Key Technical Specifications
- Explosion Protection: ATEX II 2G Ex db e IIC T4 Gb / II 2D Ex tb IIIC T135°C Db
- Protection Class: IP68 (8m / 48h)
- Control Voltage: 24V DC
- Torque Output: 160 Nm
- Rotation Angle: 90° (±5° adjustable)
- Duty Cycle: S4 – 30%
- Operating Temperature: -20°C to +60°C
- Housing Material: Aluminum, epoxy coated
- Interface: AUMA MATIC C / MATIC C2
- Manual Override: Handwheel (optional)
Product Introduction
AUMA ACEXC1.01 Z031.231/02 is an explosion-proof electric actuator for remote valve operation in hazardous areas. It delivers precise 90° part-turn control with integrated safety barriers.This unit carries ATEX certification for Zone 1 and Zone 21 environments. The IP68 rating allows submersion up to 8 meters for 48 hours, while the 160 Nm torque output handles medium-duty valve applications reliably.
Installation & Configuration Guide
Preparation (10 min)
- Verify the work area is classified as Zone 1 or Zone 21.
- Confirm 24V DC control supply is isolated and locked out.
- Gather AUMA-specific torque wrench and sealing compound.
Removal (5–10 min)
- Disconnect control and feedback cables at the terminal block.
- Unbolt the actuator from the valve flange.
- Remove the mechanical coupling from the valve stem.
- Inspect the valve stem and mounting pad for corrosion.
Installation (10 min)
- Align the actuator drive sleeve with the valve stem.
- Secure the actuator to the valve flange using specified torque.
- Route cables through approved Ex-rated cable glands.
- Verify cable gland sealing rings are properly compressed.
Power-On & Test (10 min)
- Restore 24V DC control power.
- Execute end-position calibration via MATIC interface.
- Verify open/close limit switches trigger correctly.
- Run full stroke test and check torque cutoff function.
Troubleshooting Quick Reference
| Symptom | Probable Cause | Quick Check | Corrective Action |
|---|---|---|---|
| Actuator won’t move | Control voltage loss | Measure 24V at terminals | Restore power; check fuse |
| Stalls mid-stroke | Torque limit reached | Inspect valve for binding | Free valve; adjust torque switch |
| No feedback signal | Limit switch misaligned | Check MATIC position indicator | Recalibrate end positions |
| Moisture ingress | Cable gland failure | Inspect sealing ring condition | Replace gland seal; dry housing |
| Excessive noise | Gear wear or misalignment | Listen for grinding sounds | Inspect gear train; realign coupling |
Dimensions, Mounting & Wiring Notes
- Mounting: ISO 5211 F07/F10 flange
- Drive Interface: 17mm female star wheel
- Cable Entry: 2x M25x1.5 Ex-rated glands
- Terminal Block: Screw-type, IP68 sealed compartment
- Manual Override: Top-mounted handwheel (if equipped)
- Weight: Approx. 18 kg
FAQ
Can I install this in Zone 0 or Zone 20?
No. The ACEXC1.01 is rated for Zone 1/21 only. Zone 0/20 requires intrinsically safe or specially certified equipment.I need this actuator tomorrow. Is it available?
Tested units ship within 24 hours. We maintain stock of common AUMA Ex-proof models for emergency valve replacements.Does this actuator include a MATIC controller?
The ACEXC1.01 is the actuator body only. MATIC C or C2 control modules are ordered separately based on your control requirements.What torque does this actuator deliver?
160 Nm nominal output at 24V DC. Verify your valve torque requirement includes a 20% safety margin.Can I use standard cable glands?
No. Only ATEX-certified Ex-rated cable glands are permitted. Standard glands void the explosion protection certification.How do I verify the actuator hasn’t been damaged?
Check the IP68 seal integrity and inspect the terminal compartment for moisture. Any sign of corrosion means the unit failed its environmental protection.Is this compatible with non-AUMA valves?
Yes, if the valve has ISO 5211 F07 or F10 mounting. You may need an adapter plate for non-standard stem configurations.
