https://www.arcteq.com/product/aq-s254-alarm-and-indication-device/
AQ-S254 Alarm and Indication Device - Arcteq
Mar 17, 2026 - The AQ-S254 alarm and indication device can be applied to various substation tasks: extending the general I/O, sounding alarms, and control.
aqalarmindicationdevicearcteq
https://www.arcteq.com/product/aq-p215-power-monitoring-device/
AQ-P215 Power Monitoring Device - Arcteq
Jan 14, 2026 - AQ-P215, for demanding metering and power monitoring applications, combining high measurement accuracy and a dynamic measurement range.
power monitoringaqdevicearcteq
https://www.arcteq.com/product/aq-f255e-line-protection-device/
AQ-F255E Line Differential and Distance Protection Device - Arcteq
Mar 17, 2026 - AQ-F255E line protection solution with feeder protection for line protection and control applications that require a large I/O capacity.
protection deviceaqlinedifferentialdistance
https://www.arcteq.com/product/aq-t215-voltage-regulating-device/
AQ-T215 Transformer Protection Device - Arcteq
Jan 14, 2026 - AQ-T215 voltage regulating device with protection functions for combined transformer voltage regulation and back-up protection.
protection deviceaqtransformerarcteq
https://www.arcteq.com/product/aq-r215-railway-protection-device/
AQ-R215 Railway Protection Device - Arcteq
Jan 14, 2026 - AQ-R215 Railway protection device: a three-phase feeder protection device that can be run either in Standard feeder mode or in Railway mode.
protection deviceaqrailwayarcteq
https://www.arcteq.com/welcome-to-register-to-arcteqs-product-training-2/
Join Our Technical Product Training in October - Arcteq
Aug 11, 2025 - Arcteq's free product training including product introductions and extensive hands-on sessions, is your chance to learn from our specialists.
technical productjointrainingoctoberarcteq
https://www.arcteq.com/product/aq-f350-feeder-protection-device/
AQ-F350 Feeder Protection Device - Arcteq
Dec 15, 2025 - The AQ-F350 feeder protection device is designed and manufactured for the most demanding feeder protection applications.
protection deviceaqfeederarcteq
https://www.arcteq.com/product/aq-t392-two-winding-transformer-protection-device/
AQ-T392 Two-Winding Transformer Protection Device - Arcteq
Dec 15, 2025 - AQ-T392 Two-winding transformer protection device is a transformer protection device for two-winding transformer applications.
protection deviceaqtwowindingtransformer
https://www.arcteq.com/product/aq-102lv-arc-flash-protection-device/
AQ-102LV Arc flash protection device - Arcteq
Oct 22, 2025 - The AQ-102LV arc flash protection device is a sophisticated microprocessor-based arc flash protection unit for arc light detection.
arc flashprotection deviceaqarcteq
https://www.arcteq.com/arcteq-aq100-new-release/
New functions and features in AQ 100 series - Arcteq
Sep 16, 2025 - New functions and features including Rogowski sensor support and Modbus communication released in the Arcteq AQ 100 series.
new functionsfeaturesaqseriesarcteq
https://www.arcteq.com/career-at-arcteq/
Careers - Arcteq We offer jobs that matter for talents that matter.
Jan 16, 2026 - We offer jobs that matter for talents that matter. Send us an open application, and take your first step in joining the Arcteq/Ensto family!
careersarcteqofferjobsmatter
https://www.arcteq.com/product/aq-110xlv/
AQ-110xLV Arc Flash Protection Devices (Main Units) - Arcteq
Sep 11, 2025 - AQ-110xLV arc flash protection devices have current and light sensing, and support Rogowski sensors and Modbus RTU communication.
arc flashprotection devicesaqmainunits
https://www.arcteq.com/product/aq-101lv-arc-flash-protection-device/
AQ-101LV Arc flash protection device - Arcteq
Oct 22, 2025 - AQ-101LV arc flash protection device is designed to minimize the damage caused by an arcing fault (arc flash).
