Description
Reliable explosion-proof control with Schischek ExMax-15.30
The Schischek ExMax-15.30 electric explosion-proof rotary actuator delivers powerful, reliable performance for precise control of valves and shut-off valves in explosive atmospheres. This compact actuator (size S) is specially certified for ATEX zones 1, 2, 21 and 22 and offers a selectable torque of 15 or 30 Nm, allowing you to easily choose the right force for your application.
Why choose the Schischek ExMax-15.30?
- Explosion-proof according to ATEX and IECEx, for safe operation in hazardous areas
- Selectable torque 15 or 30 Nm, ideally matched to your application
- Open/close or 3-point control, easily configurable to your requirements
- Adjustable motor running times from 3 to 120 seconds per 90°, maximum flexibility
- IP66 protection rating, fully resistant to harsh conditions
- Compact design (size S), quick and easy to install
Technical specifications
| Property | Specification |
|---|---|
| Product type | Explosion-proof electric rotary actuator (90°) |
| Torque (motor) | 15 / 30 Nm (adjustable on site) |
| Supply voltage | Universal AC/DC 24…240 V (self-adapting) |
| Control type | Open/close, 3-point control |
| Motor running time (adjustable) | 3 / 15 / 30 / 60 / 120 s per 90° |
| Protection class | IP66 (dust-tight, resistant to water jets) |
| Housing material | Corrosion-resistant aluminum alloy |
| Manual operation | Integrated emergency manual override (included) |
| Operating temperature | -40°C to +40°C (T6) / -40°C to +50°C (T5) |
| Shaft connection | Double square 12 × 12 mm |
| Integrated functions | Heating down to -40°C, integrated temperature protection |
| Dimensions (L × W × H) | 210 × 95 × 80 mm |
| Weight | approx. 3.5 kg |
| Certifications | ATEX 2014/34/EU, IECEx, CE |
| ATEX marking (gas) | II 2 (2) G Ex db [ib Gb] IIC T6, T5 Gb |
| ATEX marking (dust) | II 2 (2) D Ex tb [ib Db] IIIC T80°C, T95°C Db |
Easy installation and safe operation
The Schischek ExMax-15.30 actuator is quickly installed thanks to the ISO 5211 flange connection (size S) and the standard double-square 12×12 mm shaft. This immediately saves time and prevents installation issues. The integrated emergency manual override makes manual adjustment simple and safe.
Frequently Asked Questions (FAQ)
How simple is the installation?
You mount the actuator quickly and easily using the standard ISO 5211 flange connection, which prevents installation errors and saves you valuable time.
Can I use this actuator in all ATEX zones?
Yes, this actuator is certified for zones 1, 2, 21 and 22 (gas and dust), making it ideal for use in explosive atmospheres.
Is outdoor use possible?
Yes, with an IP66 protection rating the actuator is fully suitable for outdoor use under harsh conditions.
Available actuators in the ExMax-S series | 5-30 Nm
ExMax-S | without spring return | 5…30 Nm | suitable for use in Zone 1, 2, 21, 22
| Type | Torque | Spring return | Control |  Datasheet | Extra info | Certificate | EC Declaration of Conformity |
| ExMax-5.10 | 5/10 Nm | – | Open-close, 3-point | | | | |
| ExMax-15.30 | 15/30 Nm | – | Open-close, 3-point | | | | |
| ExMax-5.10-S | 5/10 Nm | – | Open-close, 3-point | | | | |
| ExMax-15.30-S | 15/30 Nm | – | Open-close, 3-point | | | | |
| ExMax-5.10-Y | 5/10 Nm | – | 0-10VDC, 4-20 mA | | | | |
| ExMax-15.30-Y | 15/30 Nm | – | 0-10VDC, 4-20 mA | | | | |
| ExMax-5.10-R | 5/10 Nm | – | Open-close, 3-point | | | | |
| ExMax-15.30-R | 15/30 Nm | – | Open-close, 3-point | | | | |
| ExMax-5.10-CY | 5/10 Nm | – | 4-20 mA | | | | |
| ExMax-15.30-CY | 15/30 Nm | – | 4-20 mA | | | | |
ExMax-S | with spring return | 5…15 Nm | suitable for use in Zone 1, 2, 21, 22
| Type | Torque | Spring return | Control | Datasheet | Extra info | Certificate | EC Declaration of Conformity |
| ExMax-5.10-F | 5/10 Nm | 3/10 sec. / 90° | Open-close, 3-point | | | | |
| ExMax-15-F | 15 Nm | 3/10 sec. / 90° | Open-close, 3-point | | | | |
ExMax-S Accessories
| Type | Description | Datasheet | Extra info | EC Declaration of Conformity |
|---|---|---|---|---|
| ExSwitch | 2 external Ex auxiliary switches | | | |
| ExBox | Ex-e Terminal box | | | |
| ExBox-..-VA | Stainless steel housing | – | – | |
| ExPro-TT-.. | Safety temperature trigger for ExMax -…- BF actuators | | | |
| HV-.. | Manual operation | | – | – |
Have questions? Please contact Betec Controls. We are happy to assist you by phone, email or the chat function.