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Kollmorgen B-102-A-21
Product Series: B-Series — Servo Motor Cable Assemblies
Product Introduction:
The B-102-A-21 is a pre-configured servo motor power cable assembly from Kollmorgen’s B-Series product line. It is designed to connect Kollmorgen servo motors (AKM, AEM, XEL, XPL, AEP, ACM series) to AKD/AKM servo drives. The “102” indicates the cable cross-section and length code, “A” denotes the connector type, and “21” specifies the wiring configuration.
Detailed content
Model Designation Breakdown:
- B = B-Series (Cable Assembly)
- 102 = Cable specification code (cross-section + length variant)
- A = Connector type A (drive-end: M23; motor-end: M23)
- 21 = Wiring configuration 21 (standard 3-phase + PE + brake)
Technical Specifications:
| Parameter | Value |
|---|---|
| Cable Type | Servo Motor Power Cable (Shielded, Flexible) |
| Conductors | 4× 2.5 mm² + 1× 0.75 mm² (PE) |
| Voltage Rating | 600 VAC / 1000 VDC |
| Current Rating | 16 A (continuous) |
| Cable Length | ~5 meters (per 102 code; verify with datasheet) |
| Shielding | Dual-layer: Copper braid (85% coverage) + Aluminum foil |
| Connector (Drive End) | M23, 12-pin, screw-lock |
| Connector (Motor End) | M23, 12-pin, screw-lock |
| Brake Wire | Included (0.75 mm², 2-pin) |
| Temperature Rating | -20°C to +80°C (flexing), -40°C to +105°C (fixed) |
| Bend Radius (min.) | 7.5× cable diameter (static), 10× (dynamic) |
| Protection Class | IP67 (when mated) |
| Standards | UL 2556, CE, RoHS compliant |
| Weight (approx.) | 0.8 kg |
Material Composition:
- Conductors: Oxygen-free copper (OFC), Class 5 per IEC 60228
- Insulation: XLPE (cross-linked polyethylene), color-coded (U=brown, V=black, W=white, PE=green/yellow)
- Inner Sheath: PVC (flexible grade)
- Braid Shield: Tinned copper braid (85% coverage)
- Outer Jacket: PUR (polyurethane) — oil resistant, abrasion resistant
- Connectors: Nickel-plated brass housing, silicone seals (IP67)
- Strain Relief: Metal clamp with rubber grommet
Structural Features:
- 4 power conductors (U/V/W/PE) + 2 brake wires in one jacket
- Dual shielding — braid + foil for EMI immunity
- Keyed connectors — prevents mis-mating (12-pin, asymmetric keying)
- Pre-wired and tested — plug-and-play installation
- Drag-chain rated — suitable for moving cable carrier applications (if specified)
Working Principle:
The cable transmits three-phase AC power from the servo drive to the motor windings, plus a separate brake circuit for the motor’s holding brake. The dual shielding prevents electromagnetic interference (EMI) from the high-frequency PWM signals in the servo drive from radiating outward, and also prevents external noise from corrupting the encoder signal (if encoder cable is routed nearby). The color-coded conductors ensure correct phase connection (U→U, V→V, W→W).
Key Advantages:
- Pre-assembled and tested — zero wiring errors
- Dual shielding — superior EMI performance vs. unshielded cables
- PUR jacket — oil and abrasion resistant for industrial environments
- IP67 connectors — protected against dust and temporary immersion
- Kollmorgen OEM quality — guaranteed compatibility with all Kollmorgen drives and motors
Applicable Industries:
- All Kollmorgen servo motor applications
- CNC Machines
- Robots
- Packaging Machines
- Any EtherCAT/servo-driven motion system
Installation Requirements:
- Route cable away from high-voltage power lines (> 200mm separation)
- Do not exceed minimum bend radius — conductor damage occurs
- Use cable clamp at both ends — prevent strain on connectors
- Torque connector screws to 2.5 Nm — do not over-tighten
- If using drag chain: Use cable carrier rated version, verify bend radius in chain
Usage Precautions:
- Do not cut or modify cable — voids warranty and safety certification
- Do not exceed 16A continuous current — cable overheating risk
- Do not run parallel to encoder cables for > 1m — cross at 90° if unavoidable
- Replace immediately if jacket is damaged — exposed conductors are a shock hazard
- Max ambient at cable: 80°C — do not route near heat sources