arc flashprotection deviceaqarcteq
https://www.arcteq.com/protection-relays/alarm-annunciators/
Alarm annunciators - Arcteq
Nov 10, 2022 - The alarm annunciators enable display of collected substation alarms, which can be collected either by hard wire or GOOSE protocol.
alarmarcteq
https://www.arcteq.com/protection-relays/capacitor-bank-protection/
Capacitor bank protection - Arcteq
Jun 14, 2023 - Arcteq offers dedicated devices for capacitor bank protection, both automatic and manual power factor control applications.
capacitorbankprotectionarcteq
https://www.arcteq.com/product/fault-detection-devices/
Fault detection devices - Arcteq
Oct 16, 2025 - Arcteq's fault detection products (AQ-50) provide cost-efficient fault detection for low fault currents, making sure no fault goes unnoticed!
fault detectiondevicesarcteq
https://www.arcteq.com/contact-us/
Contact us - Arcteq
Feb 10, 2025 - Find your local contact person or get in touch with us directly at Arcteq Finland. In technical problems, contact our technical support.
usarcteq
https://www.arcteq.com/support-login/
Support Login - Arcteq
Apr 23, 2026 - Restricted access. Please login. PLEASE NOTE! We have currently technical issues with login to our support […]
supportarcteq
https://www.arcteq.com/customer-corner/
Customer corner - Arcteq
Jan 16, 2026 - Additional downloadable content for our customers, such as product release materials, product notifications, and product photos.
customercornerarcteq
https://www.arcteq.com/product/aq-g257x-generator-protection-device/
AQ-G257 Generator Protection Device - Arcteq
Jan 14, 2026 - The AQ-G257x generator protection device: for large machines that require complete generator protection and differential protection.
protection deviceaqgeneratorarcteq
https://www.arcteq.com/product/aq-1000-arc-quenching-device/
AQ-1000 Arc quenching device (low-voltage) - Arcteq
Oct 22, 2025 - AQ-1000 arc quenching device, designed to limit the total arcing time to 5 ms and to minimize (or eliminate) the damaging arc fault effects.
low voltageaqarcdevice
https://www.arcteq.com/product/aq-103-arc-falsh-protection-device/
AQ-103 Arc flash protection device - Arcteq
Oct 22, 2025 - AQ-103 arc flash protection device is a sophisticated microprocessor-based arc flash protection unit for arc light detection.
arc flashprotection deviceaqarcteq
https://www.arcteq.com/product/aq-s391-bay-control-device/
AQ-S391 Bay Control Device - Arcteq
Dec 15, 2025 - The AQ-S391 bay control device with control and monitoring for a full diameter of single, double, or one-and-a-half CB busbar configurations.
aqbaycontroldevicearcteq
https://www.arcteq.com/product/aq-s215-bay-control-device/
AQ-S215 Bay Control Device - Arcteq
Jan 14, 2026 - The AQ-S215 bay control device with full current, voltage, power and energy measurement capabilities, for various control application types.
aqbaycontroldevicearcteq
https://www.arcteq.com/protection-relays/generator-protection-control/
Generator protection and control - Arcteq
Dec 19, 2025 - Arcteq's generator protection and control devices cover all requirements for anything from medium-sized to large generator applications.
generatorprotectioncontrolarcteq
https://www.arcteq.com/references/port-of-stockholm-sweden/
Port of Stockholm supplied with feeder protection units and arc protection systems - Arcteq
Mar 23, 2023 - Arcteq AQ 200 series IEDs and AQ 100 series arc protection systems are applied in Stockholm's main Port, Värtahamnen.
portstockholmsuppliedfeederprotection
https://www.arcteq.com/product/aq-v211-voltage-protection-device/
AQ-V211 Voltage Protection Device - Arcteq
Jan 14, 2026 - The AQ-V211 voltage protection device offers a modular voltage protection solution for substations, with anti-islanding protection.
protection deviceaqvoltagearcteq
https://www.arcteq.com/product/aq-f210-feeder-protection-device/
AQ-F210 Feeder Protection Device - Arcteq
Jan 14, 2026 - The AQ-F210 feeder protection device with non-directional overcurrent and earth fault protections with automatic reclosing.
