Eppendorf 5402 Manual Updated May 2026

The manual mandates the use of specific rotors. Using non-certified rotors voids the safety certification.

While the updated manual helps extend the life of your 5402, it also frankly lists operational limitations that newer centrifuges solve:

If your lab requires GMP/GLP compliance, many auditors now flag the 5402 for lack of digital documentation traceability. However, for teaching labs, low-throughput clinical use, or as a backup unit, the 5402 remains viable provided you follow the updated manual to the letter.

The full service manual (with circuit diagrams) is not publicly available due to Eppendorf IP. However, the updated User Manual includes an "Authorized Service Provider" section with wiring schematics for the power supply board (Pages 78-82). The manual mandates the use of specific rotors

| Problem | Possible Cause | Solution | |--------|----------------|----------| | No power | Fuse blown | Replace fuse (T2.5A, 250V) | | Imbalance error | Uneven loading | Rebalance tubes | | Lid won't open | Rotor still moving | Wait until display shows 0 rpm | | | Electronic lock failure | Use emergency release | | Excessive noise | Rotor nut loose | Stop immediately, retighten rotor |

The Eppendorf 5402 is a high-speed, benchtop microcentrifuge designed for standard molecular biology applications. The "updated" manual revisions were primarily issued to clarify compliance with evolving CE safety directives (IEC 61010-2-020) and to update maintenance procedures regarding the brushless motor drive found in later production units (or the transition from brushed motors). The full service manual (with circuit diagrams) is

This analysis covers the universal model (5402) and the refrigerated variant (5402 R), though the manual largely treats them as mechanically identical regarding the drive train and safety housing.