Overload relay 1-1.6 A 3-phase bi-relay bi-metallic 50 Hz - 3UW5102-1A

Product Description

Siemens 3UW5102-1A Overload Relay – 1–1.6A, 3-Phase Thermal Motor Protection

The Siemens 3UW5102-1A is a 3-phase thermal overload relay designed to provide reliable motor protection against sustained overload conditions. With an adjustable 1–1.6A current range, this Siemens overload relay is suitable for protecting small industrial motors used in motor starters, control panels, pumps, machinery, and automation systems.

Using bi-metallic thermal protection technology, the overload relay responds to excessive current over time and helps prevent damaging motor overheating. It is designed for 50Hz three-phase motor applications and can be integrated with compatible Siemens motor starter and contactor arrangements. Siemens documentation identifies the 3UW5102 series as thermal overload relays used in 3-phase, 50Hz motor starter applications.

Key Features

• Siemens 3UW5102-1A thermal overload relay

• Adjustable 1–1.6A overload protection range

• 3-phase motor protection for industrial applications

• Bi-metallic thermal overload protection

• Designed for 50Hz motor applications

• Helps protect motors against sustained overload conditions

• Suitable for motor starter and contactor applications

• Compact solution for industrial control panels

• Suitable for OEMs, panel builders, and electrical contractors

Applications

The Siemens 3UW5102-1A overload relay is suitable for:

• 3-phase motor protection

• Industrial motor starters

• Electrical control panels

• Motor control cabinets

• Pump applications

• Industrial machinery

• Manufacturing equipment

• Automation systems

• OEM motor control panels

• Low-voltage motor protection systems

Benefits

The Siemens thermal overload relay provides dependable protection against prolonged overcurrent conditions that can cause excessive motor heating. Its adjustable 1–1.6A range allows the relay to be selected and adjusted according to the motor's operating current.

The bi-metallic thermal protection principle provides a simple and practical solution for general-purpose motor protection, making the 3UW5102-1A suitable for industrial motor starter applications where reliable overload protection is required.

Why Choose Siemens 3UW5102-1A from SB Smart?

SB Smart supplies genuine Siemens overload relays, motor protection products, contactors, SIRIUS components, and industrial automation products for panel builders, OEMs, electrical contractors, system integrators, and industrial customers.

The Siemens 3UW5102-1A can be sourced through SB Smart with product assistance, availability information, and quotation support for your motor protection requirements.

Frequently Asked Questions

What is Siemens 3UW5102-1A?
The Siemens 3UW5102-1A is a 3-phase bi-metallic thermal overload relay designed for motor protection applications.

What is the current range of Siemens 3UW5102-1A?
The Siemens 3UW5102-1A has an adjustable current range of 1–1.6A. Siemens' 2026 India price-list data identifies this model with the 1–1.6A relay range.

What is a thermal overload relay used for?
A thermal overload relay protects a motor against sustained overload conditions that can result in excessive heating and motor damage.

Is Siemens 3UW5102-1A suitable for 3-phase motors?
Yes. The 3UW5102 series is used in 3-phase, 50Hz motor starter applications.

What does bi-metallic overload protection mean?
Bi-metallic protection uses thermal elements that respond to the heating effect of excessive current. When an overload persists, the mechanism operates to disconnect the motor circuit through the associated control system.

Where can Siemens 3UW5102-1A be used?
It can be used in industrial motor starters, control panels, pumps, machinery, manufacturing equipment, and compatible Siemens motor control applications.

Where can I buy Siemens 3UW5102-1A?
You can contact SB Smart for pricing, availability, and quotation assistance for the Siemens 3UW5102-1A overload relay.