Siemens SIRIUS 3UG4625

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SIRIUS

3UG4625

3UL23

Überwachungsrelais zur

Fehlerstromüberwachung mit Wandler

Originalbetriebsanleitung

Monitoring relay for

residual current monitoring with transformer

Original Operating Instructions

Ρελέ ελέγχου για τον έλεγχο του

ρεύματος διαρροής με μετατροπέα

Πρωτότυπες οδηγίες χρήσης

Przekaźnik monitorujący do

prądu uszkodzeniowego z przekształtnikiem

Oryginalna instrukcja obsługi

Relais de surveillance de

courant de défaut avec transformateur

Instructions de service originales

Trafoga kontrollrelee

rikkevooluseireks

Originaal-kasutusjuhend

Releu de monitorizare pentru

monitorizarea curenţilor reziduali, cu convertizor

Instrucţiuni originale de utilizare

Relé de monitoreo de

corriente diferencial con transformador

Instructivo original

Valvontarele vikavirran

valvontaan muuntimella

Alkuperäinen käyttöohje

Kontrolné relé na

monitorovanie chybného prúdu s meničom

Originálny návod na obsluhu

Relè di controllo della corrente

di guasto con trasformatore differenziale

Istruzioni operative originali

Relej za nadzor struje

kvara s pretvaračem

Originalne upute za uporabu

Nadzorni rele za

nadzor okvarnega toka s pretvornikom

Originalno navodilo za obratovanje

Relé de supervisão para o monitoramento

da corrente residual com transdutor

Instruções de Serviço Originais

Ellenőrző jelfogó

hibaáram-felügyelethez átalakítóval

Eredeti üzemeltetési útmutató

Övervakningsrelä för

felströmövervakning med omformare

Originalbruksanvisning

Контролно реле с трансформатор за

наблюдение за остатъчни напрежения

Оригинално ръководство за експлоатация

Kontrolinė relė liekamosios

srovės kontrolei su keitikliu

Originali eksploatacijos instrukcija

Kaçak akım denetimi için

dönüştürücülü denetleme rölesi

Orijinal İşletme Kılavuzu

Dohlížecí relé pro monitorování

svodového proudu s převodníkem

Originální návod k obsluze

Kontroles relejs ar pārveidotāju

bojājuma strāvas kontrolei

Oriģinālā lietošanas pamācība

РУ

Контрольное реле мониторинга тока

утечки c преобразователем

Оригинальное руководство по эксплуатации

Overvågningsrelæ til

fejlstrømsovervågning med omformer

Original brugsanvisning

Controlerelais voor

lekstroombewaking met omzetter

Originele handleiding

中文

带互感器的用于监控故障电流的监控继电器

原始操作说明

NEB927022310000/RS-AC/003 Last update: 27 January 2016

3ZX1012-0UG40-0AA0

SIEMENS AG Telephone: +49 (911) 895-5900 (8°° - 17°° CET)

http://support.industry.siemens.com

3ZX1012-0UG40-0AB0

Technical Assistance Fax: +49 (911) 895-5907

Breslauer Str. 5 E-mail: technical-assistance@siemens.com

D-90766 Fürth Internet: www.siemens.com/sirius/technical-assistance

3UG4625-1CW30

3UG4625-2CW30

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Do you have a question about the Siemens SIRIUS 3UG4625 and is the answer not in the manual?

This document describes the Siemens SIRIUS 3UG4625 and 3UL23 monitoring relays, designed for residual current monitoring with a transformer. The manual provides original operating instructions in multiple languages, including English.

Function Description

The 3UG4625 and 3UL23 devices are monitoring relays used for detecting residual currents in electrical systems. They operate in conjunction with external current transformers (3UL23 series) to measure and evaluate fault currents. The relays are designed to trip when the monitored residual current exceeds a set threshold, providing protection against electrical faults and ensuring system safety.

The relays offer various operational modes and settings, including:

Threshold Monitoring: The primary function is to monitor the residual current against a user-defined threshold (IΔ).
Time Delay: Adjustable time delays can be configured for both tripping (onDel) and reset (offDel) to prevent nuisance tripping from transient events.
Memory Function: The device can be configured with or without a memory function (Mem). When enabled, the relay retains its tripped state even after the fault condition clears, requiring a manual reset.
Hysteresis: A configurable hysteresis (Hyst) is available to prevent rapid switching when the residual current hovers around the set threshold. This is typically set as a percentage of the threshold.
Normally Open/Normally Closed (NO/NC) Output: The relay provides a configurable output contact (NO or NC) to interface with control systems or signaling devices.
Initialization (Init): The device can be initialized to a known state, with options for "ERR" (error) or "OK" (normal operation) depending on the memory setting.

