Bosch Rexroth HNL01.1E-0200-N0125-A-480-NNNN Mains Choke

Technical Dossier

Product Details And Specifications

Bosch Rexroth HNL01 Series: Comprehensive Module Range and Technical Overview

The Bosch Rexroth HNL01 series comprises mains choke (line reactor) modules engineered for use within the IndraDrive and DIAX04 drive system families. These components are deployed across heavy industrial sectors including petrochemical refining, nuclear power auxiliary systems, offshore platform drives, and large-scale steel mill automation. The HNL01 series functions as a current-limiting impedance element inserted between the AC mains supply and the drive rectifier stage, reducing harmonic distortion (THD) on the supply network, suppressing voltage transients, and protecting the DC bus capacitor bank from high-frequency switching noise. Installed base spans several thousand units globally across facilities operating 24/7 continuous-duty cycles, making long-term spare parts availability a critical operational requirement.

The Evolution of HNL01 Architecture

The HNL01 series was introduced as part of Bosch Rexroth's second-generation IndraDrive infrastructure, succeeding the earlier HNF01 mains filter modules which combined EMC filtering and choke functions in a single housing. The HNL01 design separates the choke function into a dedicated module, allowing system integrators to select choke inductance and current rating independently of the EMC filter specification. Early HNL01 variants (suffix -A-480) were rated for 480 V AC three-phase mains and used laminated silicon-steel core construction. Later variants introduced optimized winding geometry to reduce copper losses at partial load, relevant for variable-speed pump and fan applications where the drive operates below rated current for extended periods. The HNL01 series is compatible with IndraDrive C (HCS), IndraDrive M (HMS/HMD), and DIAX04 (HDS) drive controllers when correctly matched by current rating. Compatibility with successor IndraDrive Mi (KSM/KMS) requires an intermediate HNF01 filter stage. As of 2024, the HNL01 series is classified by Bosch Rexroth as a mature product line with no planned hardware revisions; replacement procurement and lifecycle extension support are the primary supply chain activities.

HNL01 Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly stocked HNL01 series part numbers. Each entry includes the rated output current and primary application context.

HNL01.1E-0050-N0012-A-480-NNNN: 3-phase mains choke, 50 A rated, 12 µH inductance, 480 V AC, standard IndraDrive C entry-level pairing.
HNL01.1E-0070-N0012-A-480-NNNN: 3-phase mains choke, 70 A rated, 12 µH inductance, 480 V AC, mid-range HCS02 drive pairing.
HNL01.1E-0100-N0008-A-480-NNNN: 3-phase mains choke, 100 A rated, 8 µH inductance, 480 V AC, HCS03 and HMS01 supply section pairing.
HNL01.1E-0150-N0006-A-480-NNNN: 3-phase mains choke, 150 A rated, 6 µH inductance, 480 V AC, high-power HMS02 multi-axis supply.
HNL01.1E-0200-N0125-A-480-NNNN: 3-phase mains choke, 200 A rated, 1.25 µH inductance, 480 V AC, heavy-duty supply section for large IndraDrive M systems — the reference SKU for this listing.
HNL01.1E-0250-N0004-A-480-NNNN: 3-phase mains choke, 250 A rated, 4 µH inductance, 480 V AC, large-frame HMS02 or parallel HCS supply configurations.
HNL01.1E-0300-N0003-A-480-NNNN: 3-phase mains choke, 300 A rated, 3 µH inductance, 480 V AC, high-current bus supply for multi-drive cabinets.
HNL01.1E-0400-N0002-A-480-NNNN: 3-phase mains choke, 400 A rated, 2 µH inductance, 480 V AC, central supply for large-scale coordinated axis systems.
HNL01.1E-0500-N0002-A-480-NNNN: 3-phase mains choke, 500 A rated, 2 µH inductance, 480 V AC, plant-level drive bus supply in steel and paper mill applications.
HNL01.1E-0050-N0012-A-400-NNNN: 3-phase mains choke, 50 A rated, 12 µH inductance, 400 V AC variant, European mains standard.
HNL01.1E-0070-N0012-A-400-NNNN: 3-phase mains choke, 70 A rated, 12 µH inductance, 400 V AC, European HCS02 pairing.
HNL01.1E-0100-N0008-A-400-NNNN: 3-phase mains choke, 100 A rated, 8 µH inductance, 400 V AC, HMS01 supply section, European installations.
HNL01.1E-0150-N0006-A-400-NNNN: 3-phase mains choke, 150 A rated, 6 µH inductance, 400 V AC, high-power European multi-axis supply.
HNL01.1E-0200-N0125-A-400-NNNN: 3-phase mains choke, 200 A rated, 1.25 µH inductance, 400 V AC, heavy-duty European supply section.
HNL01.1E-0300-N0003-A-400-NNNN: 3-phase mains choke, 300 A rated, 3 µH inductance, 400 V AC, large-frame European drive cabinet supply.
HNL01.1E-0400-N0002-A-400-NNNN: 3-phase mains choke, 400 A rated, 2 µH inductance, 400 V AC, central bus supply for European multi-drive systems.

Quality Control for the HNL01 Range

HNL01 mains choke modules are passive inductive components; failure modes are limited but consequential. DriveKNMS applies the following test protocol to all HNL01 units prior to dispatch: (1) DC winding resistance measurement on all three phases using a four-wire Kelvin bridge, compared against factory reference values to detect shorted turns or open-circuit conditions; (2) inductance measurement at 1 kHz using an LCR meter to verify inductance value is within ±10% of nameplate specification; (3) insulation resistance test at 500 V DC between each winding and the core/frame, minimum acceptance threshold 100 MΩ; (4) visual inspection of core lamination stack for signs of thermal damage, resin cracking, or mechanical deformation from overcurrent events; (5) terminal torque verification to confirm connection integrity. Units that pass all five stages are tagged with a DriveKNMS QC serial number and shipped with a test record. Units that fail any stage are quarantined and not offered for sale.

For procurement inquiries, technical cross-reference requests, or bulk order quotations for HNL01 series modules: