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Description
RM17UB310Main Range of product Zelio Control Product or component type Modular measurement and control relays Relay type Voltage control relay Product specific application For 3 phase supply Relay name RM17UB3 Relay monitored parameters Overvoltage and undervoltage between phases Time delay Adjustable 0. 3 30 s, 0 + 10 % on crossing the threshold Switching capacity in VA 1250 VA Minimum switching current 10 mA at 5 V DC Maximum switching current 5 A AC DC
Main
| Range of product | Zelio Control |
| Product or component type | Modular measurement and control relays |
| Relay type | Voltage control relay |
| Product specific application | For 3-phase supply |
| Relay name | RM17UB3 |
| Relay monitored parameters | Overvoltage and undervoltage between phases |
| Time delay | Adjustable 0.3...30 s, 0 + 10 % on crossing the threshold |
| Switching capacity in VA | 1250 VA |
| Minimum switching current | 10 mA at 5 V DC |
| Maximum switching current | 5 A AC/DC |
| Power consumption in VA | 0…22 VA at 400 V AC 50 Hz |
| Measurement range | 183...528 V voltage AC |
| 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 |
Complementary
| Reset time | 1500 ms time delay |
| Maximum switching voltage | 250 V AC/DC |
| [Us] rated supply voltage | 208...480 V AC 50/60 Hz +/- 10 % |
| Supply voltage limits | 183…528 V AC |
| Voltage detection threshold | 183 V |
| Control circuit frequency | 50...60 Hz +/- 10 % |
| Output contacts | 1 C/O |
| Nominal output current | 5 A |
| Maximum measuring cycle | 150 ms measurement cycle as true rms value |
| Hysteresis | 2 % |
| Delay at power up | 650 ms |
| Measurement accuracy | +/- 10 % of the full scale value |
| Repeat accuracy | +/- 0.5 % for input and measurement circuit +/- 1 % for time delay |
| Measurement error | < 1 % over the whole range with voltage variation 0.05 %/°C with temperature variation |
| Response time | < 200 ms (in the event of a fault) |
| Quality labels | CE |
| Overvoltage category | III conforming to IEC 60664-1 |
| Insulation resistance | > 500 MOhm at 500 V DC conforming to IEC 60255-5 > 500 MOhm at 500 V DC conforming to IEC 60664-1 |
| [Ui] rated insulation voltage | 400 V conforming to IEC 60664-1 |
| Operating position | Any position without |
| 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...2 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 | Self-extinguishing plastic |
| Local signalling | LED (green)power ON: LED (yellow)relay ON: |
| Mounting support | 35 mm symmetrical DIN rail conforming to EN/IEC 60715 |
| Electrical durability | 100000 cycles |
| Mechanical durability | 30000000 cycles |
| Operating rate | <= 360 operations/hour full load |
| Safety reliability data | B10d = 470000 MTTFd = 502.2 years |
| Width | 17.5 mm |
| Net weight | 0.08 kg |
| Functionality | Overvoltage and undervoltage detection |
| Compatibility code | RM17 |
Environment
| Electromagnetic compatibility | Emission standard for industrial environments conforming to EN/IEC 61000-6-4 Emission standard for residential, commercial and light-industrial environments conforming to EN/IEC 61000-6-3 Immunity for industrial environments conforming to NF EN/IEC 61000-6-2 |
| Standards | EN/IEC 60255-1 |
| Product certifications | GOST UL GL C-Tick CSA |
| Directives | 89/336/EEC - electromagnetic compatibility 73/23/EEC - low voltage directive |
| 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 1 gn (f= 57.6…150 Hz) conforming to IEC 60255-21-1 |
| Shock resistance | 5 gn conforming to IEC 60068-2-27 |
| 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, 1 min AC 50 Hz |
| Non-dissipating shock wave | 4 kV |
Offer Sustainability
| Sustainable offer status | Green Premium product |
| REACh Regulation | REACh Declaration |
| EU RoHS Directive | Pro-active compliance (Product out of EU RoHS legal scope) EU RoHS Declaration |
| Mercury free | Yes |
| RoHS exemption information | Yes |
| China RoHS Regulation | China RoHS declaration |
| Environmental Disclosure | Product Environmental Profile |
| Circularity Profile | End of Life Information |
| WEEE | The product must be disposed on European Union markets following specific waste collection and never end up in rubbish bins |
Contractual warranty
| Warranty | 18 months |
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Exchange/Return Notes
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4.5 ★★★★★
Based on 17 reviews
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Product Reviews
★★★★★ 5
Worthwhile read.
