Allen-Bradley 1336F-BRF100-AA-EN Fail-Safe VFD Drive

Overview

Allen-Bradley 1336F-BRF100-AA-EN Fail-Safe VFD Drive for Critical Industrial Control Reliability

The Allen-Bradley 1336F-BRF100-AA-EN is a 100HP AC variable frequency drive from Rockwell Automation’s proven 1336 FORCE series, engineered for demanding industrial environments where control interruption is not an option. Designed to deliver fail-safe motor speed regulation across continuous production lines, heavy-duty control cabinets, and safety-critical automation loops, this drive combines robust power electronics with EtherNet/IP connectivity to ensure reliable, uninterrupted operation in petrochemical, mining, power generation, metallurgical, and water treatment facilities.

In high-stakes industrial sites, a single drive failure can cascade into unplanned downtime, process safety incidents, or costly equipment damage. The 1336F-BRF100-AA-EN addresses these risks through its hardened architecture: built-in surge suppression protects against voltage transients and power fluctuations common in heavy industrial power systems, while its thermal management design sustains stable output even in high-temperature, high-vibration enclosures. The drive’s advanced fault detection logic continuously monitors motor load, phase balance, and bus voltage, triggering controlled safe-state responses before a fault can propagate to connected machinery or safety interlocks.

For facilities running Allen-Bradley PowerFlex 700 drives or 1336 IMPACT series units in parallel motor control centers, the 1336F-BRF100-AA-EN integrates seamlessly into existing Rockwell Automation architectures. Its EtherNet/IP port enables direct communication with Allen-Bradley ControlLogix 1756 PLCs and CompactLogix 1769 controllers, supporting real-time diagnostics, remote parameter adjustment, and coordinated safety interlock logic without additional protocol gateways. This native integration reduces communication latency and eliminates signal conversion errors that can cause nuisance trips or missed safety events in critical loops.

In control cabinet environments with high electromagnetic interference — such as those housing Allen-Bradley 1492 series terminal blocks, relay output modules, and high-current contactors — the 1336F-BRF100-AA-EN’s shielded design and EMI filtering maintain signal integrity across analog speed references and digital I/O. This is particularly important in dusty, humid, or chemically aggressive atmospheres where signal drift and insulation degradation are primary failure modes. The drive’s IP-rated enclosure compatibility and conformal coating options further extend service life in coastal, offshore, and process-intensive installations.

Spare parts availability and rapid replacement support are essential for any critical site maintenance strategy. KNMKS maintains verified stock of the 1336F-BRF100-AA-EN alongside complementary components including Allen-Bradley 1336-MOD-D2 option modules and compatible 1321 series line reactors, enabling complete drive system restoration without extended lead times. Every unit shipped undergoes pre-delivery functional testing covering output voltage balance, communication link verification, and protective relay response — ensuring the drive arrives ready for immediate commissioning or standby inventory.

Fail-Safe Reliability Table

Control Cabinet Protection Strategy

A reliable motor control cabinet built around the 1336F-BRF100-AA-EN requires a layered protection approach. Upstream, a properly sized Allen-Bradley 1321 line reactor reduces harmonic distortion and protects the drive’s input rectifier from voltage notching caused by other high-power loads sharing the same bus — a common issue in multi-drive panels serving compressors, pumps, and conveyors simultaneously. On the output side, a 1321 dV/dt output filter limits the rate of voltage rise to motor terminals, protecting motor winding insulation in long-cable installations typical of mining headframes or offshore pump stations.

For cabinet-level power quality, pairing the drive with an Allen-Bradley 1606 series power supply for control circuit loads ensures that PLC logic, HMI panels, and safety relay modules maintain stable 24VDC even during input voltage sags. This prevents nuisance controller resets that can trigger unsafe motor coast-to-stop conditions in processes requiring controlled deceleration. The drive’s EtherNet/IP port connects directly to the ControlLogix 1756-EN2T Ethernet module, enabling the PLC to monitor drive fault codes, output current, and thermal status in real time — allowing maintenance teams to act on early warning indicators before a trip occurs.

In cabinets with high relay switching activity, Allen-Bradley 700 series control relays with RC suppression modules are recommended adjacent to the drive’s digital I/O wiring to prevent inductive kickback from coupling into speed reference signals. This is especially critical in cement, steel, and chemical plants where relay-intensive safety circuits and VFD control wiring share common cable trays.

