Heavy Duty Limit Switch with Roller Plunger, NO+NC

Name: Heavy Duty Limit Switch with Roller Plunger, NO+NC
Brand: Such.com
SKU: SUCH-LMS-MR441
Price: 198.95 USD
Availability: InStock
Rating: 5.0 (1 reviews)

1 review(s) | Add your review

SKU: SUCH-LMS-MR441

$198.95

● Contact type NO+NC ● Maximum operating speed 0.5m/s ● Rated insulation voltage 250VAC ● Protection class IP65

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Overview
Specs
Application
FAQ
Reviews

Overview

SUCH heavy-duty limit switch features a roller plunger actuator and supports both normally open (NO) and normally closed (NC) contacts, providing flexible use in control systems. Heavy-duty limit switch operates at speeds up to 0.5 m/s with a minimum drive speed of 1 mm/min, and has a rated insulation voltage of 250 VAC. With an IP65 protection rating, it is resistant to dust and water, and its wide ambient temperature range of -40°C to +200°C allows it to perform reliably under many conditions.

Feature

Roller plunger design for smooth and reliable actuation.
NO + NC contact configuration for flexible control applications.
Rugged construction with resistance to dust, water, and many conditions.

Dimension (Unit: mm)

Heavy duty limit switch dimension

Specs

Operating Principle	Mechanical
Housing Material	Gray cast iron, galvanized
Contact Material	Silver
Total Weight	1,510g
Number of Normally Closed (NC)	1
Number of Normally Open (NO)	1
Actuator	Roller plunger
Drum Material	Brass
Mechanical Life	5,000,000 cycles
Action Angle (from left side of switch shaft)	30°
Action Angle (from right side of switch shaft)	30°
Open Contact	2×2.5mm
Minimum Drive Speed	1mm/min
Maximum Operating Speed	0.5m/s
Note	Action speed: Drive speed of the vertical drive angle switching axis
Circuit Connection	Screw connection M20 x 1.5
Minimum Cable Cross-Section	1.5mm²
Maximum Cable Cross-Section	2.5mm²
Note	Cable portion: Includes conductor loops
Wire Cross-Section	13AWG
Product Dimensions
Length, Width, Height	63mm106mm145mm
Cast Width	6.5mm
Cast Diameter	25mm
Application Environment Conditions
Protection Class	IP65
Ambient Temperature	-40....+200°C
Rated Insulation Voltage	250VAC
Rated Impulse Withstand Voltage	4kV
Electrical Data
Thermal Test Current	16A
Application Category	AC-15:250 V/ 4A
Switching Element	Normally open contact, normally closed contact
Switching Principle	Fast action
Maximum Bounce Duration	5 ms
Maximum Switching Time	35 ms

Application

Port Crane

Conveying System

Mining Equipment

FAQ

Q1: What is the function of a limit switch? ❯

A limit switch is used to detect the position or movement of mechanical parts and trigger control actions such as stopping, starting, or reversing equipment.

Q2: What does NO + NC mean? ❯

NO (Normally Open) and NC (Normally Closed) refer to the contact types, allowing the switch to support different circuit configurations for greater flexibility.

Q3: Where can this type of switch be used? ❯

It is commonly used in machinery, automation systems, conveyor equipment, and safety control circuits.

1 review(s)

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From: Thomas Bradley | Date: 6/10/2026 9:55 AM

Solid heavy duty limit switch for cargo conveyor gates

Swapped in this heavy duty limit switch during a terminal expansion project last month. The internal wiring block has plenty of room to route thick 14 gauge wires without pinching anything. Having that IP65 rating is huge out here with all the loose dust and washdown spray. The spring return action feels very snappy.

Heavy Duty Limit Switch with Roller Plunger, NO+NC

Feature

Dimension (Unit: mm)

Port Crane

Conveying System

Mining Equipment

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