frequency control relay, Harmony Control Relays, 5A, 1CO+1CO, 120…277V AC
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Quick facts
| Availability | Confirmed on request |
| Category | Harmony Control Relays |
| Lifecycle | active |
| Warranty | 12-month (new) · 3-month (used/refurbished) |
| Weight | 126 kg |
Shipping & availability
When can RM35HZ21FM be shipped?
RM35HZ21FM is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.
Can I pick up RM35HZ21FM in person?
Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.
Is express delivery available?
Yes — mention it when you request a quote for RM35HZ21FM and we'll include express shipping options in our reply.
My factory is down and I need this urgently — can you help?
For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for RM35HZ21FM, subject to availability and destination.
This Harmony RM35-HZ control relay allows monitoring of frequency control. This modular control relay is ideal for monitoring of frequency variations in electrical power sources such as wind turbine and micro-power stations. It has one of market medium form-factors with 35mm width, allowing for a flexible and easy installation on DIN rail, using the same space as any modular 3-pole DIN device. It also offers a selectable memory function, integral LED for indicating control status, sealable cover, with simple and precise settings with screw trimmers. It provides an automatic detection of abnormal electrical values before they incur serious damage to machinery thus reducing your maintenance and downtime costs. Multi function controller for wide choice selected in hard-wired logic automated systems, ideal for refurbishment of old installations without using a PLC.
Specifications
Specifications
| Range of product | Harmony Control Relays |
| Relay type | Frequency control relays |
| Product or component type | Frequency control relay |
| Relay name | RM35HZ21FM |
| Relay monitored parameters | Overfrequency and underfrequency 50 or 60 Hz |
| Time delay type | Adjustable 0.1...10 s, +/- 10 % Tt- time delay upon fault |
| Switching capacity in VA | 1250 VA |
| Minimum switching current | 10 mA at 5 V DC |
| Maximum power consumption in VA | 6 VA AC |
| Measurement range | 40...70 Hz |
| Utilisation category | AC-12 conforming to IEC 60947-5-1, AC-13 conforming to IEC 60947-5-1, AC-14 conforming to IEC 60947-5-1, AC-15 conforming to IEC 60947-5-1, DC-12 conforming to IEC 60947-5-1, DC-13 conforming to IEC 60947-5-1, DC-14 conforming to IEC 60947-5-1 |
| Reset time | 2000 ms time delay |
| Maximum switching voltage | 250 V AC/DC |
| [Us] rated supply voltage | 120...277 V AC |
| [Un] rated nominal voltage | 120...277 V AC, non self-powered |
| Supply voltage limits | 102…308 V AC |
| Control circuit frequency | 40...70 Hz |
| Width | 35 mm |
| Output contacts | 1 C/O + 1 C/O |
| Contacts material | Cadmium free |
| nominal output current | 5 A |
| maximum input frequency | 70 Hz |
| Maximum measuring cycle | 200 ms measurement cycle as true rms value |
| delay at power up | 0.5 s |
| Hysteresis | 0.3 % fixed |
| Measurement accuracy | +/- 10 % of the full scale value in input, +/- 10 % of the full scale value in time delay |
| Repeat accuracy | +/- 0.5 % for input and measurement circuit, +/- 0.5 % for time delay |
| Measurement error | +/- 0.05 %/°C with temperature variation, < +/- 1 % over the whole range with voltage variation |
| Threshold setting | -2...10 Hz, -10...2 Hz |
| Marking | CE : 73/23/EEC, CE : EMC 89/336/EEC |
| Overvoltage category | III conforming to IEC 60664-1 |
| Insulation resistance | > 500 MOhm at 500 V DC between supply and relay output conforming to IEC 60255-5, > 500 MOhm at 500 V DC between measurement and relay output conforming to IEC 60664-1, > 1 MOhm at 500 V DC between supply and measurement conforming to IEC 60255-5, > 500 MOhm at 500 V DC between supply and relay output conforming to IEC 60664-1, > 500 MOhm at 500 V DC between measurement and relay output conforming to IEC 60255-5, > 1 MOhm at 500 V DC between supply and measurement conforming to IEC 60664-1 |
| [Ui] rated insulation voltage | 400 V conforming to IEC 60664-1 |
| operating voltage tolerance | - 15 % + 10 % Un |
| Supply frequency | 50/60 Hz +/- 10 % |
| Insulation | No galvanic insulation between supply and measurement |
| 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, Screw terminals, 2 x 0.5...2 x 2.5 mm² (AWG 20...AWG 14) solid without cable end, Screw terminals, 1 x 0.2...1 x 2.5 mm² (AWG 24...AWG 12) flexible with cable end, Screw terminals, 2 x 0.2...2 x 1.5 mm² (AWG 24...AWG 16) flexible with cable end |
| Tightening torque | 0.6…1 N.m conforming to IEC 60947-1 |
| Housing material | Polycarbonate |
| local signalling | 1 LED green for power ON, 1 LED yellow for correct frequency (high R1), 1 LED yellow for correct frequency (low R2) |
| 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 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 NF EN/IEC 61000-6-2 |
| Standards | IEC 60255-6, NF EN 60255-6 |
| Product certifications | GL, UL, CSA, C-Tick, GOST |
| Ambient air temperature for storage | -40…70 °C |
| Ambient air temperature for operation | -20…50 °C |
| Relative humidity | 95 % at 55 °C conforming to IEC 60068-2-30 |
| Vibration resistance | 0.35 mm (f= 5…57.6 Hz) conforming to IEC 60068-2-6/IEC 60255-21-1, 1 gn (f= 57.6…150 Hz) conforming to IEC 60068-2-6/IEC 60255-21-1 |
| Shock resistance | 15 gn for 11 ms conforming to IEC 60255-21-1 |
| IP degree of protection | IP20 (terminals) conforming to IEC 60529, IP30 (casing) conforming to IEC 60529 |
| Pollution degree | 3 conforming to IEC 60664-1 |
| Dielectric test voltage | 2 kV AC 50 Hz |
| Non-dissipating shock wave | 4 kV |
| Unit Type of Package 1 | PCE |
| Number of Units in Package 1 | 1 |
| Package 1 Height | 4.600 cm |
| Package 1 Width | 8.000 cm |
| Package 1 Length | 9.700 cm |
| Package 1 Weight | 126.000 g |
| Unit Type of Package 2 | S03 |
| Number of Units in Package 2 | 48 |
| Package 2 Height | 30.000 cm |
| Package 2 Width | 30.000 cm |
| Package 2 Length | 40.000 cm |
| Package 2 Weight | 6.838 kg |
| Warranty (in months) | 18 |
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