Critical Industrial Safety Applications

Petrochemical & Refinery: The 1336F-BRF100-AA-EN controls cooling water pumps, compressor auxiliaries, and blower systems in hazardous-area-adjacent control rooms. Its controlled deceleration and fault-safe coast inhibit functions prevent pressure surge events during emergency shutdowns, protecting piping integrity and personnel safety.

Power Generation & Utilities: In coal handling, ash conveying, and cooling tower fan applications, the drive’s robust overcurrent and phase-loss protection prevents motor burnout during grid disturbances. EtherNet/IP integration with plant DCS systems enables coordinated load shedding during grid frequency events.

Mining & Mineral Processing: Conveyor belt drives, crusher auxiliaries, and slurry pump systems in underground and open-cut mines demand drives that tolerate high ambient dust, vibration, and frequent start-stop cycles. The 1336F-BRF100-AA-EN’s sensorless vector control maintains precise torque at low speeds, preventing belt slip and material spillage during loaded starts.

Water & Wastewater Treatment: Pump station VFDs must operate continuously with minimal intervention. The drive’s sleep/wake function and PID process control capability allow it to manage variable-speed pump duty cycles autonomously, reducing energy consumption while maintaining system pressure within safe operating bands.

Metallurgy & Steel: Rolling mill auxiliary drives, fume extraction fans, and hydraulic pump motors in steel plants operate in extreme thermal and electromagnetic environments. The drive’s thermal model protection and adjustable carrier frequency allow it to be tuned for low-noise operation without sacrificing thermal headroom in high-ambient enclosures.

Port & Marine: Crane hoist auxiliaries, ballast pump drives, and mooring winch controls in port and shipboard applications require drives with robust braking capability and tolerance for generator-sourced power with variable frequency. The 1336F-BRF100-AA-EN’s dynamic braking interface supports external braking resistor connection for controlled load lowering and emergency stop compliance.

Safety and Quality FAQ

Q1: What does the support terms confirmed by quotation cover?
The support terms confirmed by quotation cover all manufacturing defects and functional failures under normal industrial operating conditions from the date of shipment. This includes power board failures, communication module faults, and control card defects. Physical damage from improper installation or overvoltage events beyond rated specifications is excluded. KNMKS provides direct replacement or repair support within the confirmed support period.

Q2: What pre-shipment testing is performed on each unit?
Every 1336F-BRF100-AA-EN undergoes a full functional test before dispatch: output phase voltage balance verification, EtherNet/IP communication link confirmation, protective relay response testing (overcurrent, overvoltage, overtemperature), and parameter default verification. A test record is available upon request for quality documentation purposes.

Q3: Is this drive compatible with existing Allen-Bradley ControlLogix and CompactLogix systems?
Yes. The EN suffix confirms factory-installed EtherNet/IP communication, which is natively supported by ControlLogix 1756 and CompactLogix 1769 platforms using standard Rockwell Automation Add-On Profiles (AOPs). No additional communication adapters or protocol converters are required for integration into existing Studio 5000 or RSLogix 5000 projects.

Q4: Can KNMKS support long-term supply for maintenance and spare parts programs?
Yes. KNMKS maintains ongoing stock of the 1336F-BRF100-AA-EN and related 1336 FORCE series components to support planned maintenance schedules, critical spare inventories, and emergency replacement requirements. For facilities with multi-unit installations, volume reservation and scheduled delivery programs are available. Contact admin@knmks.com for supply continuity planning.

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Product Identification

Brand / Ecosystem

Allen-Bradley
Allen-Bradley

Model / Series

1336F-BRF100-AA-EN

Product Family

Variable Frequency Drives

Availability Status

Available on request after model and quantity confirmation

Inquiry Type

B2B RFQ, replacement inquiry and project spare-part request

Pre-Quote Check

Exact SKU, brand, series, quantity, nameplate photos and destination country are checked before quotation

Specification & Inquiry Focus

Drive range

AC drives, VFDs and accessories

Common needs

Voltage, kW/HP and load type

Project support

Motor control, energy saving and spares

Inquiry Support

• Input/output voltage and kW/HP confirmation
• Energy-saving motor control inquiry
• Accessory and spare-unit support

What to Send Us

• Brand and exact model number: Allen-Bradley 1336F-BRF100-AA-EN
• Quantity and required delivery time
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