Your Cart 0 items

Your cart is empty.

Browse Products →
Call Us
Sale

Worldwide shipping services

T&Cs apply

Global Supply Network

User-Friendly Platform

Expert Technical Support

24/7 Support

Secured Transactions

SSL & Stripe encrypted

ZB12-12
Click to zoom
ZB12-12
Order on Whatsapp Schneider Electric Product Selector tool
Eaton
(No reviews yet)

Eaton ZB12-12 - ZB12 1NO+1NC 9 - 12A Contactor Type DILM7-DILM25 Over Load Relay

Cat No. 278441
Category Over Load Relay
Stock In Stock
Condition Brand New, Sealed Packaging
Product Type Over Load Relay
Please contact us for the exact delivery timeline

In Stock — 15 Qty

$75.97
Quantity Expected Delivery
15 Units 25 Business Days

Reach out to us for project inquiries, Add to cart and click on send inquiry

Currently viewed by 38 users
Secure Payment with
Visa, MasterCard, American Express, Apple Pay, Discover, PayPal, Stripe
Need help on Inquiry? Call Us on +1 (888) 293-7436
Warranty Guarantee
100% Original Products
EEE Buyer Protection
World-Wide Reach

Technical Documents

No Data Available

There is no data to show you right now.

Technical Specification

Eaton 278441 Over Load Relay Technical Specification

Over Load Relay
Bimetal relay Type ZB12
Contactor Type DILM7...DILM25
Current Range 09-12A
Range of Product —
Secondary Volt Ac -
Sub Family -
Type Thermal Overload Relay

Product Details

Eaton ZB12-12 - Test/off buttonReset pushbutton manual/autoPhase-failure sensitivity (according to IEC/EN 60947, VDE 0660 Part 102)Trip-free release

Product Dimensions

Eaton 278441 dimensions and weight

Dimensions (L × W × H)
Length 8.8 cm
Width 4.5 cm
Height 6.7 cm
Weight
Net Weight 0.5 kg

Dimensions are approximate. For precise dimensional drawings, contact us.

Related Products

LR9G630

LR9G630 - Electronic thermal overload relay, TeSys Giga, 160…630 A, class 5E…30E..

LR9G630

Cat No: LR9G630 Back Ordered expedited delivery
$682.52
1SAZ211201R2005

1SAZ211201R2005 - TA25DU-0.16M Thermal Overload Relay | ABB

1SAZ211201R2005

Cat No: 1SAZ211201R2005 In Stock: 20 Units expedited delivery
$50.26
1SAZ211201R2009

1SAZ211201R2009 - TA25DU-0.25M Thermal Overload Relay | ABB

1SAZ211201R2009

Cat No: 1SAZ211201R2009 In Stock: 20 Units expedited delivery
$50.26
1SAZ211201R2013

1SAZ211201R2013 - TA25DU-0.4M Thermal Overload Relay | ABB

1SAZ211201R2013

Cat No: 1SAZ211201R2013 In Stock: 20 Units expedited delivery
$50.26
1SAZ211201R2017

1SAZ211201R2017 - TA25DU-0.63M Thermal Overload Relay | ABB

1SAZ211201R2017

Cat No: 1SAZ211201R2017 In Stock: 20 Units expedited delivery
$50.26
1SAZ211201R2021

1SAZ211201R2021 - TA25DU-1.0M Thermal Overload Relay | ABB

1SAZ211201R2021

Cat No: 1SAZ211201R2021 In Stock: 39 Units expedited delivery
$50.95
1SAZ211201R2023

1SAZ211201R2023 - TA25DU-1.4M Thermal Overload Relay | ABB

1SAZ211201R2023

Cat No: 1SAZ211201R2023 In Stock: 25 Units expedited delivery
$50.95
1SAZ211201R2025

1SAZ211201R2025 - TA25DU-1.8M Thermal Overload Relay | ABB

1SAZ211201R2025

Cat No: 1SAZ211201R2025 In Stock: 24 Units expedited delivery
$50.95

Frequently Bought Together

No Data Available

There is no data to show you right now.

Product Line Card

No Data Available

There is no data to show you right now.

Alternate Products

LRE353

LRE353 - Easy TeSys differential thermal overload relay 23...32 A - class 10A - Schneider..

LRE353

Cat No: LRE353 In Stock: 154 Units expedited delivery
$76.09
LRE357

LRE357 - Easy TeSys differential thermal overload relay 37...50 A - class 10A - Schneider..

