Description
Introduction
With the Schischek InMax-50-BF | 50 Nm, quarter-turn actuator, IP67, with spring return, you choose an industrial InMax actuator with IP67 protection, universal power supply 24…240 VAC/DC, and flexible control. This increases safety and continuity in every area, while also benefiting from easy integration and reliable performance.
Features
- IP67 enclosure; therefore suitable for demanding environments
- Universal power supply 24…240 VAC/DC
- Including 3-point, on/off, or modulating 0–10 V / 4–20 mA
- Available with spring return (~3 s or ~20 s) depending on variant
- Ex-safety circuit and tripping (depending on variant)
Technical specifications
| Supply voltage | 24…240 VAC/DC (self-adjusting) |
| Control | On/off, 3-point, or 0–10 V / 4–20 mA (depending on variant) |
| Protection class | IP67 |
| Rotation angle | 95° incl. ~5° pre-tension |
| Safety | Ex safety circuit / tripping (depending on variant) |
| Spring return | ~3 s or ~20 s (depending on variant) |
| Temperature range | -20…+50 °C (series M; depending on type) |
| Housing | Aluminium (CTM) or stainless steel (VAM) options |
| Mounting | Direct coupling double square 16×16 mm / 12×12 mm (S) |
Available variants
| Item name | Description |
|---|---|
| InMax-50-BF | Torque: 50 Nm; Control: On-off/3-point; Spring: ~20 s/90°; Running time: 40/60/90/120/150 s |
| InMax-50-YF | Torque: 50 Nm; Control: 0–10 V / 4–20 mA; Spring: ~20 s/90°; Running time: 40/60/90/120/150 s |
| InMax-50-F3 | Torque: 40 Nm; Control: On-off; Spring: ~3 s/90°; Running time: 40/60/90/120/150 s |
| InMax-50-BF3 | Torque: 40 Nm; Control: On-off + TT; Spring: ~3 s/90°; Running time: 40/60/90/120/150 s |
FAQ
What does the Ex safety circuit do?
This means the actuator safely shuts down in the event of faults; this minimizes risks.
Which control do I need?
Compared with on/off control, modulating control (0–10 V/4–20 mA) provides more precise regulation.
When should I choose spring return?
In the event of a power failure, the valve automatically returns to a safe position; this increases operational reliability.
Will this fit into my system?
Yes, and it can also be connected to common HVAC and process control systems.
Do you have any questions or would you like more information? Please contact us! You can reach us by phone, Email, or, also convenient, via the chat function.
Available actuators in the InMax-M series | 30-150 N·m
InMax-M | without spring return | 50…150 N·m | for installation in a safe area
| Type | Torque | Spring return | Control | Datasheet | Additional info | EU conformity |
| InMax-50.75 | 50/75 N·m | – | Open-close, 3-point |  | | |
| InMax-100 | 100 N·m | – | Open-close, 3-point | | | |
| InMax-150 | 150 N·m | – | Open-close, 3-point | | | |
| InMax-50.75-S | 50/75 N·m | – | Open-close, 3-point | | | |
| InMax-100-S | 100 N·m | – | Open-close, 3-point | | | |
| InMax-150-S | 150 N·m | – | Open-close, 3-point | | | |
| InMax-50.75-Y | 50/75 N·m | – | 0-10 V, 4-20 mA | | | |
| InMax-100-Y | 100 N·m | – | 0-10 V, 4-20 mA | | | |
InMax-M | with spring return | 30…60 N·m | for installation in a safe area
| Type | Torque | Spring return | Control | Datasheet | Additional info | EU conformity |
| InMax-30-F | 30 Nm | approx. 20 sec. / 90° | Open-close, 3-point | | | |
| InMax-50-F | 50 Nm | approx. 20 sec. / 90° | Open-close, 3-point | | | |
| InMax-60-F | 60 N·m | approx. 20 sec. / 90° | Open-close, 3-point | | | |
| InMax-30-SF | 30 Nm | approx. 20 sec. / 90° | Open-close, 3-point | | | |
| InMax-50-SF | 50 Nm | approx. 20 sec. / 90° | Open-close, 3-point | | | |
| InMax-60-SF | 60 N·m | approx. 20 sec. / 90° | Open-close, 3-point | | | |
| InMax-30-YF | 30 Nm | approx. 20 sec. / 90° | 0-10 V, 4-20 mA | | | |
| InMax-50-YF | 50 Nm | approx. 20 sec. / 90° | 0-10 V, 4-20 mA | | | |
| InMax-30-BF | 30 Nm | approx. 20 sec. / 90° | Open-close, 3-point | | | |
| InMax-50-BF | 50 Nm | approx. 20 sec. / 90° | Open-close, 3-point | | | |
| InMax-60-BF | 60 N·m | approx. 20 sec. / 90° | Open-close, 3-point | | | |
| InMax-30-F3 | 30 Nm | < 3 sec. / 90° | Open-close | | | |
| InMax-50-F3 | 50 Nm | < 3 sec. / 90° | Open-close | | | |
| InMax-30-SF3 | 30 Nm | < 3 sec. / 90° | Open-close | | | |
| InMax-50-SF3 | 50 Nm | < 3 sec. / 90° | Open-close | | | |
| InMax-30-BF3 | 30 Nm | < 3 sec. / 90° | Open-close | | | |
| InMax-50-BF3 | 50 Nm | < 3 sec. / 90° | Open-close | | | |
Scope of delivery – InMax (size S or M)
1 × actuator with 1 m cable 1 × Allen key for manual override 4 × screws for mounting Special models – InMax -…- BF (size S or M) Actuators for fire dampers (InMax -…- BF) + safety temperature switch InPro-TT- ..
Special stainless steel models
– InMax -…- VAS / VAM (size S or M) Corrosion-resistant housing material in stainless steel similar to AISI 316, some parts nickel-plated, screws in stainless steel Use under extreme weather or harsh climatic conditions Special painted (coated) models
– InMax -…- CTS / CTM (size S or M) Aluminium housing with seawater-resistant offshore / marine coating, resistant to corrosive and maritime atmospheres, some parts nickel-plated, screws in stainless steel Suitable for offshore or onshore applications
Accessories / options – InMax (size S or M)
- External adjustable, field-adjustable switches
- Mounting clamp for round valve shaft (only for InMax size S)
- Ex-e junction box
- Adaptations for butterfly or ball valves
- Mounting bracket
- Cable glands in nickel-plated brass
- Protective cover in stainless steel for mounting on InMax actuators
- ExPolar heating system for use with InMax actuators at low temperatures down to -50°C