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L&T MN 140 DOL STARTER

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L&T MN 140 DOL STARTER Specification

Overheating Protection
Built-in Thermal Overload Relay

Mounting Type
Wall Mounted

Humidity %
Up to 95% RH (Non-Condensing)

Operating Temperature
-5C to +55C

Power Factor
0.95

Insulation Material
Thermoset Moulded

Efficiency
High

Connector Type
Cable Lug

Shape
Rectangular

Surface Finish
Powder Coated

Feature
Thermal Overload Relay, Heavy Duty Contacts, High Breaking Capacity

IP Rating
IP20

Product Type
Direct-On-Line (DOL) Starter

Application
Motor Starter (up to 7.5 HP)

Protection Level
Motor Overload & Short Circuit Protection

Frequency (MHz)
50 Hz

Rated Voltage
415 V AC

Energy Consumption
Low

Output Type
AC

Color
Off White

Dimension (L*W*H)
225 x 125 x 175 mm

Weight
2.3 kg

Input Voltage
415 V

Size
Standard

Phase
Three Phase

Connection Type
Screw Terminal

No Of Poles
3 Poles

Material
Metal & Plastic (Enclosure: Sheet Metal, Contact: Silver Alloy)

Auxiliary Contact Block
1 N/O + 1 N/C

Rated Current Range
9-14A (adjustable)

Operating Mode
Manual Reset

Enclosure Type
Dust & Vermin Proof

Applications
Suitable for Agriculture Pumps, Industrial Motors, Compressors, Blowers

Electrical Life
Up to 500,000 Operations

Mechanical Life
Over 1 Million Operations

Coil Voltage
415V (Standard), available variants: 230V AC

L&T MN 140 DOL STARTER Trade Information

Payment Terms
Cash in Advance (CID)

Sample Available
Yes

Main Export Market(s)
Asia

Main Domestic Market
All India

About L&T MN 140 DOL STARTER

A DOL starter (also known as a direct on line starter or across the line starter) is a method of starting a 3 phase induction motor. In a DOL Starter, an induction motor is connected directly across its 3-phase supply, and the DOL starter applies the full line voltage to the motor terminals.

Advanced Motor Protection

The L&T MN 140 starter provides comprehensive protection against overloads and short circuits with its integrated thermal overload relay. This enhances the lifespan and reliability of motors used in demanding applications such as industrial machines, pumps, and compressors.

Durable Design & High Performance

With a mechanical life exceeding one million operations and an electrical life up to 500,000 operations, the MN 140 starter ensures dependable, long-term service. The powder-coated metal enclosure, silver alloy contacts, and IP20 rating offer robust operation in challenging environments.

Flexible Installation and Usage

Supporting wall-mounted installation, standard size dimensions, and screw terminal connections, this starter is suitable for a wide range of setups. Available in multiple coil voltage options and engineered for efficient energy consumption, it is tailored for versatile industrial and agricultural needs.

FAQ's of L&T MN 140 DOL STARTER:

Q: How does the thermal overload relay benefit motor protection in the L&T MN 140 DOL Starter?

A: The built-in thermal overload relay safeguards motors by automatically disconnecting the power in case of excessive current, reducing the risk of overheating and extending the motor's operational life.

Q: What types of motors and applications is this starter suitable for?

A: This starter is ideal for three-phase motors up to 7.5 HP, commonly used in agriculture pumps, industrial compressors, blowers, and various machinery requiring reliable initiation and protection.

Q: When should the manual reset feature be used on this starter?

A: The manual reset feature should be activated after a fault or overload event to restore normal operation, ensuring the starter only resumes function once conditions have returned to safe levels.

Q: Where can the L&T MN 140 DOL Starter be installed?

A: The device is designed for wall-mounted installations, thanks to its robust dust and vermin-proof enclosure and compact dimensions, allowing flexible placement in industrial and agricultural settings.

Q: What is the process for adjusting the rated current range?

A: The starter allows easy adjustment of the rated current within the 9-14A range, typically done via a dial or setting on the thermal overload relay to match the motor's specifications.

Q: How do the material and design features add value to users?

A: Metal and plastic construction, high-quality silver alloy contacts, and powder-coated finish provide durability, corrosion resistance, and reliable electrical performance, essential for heavy-duty use.

Q: What are the key benefits of choosing the L&T MN 140 DOL Starter?

A: Users benefit from high efficiency, low energy consumption, motor protection features, versatile coil voltages, and durable construction-ideal for demanding applications where reliability and safety are paramount.

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