Here are some key features and specifications of the MR-J4-40B servo motor:

Power (Rated): 400 W

Power Supply Voltage: Single-phase 200-230 VAC ±10%

Rated Speed: 3000 rpm

Encoder Resolution: 131,072 pulses/revolution (20-bit)

Motor Frame Size: 40 mm

Maximum Torque: 1.27 Nm

Maximum Speed: 5000 rpm

Inertia Ratio: Adjustable from 1:1 to 1:2500

Communication Interface: SSCNET III/H

Protection Level: IP67 (dustproof and waterproof)

Mitsubishi Servo Motor 

MR-J4-10A  
MR-J4-10B 
HG-KR053 HG-KR13 
HG-KM053 HG-KM13   
MR-J4-20A   
MR-J4-20B  
HG-KR23  
HG-KM23  
MR-J4-40A 
MR-J4-40B 
HG-KR43  
HG-KM43  
MR-J4-60A   
MR-J4-60B 
HG-SR51（B）J 
HG-SR52（B）J 
MR-J4-70A 
MR-J4-70B 
HG-KR73（B）J 
HG-MR73（B）J 
MR-J4-100A   
MR-J4-100B 
HG-SR81（B）J 
HG-SR102（B）J 
MR-J4-200A 
MR-J4-200B 
HG-SR121（B）J 
HG-SR201（B）J 
HG-SR152（B）J 
HG-SR202（B）J 
MR-J4-350A 
MR-J4-350B 
HG-SR301（B）J 
HG-SR352（B）J 
MR-J4-500A   
MR-J4-500B 
HG-SR421（B）J 
HG-SR502（B）J 
MR-J4-700A 
MR-J4-700B 
HG-SR702（B）J