Hayward HRS Series Electric Actuators

The HRSN2 Series offers on/off and proportional electric actuators suitable for ball valves up to 6" and butterfly valves up to 4". These robust actuators feature multiple torque options, a wide voltage range, and advanced control capabilities in a durable NEMA 4X/IP67 enclosure.

Model Comparison

Use the table below to quickly compare the HRSN2 models. Click a model name in the detailed sections below for full specifications.

Model	Torque	Manual Override	Key Strength
HRSN2A	310 in-lbs (35 Nm)	Bottom 8mm Hex Shaft	Compact with hex override
HRSN2B	310 in-lbs (35 Nm)	Hand Wheel	Easy manual operation
HRSN2R	440 in-lbs (50 Nm)	Bottom 8mm Hex Shaft	Higher torque, hex override
HRSN2S	440 in-lbs (50 Nm)	Hand Wheel	Higher torque with handwheel

Key Features & Benefits

• ISO5211 compliant mounting with double square female drive socket
• Raised visual position indicator
• Two (2) volt-free Form A auxiliary switches (standard)
• NEMA 4X / IP67 compliant enclosure
• Two (2) EMT entry ports with sealed cable glands
• Wide operating temperature range: -22°F to +158°F (-30°C to +70°C)
• Supports On/Off, Proportional, 2-Position, and 3-Position control
• High motor starts per hour (up to 1200 on some models)

Technical Specifications (Common)

• Duty Cycle: 75% (S2-15 min / S4-75%)
• Environmental Rating: NEMA 4X / IP67
• Auxiliary Switches: Two (2) Form A volt-free, 3A @ 250 VAC
• Electrical Entry: ½" EMT or polyamide gland
• Control Options: On/Off, Proportional, 2-Position RO/RC, 3-Position
• Ambient Operating Range: -22°F to +158°F (-30°C to +70°C)
• Humidity: 0–95% RH

Options

• Manual Override Handwheel
• Local Control Stations
• IP68 Submersion rating
• Battery Backup and Supercapacitor Backup

Hazardous Location Versions

Hazardous location actuators share the same core design as the standard HRSN2 series but feature enclosures and certifications suitable for Class I and ATEX environments.

Class I (North American Standard)

• Ex d IIC T6 Gb, Ex tb IIIC T135 Db, IP66
• Class I, Zone 1, AEx d IIC T6 Gb
• Zone 21, AEx tb IIIC T135°C Db

ATEX / IECEx (European / International Standard)

• Ex II G Ex db IIC T6 Gb
• Ex II D Ex tb IIIC T85ºC / T100ºC / T135ºC Db

These versions maintain the same torque options, control capabilities, and mounting as the standard HRSN2 series while meeting strict hazardous area requirements.

Hazardous location valve actuator catalog pages:

• Class I valve actuators

• ATEX valve actuators

 

Programmable / Local Control Versions

These actuators enable both standalone operation (independent of a PLC network) and integration within a PLC network. They are ideal for applications requiring local manual control with visual feedback.

Available Configurations

• Knob Version — Three LED indicators (power, open, closed), knob movement switch, and key lock-out.
• Push-Button Version — Toggle between remote and local modes, open/stop/close functions, and five LED indicators (power, running open, fully open, running closed, fully closed).
• LED Indicator Version — Switches for mode and position control with LED status for open, close, remote, local, and fault.
• LCD Screen Version — Displays percentage of valve open, movement direction, and includes mode/position control switches with corresponding LED indicators.

All programmable versions support both On/Off and proportional control and maintain the robust NEMA 4X/IP67 enclosure and wide temperature range of the HRSN2 series.

Programmable (local control) valve actuator catalog pages:

• knob, push button, LCD indicator and LCD screen configurations

Common Options Across HRSN Series

• Manual Override Handwheel or Bottom Hex Shaft
• Local Control Stations
• IP68 Submersion rating
• Battery Backup and Supercapacitor Backup
• Additional auxiliary switches
• Proportional control with 4-20mA or 0-10V input
• Feedback potentiometer
• Timer control

Valve Compatibility

HRSN Series actuators are suitable for:

• Ball valves and 3-way ball valves up to 24"
• Butterfly valves up to 24" (depending on model torque)
• Both non-alloy (PVC/CPVC) and alloy valves via ISO 5211 mounting

Contact us for specific valve-actuator matching and torque calculations.