protection deviceaqfeederarcteq
https://www.arcteq.com/product/aq-50-accessories/
AQ-50 accessories - Arcteq
May 17, 2024 - Arcteq's fault detection products provide cost-efficient fault detection for low fault currents, making sure no fault goes unnoticed!
aqaccessoriesarcteq
https://www.arcteq.com/product/fiber-loop-sensors/
Fiber loop sensors - Arcteq
Oct 22, 2025 - Arcteq's fiber loop sensors: plastic fiber loop sensor, glass fiber loop sensor and glass fiber loop sensor for high temperature applications.
fiberloopsensorsarcteq
https://www.arcteq.com/product/aq-m257x-motor-protection-device/
AQ-M257 Motor Protection Device - Arcteq
Jan 14, 2026 - The AQ-M257x motor protection device for larger and more important motors that require differential protection.
motor protectionaqdevicearcteq
https://www.arcteq.com/
Front page - Arcteq
Mar 24, 2026 - Arcteq: high-quality arc flash protection products and industry-leading support and service from the Nordic energy cluster hub in Finland.
frontarcteq
https://www.arcteq.com/product/aq-103lv-arc-flash-protection-device/
AQ-103LV Arc flash protection device - Arcteq
Oct 22, 2025 - AQ-103LV arc flash protection device is designed to minimize the damage caused by an arcing fault (arc flash).
arc flashprotection deviceaqarcteq
https://www.arcteq.com/product/aq-g357-generator-protection-device/
AQ-G357 Generator protection device - Arcteq
Jan 4, 2024 - AQ-G357 is a generator protection device for synchronized machines of all sizes, with a full range of generator protection functions.
protection deviceaqgeneratorarcteq
https://www.arcteq.com/news-and-events/
News & Events - Arcteq
Mar 20, 2025 - News from Arcteq's latest adventures and accomplishments in the wondrous world of arc flash protection and protection relays.
news eventsarcteq
https://www.arcteq.com/references/more-than-2000-relays-supplied-to-tnb-malaysia/
Over 2,000 arc protection relays supplied to TNB Malaysia - Arcteq
Mar 23, 2023 - More than 50 number of 33 and 11 kV substations are currently installed and commissioned using the AQ 100 arc protection system.
arcprotectionrelayssuppliedtnb
https://www.arcteq.com/product/aq-t216-transformer-protection-device/
AQ-T216 Transformer Protection Device - Arcteq
Jan 14, 2026 - AQ-T216 is a transformer protection device with sophisticated and easy-to-use differential protection functions.
protection deviceaqtransformerarcteq
https://www.arcteq.com/product/aq-s214-alarm-and-indication-device/
AQ-S214 Alarm and Indication Device - Arcteq
Dec 15, 2025 - The AQ-S214 alarm and indication device can be applied to various substation tasks, such as extending the general I/O, and sounding alarms.
aqalarmindicationdevicearcteq
https://www.arcteq.com/product/aq-f201-overcurrent-and-earth-fault-device/
AQ-F201 Overcurrent and Earth Fault Device - Arcteq
Jan 14, 2026 - The AQ-F201 overcurrent and earth fault device is a compact solution when non-directional overcurrent and earth fault protections are needed.
aqearthfaultdevicearcteq
https://www.arcteq.com/product/aqtivate-200/
AQtivate 200 setting and configuration tool - Arcteq
Dec 7, 2022 - AQtivate 200 is a setting and configuration software suite for AQ 200 series products. It can be downloaded for free on our website.
settingconfigurationtoolarcteq
https://www.arcteq.com/references/south-korean-built-lng-vessel-protected-by-arcteq-2/
South Korean built LNG vessel protected by Arcteq arc protection systems - Arcteq
south koreanbuiltlngvesselprotected
https://www.arcteq.com/product/aq-f255b-line-differential-protection-device/
AQ-F255B Line Differential Protection Device - Arcteq
Jan 16, 2026 - The AQ-F255B feeder and line protection device, a modular solution for line differential applications that require a large I/O capacity.
