Siemens SIRIUS 3UG4617-2CR20 phase monitoring relay – NEW

Description

Siemens 3UG4617-2CR20 phase monitoring relay — description and applications

The Siemens 3UG4617-2CR20 phase monitoring relay is a SIRIUS series module designed for monitoring three-phase supply parameters in industrial installations. The device monitors voltage in the 3~ 160–690 V AC range and detects faults such as phase failure, incorrect phase sequence, voltage asymmetry, and overvoltage/undervoltage. This protects connected loads — above all three-phase motors — from the effects of supply disturbances.

The product is aimed at maintenance departments, automation system integrators, and machine builders who need reliable protection of supply circuits in control cabinets. The Siemens 3UG4617-2CR20 phase monitoring relay features an LCD display and a button panel, allowing parameters to be viewed and configured without additional software.

Key features

• Supply/voltage measurement 3~ 160–690 V AC
• Detection of phase sequence, phase failure, and voltage asymmetry of 5–20%
• Phase sequence correction function
• Overvoltage and undervoltage monitoring (Umin/Umax)
• Two relay outputs 1CO + 1CO — terminals 12/11/14 and 22/21/24
• LCD display and navigation buttons for readout and settings
• Spring-loaded terminals — fast installation without tightening screws
• Modular housing for DIN rail mounting

Technical specifications

The table below lists the parameters confirmed on the nameplate and packaging label of the Siemens 3UG4617-2CR20 phase monitoring relay.

Parameter	Value
Manufacturer	Siemens
Series	SIRIUS 3UG46
Catalog number (MPN)	3UG4617-2CR20
Measuring voltage	3~ 160–690 V AC
Insulation voltage Ui	690 V
Impulse withstand voltage Uimp	6 kV
Relay outputs	1 CO + 1 CO
Switching current DC-13	1 A/24V, 0,2A/125V, 0,1A/250V
Switching current AC-15	3 A
Load category (UL)	B300 / R300
Input protection	fuse max. 4 A gL/gG
Terminals	spring-loaded terminals, 2x 0,25–1,5 mm² / 2x AWG 24–16
Standard	IEC 60947-5-1, GB/T 14048.5
Mounting	DIN rail, 22,5 mm enclosure
Condition	brand new (factory new), unused (new-old-stock)

Applications

Phase monitoring relays of this type are used in control cabinets of production machinery, as well as in pump, ventilation and refrigeration systems supplied from a three-phase network. They protect motors and other loads against operation with an incorrect phase sequence or the loss of one phase, reducing the risk of mechanical and electrical damage. They are used wherever the maintenance department requires early detection of power supply disturbances — in the food industry, machine building, power engineering and building services infrastructure.

Condition and scope of delivery

The Siemens 3UG4617-2CR20 phase monitoring relay on offer comes from surplus stock (new-old-stock) — it is a brand new (factory new), unused and never-installed component. The photos show the original cardboard packaging with the manufacturer's label confirming the part number, batch number and country of manufacture. The device's LCD display is clean, and the housing shows no scratches or traces of DIN rail mounting.

The box shows minor soiling and surface scuffing on the outside, which is typical of surplus storage and does not affect the condition of the relay itself. The advantage of buying from surplus stock is a fully functional new component, often no longer available through regular distribution or with a shorter lead time than ordering from the manufacturer. Buyers should review all photos, as they form part of the product description.

Why RECOSTOCK

RECOSTOCK specializes in selling brand new (factory new) industrial automation components from surplus stock and liquidations, at prices lower than in regular distribution. We issue a VAT invoice for every transaction, and products are packed appropriately for the transport of electronic and industrial parts. Shipping is from Poland. We also help verify catalog designations and select replacements if the customer is unsure of compatibility with their documentation.

Compatibility and installation

The relay mounts on a standard DIN rail, and connection is made via spring-clamp terminals labeled on the housing: L1/L2/L3 for the measuring circuit and 12/11/14 and 22/21/24 for the two relay outputs. Parameters (Umin/Umax, asymmetry, delay) are configured using the buttons and LCD display on the front of the device. Before purchasing, be sure to compare the full part number 3UG4617-2CR20 with the documentation of the machine or the component being replaced to confirm the replacement's compatibility.

Documentation and similar products

Full technical documentation, datasheets and operating manuals for this series can be found in the Siemens technical documentation. We also encourage you to see our other automation components in RECOSTOCK — our range includes other SIRIUS relays, contactors and modules from surplus stock.

Frequently asked questions (FAQ)

Does the part number shown in the photos match the actual product?

Yes — the 3UG4617-2CR20 designation was copied directly from the label on the device, the technical nameplate on the back of the housing, and the label on the packaging; all three sources match.

What does new-old-stock status mean?

This is a brand new (factory new), unused product from surplus stock or a distributor's inventory liquidation — it has never been installed, but it may have sat in storage for some time, which is sometimes visible on the outer packaging.

Is this Siemens 3UG4617-2CR20 phase monitoring relay compatible with my installation?

The measuring parameters (3~ 160–690V AC) and the 1CO+1CO outputs are confirmed on the nameplate; however, before purchasing, always compare the full part number with the documentation of the machine or the component being replaced.

How is shipping handled and will I receive a VAT invoice?

The product ships from Poland in secure industrial packaging, and we issue a VAT invoice with every sale.

Have questions about designation compatibility or availability? Contact us before purchasing — we will help you verify the details.