Resistance Value: 0.2 Ω (±5%)

Rated Power Dissipation: 300 W (continuous at 40°C ambient)

Peak Power Dissipation: 900 W (for 10 seconds maximum)

Maximum Voltage Across Resistor: √(P × R) = √(300 × 0.2) = 7.75 VDC RMS (continuous) / 13.4 VDC peak (10 sec)

Inductance: < 5 μH (low-inductance wire-wound construction)

Resistor Type: Wire-wound ceramic resistor on aluminum base

Housing Material: Extruded aluminum alloy (6063-T5) with anodized finish

Housing Dimensions (L × W × H): 180 mm × 80 mm × 55 mm

Weight: 1.8 kg

Terminal Type: Screw terminals (M6) — 2 power terminals + 1 ground terminal

Wire Gauge: 6 AWG to 10 AWG (copper, rated for 300 W)

Protection Rating: IP20 (indoor use only)

Operating Temperature: -25°C to +60°C (ambient)

Derating: -2.0% per °C above 40°C (continuous power)

Thermal Resistance (Junction to Ambient): 1.5 K/W (natural convection)

Certifications: CE, UL, RoHS Compliant

Key Features:

• 0.2 Ω, 300 W — Matched for 70 VDC bus AKD servo drives (AKD-P, AKD-T, AKD-B series)
• Low inductance (< 5 μH) — Ensures fast brake response, no voltage overshoot
• Wire-wound construction — High pulse overload capability (900 W for 10 sec)
• Aluminum housing — Excellent heat dissipation, lightweight
• Screw terminals — Secure, tool-free connection

Applicable Industries: Any application using Kollmorgen AKD servo drives with regenerative braking — CNC, robotics, packaging, printing, material handling

Installation Requirements:

• Mount in well-ventilated area — Minimum 150 mm clearance on all sides
• Connect to AKD drive braking terminals (B+, B-) using 6 AWG copper wire (max 1 m length recommended)
• Connect ground terminal to chassis ground (< 1 Ω)
• Do not cover or enclose the resistor — Requires free air convection

Precautions:

• Do not exceed 300 W continuous at ambient > 40°C — Apply derating curve
• Do not touch resistor during or immediately after operation — Surface temperature exceeds 200°C at full load
• Ensure wire gauge is adequate — Undersized wire causes voltage drop and overheating
• Verify braking resistor is connected BEFORE applying power to drive