ABB - Electrification Signature Partner Distributor
ABB - Electrification THQB1140 - 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. 1140 Amps 40 A
ABB - Electrification

THQB1140

UPC: 783164012200


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Specification Sheet

Contact for Pricing

Overview

The ABB THQB1140 is a 40-ampere, 1-pole bolt-on circuit breaker from the Q Line series, engineered for direct installation onto bus connections in residential and commercial load centers and lighting panels. This compact thermal-magnetic device features a one-inch width per pole, optimizing space in electrical panels where real estate is at a premium. The THQB1140 delivers 10,000 AIC (Amperes Interrupting Capacity) for robust fault protection, ensuring reliable operation under overload and short-circuit conditions. Designed for compliance with UL 489 and cUL standards, the THQB1140 operates at 120/240 Vac and includes a Quick-make/Quick-break mechanism for consistent performance. Its common trip bar ensures balanced protection in multi-pole configurations, while the easy-to-spot trip indicator enables rapid fault identification. The breaker is available in 1, 2, or 3 pole versions (THQB1140, THQB21404, THQB32040) to accommodate diverse applications, from single-phase lighting circuits to three-phase motor loads. For enhanced functionality, the THQB1140 supports auxiliary contacts and shunt trip accessories, with HID-rated configurations available for high-intensity discharge lighting systems. Built for direct bolt-on mounting, this breaker eliminates the need for additional hardware, streamlining installation and reducing downtime. Whether used in new installations or panel upgrades, the THQB1140 exemplifies ABB’s commitment to safety, reliability, and precision in low-voltage circuit protection. The 40A rating makes it ideal for branch circuits, lighting panels, and small appliance feeders in commercial and industrial settings.
  • 40A thermal-magnetic circuit breaker for 120/240V applications
  • 10,000 AIC fault protection with Quick-make/Quick-break mechanism
  • 1-inch wide per pole for compact residential/commercial panel installation
  • Bolt-on design for direct bus connection in load centers and lighting panels
  • UL 489 and cUL compliant with easy-to-spot trip indication

Specifications

Connection Type
Bolt-on
Current Rating
40 A
Mounting Type
Bolt-on to bus connections
Poles
1
Series
Q Line
Size
1-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. 1140 Amps 40 A
Voltage Rating
120/240 Vac
Package Dimensions (L x W x H)
1 IN x 3.625 IN x 3.5 IN
Package Dimensions (L x W x H)
2.54 cm x 9.2075 cm x 8.89 cm
Package Weight (Imperial)
0.312 L
Package Weight (Metric)
0.142 kg
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.
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
Ground Lug

DNGL

Ground Lug
ZCT,LZR-030(V),EMPR,EXP

76512124011

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

83411621001

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

Frequently Asked Questions

What is the interrupting capacity of the THQB1140?

The THQB1140 has an interrupting capacity of 10,000 AIC, providing robust protection against short circuits.

What voltage does the THQB1140 support?

The THQB1140 operates at 120/240 Vac, suitable for residential and commercial applications.

Is the THQB1140 available in multi-pole configurations?

Yes, the THQB1140 is available in 1, 2, or 3 pole versions (THQB1140, THQB21404, THQB32040) for diverse applications.

What standards does the THQB1140 comply with?

The THQB1140 is UL 489 and cUL compliant, ensuring it meets rigorous safety and performance standards.

What is the mounting type for the THQB1140?

The THQB1140 features bolt-on mounting, designed for direct installation onto bus connections in panels.

What is the width of the THQB1140?

The THQB1140 is one-inch wide per pole, making it compact and space-efficient for panel installations.

Does the THQB1140 support auxiliary accessories?

Yes, the THQB1140 can be ordered with auxiliary contacts and shunt trip accessories for enhanced functionality.

Can the THQB1140 be used in HID lighting applications?

Yes, HID-rated configurations of the THQB1140 are available for compatibility with high-intensity discharge lighting systems.

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.