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ZB32-10
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ZB32-10
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Eaton
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Eaton ZB32-10 - ZB32 1NO+1NC 6 - 10A Contactor Type DILM7-DILM37 Over Load Relay

Cat No. 278451
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 — 10 Qty

$83.09
Quantity Expected Delivery
10 Units 25 Business Days

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Technical Specification

Eaton 278451 Over Load Relay Technical Specification

Over Load Relay
Bimetal relay Type ZB32
Contactor Type DILM7...DILM37
Current Range 06-10A
Range of Product —
Secondary Volt Ac -
Sub Family -
Type Thermal Overload Relay

Product Details

Eaton ZB32-10 - Reset pushbutton manual/autoPhase-failure sensitivity (according to IEC/EN 60947, VDE 0660 Part 102)Trip-free releaseTest/off button

Product Dimensions

Eaton 278451 dimensions and weight

Dimensions (L × W × H)
Length 9.6 cm
Width 4.5 cm
Height 6.7 cm
Weight
Net Weight 0.5 kg

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

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Product Overview

Eaton ZB32-10 - Reset pushbutton manual/autoPhase-failure sensitivity (according to IEC/EN 60947, VDE 0660 Part 102)Trip-free releaseTest/off button

Frequently Asked Questions for 278451

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 ZB32-10 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 278451 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 278451 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 278451 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 278451 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 278451 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 278451 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 278451 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 278451 exceptionally reliable for unpredictable power grids in Indian industrial zones.
The Eaton 278451 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 278451 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 278451 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

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Camila Rodriguez Jun 8, 2026

Exactly what our facility needed. The 278451 is reliable, robust, and priced fairly on the Electrihub website. Will definitely reorder from them.

Gianna Lopez Jun 8, 2026

Sourced this Over Load Relay through Electrihub. Very content with the Eaton build quality. Delivery was smooth, though communication on dispatch could be a bit quicker.

Hugo Taylor Jun 8, 2026

Sourced several units of this Over Load Relay from Electrihub. Their stock availability is impressive and the pricing is the best online for original Eaton items.

Arthur Wright Jun 8, 2026

The Eaton 278451 Over Load Relay works flawlessly. Electrihub made procurement straightforward and provided regular tracking details. Highly recommended supplier.

Mayank Patil Jun 8, 2026

Got the Eaton 278451 delivered on time for our project breakdown. RAS Electrihub saved us a lot of downtime. Quality is top-notch.

Siddharth Iyer 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.

Alok Ghosh Jun 8, 2026

Standard high quality from Eaton. The 278451 overload protection relay fits perfectly and works without issues. Great service from RAS Electrihub.

Utkarsh Khanna Jun 8, 2026

Good technical guidance from RAS Electrihub regarding this 278451. The Over Load Relay operates perfectly. Box had minor dust but inside item was mint.

Arjun Reddy Jun 8, 2026

We routinely source our panel components from RAS Electrihub. This Eaton Over Load Relay (278451) is highly reliable and authentic. Highly recommend their .in site.

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 # ZB32-10 # Over # Load # Relay # ZB32 # 1NO+1NC # 6 # - # 10A # Contactor # Type # DILM7-DILM37 # Over # Load # Relay # electrihub # electrical-supplies # electrical-supply-store
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