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Allen Bradley 1336 PLUS II Drives 1336F-B025-AF-DE

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1336F-B025-AF-DE

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The 1336F-B025-AF-DE drive from Allen Bradley is a variable frequency drive (VFD) known for its robust specifications. It operates within a B-Frame configuration with an IP65 rating, providing solid protection for environments rated NEMA Type 4.

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Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer's warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

Technical specifications for 1336F-B025-AF-DE

ManufacturerAllen Bradley
Product TypeVariable Frequency Drive (VFD)
Product Line1336 PLUS II Drives
Part Number1336F-B025-AF-DE
Weight60.00 lbs (27.22 kg)
Frame & Enclosure DesignationB-Frame, IP 65 (NEMA 4) housing (AF variant)
Continuous Output Power18.5 kW at constant-torque duty
Maximum Variable-Torque Output25 horsepower in variable-torque mode
AC Supply Voltage RangeThree-phase 380–480 VAC, ±10 % tolerance
Nominal DC Bus Voltage648 V DC on the intermediate bus
Input Overvoltage Trip PointTrips at 570 VAC input
Input Undervoltage Trip PointTrips at 280 VAC input
Intermittent Overload Capability150 % of rated output for 1 min in CT mode; 115 % for 1 min in VT mode
Power Ride-Thru DurationRetains operation for 15 ms under full-load line drops
PWM Carrier & Modulation MethodSine-coded PWM with selectable carrier (2–8 kHz on B-Frame; rating based at 4 kHz)
Output Frequency Span0–400 Hz, digitally accurate to ±0.01 % via logic input
Ambient Operating Range (IP 65)0 °C to 40 °C for NEMA 4 enclosures
Fault-Trip ProtectionsPhase-to-ground and phase-to-phase short-circuit detection on the motor output
Standard Control InterfacesContact-closure digital inputs (L4) plus two isolated, fully configurable analog inputs (LA2)
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The Allen Bradley 1336 PLUS II variable frequency drive, part number 1336F-B025-AF-DE, is designed for high-performance applications. This VFD is housed in a B-Frame enclosure rated IP65 (NEMA 4), ensuring strong environmental protection. It handles a continuous output power of 18.5 kW under constant-torque conditions, suitable for industrial demand. In variable-torque operation, the drive achieves a maximum output of 25 horsepower.

This drive operates using a three-phase AC supply voltage range of 380 to 480 VAC, maintaining precise performance within a ±10% tolerance. The intermediate DC bus voltage is rated at 648 V. For safety measures, it includes input overvoltage and undervoltage trip points, which activate at 570 VAC and 280 VAC, respectively, enhancing protection against electrical faults.

The drive is engineered for intermittent overload capability, allowing it to handle 150% of the rated output for one minute under constant torque mode and 115% for one minute in variable torque mode. The power ride-thru duration of 15 ms ensures continuity of operation during brief line drops, crucial for maintaining process integrity.

Utilizing a sine-coded PWM modulation with adjustable carrier frequencies between 2 and 8 kHz, the drive achieves an output frequency range of 0 to 400 Hz. This frequency is digitally controlled with an accuracy of ±0.01% via logic input. Operating within an ambient temperature range of 0 °C to 40 °C, the drive's design meets the temperature requirements for NEMA 4 classifications.

Fault-trip protections are inherent to the system, including detection capabilities for phase-to-ground and phase-to-phase short circuits on the motor output. Standard control interfaces consist of contact-closure digital inputs and two configurable isolated analog inputs, providing flexibility for various control strategies.