Description
The MB3-SC-24M Ball Valve Actuator is part of the MB3 series, engineered for precise control in HVAC and fluid handling systems. It features a compact Pop-Top connection that allows fast, secure, tool-free installation on compatible ball valves, including VB200R, VB210R, VB300R, and VB310R models.
Equipped with proportional (modulating) control, the actuator accepts both 0–10 V DC and 4–20 mA DC inputs, providing flexible integration with various control systems. Its spring return mechanism ensures that the valve reliably closes in the event of a power failure, enhancing safety and system protection.
With a torque of 2.9 N·m (26 lb.in), IP31 protection, and operation within 0–60 °C, the actuator is built for robust performance in demanding environments. A green push-stem position indicator and convenient terminal block wiring make operation and installation simple.
Specifications
| Attribute | Details |
|---|---|
| Part number | MB3-SC-24M |
| Product type | Actuator |
| Actuator type | Electric rotary |
| Series | MB3 |
| Model | MB3 SRC-24M T31 00 |
| Destination | VB2, VB21, VB3, VB31 ball valves |
| Control type | Electrically operated |
| Control signal | Proportional (modulating) |
| Analogue input range | 0–10 V DC, 4–20 mA DC |
| Rated supply voltage | 24 V AC |
| Transformer rated power | 10 VA |
| Power consumption | 2.5 W / 2.7 VA |
| Return function | Spring return closed |
| Electrical insulation class | Class III |
| Torque | 2.9 N·m (26 lb.in) |
| Position indicator | Green push stem with color markers |
| Features | Pop-top quick connection, terminal block, removable cable gland |
| Conduit connection | M20 |
| Protection rating | IP31 |
| Operating temperature | 0…60 °C |
| Storage temperature | -40…76 °C |
| Humidity | 5–95 % non-condensing |
| Targeted regions | Europe, Asia Pacific, Australia |
| Net weight | 1.1 kg |







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