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Siemens 3UG4633-1AL30 Digital Voltage Monitoring Relay

Siemens 3UG4633-1AL30 Digital Voltage Monitoring Relay with Internal Power Supply.

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ManufacturerSiemens

Part number3UG4633-1AL30

Type Digital Monitoring Relay

Function Voltage Monitoring

Range 17 to 275 V AC/DC

Power Supply Internal

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12-month warranty

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Worldwide delivery

US, EU, Asia, Middle East

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Veteran-owned

CAGE: 9NK75

Overshoot and Undershoot Voltage Monitoring Voltage Range (17-275V AC/DC) Internal Power Supply Adjustable Delay (0.1-20s) Adjustable Hysteresis (0.1-150V) Single Changeover Contact

Product description

The Siemens 3UG4633-1AL30 is a digital monitoring relay designed for voltage monitoring, covering overshoot and undershoot conditions within the range of 17 to 275 V AC/DC. A key feature is its internal power supply, simplifying installation. It includes an adjustable noise pulses delay from 0.1 to 20 seconds, with a hysteresis adjustable from 0.1 to 150 V. This relay provides one changeover contact and features both spring-loaded and screw terminal connections.

This relay is ideal for applications requiring precise voltage control and protection in medium-voltage industrial systems. Its integrated power supply and adjustable parameters make it a versatile choice for ensuring stable operation of sensitive equipment.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 3UG4633-1AL30. We provide reliable, cost-effective automation components and ensure fast shipping to support your immediate needs.

Technical specifications

Type	Digital Monitoring Relay
Function	Voltage Monitoring
Range	17 to 275 V AC/DC
Power Supply	Internal
Delay Time	0.1 to 20 s
Hysteresis	0.1 to 150 V
Contacts	1 Changeover
Connection	Spring-loaded, Screw Terminal

Common applications

Medium Voltage Systems

Industrial Control

Power Monitoring

Equipment Protection

Automation Solutions

Electrical Safety

Compatible systems

Various Siemens control panels and systems

Also known as

Siemens 3UG4633-1AL30 SIRIUS Voltage Monitoring Relay

Replaces / compatible with

This part is a phase-out model. The preferred successor is the Siemens 3UG5643-1CS20 digital monitoring relay.

Technical note

Expert tip

The combination of internal power supply and dual connection options (screw and spring-loaded) offers significant flexibility during installation and maintenance.

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Frequently asked questions

Does the Siemens 3UG4633-1AL30 require an external power supply?

No, the Siemens 3UG4633-1AL30 digital monitoring relay features an internal power supply, simplifying installation and reducing component requirements.