MODEL: L53U

L53U SPECIFICATIONS

ES-1958 Rev.13 Page 1/9

https://www.m-system.co.jp/

Power Transducer Series

MULTI POWER TRANSDUCER

Functions & Features

• Measures simultaneously several variables of a heavy-

current power system: current, voltage, active, reactive,

and apparent power, active and reactive energy, power

factor, frequency, etc.

• All measured values, counter values, setting data are

stored in the non-volatile memory at the power off.

• Conversion factors, system configuration, interval times

are programmable.

• Open collector output for alarm or energy count.

Typical Applications

• Multi-functional power measurement in electric device or

in switching boards.

mm (inch)

60 (2.36)

105

(4.13)

120

(4.72)

MODEL: L53U-1[1][2][3]-[4][5]

ORDERING INFORMATION

• Code number: L53U-1[1][2][3]-[4][5]

Specify a code from below for each of [1] through [5].

(e.g. L53U-1211-AD4/H/A/Q)

• Specify the specification for option code /Q

(e.g. /C01/SET)

CONFIGURATION

1: Single-phase / 2-wire and 3-wire,

3-phase / 3-wire and 4-wire

[1] INPUT

1: 480 V / 1 A AC

2: 480 V / 5 A AC

[2] DISCRETE INPUT

0: None

( ‘External Interface’ codes 1, 4 and 5 Not selectable.)

1: 24 V DC

(‘External Interface’ codes 2, 3, 6 and 7 Not selectable.)

2: 110 V DC

(‘External Interface’ codes 2, 3, 6 and 7 Not selectable.)

[3] EXTERNAL INTERFACE

1: Modbus, Do × 1, Di × 1

2: 4 – 20 mA DC × 4

3: 1 – 5 V DC × 4

4: 4 – 20 mA DC × 2, Do × 1, Di × 1

5: 1 – 5 V DC × 2, Do × 1, Di × 1

6: 4 – 20 mA DC × 2, Do × 2

7: 1 – 5 V DC × 2, Do × 2

[4] AUXILIARY POWER SUPPLY

AD4: universal

100 – 240 V AC (Operational range 85 – 264 V, 47 – 66 Hz) /

110 – 240 V DC (Operational range 99 – 264 V,

ripple 10 %p-p max)

R: DC Power

24 V DC (Operational range 19 – 29 V, ripple 10 %p-p max)

(‘External interface’ codes 1, 4, 5, 6 and 7 Not selectable.)

[5] OPTIONS (multiple selections)

Performance

blank: Standard

/H: High accuracy (voltage/current: ±0.2 %, energy: ±0.5 %)

Configurator Software Switch

/A: Without switch (must specify)

Other Options

blank: none

/Q: Option other than the above (specify the specification)

SPECIFICATIONS OF OPTION: Q (multiple selections)

COATING (For the detail, refer to M-System's web site.)

/C01: Silicone coating

/C02: Polyurethane coating

/C03: Rubber coating

EX-FACTORY SETTING

/SET: Preset according to the Ordering Information Sheet

(No. ESU-1958)

RELATED PRODUCTS

• PC configurator software (model: PMCFG)

• PC Recorder Light software for the 53U (model:

MSR128LUx)

Downloadable at M-System’s web site.

A dedicated cable is required to connect the module to the

PC. Please refer to the internet software download site or

the users manual for the PC configurator for applicable

cable types.