Zero-emission operation
Electric traction supports operation without local exhaust emissions, helping compact and medium-sized machines work in noise- and emission-sensitive environments.
ZF eTRAC
ZF eTRAC electric central drives for efficient and zero-emission construction machinery.
ZF eTRAC combines an electric motor, central drive, power electronics and drive control into a modular electric driveline for compact and medium-sized off-highway machines.
The system is designed for compact loaders, backhoe loaders, forestry equipment, mobile excavators, telescopic handlers and wheel loaders, delivering high power density, compact installation and robust mechanical drive technology for demanding work cycles.
Core product benefits
ZF eTRAC is a complete electric driveline concept rather than an isolated motor. Its modular architecture allows the traction drive, working hydraulics, control electronics and mechanical output stage to be matched to the machine and duty cycle.
Modular electric driveline
The eTRAC system combines the central drive with electric motor, inverter, eDCU and application-specific ePTO functions where configured.
High power density
Compact electric drive packages provide high continuous and peak power in a space-conscious installation envelope.
Robust mechanical output
The electric drive is combined with a robust mechanical driveline concept to transmit traction reliably under demanding off-highway loads.
Liquid-cooled power electronics
Liquid cooling for the traction motor and power electronics supports stable performance during continuous working cycles.
Flexible voltage classes
The portfolio covers 48 V, 96 V and 650 V system architectures, depending on the vehicle class and eCD configuration.
Traction and working hydraulics
Where configured, the eDrive and ePTO provide separate electric power paths for vehicle traction and working hydraulics.
Integrated control
The eDCU and power electronics coordinate electric drive behaviour, energy management and machine-side control interfaces.
ZF control and operating functions
ZF eTRAC combines transmission hardware, controls and application-specific functions. Understanding the operating concept helps owners and workshops describe symptoms accurately before diagnosis or repair.
Electric central drive
The eCD central drive supplies the mechanical output path for electric traction and is adapted to the axle and machine architecture.
eDrive and ePTO
Depending on the configuration, one electric drive path provides traction while a separate ePTO path supplies working hydraulics or auxiliary functions.
Electromechanical powershift
Selected eTRAC medium-duty units combine electric torque production with a mechanical two-speed powershift concept for efficient traction across the operating range.
Power electronics and eDCU
The inverter, electric drive control unit and vehicle interfaces manage power conversion, torque delivery, protection and system communication.
Thermal management
Liquid cooling and the vehicle heat-exchanger concept help control motor, inverter and power-electronics temperature during high-load operation.
Machine and axle integration
The eTRAC drive concept can be matched with ZF axle and steering solutions, with the exact mechanical, electrical and oil-circuit boundaries confirmed for the installed system.
eTRAC applications and typical ranges
The application and designation ranges below help owners and workshops narrow the identification route. They do not replace the exact machine, serial number and ZF type-plate check.
| Application | ZF designations | Application range and service context |
|---|---|---|
| Compact electric loaders | eCD20, eCD30, eCD40 and eCD60 | Compact construction machines in the documented 48 V, 96 V and 650 V classes, covering approximately 3.9 to 10.5 t vehicle classes and 20 to 60 kW continuous drive power depending on configuration. |
| Backhoe loaders, forestry equipment, mobile excavators and telescopic handlers | eCD50, eCD70 and eCD90 | 650 V medium-duty electric central drives for machine classes up to approximately 15.5, 20 and 25 t, with continuous and short-duration power matched to the installed configuration. |
| Electric wheel loaders | eCD110 | Up to 10 t machine class; 90 kW continuous eDrive and 105 kW continuous ePTO. |
| Electric wheel loaders | eCD130 | Up to 12 t machine class; 105 kW continuous eDrive and 105 kW continuous ePTO. |
| Electric wheel loaders | eCD150 | Up to 13.5 t machine class; 120 kW continuous eDrive and 125 kW continuous ePTO. |
| Electric wheel loaders | eCD170 | Up to 16 t machine class; 135 kW continuous eDrive and 150 kW continuous ePTO. |
| Electric wheel loaders | eCD190 / eCD210 | Up to 18 t machine class; 165 kW continuous eDrive and 175 kW continuous ePTO. |
| Electric wheel loaders | eCD210 / eCD230 | Up to 20.5 t machine class; 180 kW continuous eDrive and 175 kW continuous ePTO. |
Fluid, service and diagnostic planning
eTRAC has no single universal oil route. Before service, identify the eCD designation, electrical system, mechanical section, control-unit circuit, axle relationship and operating conditions. Electrical isolation, diagnosis and mechanical service must be planned as connected but separate workstreams.
For eCD50, eCD70 and eCD90, TE-ML 07 separates the mechanical section from the transmission control-unit circuit: the mechanical section follows the applicable 07B, 07D, 07E or 07F route, while the control unit uses the specified HLP hydraulic-oil requirement. For compact eCD units on the documented MT-L 3010–3025 eCD axle configurations, TE-ML 05 lists ZF PowerFluid Plus classes 05E, 05F and 05G. For eCD60 and the eCD110–eCD230 wheel-loader family, do not infer the oil route or filter plan from a neighbouring model; verify the installed unit and current ZF service information.
eCD50 / eCD70 / eCD90: separate circuits
The mechanical section and transmission control-unit circuit follow different requirements. Confirm the applicable TE-ML 07 class and HLP hydraulic-oil specification from the identified installation.
