
TE Connectivity 7-1393246-4 Circuit Breakers, Thermal, Series Trip, Black, Operating Voltage 240 VAC, Operating…
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Contact for Pricing
Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.
Overview
- 40A current rating for high-power industrial applications
- Dual voltage compatibility: 240VAC and 50VDC
- Thermal series trip mechanism for precise overcurrent protection
- Durable black housing for harsh industrial environments
- 1-pole design for easy installation in control panels and machinery
Specifications
Color | Black |
Current Rating | 40 A |
Series | Potter & Brumfield W23-31 |
Series | W23-31 |
Voltage Rating | 240 VAC / 50 VDC |

54108NT
Copper One-Hole Lug, Standard Barrel Narrow Tongue, Peep Hole, Max 35kV, Wire Size #1 AWG, 1/4 Inch Bolt Size, Tin Plated, Die Code 37, Die Color Code GreenFrequently Asked Questions
Can this circuit breaker be reset against an overload?
No, this circuit breaker cannot be reset against an overload.
What type of terminals does this circuit breaker use?
This circuit breaker uses two #8-32 screw terminals.
What are the maximum operating voltages for this circuit breaker?
The maximum operating voltages are 50VDC or 240VAC (to 400 Hz).
What are the maximum operating voltages for this circuit breaker?
The maximum operating voltages are 50VDC or 240VAC (to 400 Hz).
What type of terminals does this circuit breaker use?
This circuit breaker uses two #8-32 screw terminals.
Can this circuit breaker be reset against an overload?
No, this circuit breaker cannot be reset against an overload.
What agency approvals does the W23 and W31 series have?
They are UL 1077 Recognized and CSA Accepted as Supplementary Protectors.
What are the mounting bushing diameters for W23 and W31 series breakers?
The W23 series has a 3/8" (9.53mm) diameter bushing, and the W31 series has a 15/32" (11.91mm) diameter bushing.
What is the interrupting capacity of the 0.5-25 amp models without fuse protection?
The interrupting capacity is 2000 amps at 50VDC without series fuse protection.
What is the interrupting capacity of the 0.5-50 amp models with fuse protection?
The interrupting capacity is 1000 amps at 240VAC when used with 4X max. series fuse protection.
Frequently Asked Questions about TE Connectivity
What technical support does TE Connectivity offer?
TE Connectivity offers comprehensive technical support through multiple channels, including a dedicated technical hotline at 1-800-777-3300. The company provides advanced technical support with 3 dedicated support centers, a global technical hotline network, and delivers over 8,000 hours of technical training annually to ensure certified expertise across 25+ languages.
What environmental ratings do TE Connectivity products have?
TE Connectivity products feature robust environmental ratings across multiple standards, including NEMA Type 1, 2, 3, 3R, 4, 4X, 12, and 13 certifications, as well as IEC 60529 IP66 protection. Our enclosures are designed to withstand challenging industrial environments, with operating temperatures ranging from -40°C to 130°C, and include enhanced UV inhibitors for outdoor applications.
What certifications and standards do TE Connectivity products comply with?
TE Connectivity products meet rigorous international certifications and standards across industrial automation applications, including UL (United States), CSA (Canada), CE (European Community), and international safety standards. Our product lines are designed to comply with critical industrial certifications such as NEMA (Types 4, 4X, 6, 6P), IP ratings (IP65, IP66, IP67, IP69K), and industrial communication protocols including PROFINET, EtherNet/IP, and DeviceNet. We ensure comprehensive compliance through active participation in key industrial standards committees and maintaining ISO 9001 quality system certification.
What industries and applications are TE Connectivity products used for?
TE Connectivity products are engineered for critical industrial applications across multiple sectors, including industrial device manufacturing, automotive, robotics, food and beverage, material handling, alternative energy, and commercial vehicle industries. Their solutions span connectivity, power distribution, network communications, and sensor technologies that support complex industrial automation requirements, with a focus on robust connectivity solutions for challenging manufacturing environments.
What are the main product lines offered by TE Connectivity?
TE Connectivity offers a comprehensive range of industrial connectivity solutions including Cable Ties, Cable Cleats, Power Connectors, Grounding Connectors, Terminals, Safety Solutions, Identification Products, and Wiring Duct. Their product lines are designed for robust industrial applications, featuring various connection technologies like wave soldering, spring-cage connections, and mis-insertion protection across multiple electrical and connectivity categories.
What accessories are available for TE Connectivity products?
TE Connectivity offers a comprehensive range of communication and bus accessories for industrial automation systems, including communication terminal boards (CTB810, CTB811), bus extenders (horizontal and vertical models like cHBX01L/R, HBX01L/R, VBX01T/B), and bus terminators (TER800, TER810). These accessories are designed to enhance connectivity, power distribution, and communication capabilities for HN800 and CW800 controller systems, with options for left/right side mounting, power connections, and network termination.
How are TE Connectivity products typically installed?
TE Connectivity products are typically installed through professional commissioning services that include site audits, precise wiring verification, and both remote and on-site installation support. Our expert service engineers conduct comprehensive installation processes involving system verification, programming, communication testing, and personnel training to ensure optimal performance and reliability of the equipment.

















