ABB Signature Partner Distributor (Electrification)
ABB - Electrification THQB32050 - Q line circuit breakers are one-inch wide per pole, compact, thermal-magnetic devices designed for residential and commercial applications. The QB breakers are bolt-on versions of the Q Line used for bolting to the bus connections of load centers and lighting panels. All Q Line circuit breakers feature Quick-make / Quick-break mechanisms, common trip bars, and easy to spot trip indication to ensure safety and reliability. Q Line breakers are available in 1, 2, and 3 pole versions, can be ordered with auxiliary contact and shunt trip accessories, and can be ordered for use in HID applications. 2050 Amps 50 A
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ABB Electrification THQB32050 Q line circuit breakers are one-inch wide per pole, compact, thermal-magnetic devices…

UPC: 783164012439


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 THQB32050 is a 3-pole, 50 Amp, 240 Volt AC bolt-on miniature circuit breaker from ABB's Q-Line series. Designed for residential and commercial electrical systems, this thermal-magnetic device provides reliable overcurrent protection with a 10,000 AIC (Ampere Interrupting Capacity) rating, ensuring safe interruption of fault currents up to 10kA. Engineered for direct bolting to the bus connections of load centers and lighting panels, the THQB32050 offers a secure and space-efficient installation with a compact one-inch wide per pole design. Key operational features include Quick-make / Quick-break mechanisms for rapid and decisive circuit interruption, and a common trip bar that ensures all poles trip simultaneously, preventing single-phased conditions. An easily identifiable trip indication aids in quick diagnostics and response during fault events. The breaker is non-interchangeable, providing enhanced safety and preventing unauthorized modifications. The Q-Line series is available in 1, 2, and 3 pole versions and supports auxiliary contact and shunt trip accessories for expanded functionality. The THQB32050 is suitable for use in HID applications and is rated for system voltages of 120VAC, 120/240VAC, and 240VAC. It features a fixed long-time and instantaneous trip function, with a trip style designated as LI. The breaker is also suitable for reverse feed applications, adding flexibility in panel configurations. The THQB32050 is part of ABB's TEY / Q-Line (Bolt-On) product line and is designed for standard continuous current ratings.
  • 3-pole, 50 Amp, 240VAC thermal-magnetic circuit breaker
  • 10,000 AIC (Ampere Interrupting Capacity) rating for fault current protection
  • Compact one-inch wide per pole design for space-efficient installation
  • Quick-make / Quick-break mechanism with common trip bar for simultaneous pole tripping
  • Non-interchangeable design with easy-to-spot trip indication for quick diagnostics

Specifications

Amperage Rating
50A
Application
Thermal Magnetic
Connection Type
Bolt-on
Current Rating
50 A
Frame
Q-Line
Interrupt Rating
10kA@120 Vac / 10kA@120/240 Vac / 10kA@240 Vac
Load Rating
HACR
Mounting Type
Bolt-On
Number of Poles
3
Poles
3
Poles
1, 2, or 3 poles
Series
Q Line
Size
1-inch per pole
Size
One-inch wide per pole
Special Features
Q line circuit breakers are one-inch wide per pole, compact, thermal-magnetic devices designed for residential and commercial applications. The QB breakers are bolt-on versions of the Q Line used for bolting to the bus connections of load centers and lighting panels. All Q Line circuit breakers feature Quick-make / Quick-break mechanisms, common trip bars, and easy to spot trip indication to ensure safety and reliability. Q Line breakers are available in 1, 2, and 3 pole versions, can be ordered with auxiliary contact and shunt trip accessories, and can be ordered for use in HID applications. 2050 Amps 50 A
Standard
E11592
Trip Range
Non-Interchangeable
Trip Type
LI
Voltage Rating
240 Vac
Package Dimensions (L x W x H)
3.5 IN x 3 IN x 3.5 IN
Package Dimensions (L x W x H)
8.89 cm x 7.62 cm x 8.89 cm
Package Weight (Imperial)
1.210 L
Package Weight (Metric)
0.549 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 for this circuit breaker?

The amperage rating for this circuit breaker is 50A.

How many poles does the THQB32050 circuit breaker have?

The THQB32050 circuit breaker has 2 poles.

What type of circuit breakers are these?

These are Q Line miniature circuit breakers, specifically the THQB series, designed for residential and commercial applications.

Is this circuit breaker suitable for reverse feed applications?

Yes, this circuit breaker is suitable for reverse feed applications.

What system voltages are supported by this circuit breaker?

This circuit breaker supports system voltages of 120 VAC, 240 VAC, and 120/240 VAC.

What is the interrupting rating at 240 VAC for this breaker?

The interrupting rating at 240 VAC for this circuit breaker is 10 KAIR.

What type of trip function does this circuit breaker have?

This circuit breaker features a LI trip function, which stands for Long Time and Instantaneous.

What are the dimensions of each pole in the circuit breaker?

Each pole of the Q Line circuit breakers is one inch wide.

Does this circuit breaker have a common trip bar?

Yes, all Q Line circuit breakers feature common trip bars for safety and reliability.

Are protective relays included with this circuit breaker?

No, protective relays are not included with this circuit 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.