Description
Reliable explosion-proof control with Schischek ExMax-15.30
The Schischek ExMax-15.30 electric explosion-proof rotary actuator delivers powerful and reliable performance for the precise control of valves and dampers in hazardous areas. This compact actuator (size S) is specifically 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.
With universal control (open/close, 3-point control) and five adjustable motor runtimes (3, 15, 30, 60 or 120 seconds per 90°), you have full control over your installation. The robust aluminium housing with protection class IP66 ensures trouble-free operation in dusty, wet and demanding industrial environments. Thanks to the integrated heater, this actuator is also suitable for extremely low temperatures down to -40°C.
Why choose the Schischek ExMax-15.30?
- Explosion-proof according to ATEX and IECEx, for safe operation in hazardous areas
- Selectable torque of 15 or 30 Nm, ideally matched to your application
- Open/close or 3-point control, easily configurable to your requirements
- Adjustable motor runtimes 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 runtime (adjustable) | 3 / 15 / 30 / 60 / 120 s per 90° |
| Protection class | IP66 (dust-tight, water jet resistant) |
| Housing material | Corrosion-resistant aluminium 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 |
Simple installation and safe operation
The Schischek ExMax-15.30 actuator can be installed quickly thanks to the ISO 5211 flange connection (size S) and standard double-square 12×12 mm shaft. This saves you time immediately and prevents installation issues. The integrated emergency manual override makes manual adjustment simple and safe.
Frequently asked questions (FAQ)
How easy is the installation?
You can mount the actuator quickly and easily via 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 environments.
Is outdoor use possible?
Yes, thanks to the IP66 protection class, 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 | Additional 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 | Additional 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-5.10-SF | 5/10 Nm | 3/10 sec. / 90° | Open-close, 3-point | | | | |
| ExMax-15-SF | 15 Nm | 3/10 sec. / 90° | Open-close, 3-point | | | | |
| ExMax-5.10-YF | 5/10 Nm | 3/10 sec. / 90° | 0-10VDC, 4-20 mA | | | | |
| ExMax-15-YF | 15 Nm | 3/10 sec. / 90° | 0-10VDC, 4-20 mA | | | | |
| ExMax-5.10-BF | 5/10 Nm | 3/10 sec. / 90° | Open-close, 3-point | | | | |
| ExMax-15-BF | 15 Nm | 3/10 sec. / 90° | Open-close, 3-point | | | | |
| ExMax-8-F1 | 8 Nm | ~ 1 sec. / 90° | Open-close | | | | |
| ExMax-15-F1 | 15 Nm | ~ 1 sec. / 90° | Open-close | | | | |
| ExMax-8-SF1 | 8 Nm | ~ 1 sec. / 90° | Open-close | | | | |
| ExMax-15-SF1 | 15 Nm | ~ 1 sec. / 90° | Open-close | | | | |
| ExMax-8-BF1 | 8 Nm | ~ 1 sec. / 90° | Open-close | | | | |
| ExMax-15-BF1 | 15 Nm | ~ 1 sec. / 90° | Open-close | | | | |
| ExMax-5.10-CYF | 5/10 Nm | 10 sec. / 90° | 4-20 mA | | | | |
| ExMax-15-CYF | 15 Nm | 10 sec. / 90° | 4-20 mA | | | | |
ExMax-S Accessories
| Type | Description | Datasheet | Additional info | EC declaration of conformity |
|---|---|---|---|---|
| ExSwitch | 2 external Ex auxiliary switches | | | |
| ExBox | Ex-e terminal box | | | |
| ExBox-..-VA | Stainless steel enclosure | – | – | |
| ExPro-TT-.. | Safety temperature trigger for ExMax -…- BF actuators | | | |
| HV-.. | Manual override | | – | – |
Do you have any questions? Then please contact betec controls. We will be happy to assist you by phone, email, or the chat function.