Dunkermotoren E22R Power-Off Brake
The Dunkermotoren E22R is a 24Vdc power-off brake rated at 0.1Nm nominal torque, with a torque range of 0.1–0.14Nm over the temperature range. It works on the permanent-magnet principle, so the correct supply polarity must be observed at installation. At 22mm diameter and 30mm long, the E22R is the most compact brake in the Dunkermotoren range. ...
Read MoreThe Dunkermotoren E22R is a 24Vdc power-off brake rated at 0.1Nm nominal torque, with a torque range of 0.1–0.14Nm over the temperature range. It works on the permanent-magnet principle, so the correct supply polarity must be observed at installation.
At 22mm diameter and 30mm long, the E22R is the most compact brake in the Dunkermotoren range. It draws 2.5W nominal input power and runs with low noise, which suits it to space-constrained equipment where a holding brake has to sit inside the motor envelope. Protection class is IP20 as supplied; brakes can be mounted to the motor openly or with covers in protection class up to IP65, and in combination with brushless motors they can be integrated into the motor profile housing at IP65.
Connection is by 400mm leads in UL style 10556 AWG26, blue for GND, red for Vdc. All rated values apply in the run-in condition.
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Features
- Permanent-magnet power-off design holds the load when the 24Vdc supply is removed — the axis stays put on power loss with no holding current
- The most compact brake in the Dunkermotoren range — Ø22mm and 30mm long — for the tightest motor stacks where a larger brake won't fit
- 0.1Nm nominal holding (0.1–0.14Nm over temperature) — the lightest in the range, sized for small or low-inertia axes
- Draws just 2.5W — the lowest power of any brake in the range, easing the load on the control supply
- Low-noise operation for quiet installations where a louder brake would be noticed
- IP20 as supplied, or up to IP65 with covers or inside a brushless motor's profile housing — one brake for open or sealed installs
- Polarity-coded 400mm flying leads (blue GND, red Vdc), UL style 10556 AWG 26 — wire straight in with polarity clear at a glance
Specifications
| POWER-OFF BRAKE SPECIFICATIONS | ||
|---|---|---|
| Nominal voltage | Vdc | 24 |
| Nominal torque(1) | Nm | 0.1 |
| Torque range(1)(2) | Nm | 0.1–0.14 |
| Nominal current(1) | A | – |
| Nominal input power(1) | W | 2.5 |
| Activation time | ms | – |
| Deactivation time | ms | – |
| Protection class | IP | 20 |
| Weight | kg | – |
| Noise | – | low noise |
| Diameter (Ø) | mm | 22 |
| Length (L) | mm | 30 |
| Strand colour GND | – | blue |
| Strand colour Vdc | – | red |
| Strand length | mm | 400 |
| Strand type / cross section | – | UL style 10556 AWG 26 |
| (1) Values valid in run-in condition | ||
| (2) Over the temperature | ||
Warranty & Returns
Warranty periods vary by product. Please refer to the Powerbox Warranty Policy for the applicable coverage period against manufacturing defects from date of purchase. For returns and RMA requests, please visit our RMA support page or contact our support team directly.
FAQs
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