
The HF-KP43K is an AC brushless rotary servo motor from Mitsubishi Electric's MELSERVO J3 series, featuring a keyed shaft and built-in 18-bit absolute position encoder with 262,144 pulses per revolution. This low-inertia, small-capacity servo motor is designed for general industrial equipment applications including belt drives and textile machinery. It delivers 400W rated output at 3000 rpm with natural cooling in a fully enclosed IP65-rated housing. The motor achieves high-speed rotation capability up to 6000 rpm and features self-cooling design with Class B insulation. Compatible with MR-J3 series servo amplifiers, it provides precise positioning and speed control for compact, high-performance automation systems. The motor includes radial and thrust load capacity for shaft-mounted applications and operates in ambient temperatures from 0 to 40°C.
Item Details
- Brand Name: Mitsubishi
- Manufacturer: Mitsubishi Electric
- Item Type Name: AC Brushless Servo Motor
- Product Family / Series: MELSERVO J3 Series
- Series: HF-KP
- Shaft Type: Keyed shaft
- Encoder Type: Absolute position encoder (18-bit)
- Cooling Method: Natural cooling, self-cooling
Product Specifications
- rated_output_power: 400 W
- rated_speed: 3000 rpm
- maximum_speed: 6000 rpm
- permissible_instantaneous_speed: 6900 rpm
- rated_current: 2.7 A
- maximum_current: 8.1 A
- rated_torque: 1.3 Nm
- maximum_torque: 3.8 Nm
- moment_of_inertia: 0.42 x 10⁻⁴ kgm²
- encoder_resolution: 262144 pulses/rev
- supply_voltage: 200 VAC class
- frequency: 50/60 Hz
- radial_load_capacity: 245 N
- thrust_load_capacity: 98 N
- vibration_resistance: 49 m/s² (X and Y direction)
- ip_rating: IP65
- insulation_class: Class B (130°C)
Additional Details
- Lifecycle Status: Discontinued
- Compatible Amplifiers: MR-J3-40A1, MR-J3-40B1, MR-J3-20A, MR-J3-20B, MR-J3-20B-RJ006, MR-J3-20T
- Operating Temperature: 0 to 40°C (non-freezing)
- Storage Temperature: -15 to 70°C (non-freezing)
- Operating Humidity: 80% RH max (non-condensing)
- Storage Humidity: 90% RH max (non-condensing)
- Environment: Indoor use only, away from dust, dirt, corrosive gas, combustible gas, oil mist
- Altitude Rating: Up to 1000 meters above sea level
- Mounting Orientation: Horizontal or vertical
Measurements
- Weight: 1.5 kg
- Mounting Flange: 250 mm x 250 mm x 12 mm
All PLC Direct products come with a 1-year warranty. The warranty is issued by PLC Direct. Warranty coverage commences at the date of purchase. The warranty is for mechanical defects or failures not caused by human factors including but not limited to (a) incorrect installation, (b) operating the unit in sub-optimal conditions or in scenarios not recommended by the manufacturer, (c) poor unit maintenance, etc. The warranty does not cover programming or software related issues.
If the product is eligible for PLC Direct’s warranty coverage and the customer encounters an issue with the product, we will request the item is shipped to us for diagnosis and examination. Regardless of the cause of product issues, the customer will bear responsibility for the cost of shipping the unit to PLC Direct for evaluation. Where the unit was damaged by human factors, we will offer a repair or replace quote; in cases where damage was caused by human factors, the customer is responsible for the cost of shipping the repaired/replaced unit from PLC Direct to the customer. Where the unit was not damaged by human factors but is covered by PLC Direct’s warranty, we will repair or replace the unit at our cost (or, in rare cases, refund you your purchase); in such cases, PLC Direct will bear the cost of shipping the repaired or replaced product back to the customer. It is up to PLC Direct’s discretion whether to repair, replace, or refund the customer in such cases. Diagnoses can take time to complete based on technician availability and the complexity of diagnosis.
In no event shall PLC Direct be liable for any damages except actual damages up to, but not exceeding, the amount paid to us for the product, including we shall not be liable for any consequential or indirect damages or lost profits whether or not advised of same.
PLC Direct offers free shipping worldwide. Product ship from a various warehouses worldwide based on the customer's and the product's location. The estimated delivery date on the product page is PLC Direct's best estimated assuming a US-based shipping destination.
Regardless of where the product is shipping from, PLC Direct covers all duties for US-based shipping destinations. For non-US-based shipping destinations, customers are responsible for duties as appropriate.
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