Allen‑Bradley 1326AB-C2C-11 High Performance Brushless AC Servo Motor

Product Overview

Core Specifications

• Frame size: C frame, 194 mm (7.63 in) outer diameter
• Stack length: 2 (medium stack for balanced torque & speed)
• Speed rating: Base speed 2000 RPM, max operating speed 3000 RPM
• Rated power: 3.5 kW
• Continuous stall torque (40°C ambient): 23.7 N·m
• Continuous stall current: 23.3 A RMS
• Feedback device: Built-in rotary resolver (no fragile electronic components, high shock resistance)
• Mounting: Inch NEMA combination C flange, keyed solid shaft, no shaft seal as standard
• Brake: Without holding brake
• Enclosure: TENV fully sealed housing; IP65 rating when optional shaft seal kit is installed
• Connectors: MIL-spec circular military-style power & feedback connectors
• Insulation class: Class H high-temperature winding insulation
• Max ambient temperature (no derating): 40°C
• Net weight: 43.54 kg
• Certifications: UL certified
• Compatibility: Matches 1391B-ES / 1391-DES servo amplifiers

Main Functions

1. Deliver constant high continuous stall torque at zero speed to hold heavy mechanical loads without position drift
2. Sinusoidal magnetic design ensures smooth low-speed rotation with minimal torque ripple for precision positioning
3. Resolver position feedback provides reliable commutation, velocity and absolute position signal for servo drive closed-loop control
4. Support high-cycle acceleration/deceleration for heavy mechanical actuators, ball screw and rack-and-pinion transmission
5. Fully sealed TENV housing prevents dust, moisture and oil ingress in workshop environments
6. High thermal capacity H-class winding sustains long-duration heavy-load operation without overheating

Key Advantages

• Full continuous stall torque at standstill eliminates need for external holding devices for static load retention
• Resolver feedback immune to dust, vibration and temperature extremes, far more durable than optical encoders in harsh industrial sites
• Heavy-duty large frame design delivers outstanding torque density for high-power heavy-load motion applications
• Robust MIL circular connectors resist vibration loosening and abrasion under long-term operation
• Wide thermal operating window and high thermal time constant reduce overheating risk during sustained heavy duty cycles
• Mature mechanical structure with high shock and vibration resistance for metal processing, heavy automation equipment

Typical Applications