The Bernard Controls AT range of multi-turn electric actuators: the "essentials" series for conventional valve automation — seven models from 7 to 500 N·m, S4 duty on every model, IP68, and parameterisation from a phone via the BC App. A generation-mate of the heavy-duty full-feature BT range, AT takes a "select the essentials" approach for a competitive yet performing light-duty product, in FLAT (on-off) and LOGIC (modulating) versions. The brochures are already online in our Bernard Controls library; this article collects the selection essentials.
| Model | Output torque (N·m) |
|---|---|
| AT3 | 12–30 |
| AT6L | 24–60 |
| AT6 | 24–60 |
| AT7 | 7–70 |
| AT14 | 56–140 |
| AT25 | 100–250 |
| AT50 | 200–500 |
Direct-mount output 7–500 N·m (go to the BT range for higher torque); a wide choice of output speeds; SWITCH and LOGIC versions, the modulating one rated Class III for higher duty performance.
| Feature | Details |
|---|---|
| BC App smartphone setup | Bluetooth configuration and operation from a phone: position settings, alarm descriptions, troubleshooting guides, documentation, Bernard Controls Assistance; the full configuration uploads in one step — complex settings made simple |
| Declutch-free handwheel | Motor priority, no clutch operation; foldable handle |
| Wide stem acceptance | Removable screw cap suits rising-stem valves; watertight stem-cover fixation |
| Local commands | Two buttons plus a padlockable selector — clear, reliable local open/close/stop |
| Heavy-duty design | Full aluminium enclosure with durable powder coating (grey/champagne); IP68; anti-condensation heater, travel and torque switches standard |
| Two cover positions | Optional cover orientation for different mounting directions |
AT = "The essentials": conventional small-to-mid-torque valve automation, everything needed at a competitive price. BT = "The complete solution": 12/30–500 N·m, C4 corrosion protection, full LOGIC control. Rule of thumb: AT for standard water/HVAC/general-industry valves; BT where corrosion protection and control complexity are higher. Both brochures are downloadable from the library article for side-by-side comparison.
Bernard Controls library, 70 files (AT/BT brochures EN/CN) · Bernard-derived library, 27 files · Bernard full-series atlas · Actuator braking methods
For Bernard (incl. Beijing) sizing and alternatives submit an RFQ.
Source: Bernard Controls brochure_AT_ENG_GRP_rev04a (downloadable on this site); compiled by actuators.cn.
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