housing material | Polycarbonate |
| Local signalling | LED (yellow) for relay ON |
| Mounting support | 35 mm symmetrical DIN rail conforming to IEC 60715 |
| Reliability data | B10d = 850000, MTTFd = 924.6 years |
| Height | 3.5 in (90 mm), 3.5 in (88.9 mm) |
| Width | 0.7 in (17.5 mm), 0.7 in (17.8 mm) |
| Depth | 2.8 in (72 mm), 2.8 in (71.1 mm) |
| Net Weight | 0.187 lb(US) (0.085 kg), 0.19 lb(US) (0.09 kg) |
| Part number | RM17TG20 |
|---|---|
| Brand | Schneider Electric |
| Condition | New, factory sealed |
| Source | Schneider Electric and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| EAN | 3389119405072 |
| Warranty (in months) | 18 |
|---|
| Country of origin | ID |
|---|---|
| Shipping weight | 0.13 kg |
| Ships from | Türkiye |
| Dispatch | 11 Nov |
| Stock | In stock |
Source: manufacturer data · Last verified: 30 Oct 2026
The rated current of RM17TG20 is 5 A.
The rated operational voltage of RM17TG20 is 208–480 V AC.
The tariff (HS) code on file for RM17TG20 is 85364900.
The EAN (GTIN) of RM17TG20 is 3389119405072.
RM17TG20 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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