ABB Signature Partner Distributor (Electrification)
ABB - Electrification THQL2120ST1 - Shunt Trip breakers provide all the basic features of a standard breaker, plus they provide a connection for an external power shut off switch outside the main breaker. The THQL2120ST1 breaker features a shunt trip, 2 poles, an ampere rating of 20 A, an interrupting rating of 10kAIC, and a voltage rating of 120/240V.
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ABB Electrification THQL2120ST1 Shunt Trip breakers provide all the basic features of a standard breaker, plus they…

UPC: 783164074017


Documents & Media
Specification Sheet

Contact for Pricing

Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.

Overview

The ABB Electrification THQL2120ST1 is a 2-pole Q-Line shunt trip circuit breaker designed for reliable overcurrent protection with remote tripping capabilities. This breaker integrates a shunt trip module, enabling external power disconnection via a separate circuit connected to a momentary or maintained pushbutton. The THQL2120ST1 is rated for 20 Amperes, operates at 120/240V, and delivers a 10kAIC interrupting rating, making it suitable for general circuit protection applications. The 2-pole configuration requires three pole spaces in the electrical panel, ensuring compatibility with standard residential and light commercial installations. The shunt trip feature is critical for applications requiring immediate power disconnection from an external location, such as emergency shut-off systems, automated shutdown sequences, or remote control operations. This breaker is part of ABB's Q-Line series, known for its plug-in design and non-interchangeable trip style. Its design supports reverse feed applications, adding flexibility for various electrical system layouts. The breaker's fixed long-time and instantaneous trip functions provide consistent and predictable protection, while its standard continuous current rating ensures reliable performance under normal operating conditions.
  • 2-pole configuration for 120/240V systems
  • 20A ampere rating with 10kAIC interrupting capacity
  • Shunt trip module for remote power disconnection
  • Requires 3 pole spaces in electrical panel
  • Part of ABB's Q-Line series with non-interchangeable trip style

Specifications

Amperage Rating
20 A
Current Rating
20 A
Number Of Poles
2
Poles
2P
Series
THQL
Special Features
Shunt Trip breakers provide all the basic features of a standard breaker, plus they provide a connection for an external power shut off switch outside the main breaker. The THQL2120ST1 breaker features a shunt trip, 2 poles, an ampere rating of 20 A, an interrupting rating of 10kAIC, and a voltage rating of 120/240V.
Voltage Rating
120/240 V
Package Dimensions (L x W x H)
2.25 IN x 5.125 IN x 5.75 IN
Package Dimensions (L x W x H)
5.715 cm x 13.0175 cm x 14.605 cm
Package Weight (Imperial)
1.512 L
Package Weight (Metric)
0.686 kg
Ground Lug

DNGL

Ground Lug
INTERLOCK UNIT,AR-12M(SEPERATE),GMC(D)-6~16M

83411621001

INTERLOCK UNIT,AR-12M(SEPERATE),GMC(D)-6~16M
ZCT,LZR-030(V),EMPR,EXP

76512124011

ZCT,LZR-030(V),EMPR,EXP
JB5-2 2 POLE JUMPER 5.2MM SPACING

1SNK905302R0000

JB5-2 2 POLE JUMPER 5.2MM SPACING
JB5-5 5 POLE JUMPER 5.2MM SPACING

1SNK905305R0000

JB5-5 5 POLE JUMPER 5.2MM SPACING
One-hole, metric conductor, standard barrel with window lug, 4-6mm wire, M8 stud hole.

LCMA6-8-C

One-hole, metric conductor, standard barrel with window lug, 4-6mm wire, M8 stud hole.

Frequently Asked Questions

What is the amperage rating of the THQL2120ST1 circuit breaker?

The THQL2120ST1 circuit breaker has an amperage rating of 20 A.

What is the interrupting capacity of this circuit breaker?

The interrupting capacity rating for this circuit breaker is 10 kA.

What is the voltage rating for the THQL2120ST1 breaker?

The voltage rating for this circuit breaker is 120/240 V.

How many poles does the THQL2120ST1 circuit breaker have?

The THQL2120ST1 circuit breaker has 2 poles.

What type of circuit breaker is the THQL2120ST1?

The THQL2120ST1 is a Q-Line circuit breaker with a shunt trip.

What additional feature does a shunt trip breaker offer?

Shunt trip breakers provide a connection for an external power shut out switch outside the main breaker.

Frequently Asked Questions about ABB - Electrification

What industries and applications are Jokab Safety products used for?

