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MELSERVO-J4VERIFIED CATALOGUE REFERENCE

Mitsubishi Electric MR-J4-70B 0.75 kW SSCNET III/H Servo Amplifier

Mitsubishi Electric MR-J4-70B is a 0.75 kW MELSERVO-J4 servo amplifier for 200 V-class systems using the SSCNET III/H command interface. It supports 3-phase or 1-phase 200 to 240 VAC main power, sine-wave PWM current control, built-in dynamic braking, USB setup with MR Configurator2, two analog monitor channels and STO safety functionality.

MANUFACTURERMitsubishi Electric
MODEL / MPNMR-J4-70B
PRODUCT FAMILYMELSERVO-J4
MANUFACTURER STATUSCatalogue reference · confirm availability
Technical identity verified; commercial facts deliberately withheld

No price, stock, condition, authenticity or authorised-distributor claim is published on this sample.

LOGISTICS SNAPSHOT
Product-only shipping inputs
NET DIMENSIONSConfirm with quote
NET WEIGHTConfirm with quote
UNIT ENVELOPE VOLUMEConfirm with quote
PACKED SHIPMENTConfirm with quote

Manufacturer dimensions are shown where verified. Missing net weight, total lever envelope, carton size and gross weight stay marked for confirmation before freight quotation.

Quotation
Human reviewed
Availability
Confirmed per enquiry
Documents
Official source linked
VERIFIED HIGHLIGHTS

MR-J4-70B verified product highlights

Facts below are based on Mitsubishi Electric manufacturer documentation, not promotional text embedded in supplied artwork.

01

SSCNET III/H network control

The B-interface amplifier uses Mitsubishi Electric SSCNET III/H for high-speed servo-system communication.

02

0.75 kW 200 V class

MR-J4-70B is the 0.75 kW model for 200 V-class applications with 5.8 A rated output current.

03

Advanced tuning functions

One-touch tuning, adaptive filtering and advanced vibration suppression control II support machine commissioning.

04

Integrated diagnostics

Drive recorder, machine diagnosis, power monitoring and USB connection to MR Configurator2 aid setup and maintenance.

05

STO safety function

The amplifier includes an STO sub-function specified to IEC/EN 61800-5-2; the final machine safety design must follow the official manual.

TECHNICAL DATA

MR-J4-70B specifications

型号身份

Model identity

Exact model identity, manufacturer series and catalogue classification.

Model
MR-J4-70B
Series
MELSERVO-J4
Product type
AC servo amplifier
Structure
Force-cooled open type, IP20
技术参数

Technical parameters

Primary electrical, performance and compatibility parameters.

Rated capacity
0.75 kW
Rated output voltage
3-phase 170 VAC
Rated output current
5.8 A
Main circuit power input
3-phase or 1-phase 200 to 240 VAC, 50/60 Hz
Main circuit rated input current
3.8 A with 3-phase input
Permissible main input voltage
3-phase or 1-phase 170 to 264 VAC
Control circuit input
1-phase 200 to 240 VAC, 50/60 Hz
Control method
Sine-wave PWM control and current control
Built-in regenerative resistor capacity
20 W
Analog monitor
2 channels
Operating temperature
0 to +55 deg C, non-freezing
Operating and storage humidity
5 to 90% RH, non-condensing
接口与兼容

Interface & compatibility

Connection, communication and supported system notes.

Command interface
SSCNET III/H
Interface power supply
24 VDC +/-10%, 0.3 A required including CN8 signals
Command communication cycle
0.222 ms, 0.444 ms or 0.888 ms
Setup communication
USB for MR Configurator2-compatible computer
机械与安装

Mechanical & installation

Dimensions, weight, mounting and enclosure information.

Safety sub-function
STO according to IEC/EN 61800-5-2
Dimensions
60 x 168 x 185 mm (W x H x D)
Mass
1.4 kg
环境条件

Operating environment

Temperature, humidity and protection ratings.

Storage temperature
-20 to +65 deg C, non-freezing
Vibration resistance
5.9 m/s2 at 10 to 55 Hz in X, Y and Z axes
其它资料

Additional notes

Additional source-backed notes and quote-confirmed fields.

Manufacturer
Mitsubishi Electric
Power class
200 V AC
Control circuit power consumption
30 W
Dynamic brake
Built in
Altitude
2000 m max., subject to manufacturer restrictions above 1000 m

Model-specific parameter checklist

These are the fields OMK checks for this product type before a formal quotation or replacement recommendation.

Rated input / outputPublished abovePower classPublished aboveControl modeConfirm before quoteCompatible motor or drive familyConfirm before quoteFeedback / encoder interfaceConfirm before quoteBraking, safety and installation notesConfirm before quote

Always confirm the current manual revision and installation requirements before engineering or purchasing decisions.

TYPICAL APPLICATION AREAS

Typical application areas for MR-J4-70B

Application fit depends on the complete machine risk assessment, wiring, environmental conditions and the latest manufacturer documentation.

  • SSCNET III/H motion systems using compatible Mitsubishi Electric servo motors
  • Packaging, handling and assembly machinery requiring 0.75 kW servo control
  • High-response positioning systems with vibration-suppression tuning
  • Exact-model maintenance replacement for an installed MR-J4-70B amplifier
MODEL-SPECIFIC RFQ

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