ABB - Electrification Signature Partner Distributor
ABB - Electrification 254V644P1 - Molded Case Circuit Breaker, External Accessories, Breaker Mounting Screw Kits and Accessories. Cup washer (for mounting 1-pole breakers). 2 required per breaker.
ABB - Electrification

254V644P1

UPC: 783164026993


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Specification Sheet

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Overview

The ABB 254V644P1 Cup Washer is a critical accessory for the secure mounting of ABB E150 1-pole molded case circuit breakers in industrial and commercial panelboard applications. Designed for use with tapped-hole mounting plates, this cup washer ensures a stable and vibration-resistant connection between the breaker and the mounting surface. Each 1-pole E150 breaker requires two (2) of these washers for proper installation, as specified in ABB’s factory-approved mounting hardware kits. Key specifications include compatibility with ABB E150 1-pole breakers only, as part of the SEMSK4 mounting screw kit (343L162G7) for tapped-hole applications. The washer is EUSERC-approved and manufactured in the USA, adhering to ABB’s stringent quality standards for electrical distribution components. It is not suitable for group-mounted panelboards except for specific models like J600, K1200, SE150/SF250, SG600, and SK1200, where it screws directly to the breaker face. This cup washer is an essential component for maintaining electrical integrity in panelboard construction, preventing loosening of mounting hardware due to vibration or thermal cycling. Its design aligns with ABB’s commitment to reliable circuit protection and efficient assembly in industrial electrical systems. For professional installations requiring genuine ABB accessories, the 254V644P1 ensures compatibility and long-term performance in demanding environments.
  • Designed for ABB E150 1-pole molded case circuit breakers only
  • Required in pairs (2 per breaker) for tapped-hole mounting plates
  • EUSERC-approved for factory-installed panelboard applications
  • Manufactured in the USA to ABB’s high-quality standards
  • Compatible with ABB SEMSK4 mounting screw kit (343L162G7)

Specifications

Material
Steel
Material
Metal (Cup Washer)
Mounting Type
Screw mounting with tapped holes
Mounting Type
Tapped-hole mounting
Poles
1P
Poles
1-pole
Series
E150
Size
1-pole washer
Special Features
Molded Case Circuit Breaker, External Accessories, Breaker Mounting Screw Kits and Accessories. Cup washer (for mounting 1-pole breakers). 2 required per breaker.
Package Dimensions (L x W x H)
0.001 IN x 0.001 IN x 0.001 IN
Package Dimensions (L x W x H)
0.0025 cm x 0.0025 cm x 0.0025 cm
Package Weight (Imperial)
0.001 L
Package Weight (Metric)
0.001 kg
Kits pre-mount to bus structure allowing cabling or bussing to be completed prior to breaker mounting. Accepts either lugs or crimp type connector terminals. Kit includes adapter and hardware for either a three-pole, line-side, or a three-pole load-side connection. (Lugs not included.)

TPLUGA08

Kits pre-mount to bus structure allowing cabling or bussing to be completed prior to breaker mounting. Accepts either lugs or crimp type connector terminals. Kit includes adapter and hardware for either a three-pole, line-side, or a three-pole load-side connection. (Lugs not included.)
KIT DRIP COVER MOUNTING HARDWARE 56H

DRCV-O56-S-HRDWRE

KIT DRIP COVER MOUNTING HARDWARE 56H
Industrial Breakers. J-Frame Export Parts. J-Frame Accessories And Lugs. ASM Breaker Mounting Hardware.

343L162G11

Industrial Breakers. J-Frame Export Parts. J-Frame Accessories And Lugs. ASM Breaker Mounting Hardware.
Industrial Breakers. E-Frame Lugs And Accessories. E15, 1P Breaker Mounting. Screw Kit.

343L162G7

Industrial Breakers. E-Frame Lugs And Accessories. E15, 1P Breaker Mounting. Screw Kit.
PowerMark Plus Equipment Ground Kit with 6 10-1/0 Cu/Al Number of Terminals for 400 and 600 Amps.

TNG6

PowerMark Plus Equipment Ground Kit with 6 10-1/0 Cu/Al Number of Terminals for 400 and 600 Amps.
Substructures are available for both standard and Hi-Break Power Break II breakers. Holes are provided for bolting on a shelf or supports. Holes are provided in the primary stabs for bolting to busbars or terminal lugs. Substructure secondary disconnects are ordered and priced separately. OS20 Amps 600 A

SPSDOS20

Substructures are available for both standard and Hi-Break Power Break II breakers. Holes are provided for bolting on a shelf or supports. Holes are provided in the primary stabs for bolting to busbars or terminal lugs. Substructure secondary disconnects are ordered and priced separately. OS20 Amps 600 A
Kits pre-mount to bus structure allowing cabling or bussing to be completed prior to breaker mounting. Accepts either lugs or crimp type connector terminals. Kit includes adapter and hardware for either a three-pole, line-side, or a three-pole load-side connection. (Lugs not included.) GA20 Frame Rating Amps 800

SPLUGA20

Kits pre-mount to bus structure allowing cabling or bussing to be completed prior to breaker mounting. Accepts either lugs or crimp type connector terminals. Kit includes adapter and hardware for either a three-pole, line-side, or a three-pole load-side connection. (Lugs not included.) GA20 Frame Rating Amps 800
Substructures are available for both standard and Hi-Break Power Break II breakers. Holes are provided for bolting on a shelf or supports. Holes are provided in the primary stabs for bolting to busbars or terminal lugs. Substructure secondary disconnects are ordered and priced separately. OS16 Frame Rating Amps 800

SPHDOS16

Substructures are available for both standard and Hi-Break Power Break II breakers. Holes are provided for bolting on a shelf or supports. Holes are provided in the primary stabs for bolting to busbars or terminal lugs. Substructure secondary disconnects are ordered and priced separately. OS16 Frame Rating Amps 800

Frequently Asked Questions

What is this product used for?

This product is a cup washer used for mounting 3-pole circuit breakers.

How many cup washers are needed per breaker?

Four cup washers are required per breaker.

What is the catalog number for this cup washer?

The catalog number for this cup washer is 100-943P3.

What type of circuit breakers does this accessory fit?

This accessory is designed for mounting 3-pole circuit breakers.

What category does this product fall under?

This product falls under the Accessories category.

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.

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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.

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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.

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