Description
Detailed Parameter Table
| Parameter Name | Parameter Value |
| Product Model | 07DC92 |
| Manufacturer | ABB |
| Product Category | DC Motor |
| Power Rating | 45 kW (60 HP) |
| Voltage Rating | 500 V DC |
| Base Speed | 1750 RPM |
| Full-Load Current | 90 A |
| Torque (Continuous) | 245 Nm |
| Insulation Class | F (155°C) |
| Enclosure | IP55 (Totally Enclosed Fan-Cooled) |
| Frame Size | IEC 315S |
| Shaft Diameter | 65 mm with keyway |
| Weight | 385 kg |
| Cooling Method | IC 06 (Force-ventilated) |
ABB 07DC92
Product Introduction
The ABB 07DC92 is a robust industrial DC motor engineered for demanding variable-speed applications requiring precise torque control. Part of ABB’s renowned DMI series, this 45kW workhorse delivers exceptional low-speed torque characteristics essential for heavy inertial loads. The 07DC92 features optimized commutation and reinforced armature construction, enabling sustained performance in metal processing, extruder drives, and crane systems where traditional AC motors may falter.
Designed for seamless integration with ABB’s DCS 800 DC drives, the motor incorporates high-efficiency laminations and class F insulation to withstand thermal stresses during frequent starting/stopping cycles. Its IP55-rated enclosure provides superior protection against dust ingress and high-pressure water jets, making the ABB 07DC92 suitable for harsh environments like steel mills and paper machines. The motor’s oversized bearings and dynamically balanced rotor ensure vibration levels below ISO 10816-3 limits, extending mechanical lifespan.
Core Advantages and Technical Highlights
Torque Performance:
Delivers 250% starting torque with only 200% current due to optimized magnetic circuit design. Maintains constant torque down to 100 RPM—critical for winding applications.
Durability Features:
Double-sealed bearings (C3 clearance) resist contamination. Class F insulation with tropicalization treatment withstands 40°C ambient at 100% relative humidity. Commutator features V-ring clamping for vibration resistance.
Maintenance Optimization:
Quick-access brush holders allow replacement without disassembly. Embedded RTD sensors (optional) enable thermal monitoring. Stator compensation winding reduces flux distortion at partial loads.
Energy Efficiency:
85% minimum efficiency at 75% load exceeds IE2 standards. Regenerative capability returns braking energy to the grid via ABB DCS 800 drives.
Typical Application Scenarios
In steel rolling mills, the ABB 07DC92 drives roughing stands with precise speed synchronization, handling 400% overload during slab biting. Its forced ventilation (IC 06) maintains temperature during continuous reversing cycles.
Rubber extruders utilize the motor’s constant-torque capability for screw drives, where viscosity changes demand stable RPM under 0-100% load variations. The IP55 rating protects against carbon black contamination.
Harbor cranes deploy the 07DC92 for hoist mechanisms, leveraging regenerative braking to capture gravitational energy during descent—reducing grid consumption by 25%. Oversized shaft withstands radial loads from sheave misalignment.
ABB 07DC92
Related Model Recommendations
DCS800-S02-0450-05: Matched DC drive for 07DC92 (450A armature current).
07BR92: Replacement brush set with hybrid graphite-copper material.
07DC91: 37kW sibling motor for lower-power applications.
DSU-01C: Tachogenerator module for closed-loop control.
ZSD-40/4: Forced-ventilation blower kit for high-ambient operation.
07DC95: 55kW motor for higher-torque requirements.
DCP-02: Field converter module for independent excitation control.
Installation, Commissioning and Maintenance Instructions
Installation Preparation:
Ensure foundation flatness within 0.1mm/m. Use laser alignment tools for coupling (max 0.05mm offset). Verify 500kΩ minimum insulation resistance (500V megger test). Required tools: 65mm keyway puller, 180Nm torque wrench for foundation bolts.
Maintenance Suggestions:
Every 500 hours: Inspect brushes (replace if <15mm length). Check commutator groove depth (min 0.8mm). Quarterly: Clean ventilation ducts; measure vibration velocity (<2.8mm/s RMS). Annually: Re-grease bearings (Shell Gadus S2 V220 30g). Monitor brush sparking pattern—excessive sparking indicates worn bearings or misalignment.
Service and Guarantee Commitment
ABB provides a 24-month warranty for the 07DC92, covering manufacturing defects and premature bearing failure. Global service includes:
Emergency rotor rewinding within 72 hours
Vibration analysis by certified technicians
Lifetime technical documentation access via ABB MyGateway
Extended protection plans offer predictive maintenance through ABB Ability™ Smart Sensor platform, monitoring temperature/vibration trends. All 07DC92 motors undergo 8-hour no-load/4-hour full-load testing with torque ripple analysis before shipment.
