Mitsubishi Electric LX28

Technical specifications

Manufacturer

Mitsubishi Electric

Manufacturer part no.

LX28

Type

Digital input module

Application

I/O module

Used with

MELSEC-L CPU modules

Input type

AC input

Number of input points

8 points

Rated input voltage, frequency

100...240 V AC (+10/-15 %), 50/60 Hz (±3 Hz)

Input voltage distortion

Within 5 %

Rated input current

16.4 mA (200 V AC, 60 Hz); 13.7 mA (200 V AC, 50 Hz); 8.2 mA (100 V AC, 60 Hz); 6.8 mA (100 V AC, 50 Hz)

Inrush current

Maximum 950 mA, within 1 ms

ON voltage/ON current

80 V AC or more/5 mA or more (50 Hz, 60 Hz)

OFF voltage/OFF current

30 V AC or less/1.7 mA or less (50 Hz, 60 Hz)

Input impedance

12.2 kΩ (60 Hz), 14.6 kΩ (50 Hz)

Input response time, OFF to ON

15 ms or less (100 V AC 50 Hz, 60 Hz); 10 ms or less (200 V AC 50 Hz, 60 Hz)

Input response time, ON to OFF

20 ms or less (100/200 V AC, 50 Hz, 60 Hz)

Input common terminal arrangement

8 points/common

Dielectric withstand voltage

2300 V AC/minute (altitude 2000 m)

Insulation resistance

10 MΩ or higher by insulation resistance tester

Protection degree

IP1X

External interface,

18-point terminal block (M3 screw)

Number of occupied I/O points

16 points (I/O assignment: Input 16 points)

Internal current consumption (5 V DC)

80 mA (TYP. all points ON)

External dimensions, Height

90 mm

External dimensions, Width

28.5 mm

External dimensions, Depth

117 mm

Weight

0.15 kg

General specifications

Refer to the general specifications of the CPU module or remote head module.

Technical documents (1)

• Mitsubishi Electric specification database, LX28

Key features

• Input type: AC input
• Number of input points: 8 points
• Rated input voltage, frequency: 100...240 V AC (+10/-15 %), 50/60 Hz (±3 Hz)
• Input voltage distortion: Within 5 %
• Inrush current: Maximum 950 mA, within 1 ms

About the Mitsubishi Electric LX28

The Mitsubishi Electric LX28 is a MELSEC-L input module. Mitsubishi Electric's overview: AC input: 8 points, 100...240 V AC 16.4 mA (200 V AC, 60 Hz)/13.7 mA (200 V AC, 50 Hz)/8.2 mA (100 V AC, 60 Hz)/6.8 mA (100 V AC, 50 Hz), response time: 20 ms, 8 points/common, 18-point terminal block. Mitsubishi Electric lists it as discontinued since 2024/09, with repair support until 2031/09.

What is the LX28 used for?

The LX28 joins a MELSEC-L system beside the CPU, with no base unit, and connects field signals to it.

Lifecycle and successor

Discontinued.

Before you order

What to photograph or confirm so the right unit is quoted.

Check the model name LX28 on the rating plate, with the serial number and function version. Send us a photo of the rating plate and we will confirm the details before quoting.