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Over Load Relay

Name: Over Load Relay
Brand: OM ELECTRICALS
Price: 1250.0 INR
Availability: InStock

Price 1250.0 INR/ Unit

Get a Price/Quote

MOQ : 10 Units

Over Load Relay Specification

Contact Resistance
50 m

Mechanical Life
Over 1 Million Operations

Protect Feature
Thermal Overload Protection

Working Temperature
-20C to +55C

Contact Material
Silver Alloy Contacts

Ambient Temperature
-20C to +60C

Power Consumption
Low

Dielectiric Strength
2000 V AC for 1 Minute

Contact Form
1NO + 1NC

Product Type
Thermal Overload Relay

Insulation Resistance
More than 100 M at 500 V DC

Theory
Thermal

Usage
Protection of Motors from Overload

Contact Load
Normally 5A at 230V AC

Operate Time
Less than 2 seconds

Terminal Type
Screw Terminal

Rated Voltage
690 V AC

Supply Terminal
Top/Bottom

Size
Standard DIN

Color
Black & White

Dimension (L*W*H)
85 x 45 x 75 mm

Weight
Approx 150 g

Reset Type
Manual & Automatic

Application
Electric Motors, Pumps, Compressors, Industrial Machinery

Auxiliary Contact Rating
AC-15, 2A/230V

Trip Class
Class 10A

Mounting Type
Direct & Base Mount

Frequency
50/60Hz

Current Adjustment Range
Suitable for 2.5 - 4A (typical for image type)

Relative Humidity
Up to 95% (non-condensing)

Degree of Protection
IP20

Over Load Relay Trade Information

Minimum Order Quantity
10 Units

Payment Terms
Cash in Advance (CID)

Supply Ability
5000 Units Per Month

Delivery Time
10 Days

Main Domestic Market
All India

About Over Load Relay

All type of Overload relay supply . Get responses tailored to you Log in to get answers based on savedchats, plus create images and upload files. Log in Overload relay product details Siemens Siemens overload relays are widely used for motor protection against overload, phase failure, and overheating. Their main product families are SIRIUS 3RU (thermal) and SIRIUS 3RB (electronic/solid-state). Below is a clear, practical breakdown with product examples and specs. . 1. Siemens Overload Relay a Overview An overload relay protects motors by disconnecting the circuit when current exceeds safe limits (due to overload, phase loss, etc.). Key functions: Overload protection Phase failure / imbalance protection Thermal protection (motor heating) Manual / auto reset Auxiliary contacts (NO/NC) . 2. Popular Siemens Overload Relay Types a A. Thermal Overload Relay (3RU Series) Used in standard applications with normal starting conditions. Siemens 3RU2116-0BB0 Thermal Overload Relay a 2,477 a c IndustryBuying Typical Features: Adjustable current range (e.g., 1.8 A to 100 A depending on model) Trip class: Class 10 (standard motor protection) Phase failure sensitivity Direct mounting on Siemens contactors (3RT series) Manual/auto reset Example models: 3RU1116 a small motors 3RU1126 / 3RU1136 a medium range 3RU1146 a up to 100 A

Advanced Motor Protection

This direct and base mount overload relay ensures motors and equipment remain protected from potential damage due to excessive current. With its thermal protection feature and quick operating time, the device minimizes downtime and extends the operational life of connected machinery.

Versatile Installation & Operation

The relay is suited for both direct mounting and base mounting, with flexible supply terminals on the top or bottom. It caters to installation in standard DIN rail panels, simplifying integration into new or existing systems. Its manual and automatic reset options provide adaptability for different application requirements.

Engineered for Reliability

Designed to operate efficiently under harsh industrial conditions, this relay features a wide ambient temperature range (from -20C to +60C), robust insulation, strong dielectric strength, and superior contact performance with more than one million mechanical operations.

FAQ's of Over Load Relay:

Q: How does the Over Load Relay protect motors in industrial applications?

A: The Over Load Relay protects motors by monitoring current levels; if the current exceeds the adjustable range (2.5-4A), it interrupts the circuit to prevent overheating and potential motor damage. Its rapid response time (less than 2 seconds) ensures timely protection.

Q: What are the mounting and reset options for this relay?

A: This relay supports both direct and base mounting, allowing flexible installation. It also features manual and automatic reset types, catering to both operator intervention and automatic system recovery after resolving an overload condition.

Q: When should I use this overload relay in my system?

A: Use this relay in any setup that requires reliable protection for electric motors, such as pumps, compressors, or industrial machines, especially when operating within the specified current range of 2.5 to 4A and voltage up to 690 V AC.

Q: Where can this relay be installed in an industrial panel?

A: The relay is designed for standard DIN rail mounting and can be placed where protection for electric motors or machinery is required. Terminals are accessible at the top or bottom for convenient wiring integration.

Q: What process does the relay follow when an overload occurs?

A: Upon detecting current above the preset level, the relay's thermal mechanism activates, breaking the circuit through its contacts and facilitating either a manual or automatic reset once normal conditions return.

Q: How does the relay handle harsh environments?

A: The device is rated for up to 95% non-condensing humidity and functions reliably in temperatures ranging from -20C to +60C, featuring IP20 protection and strong insulation to ensure durability in industrial environments.

Q: What are the main benefits of using this overload relay?

A: Key benefits include fast, reliable motor protection, easy installation, long mechanical life, minimal power consumption, and compatibility with various industrial equipment, providing peace of mind and reduced maintenance costs.

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