LRE357

Cat No: LRE357 In Stock: 29 Units expedited delivery
$76.09

IT-63 65AF 45-65A 1NO+1NC Nominal Current-54A Over Load Relay

IT63/3K 54

Cat No: IT63/3K 54 Back Ordered expedited delivery
$75.28
LRE322

LRE322 - Easy TeSys differential thermal overload relay 17...25 A - class 10A - Schneider..

LRE322

Cat No: LRE322 In Stock: 126 Units expedited delivery
$73.85
A9C30812

A9C30812 - impulse relay iTL - 2P - 2 NO - 16A - coil 110 VDC - 230...240 VAC 50/60Hz - Sc..

A9C30812

Cat No: A9C30812 In Stock: 57 Units expedited delivery
$73.15

IT-63 65AF 34-50A 1NO+1NC Nominal Current-42A Over Load Relay

IT63/3K 42

Cat No: IT63/3K 42 Back Ordered expedited delivery
$72.14
1SAX101910R1001

1SAX101910R1001 - ABB DB19EF Single Mounting Kit, For Use With EF19 Electronic Overload…

1SAX101910R1001

Cat No: 1SAX101910R1001 In Stock: 1 Units expedited delivery
$71.90
LRE355

LRE355 - Easy TeSys differential thermal overload relay 30...40 A - class 10A - Schneider..

LRE355

Cat No: LRE355 In Stock: 232 Units expedited delivery
$71.61

Product Overview

Eaton ZB12-12 - Test/off buttonReset pushbutton manual/autoPhase-failure sensitivity (according to IEC/EN 60947, VDE 0660 Part 102)Trip-free release

Frequently Asked Questions for 278441

Yes. RAS Electrihub Private Limited operates as an ISO-certified organization, ensuring quality sourcing, authentic products, and standardized procurement and delivery processes.
The price of Eaton ZB12-12 Over Load Relay depends on specifications, availability, and market conditions. You can check the latest GST-inclusive price on Electrihub India, which provides
genuine products, transparent billing, and PAN India delivery.
Yes. RAS Electrihub Private Limited provides PAN India delivery with reliable logistics, safe packaging, and doorstep delivery across all states and union territories.
Yes. RAS Electrihub Private Limited issues GST-compliant invoices and also supports PO-based invoicing for businesses, contractors, and organizations across India.
The Eaton 278441 is a commercial-grade Over Load Relay designed to protect three-phase AC electric motors from continuous overcurrent conditions, thermal degradation, and mechanical stalling. It operates as a Eaton Moeller ZB series high-reliability thermal overload relay, offering precision Class 10 trip characteristics, phase-failure sensitivity, and an isolated auxiliary contact block ($95\text{–}96\text{ NC}$ and $97\text{–}98\text{ NO}$) for direct contactor mounting. The device is engineered to comply with strict international benchmarks such as IEC/EN 60947-4-1, UL, and CSA standards, making it fully ready for integration into global power grids operating at both 50Hz and 60Hz. Procurement managers can find this authorized switchgear with global shipment support on Electrihub.com.
The Eaton 278441 Over Load Relay continuously monitors phase currents via precisely calibrated internal elements (bimetallic strips or advanced electronic current transformers). In the event of a phase failure or single-phasing condition, the relay triggers an accelerated differential trip response to prevent rapid motor winding insulation breakdown. This action mechanically shifts the auxiliary contact block, opening the contact to break the control circuit coil and closing the contact to signal a system fault, ensuring complete protection across complex global automation networks.
The Eaton 278441 is physically and electrically engineered for direct plug-in mounting to matching Eaton power contactor frameworks, optimizing panel space and eliminating unnecessary control wiring. It is certified for both Type 1 and Type 2 coordination schemas under short-circuit conditions when combined with appropriate molded case circuit breakers (MCCBs) or high-capacity fuses. For independent installation profiles, standalone DIN rail or panel baseplates are supported, providing global panel builders on Electrihub with maximum engineering flexibility.
The Eaton 278441 features a front-mounted current adjustment dial that allows commissioning engineers to set the precise trip threshold matching the motor's nameplate Full Load Current (FLC). The device features a user-configurable selection switch for Manual or Automatic reset modes; Manual mode requires an intentional field reset after diagnosing the overload fault, while Automatic mode allows the bimetallic components to self-cool and automatically restore the control path. Additionally, an integrated mechanical trip indicator enables swift diagnostic troubleshooting to minimize operational downtime.
Sourcing the Eaton 278441 Over Load Relay via Electrihub.com provides international industrial buyers with guaranteed product authenticity, manufacturer warranty support, and full technical datasheet compliance. Electrihub.com is optimized for global enterprise supply chains, providing competitive wholesale commercial pricing, transparent export-ready compliance documentation, bulk order capability for major infrastructure projects, and specialized engineering support to ensure seamless component coordination across all international projects.
The Eaton 278441 is a high-grade Over Load Relay engineered primarily to protect three-phase AC electric motors from damaging thermal overloads, prolonged stalled rotors, and phase imbalances. As detailed in its technical specifications, this relay operates as a Eaton Moeller ZB series thermal overload relay (offering reliable protection for DILM contactors, Class 10 trip characteristics, phase-failure sensitivity, and direct-to-contactor plug-in mounting). It is an essential component for motor control centers (MCCs) and automation panels across India, and can be procured directly with full manufacturer warranty on Electrihub.
The Eaton 278441 Over Load Relay utilizes internal bimetallic strips calibrated to bend under continuous overcurrent, heating up until they mechanically actuate the auxiliary trip contacts (95-96 NC and 97-98 NO). Additionally, it features differential tripping/travel mechanisms that provide accelerated tripping in the event of a single-phasing or phase failure condition. This prevents severe motor winding burnouts, making the 278441 exceptionally reliable for unpredictable power grids in Indian industrial zones.
The Eaton 278441 is structurally and electrically optimized for direct plug-in mounting to matching Eaton power contactors (such as the standard industrial starter ranges), creating a compact and rigid direct-on-line (DOL) or Star-Delta starter assembly. For standalone applications or independent panel mounting, it can be attached to an independent DIN rail or base plate adapter using standard screw terminals, ensuring flexible integration inside electrical panels sourced via Electrihub.in.
The Eaton 278441 features a front-accessible, adjustable dial that allows panel engineers to precisely set the current trip threshold matching the motor's full load current (FLC). It also includes a versatile user-selectable reset button supporting both 'Manual' reset (requiring field maintenance intervention after a fault verification) and 'Automatic' reset modes. A mechanical trip indication indicator is integrated to speed up diagnostics during maintenance cycles.
Electrihub is India’s leading B2B e-commerce platform for authorized industrial switchgear and automation components. When purchasing the Eaton 278441 Over Load Relay through Electrihub.in, buyers receive 100% genuine products, full compliance with GST tax invoicing, access to bulk commercial discount schemes, rapid logistics to major industrial hubs, and dedicated technical customer support for complex switchgear coordination challenges.