protection deviceaqlinedifferentialarcteq
https://www.arcteq.com/protection-relays/aqtivate-software/
Software - Arcteq
softwarearcteq
https://www.arcteq.com/product/aq-v251-voltage-protection-device/
AQ-V251 Voltage Protection Device - Arcteq
Jan 14, 2026 - The AQ-V251x voltage protection device offers a modular solution for substations, with a large I/O capacity and a synchronizer option.
protection deviceaqvoltagearcteq
https://www.arcteq.com/company/
Arcteq is a pioneer in arc flash protection Company - Arcteq
Dec 10, 2025 - Arcteq is a pioneer in arc flash protection, and we are known for making the most accurate protection relays in the world.
arc flasharcteqpioneerprotectioncompany
https://www.arcteq.com/product/aq-f255-feeders/
AQ-F255 Feeder Protection Devices - Arcteq
Jan 16, 2026 - The AQ-F255 feeder protection device, a modular feeder protection and control solution with four variants for different applications.
protection devicesaqfeederarcteq
https://www.arcteq.com/product/aq-t256-transformer-protection-device/
AQ-T256 Transformer Protection Device - Arcteq
Jan 14, 2026 - AQ-T256 is a transformer protection device with sophisticated and easy-to-use differential protection functions.
protection deviceaqtransformerarcteq
https://www.arcteq.com/protection-relays/railway-protection/
Railway protection - Arcteq
Nov 18, 2022 - Arcteq's railway protection device offers three-phase feeder protection and Railway mode with a single-phase functionality.
railwayprotectionarcteq
https://www.arcteq.com/product/aq-f255d-distance-protection-device/
AQ-F255D Distance Protection Device - Arcteq
Mar 17, 2026 - AQ-F255D distance protection solution with feeder protection for line protection and control applications that require a large I/O capacity.
protection deviceaqdistancearcteq
https://www.arcteq.com/product/aq-t393-transformer-protection-device/
AQ-T393 Three-Winding Transformer Protection Device - Arcteq
Dec 15, 2025 - AQ-T393 three-winding transformer protection device is a transformer protection device for three-winding transformer applications.
protection deviceaqthreewindingtransformer
https://www.arcteq.com/product/aq-102-arc-flash-protection_device/
AQ-102 Arc flash protection device - Arcteq
Oct 22, 2025 - AQ-102 arc flash protection device is designed to minimize the damage caused by an arcing fault (arc flash).
arc flashprotection deviceaqarcteq
https://www.arcteq.com/product/aq-s255-bay-control-device/
AQ-S255 Bay Control Device - Arcteq
Mar 17, 2026 - AQ-S255x bay control device for demanding control applications: full measurements, and the B variant includes parallel voltage regulation.
aqbaycontroldevicearcteq
https://www.arcteq.com/product/aq-f215-feeder-protection-device/
AQ-F215 Feeder Protection Device - Arcteq
Jan 14, 2026 - The AQ-F215 feeder protection device with both current-based and voltage-based protections as well as complete measurements.
protection deviceaqfeederarcteq
https://www.arcteq.com/product/aq-101d-arc-flash-protection/
AQ-101D Arc flash protection device - Arcteq
Oct 22, 2025 - AQ-101D is a sophisticated microprocessor-based arc flash protection device, designed to minimize the damage caused by an arcing fault.
arc flashprotection deviceaqarcteq
https://www.arcteq.com/product/aquench-arc-quenching-devices/
AQuench Arc quenching devices (MV) - Arcteq
Oct 23, 2025 - AQuench is an arc quenching device which extinguishes arcing faults within 5 milliseconds of arc initiation.
arcdevicesmv
https://www.arcteq.com/privacy-policy/
Privacy policy - Arcteq
Oct 24, 2025 - Arcteq's privacy policy, including cookies, embedded content as well as data collection, and sharing with third parties.
privacy policyarcteq