Jokab Safety products are specifically designed for machine safety applications across multiple critical industrial sectors, including Food and Beverage, Packaging, and Material Handling industries. Their safety solutions cover a wide range of machine safeguarding needs, such as safety light guards, safety controllers, safety relays, safety edges, safety mats, and two-hand control devices that protect personnel and equipment in complex industrial automation environments.

What technical support does Jokab Safety offer?

Jokab Safety offers comprehensive technical support through multiple channels, including a dedicated technical support phone line at (888) 385-1221 (Option 1) and email support at [email protected]. For advanced technical assistance, customers can contact their specialized Jokab Tech Support at (519) 982-0976 or email [email protected]. Additionally, they provide product specialist support through Jeff Leslie, who can be reached at (519) 982-0976, offering in-depth application and technical guidance.

What are the main product lines offered by Jokab Safety?

Jokab Safety offers a comprehensive range of machine safety products including safety light guards (Orion), safety controllers (Pluto), safety relays (Sentry), safety edges, safety contact mats, safety locks (Gkey), and safety sensors with OSSD and DYNlink interfaces. Their product lines are specifically designed for industrial applications in food and beverage, packaging, and material handling industries, providing robust safety solutions for machine guarding and personnel protection.

What are the key features of Jokab Safety products?

Jokab Safety products offer comprehensive industrial safety solutions with key features including: highest safety certification levels (up to PL e/Cat 4), extensive fault detection, multiple safety device types (optical safety devices, pressure sensitive devices, sensors, switches, locks, emergency stops), and innovative DYNlink technology that reduces cable requirements and simplifies installation. Their products are certified, verified, and compatible with major industrial automation systems like B&R, featuring easy M12 connector connections and a wide range of adapters to streamline safety implementation.

What certifications and standards do ABB - Electrification products comply with?

ABB - Electrification products comply with a comprehensive range of international certifications and standards, including UL (United States), CSA (Canada), CE (European Community), UKCA (United Kingdom), EAC (Russia), and C-Tick (Australia & New Zealand). Our products meet critical international standards such as IEC 60947 series for low-voltage switchgear, functional safety standards EN 61800-5-2 and ISO 13849-1, and marine classification standards from Bureau Veritas, DNV, and Lloyd's Register of Shipping.

What industries and applications are ABB - Electrification products used for?

ABB - Electrification products are engineered for critical applications across multiple industries, including Energy, Oil & Gas, Manufacturing, Power Generation, HVAC, Marine, Food & Beverage, Mining, Pulp & Paper, Water Treatment, and Automotive. Their solutions cover essential electrical infrastructure needs such as switchgear, power distribution systems, circuit protection, digital control technologies, and drive systems designed for high-reliability environments with a strong focus on sustainability, efficiency, and safety.

What technical support does ABB - Electrification offer?

ABB - Electrification offers comprehensive technical support through multiple channels, including a dedicated technical support hotline at 888-385-1221 (Option 1), available 7:00 a.m. - 5:00 p.m. CST, Monday-Friday. Their support services encompass 24/7/365 emergency services, on-site support, remote monitoring and diagnostics, installation and commissioning, equipment assessments, repair coordination, and multi-vendor technical assistance. Customers can also access resources like personnel safety training, disaster recovery support, and service agreements tailored to their specific electrification needs.

What are the main product lines offered by ABB - Electrification?

ABB - Electrification offers a comprehensive range of electrical distribution and protection products, including circuit monitoring systems, panelboards, switchgear, motor control centers, circuit breakers, softstarters, and power distribution solutions. Key product lines span low and medium voltage applications across utilities, commercial, industrial, healthcare, and manufacturing sectors, with specialized offerings like the ReliaGear® panelboards, SMISSLINE TP bus systems, and Ekip UP protection and metering relays.

What are the key features of ABB - Electrification products?

ABB - Electrification products feature advanced integrated design elements that enhance industrial performance and reliability. Key features include harmonics and EMC design, integrated DC choke, removable terminals for fast installation, USB ports for troubleshooting, and integrated Safe Torque Off (STO) functionality. The products deliver superior motor control capabilities, support both induction and permanent magnet motors, and offer robust operational features like side-by-side mounting without derating and operation at temperatures up to 45°C. Additionally, ABB's Electrification solutions emphasize digital innovation, with technologies like Novolink enabling predictive maintenance, enhanced analytics, and seamless system integration.

What communication protocols do ABB - Electrification products support?

ABB - Electrification products support a comprehensive range of industrial communication protocols, including Modbus RTU, PROFIBUS DP, PROFINET, EtherNet/IP, CANopen, DeviceNet, and IEC 61850. These protocols enable flexible connectivity across multiple industrial automation platforms, with support for various network topologies and high-speed data transmission up to 100 Mbps.