Format: Kindle
The first few chapters would perhaps been worth 10 stars the remaining chapters not so much although it was good information. It became a bit monotonous but all in all it’s still a five star book.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026
★★★★★ 5
Open our eyes
Format: Paperback
I recently finished reading Joash's very insightful, inspirational, and encouraging book. I hope it is read and implemented far and wide. His interpretation of Jesus and "the church" is as close to the spirit of Scripture as I can find. Twenty years ago, I read "Jesus and the Disinherited" by Howard Thurman that led me to places and situations and cultures and events which were not part of my own life's context. It was Jesus' context and I began to understand his lessons through his eyes instead of my own. Joash, like Howard Thurman, is right - we colonized, Caucasian, Western civilization folks just don't get it. But we should and we need to. Open your mind to read this book and see things through God's eyes. Thank you Joash!! We should all look for ways to extend this teaching to others. "...thy will be done, on Earth [all of earth and humanity] as it is [and will be] in Heaven.
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Reviewed in the United States on December 6, 2025
★★★★★ 5
A Bold, Pastoral Call to Decolonize the Gospel
Format: Paperback, Format: Paperback
When I began my journey of theological deconstruction, I quickly realized that shedding the harmful elements of conservative white evangelicalism wasn’t enough. The deeper I went, the more I saw how white Christianity remains entangled with colonial narratives that uphold social and sexual hierarchies and distort the liberating truth of the Gospel.
Rev. Joash Thomas’s *The Justice of Jesus* is the book I didn’t know I needed. His voice has profoundly shaped my theological imagination, and this work is a masterclass in liberation ecclesial theology. With clarity and courage, he names the perversion of white, colonialist, slaveholder theology and invites readers to confront its lingering presence in our churches, our pulpits, and our lives.
What sets this book apart is its balance of prophetic fire and pastoral tenderness. Rev. Joash never veers into cynicism or outrage for outrage’s sake. Instead, he offers practical, Spirit-led guidance for reclaiming the Gospel from the sin of colonialism and whiteness. He casts a vision of Eucharistic unity, a table wide enough to defy empire and deep enough to hold our collective liberation in Christ.
This book emboldened me to use my voice and privilege to pursue the decolonization of theological practice in my own context. I cannot recommend it highly enough to anyone seeking a Gospel that liberates, heals, and restores.
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Reviewed in the United States on October 3, 2025
★★★★★ 5
Un libro necesario para la iglesia hoy
Format: Paperback, Format: Paperback
As a believer from the Global South. As a child who first heard the liberating message of Jesus through integral mission in Latin America. Yet, over the years, I was also exposed to a highly colonized version of the gospel—one that increasingly abandoned the most vulnerable and aligned itself with a form of Christianity distant from real human needs. Reading this book restores my hope, not because change will come quickly or easily, but because it opens the space for the necessary conversations of reevaluation.
Joash, in a very direct way, lays out the causes and effects of inherently unjust colonizing systems that have broken entire societies, and shows how these systems have permeated the way we live out the gospel of Jesus. By bringing these to light in various areas, he challenges the Western church to reconsider its practices, to move alongside the oppressed, and to become aware of its own shortcomings. At the same time, he reminds us that hope remains, that we have much to learn from the Global South, and that there are many silenced voices that must urgently be heard.
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Reviewed in the United States on October 2, 2025
★★★★★ 5
Generous, inclusive, and deeply Christian.
Format: Paperback
What an amazing book this is! Joash Thomas challenges western Christians to sit in dialogue with global south brothers and sisters, and to be willing to learn from them. If justice means everyone having what God wants them to have, then why is justice not a priority for so many of us? Never scolding, and never despairing, Joash walks us through the lessons we could take away from such a meeting, and offers actual strategies for incorporating "justice work" into the lives of western churches. A MUST READ!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 3, 2025