{"product_id":"mitsubishi-electric-mr-j3-40a1-servo-amplifier","title":"Mitsubishi Electric MR-J3-40A1 Servo Amplifier","description":"\u003cdiv\u003e\u003cp\u003eThe Mitsubishi Electric MR-J3-40A1 servo amplifier is a 0.4 kW drive in the MELSERVO-J3 family that precisely controls speed, torque, and position of servo motors in automated machinery. Widely used in CNC machines, robotics, packaging equipment, pick-and-place systems, semiconductor equipment, and automated production lines, it supports maintenance teams and system integrators with repairs, retrofits, and replacements of legacy servo amplifiers. Key specs include 1-phase 100 VAC input (A1 variant), Sinusoidal PWM \/ current control, built-in dynamic brake and regenerative resistor (model dependent), encoder feedback up to 262,144 pulses per revolution, USB and RS-422\/485 communications, and control modes for position, speed, and torque; protections for overcurrent, overvoltage, overload, encoder fault, and overspeed; operating temperature 0–55°C; cooling by fan or natural cooling depending on configuration; panel-mount design; weight approx. 2 lb. Common replacements include MR-J4-40A, MR-JE-40A, and MR-J3-40A.\u003c\/p\u003e\u003c\/div\u003e","brand":"Mitsubishi","offers":[{"title":"New","offer_id":50558421762350,"sku":"New","price":798.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/images_5_aa11c5e7-9ca9-4d6d-82b7-a96fb2b60fd2.jpg?v=1751952567","url":"https:\/\/plgautomation.com\/products\/mitsubishi-electric-mr-j3-40a1-servo-amplifier","provider":"PLG Automation ","version":"1.0","type":"link"}