IQ Range - Electrical Data for 3-Phase Power Supplies - Section Introduction

Oct 28, 2026

Guide provides averaged electrical consumption data for Rotork IQ Range actuators used to size actuator power supply cables and circuit protection, and to calculate electrical diversity. Data covers standard duty three-phase supplies at common 50 Hz and 60 Hz voltages, while notes explain limits when test data is unavailable or builds cannot be produced due to excess current draw. Additional sections define relevant electrical terms and describe design philosophy and protection approach.

LanguageEnglish

CategoryTechnology

FormatPDF

Pages20

Reading Time50 min

AccessFree to download

Introduction

Electrical Consumption Data

50 Hz Voltages

60 Hz Voltages

Important Notes

Glossary

Design Philosophy

Motor Design

Motor Control Protection

IQ Range Electrical Data for 3-Phase Power Supplies Section Page Introduction 3 Electrical Consumption Data 50 Hz 380 V 5 400 V 6 415 V 7 440 V 8 500 V 9 690 V 10 60 Hz 208 V 11 220 V 12 400 V 13 440 V 14 460 V 15 480 V 16 575 V 17 600 V 18 Rotork is the global market leader in valve automation and flow control. Our products and services are helping organisations around the world to improve efficiency, assure safety and protect the environment. We strive always for technical excellence, innovation and the highest quality standards in everything we do. As a result, our people and products remain at the forefront offlow control technology. Uncompromising reliability is a feature of our entire product range, from our flagship electric actuator range through to our pneumatic, hydraulic and electro-hydraulic actuators, as well as instruments, gear boxes and valve accessories . Rotork is committed to providing first class support to each client throughout the whole life of their plant, from initial site surveys to installation, maintenance, audits and repair. From our network of national and international offices, our engineers work around the clock to maintain our position of trust. 2 IQ Range Electrical Data This guide is provided to assist in the sizing of actuator power supply cables, circuit protection devices and calculation of electrical diversity. The data provided is averaged from actuators of the same size, speed and voltage as recorded from production test data. As such it is not exact electrical data for individual actuators, however is sufficient for the above sizing calculations . Test certificates for individual actuators provide unit specific loadings for the starting/stall and rated torque levels and are available when requested. The data included is for standard duty, 3-phase supplies atthe following common voltages only: | 50 Hz | 60 Hz | | --- | --- | | 380 | 208 | | 400 | 220 | | 415 | 400 | | 440 | 440 | | 500 | 460 | | 690 | 480 | | - | 575 | | - | 600 | Actuators suitable for voltages other than shown above are available on request. In such cases, electrical supply sizing can be determined by using the nearest voltage published in this document. To quickly access the data for your voltage, click the value in the table above. Important Notes • ‘Test data not available’ – insufficient test data available • ‘Not available at this voltage’ – this particular build cannot be produced due to excess current draw Glossary • Rated torque – the catalogued torque output of the actuator at full load. Represents a torque switch setting of 100% • Starting / Stall – current draw at the nominal rated voltage during the initial start of output movement or under motor stall conditions . IQ standard protection prevents stall by limiting torque to approximately 150% of rated torque when torque switch bypass feature is enabled. Stall is also limited to a maximum of 5 seconds • Rated Torque Current – the average current draw at the nominal rated voltage when the actuator is producing the rated catalogue torque • Average (nominal) Torque – corresponds to approximately one third of the rated catalogued torque. This value has been confirmed after decades of valve automation and provides a representative average for load across typical valve strokes • Average (nominal) Current – current draw at nominal rated voltage for average nominal torque (one third rated torque) Design Philosophy Actuators designed for valve automation have bespoke characteristics . Unlike conventional motors, actuators are only short time duty rated. As continuous running is not a requirement with ‘isolating’, ‘inching’ and ‘regulating’duty valves, actuators are rated for a standard 15 minute nominal operating time with a cyclic duration factor of 25%(S2 / S3), or Class A & B as per EN15714-2 Industrial ValvesActuators (Part 2: Electric actuators for industrial valvesBasic require

FAQs

What is the purpose of this IQ Range electrical data guide?

It supports sizing of actuator power supply cables, circuit protection devices, and calculation of electrical diversity using provided averaged data.

Why are the electrical values not exact for every individual actuator?

The figures are averaged from actuators of the same size, speed, and voltage based on production test data, so they are sufficient for sizing but not unit-specific exact data.

What do the important notes mean for unavailable test data and unavailable builds?

“Test data not available” indicates insufficient test data, while “Not available at this voltage” means the build cannot be produced due to excess current draw.

Oct 28, 2026

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