The operational diagrams illustrate the relay's behavior under different conditions:

Mem = no; Init = ERR/OK: Shows the relay's response to residual current changes without the memory function, with different initial states. The relay trips when I > IΔ and resets when I < IΔ minus hysteresis.
Mem = yes; Init = ERR/OK: Demonstrates the relay's behavior with the memory function enabled. Once tripped (I > IΔ), the relay remains in the tripped state until manually reset, even if the residual current drops below the threshold.

Important Technical Specifications

Device Models:

3UG4625-1CW30
3UG4625-2CW30

Wiring Terminals:

Control Supply Voltage (A1+, A2-): The operating voltage for the relay.
Current Transformer Inputs (C1, C2): Connections for the external current transformer.
Output Contacts (11, 12, 14, 21, 22, 24): Configurable relay outputs.

Connection Data (3UG4625-1CW30):

Screw Type: PZ2 (Ø 5...6 mm)
Torque: 0.8...1.2 Nm (7 to 10.3 lb in)
Solid Wire: 1 x (0.5...4) mm², 2 x (0.5...2.5) mm²
Fine-Stranded Wire: 1 x (0.5...2.5) mm², 2 x (0.5...1.5) mm²
AWG: 2 x (20 to 14)

Connection Data (3UG4625-2CW30):

Screw Type: Ø 3.0 x 0.5 [mm]
Solid Wire: 2 x (0.25...1.5) mm²
Fine-Stranded Wire: 2 x (0.25...1.5) mm²
AWG: 2 x (24 to 16)

Current Transformers (3UL23 series):

Models: 3UL2302-1A, 3UL2303-1A, 3UL2304-1A, 3UL2305-1A, 3UL2306-1A, 3UL2307-1A
Mounting: Can be mounted on a DIN rail or directly to a panel.
Connection Data (3UL230.-1A):
- Screw Type: PZ2
- Torque: 0.5 Nm / 0.6 Nm (4.4 lb in / 5.3 lb in)
- Screw Diameter: Ø 3.0
- Solid Wire: 1 x (0.5...2.5) mm²
- Fine-Stranded Wire: 1 x (0.5...1.5) mm²
Connection Data (3UL2307-1A):
- Screw Type: PZ2
- Torque: 0.5 Nm (4.4 lb in)
- Screw Diameter: Ø 4.5
- Solid Wire: 1 x (0.75...4) mm²
- Fine-Stranded Wire: 1 x (0.75...2.5) mm²

Dimensions (approximate, in mm):

3UG4625-1CW30: a=65, b=36, c=82.6, d=92.2, e=101.6
3UG4625-2CW30: a=--, b=--, c=84.4, d=93.9, e=103.4
Overall Device Dimensions: 22.5 mm width, 110.5 mm height (including terminals), 87.2 mm depth.

Usage Features

Easy Installation: The relays are designed for DIN rail mounting (3RP1902, 3RP1903) or direct panel mounting, offering flexibility in installation. The current transformers can also be mounted on DIN rails or directly.
User-Friendly Configuration: The front panel features a display and push buttons for setting parameters such as residual current threshold (IΔ), time delays (onDel, Del), hysteresis (Hyst), and memory function (Mem).
Status Indication: LEDs on the front panel provide clear status indications:
- "OK" (green): Normal operation.
- "I!" (red, flashing): Residual current exceeds threshold, but within delay time.
- "I!" (red, steady): Residual current exceeds threshold and relay has tripped.
- "IΔ" (yellow): Indicates the set residual current threshold.
Test/Reset Functionality: A dedicated button allows for testing the relay's function and resetting it after a trip, especially when the memory function is active.
Current Transformer Integration: The relays are specifically designed to work with the 3UL23 series current transformers, which are available in various sizes to accommodate different conductor diameters.
Safety: The device is intended for use in applications requiring residual current monitoring for protection against electric shock and fire hazards. Installation and maintenance must be performed by authorized electricians to ensure safety.

Maintenance Features

Robust Design: Siemens SIRIUS devices are known for their robust construction, contributing to a long service life and minimal maintenance requirements.
Clear Wiring Diagrams: The provided wiring diagrams facilitate correct installation and troubleshooting.
Screw Terminals: The use of screw terminals allows for secure and reliable electrical connections, which can be easily inspected and tightened if necessary.
Modular System: The modular design allows for easy replacement of individual components if needed, though specific repair instructions are not detailed in this general overview.
Technical Assistance: Siemens provides technical assistance via telephone, fax, and email, as well as an online support portal (support.industry.siemens.com) for documentation and troubleshooting. This ensures that users have access to expert help for any maintenance or operational queries.
Documentation: The comprehensive operating instructions, available in multiple languages, serve as a primary resource for maintenance and troubleshooting. Users are advised to store the manual for future reference.