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TE Connectivity 7-1393254-2 - Circuit Breakers, Magnetic, Series Trip, Black, Operating Voltage 277 VAC, 20A Current Rating, 2 Pole, Potter & Brumfield W9

TE Connectivity 7-1393254-2 Circuit Breakers, Magnetic, Series Trip, Black, Operating Voltage 277 VAC, 20A Current…

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 TE Connectivity Potter & Brumfield W9 Series 2-Pole Magnetic Circuit Breaker (SKU: 7-1393254-2) delivers precise overcurrent protection for industrial and commercial electrical systems. Rated for 20A at 277VAC, this breaker is engineered for applications requiring reliable circuit interruption under fault conditions. The black housing ensures durability and resistance to environmental factors, including moisture and dust. As part of the W9 series, it offers consistent performance with magnetic trip characteristics for fast response to overcurrent events. With a 2-pole configuration, it protects two separate circuits simultaneously, making it ideal for lighting, HVAC, and machinery applications. The compact design and high interrupt rating ensure safe operation in demanding environments. The 277VAC rating makes it suitable for North American commercial lighting and power distribution systems, while the 20A current rating provides protection for moderate-load circuits. The magnetic trip mechanism ensures rapid response to fault conditions, minimizing equipment damage and downtime. The 2-pole design enables simultaneous protection of two circuits, reducing the need for additional breakers in multi-circuit applications. The Potter & Brumfield W9 series is a trusted choice for engineers and technicians seeking reliable circuit protection in commercial and light industrial settings.
  • 20A current rating for moderate-load circuits
  • 277VAC operating voltage for commercial lighting and power distribution
  • 2-pole configuration for simultaneous protection of two circuits
  • Black housing for durability and resistance to moisture and dust

Specifications

Feature
Number of poles
Feature
Rated current
Feature
Voltage type
Feature
Rated voltage
Feature
Switching function
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 Green

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 Green
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
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 are the available current ratings for W6/W9 series circuit breakers?

The W6/W9 series circuit breakers are available with ratings from 0.2 to 50 amps.

What is the operating temperature range for these circuit breakers?

The operating temperature range for the W6/W9 series is -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 is the calibration behavior regarding rated current?

Breakers will hold 100% of rated current and may trip between 101% and 124% of rated load.

What types of terminal connections are available for W6/W9 breakers?

The W9 series features heavy-duty #10-32 stud connections, while the W6 series offers quick-connect or screw terminals.

How many on/off cycles can these breakers endure?

The circuit breakers are designed for 10,000 on/off cycles, with 6,000 at rated load and 4,000 at no load.

What is the maximum voltage rating for single-phase AC applications?

For single-phase AC applications, the maximum voltage rating is 277V for UL/CSA types and 250V for VDE types.

What is the interrupting capacity for 277V single-phase AC applications?

For 277V single-phase AC applications, the interrupting capacity is 5,000 amps for current ratings up to 20A, and 2,500 amps for ratings 21-50A.

What is the weight of a single pole breaker?

The weight is approximately 2.5 ounces per pole.

What are the available time delay curve options?

Available time delay curves include instantaneous, standard delay, short delay, AC high inrush, and DC high inrush.

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.