Reviews & Ratings

4.9
9 reviews
5
8
4
1
3
0
2
0
1
0
Emily Walker Jun 8, 2026

Top-tier Over Load Relay. Electrihub is our primary supplier for industrial automation parts because they always deliver authentic products with full documentation.

Pierre Thompson Jun 8, 2026

Installed this 278441 overload relay last week. High-quality switchgear from Eaton. Thank you Electrihub for the seamless transaction and fast dispatch.

Mila Hill Jun 8, 2026

Bought this Eaton Over Load Relay (278441) from Electrihub. The item arrived quickly and was well-packaged. Fits perfectly into our control cabinet and works as expected.

John Jackson Jun 8, 2026

We needed a genuine Eaton 278441 for an emergency replacement. Electrihub had it in stock at a very reasonable price. Great purchasing experience on their site.

Ishaan Gupta Jun 8, 2026

Very happy with the purchase of this Over Load Relay from RAS Electrihub. It's an original Eaton part, well within the budget and came with standard warranty support.

Piyush Kulkarni Jun 8, 2026

Standard high quality from Eaton. The 278441 overload protection relay fits perfectly and works without issues. Great service from RAS Electrihub.

Kunal Mishra Jun 8, 2026

We routinely source our panel components from RAS Electrihub. This Eaton Over Load Relay (278441) is highly reliable and authentic. Highly recommend their .in site.

Ajay Dwivedi Jun 8, 2026

Good technical guidance from RAS Electrihub regarding this 278441. The Over Load Relay operates perfectly. Box had minor dust but inside item was mint.

Ashok Patil Jun 8, 2026

Got the Eaton 278441 delivered on time for our project breakdown. RAS Electrihub saved us a lot of downtime. Quality is top-notch.

Related Categories

Contactors and Contactor Relays Auxiliary Contactors Capacitor duty contactor Earth Leakage Relay Motor Management Accessories Motor Protection Relay Motor Starter MPCB MPCB Accessories Over Load Relay Overload Relays Accessories Power Contactor Power Contactor Accessories Protective Relays Protective Relays Accessories

Tags

# Eaton # ZB12-12 # Over # Load # Relay # ZB12 # 1NO+1NC # 9 # - # 12A # Contactor # Type # DILM7-DILM25 # Over # Load # Relay # electrihub # electrical-supplies # electrical-supply-store
Subscribe to our Newsletter