ARB24-SR | Belimo Electric Ball Valve Actuator Modulating 24 V 180 In Lb

Belimo · Motors & Motion

Description  The Belimo ARB24-SR is an electric ball valve actuator designed for precise modulating control of large-diameter HVAC valves. It operates on AC/DC 24 V and provides proportional 2–10 VDC control with reliable torque output for consistent valve positioning.     Technical Specifications  Condition New/Never Used Surplus Brand Belimo Category HVAC Control Components Part Number ARB24-SR Subcategory Valve Actuators Actuator Type Electric, Non-Spring Return, Modulating Compatible Valve Size 1-1/4 in to 3 in Nominal Voltage AC/DC 24 V Frequency 50/60 Hz Voltage Range AC 19.2–28.8 V / DC 21.6–28.8 V Power Consumption (Operation) 2.5 W Power Consumption (Rest) 0.4 W Transformer Sizing 5 VA Control Signal 2–10 VDC (4–20 mA with resistor) Input Impedance 100 kΩ (2–10 V), 500 Ω (4–20 mA) Position Feedback 2–10 V, max. 1 mA Torque Output 180 in-lb Angle of Rotation 90° (adjustable) Running Time 90 s / 90° Manual Override External push button Overload Protection Electronic, full rotation Electrical Connection 18 AWG cable, 1 m, 1/2 in NPT Degree of Protection NEMA 2 Power Source UL Class 2 Weight 2.2 lb (1 kg)   Information About ARB24-SR The ARB24-SR is a Belimo modulating actuator developed for ball valves used in hydronic heating and cooling systems. It supports proportional control using a standard 2–10 VDC signal and can also be adapted for current-based control when required. The actuator is engineered to deliver consistent torque across its operating range while maintaining low power consumption. Its compact design and integrated wiring simplify installation in commercial HVAC control panels and mechanical rooms. Key Features Modulating control operation: Supports precise proportional valve positioning using a 2–10 VDC control signal for accurate flow regulation. High torque output: Provides 180 in-lb of torque to reliably actuate ball valves from 1-1/4 inch up to 3 inches in size. Non-spring return design: Motor-driven positioning is maintained without a fail-safe spring, supporting controlled modulation applications. Selectable rotation direction: Motor direction can be configured via internal switch to accommodate various mounting orientations. Adjustable rotation limit: Mechanical stop allows fine adjustment of valve travel to match application requirements. Integrated position feedback: Outputs a 2–10 V signal for monitoring valve position and supporting closed-loop control. Electronic overload protection: Protects internal components throughout the full rotation range to enhance long-term reliability. The ARB24-SR delivers the reliability and precision required for accurate modulating control of large ball valves in professional HVAC systems.

Brand: Belimo · Category: Motors & Motion

Key features

• Modulating control operation: Supports precise proportional valve positioning using a 2–10 VDC control signal for accurate flow regulation.
• High torque output: Provides 180 in-lb of torque to reliably actuate ball valves from 1-1/4 inch up to 3 inches in size.
• Non-spring return design: Motor-driven positioning is maintained without a fail-safe spring, supporting controlled modulation applications.
• Selectable rotation direction: Motor direction can be configured via internal switch to accommodate various mounting orientations.
• Adjustable rotation limit: Mechanical stop allows fine adjustment of valve travel to match application requirements.
• Integrated position feedback: Outputs a 2–10 V signal for monitoring valve position and supporting closed-loop control.
• Electronic overload protection: Protects internal components throughout the full rotation range to enhance long-term reliability.

Specifications

Contact Safety Shops for pricing, delivery and project support in the UAE.