
TE Connectivity 7-1393254-9 Circuit Breakers, Magnetic, Series Trip, Black, Operating Voltage 277 VAC, 40A Current…
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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
- TE Connectivity Potter & Brumfield W9 Series
- 2-Pole Magnetic Circuit Breaker
- 40A Current Rating
- 277 VAC Operating Voltage
- Black Housing, Made in US
Specifications
Color | Black |
Current Rating | 40 A |
Feature | Number of poles |
Feature | Rated current |
Feature | Voltage type |
Feature | Rated voltage |
Feature | Switching function |
Poles | 2 |
Series | Potter & Brumfield W9 |
Voltage Rating | 277 VAC |

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
What are the available current ratings for these circuit breakers?
The W6/W9 series circuit breakers are available with ratings from 0.2 Amps up to 50 Amps.
What is the operating temperature range for these circuit breakers?
These circuit breakers can operate in a temperature range from -40°C to +85°C.
What agency approvals do the W6/W9 series circuit breakers have?
They are UL Recognized (UL1077), CSA accepted, and VDE approved.
What types of terminal connections are available for the W6 series?
The W6 series offers quick-connect terminals or screw terminals for connections.
What types of terminal connections are available for the W9 series?
The W9 series features heavy duty #10-32 stud connections.
What are the dielectric strength ratings for the breakers?
The dielectric strength is 1500V at 50/60 Hz and 1100V DC.
What is the insulation resistance of the circuit breakers?
The insulation resistance is rated at 100 Megaohms when measured at 500VDC.
What is the expected endurance of these circuit breakers?
The breakers are designed for 10,000 on/off cycles, with 6,000 cycles at rated load.
What is the maximum voltage rating for VDE approved breakers?
VDE approved breakers have maximum voltage ratings of 65V DC, 250V AC (1-phase), and 415/240V AC (3-phase).
What is the maximum voltage rating for UL/CSA approved W6 breakers?
UL/CSA approved W6 breakers have maximum voltage ratings of 65V DC, 277V AC (1-phase), and 277/480V AC (3-phase).
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.

















