Product Model
RM35ATW5MW

Selling Points
- 1Temperature Monitoring: Accurately monitors temperatures between 34°C to 46°C and undertemperatures from -1°C to 11°C.
- 2Phase Failure Detection: Automatically detects phase failure and undertemperatures for reliable operation.
- 3Adjustable Time Delay: Offers adjustable time delay range from 0.1 to 10 seconds with a tolerance of 0 to 10% of the full scale value.
- 4High Power Handling: Handles up to 1250 VA with a minimum switching current of 10 mA at 5 V DC.
- 5Cadmium-Free Contacts: Features cadmium-free output contacts ensuring environmental safety and compliance.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
Parameter | Value | Parameter | Value |
---|---|---|---|
Range of Product | Harmony Control Relays | Relay Type | Temperature control relays |
Product or Component Type | Elevator machine room temperature control relay | Product Specific Application | For elevator machine rooms and 3-phase supplies |
Relay name | RM35AT | Relay monitored parameters | Phase sequence<br />Phase failure detection<br />Undertemperature: -1...11°C<br />Overtemperature: 34...46°C |
Time delay range | 0.1...10 s adjustable 0...10 % of the full scale value) | Switching capacity in VA | 1250 VA |
Minimum switching current | 10 mA 5 V DC | Maximum power consumption in VA | 3.5 VA AC |
Utilisation category | AC-12 IEC 60947-5-1<br />AC-13 IEC 60947-5-1<br />AC-14 IEC 60947-5-1<br />AC-15 IEC 60947-5-1<br />DC-12 IEC 60947-5-1<br />DC-13 IEC 60947-5-1<br />DC-14 IEC 60947-5-1 | time delay | Adjustable 1...10 s Tt- time delay upon fault |
Measurement range | 208...480 V AC<br />+/- 1...46 °C | Reset time | 8 s |
Maximum switching voltage | 250 V AC/DC | [Us] rated supply voltage | 24...240 V AC/DC |
[Un] rated nominal voltage | 24...240 V AC/DC 50/60 Hz, non self-powered | Supply voltage limits | 20.4…264 V AC<br />21.6…264 V DC |
Maximum power consumption in W | 0.6 W DC | Resistance across terminals | 600 kOhm 3-phase<br />1.33 kOhm temperature |
Width | 1.4 in (35 mm) | Output contacts | 2 NO |
Contacts material | Cadmium free | Nominal output current | 5 A |
delay at power up | 0.2 s | Measurement accuracy | +/- 2 °C |
Response time | <= 3.5 s + Tt (in case of temperature fault)<br />500 ms (in case of 3-phase fault)<br />500 ms (on disappearance of fault) | Temperature probe type | Pt 100 - 3-wire |
Installed device | Pt 100 probe cable length <= 10 m | marking | CE : EMC 89/336/EEC<br />CE : 73/23/EEC |
Overvoltage category | III IEC 60664-1 | Insulation resistance | > 500 MOhm 500 V DC between supply and relay output IEC 60255-5<br />> 500 MOhm 500 V DC between measurement and relay output IEC 60664-1<br />> 1 MOhm 500 V DC between supply and measurement IEC 60255-5<br />> 500 MOhm 500 V DC between supply and relay output IEC 60664-1<br />> 500 MOhm 500 V DC between measurement and relay output IEC 60255-5<br />> 1 MOhm 500 V DC between supply and measurement IEC 60664-1 |
[Ui] rated insulation voltage | 400 V IEC 60664-1 | operating voltage tolerance | - 10 % + 10 % Un DC<br />- 15 % + 10 % Un AC |
Supply frequency | 50/60 Hz +/- 10 % | Operating position | Any position without derating |
Connections - terminals | Screw terminals, 1 x 0.5...1 x 4 mm² AWG 20...AWG 11) solid without cable end<br />Screw terminals, 2 x 0.5...2 x 2.5 mm² AWG 20...AWG 14) solid without cable end<br />Screw terminals, 1 x 0.2...1 x 2.5 mm² AWG 24...AWG 12) flexible with cable end<br />Screw terminals, 2 x 0.2...2 x 1.5 mm² AWG 24...AWG 16) flexible with cable end | Tightening torque | 5.3…8.9 lbf.in (0.6…1 N.m) IEC 60947-1 |
Housing material | Self-extinguishing plastic | local signalling | 1 LED Green power ON<br />1 LED Yellow correct temperature (high R1)/(low R2)<br />1 LED Yellow phases of relay |
Mounting support | 35 mm symmetrical DIN rail conforming to IEC 60715 | Electrical durability | 100000 cycles |
Mechanical durability | 30000000 cycles | Operating rate | <= 360 operations/hour full load |
Control Type | Without test button | Immunity to microbreaks | 10 ms |
Electromagnetic compatibility | Emission standard for industrial environments IEC 61000-6-4<br />Emission standard for residential, commercial and light-industrial environments IEC 61000-6-3<br />Immunity for industrial environments NF EN/IEC 61000-6-2 | Standards | NF EN 60255-6<br />IEC 60255-6 |
Product Certifications | GL<br />UL<br />C-tick<br />CSA<br />GOST | Ambient Air Temperature for Storage | -40…158 °F (-40…70 °C) |
Ambient Air Temperature for Operation | -4…122 °F (-20…50 °C) | Vibration resistance | 0.35 mm 5…57.6 Hz)IEC 60068-2-6/IEC 60255-21-1<br />1 gn 57.6…150 Hz)IEC 60068-2-6/IEC 60255-21-1 |
Shock resistance | 15 gn 11 ms IEC 60255-21-1 | IP degree of protection | IP20 IEC 60529 terminals)<br />IP30 IEC 60529 casing) |
Pollution degree | 3 IEC 60664-1 | Dielectric test voltage | 2 kV AC 50 Hz, 1 min |
Non-dissipating shock wave | 4 kV |
Specifications may be subject to change without notice