Compact eCD on MT-L 3010–3025 eCD
TE-ML 05 lists ZF PowerFluid Plus under classes 05E, 05F and 05G for the documented compact axle configurations. Confirm the exact axle, eCD designation and operating conditions before filling.
Use the table as a service-planning boundary, not as a universal interval chart. Identify the installed eCD and circuit first, then combine safe electrical diagnosis with the correct mechanical, axle, oil and filter checks.
| Application group | Identification and circuit | Fluid route | Service and diagnostic boundary |
|---|---|---|---|
| eCD50 / eCD70 / eCD90 central drive | Mechanical section plus transmission control unit; TE-ML 07 | Mechanical section: applicable 07B / 07D / 07E / 07F route. Control unit: specified HLP hydraulic oil. | Record fault codes, HV safety status, temperatures, oil/filter condition and recent work before opening or changing components. No universal hour interval is assumed. |
| Compact eCD on MT-L 3010–3025 eCD | eCD20 / eCD30 / eCD40 compact axle configurations; TE-ML 05 | ZF PowerFluid Plus classes 05E / 05F / 05G where the documented axle and operating conditions apply. | Confirm the exact axle, load class, temperature range and current service schedule; do not mix mechanical and electrical diagnosis. |
| eCD60 and eCD110–eCD230 wheel-loader family | Exact eCD designation, electrical system and installation required | No generic fluid route is published here; verify the current ZF documentation for the installed unit and circuit. | Separate high-voltage, cooling, control, mechanical and axle checks; ATS defines the correct diagnostic and service sequence. |
Before changing oil or filters, record the eCD designation, part list number and serial number, machine and axle relationship, system voltage, operating temperature, oil condition, filter restriction, fault codes and service history. ATS verifies the current ZF route and defines the correct diagnostic or repair sequence before components are replaced.
ZF eTRAC FAQ
Practical answers for vehicle owners, workshops and manufacturers planning diagnosis, maintenance or delegated repair.
How should a workshop identify an eTRAC system before diagnosis?
Start with the eCD designation and serial information on the type plate, then record the machine OEM and model, system voltage, axle relationship, battery and inverter arrangement, operating hours and any recent conversion or repair work. The same eTRAC family name can cover different electrical and mechanical configurations. Send the identification data to ATS before ordering oil, filters or replacement components so the installed system is matched to the correct diagnostic and service route.
What should be checked when an eTRAC machine shows derating or loss of traction?
Record whether the symptom appears during cold start, continuous work, high load, uphill travel or after the machine reaches operating temperature. Capture warning messages and fault codes, system voltage, inverter and eDCU status, cooling temperatures, motor feedback and any mechanical noise or oil leakage. Do not replace the inverter, motor, axle or oil on symptoms alone: contact ATS so the electrical, thermal, mechanical and vehicle-side checks are assessed in the correct order.
What are the safety boundaries for eTRAC high-voltage diagnosis?
An eTRAC system can combine high-voltage energy storage, inverter electronics, electric motors and mechanical drive elements. Isolation, discharge-time verification, measurement and reconnection must follow the machine and ZF safety procedures and be performed only by suitably trained personnel with the correct equipment. Do not open high-voltage housings or bypass interlocks to investigate a fault. Contact ATS before dismantling when a warning, isolation fault, insulation issue or unexpected voltage is present.
How can electrical, cooling and mechanical eTRAC faults be distinguished?
Electrical or control faults often appear with derating, warning messages, communication errors or a repeatable torque limitation. Cooling problems may worsen as temperature rises and can affect the inverter, motor or hydraulic ePTO. Mechanical or axle faults are more likely to produce abnormal noise, vibration, leakage or load-dependent loss of motion, but symptoms can overlap. Record the conditions and measurements instead of guessing from the symptom; contact ATS to define the correct test sequence for the installed eCD and axle configuration.
What information should be sent ATS for an eTRAC repair or warranty assessment?
Send clear type-plate photographs showing the eCD designation, part list number and serial number, plus the machine OEM and model, machine serial number, operating hours, system voltage, axle relationship, fault codes, warning messages, temperature and load conditions, oil and filter history, recent work and available diagnostic measurements. This lets ATS assess identification, high-voltage safety, control, cooling, mechanical and axle-related causes before defining the repair or manufacturer-delegated warranty route.
Need post-sale support for a ZF eTRAC electric central drive?
ATS supports eTRAC identification, electrical and mechanical diagnosis, correct fluid and service planning, verified replacement-parts supply, repair and overhaul coordination, and manufacturer-delegated warranty work. Send the eCD type-plate details, including the part list number and serial number, together with the machine data, symptoms, fault messages and service history so we can define the correct next step.
Contact ATS