T85H80-4208 NEMA-34 8 Wire Motor
NEMA 34 stepper motor, 80mm body, 4.2 A/phase, 4.51 Nm / 46.0 kg-cm holding torque, 8 leads.
Overview
The T85H80-4208 is a NEMA 34 stepper motor with an 80mm body, drawing more current and holding more torque than the shorter T85H65-2808.
It draws 4.2 A per phase (0.75 ohm, 3.4 mH) and holds 4.51 Nm / 46.0 kg-cm at standstill - roughly 35% more torque than the T85H65-2808 for 50% more current. A Tstep-117X (1.2-7.0 A) or Tstep-168X (1.2-8.0 A) drive covers it.
Eight lead wires bring both halves of each phase winding out separately, so the motor can be wired in series for more torque at low speed or parallel for better torque at high speed.
The T85H118-4208 draws the same 4.2 A in a longer 118mm body for still more torque; where 4.2 A is more current than the drive or supply can spare, the T85H65-2808 covers the same frame at 2.8 A. All keep the same NEMA 34 mounting flange, so switching between them doesn't mean redesigning the mount.
Supplied by Tiny Controls in India.
Specifications
| Flange size | 85 mm (NEMA 34) |
|---|---|
| Phase current | 4.2 A |
| Holding torque | 4.51 Nm \ 46 kg-cm |
| Phase resistance | 0.75 Ω |
| Phase inductance | 3.4 mH |
| Lead wires | 8 |
Downloads
Questions
How's this different from the T85H65-2808?
Roughly 50% more current for 35% more torque — 4.2A/4.51 Nm here versus its 2.8A/3.33 Nm.
My supply or drive can't spare 4.2A — is there a lower-current option in this frame?
Yes — the T85H65-2808 covers the same frame at 2.8A instead.
Is there more torque available at the same 4.2A current?
Yes — the T85H118-4208 draws the same 4.2A in a longer 118mm body for still more torque.
What drive covers this?
A Tstep-117X (1.2-7.0A) or Tstep-168X (1.2-8.0A).
Does switching between these T85H motors mean redesigning my mount?
No — all keep the same NEMA 34 mounting flange.