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Eaton Mechanical Interlock Contactor Accessory
The Eaton Mechanical Interlock is a renewal parts/accessory designed to mechanically interlock two horizontally mounted contactors with an AC or DC operated magnet system, ensuring only one contactor can close at a time. Part of the Eaton XTCEXML Series, it is a compact, low-profile accessory that carries IEC 60947 certification, making it a reliable choice for motor control and protection applications where safe, code-compliant contactor interlocking is required.
Key Features
- Compact Design: Low-profile form factor for a clean mechanical interlock fit within control panels.
- Series Compatibility: Engineered for use with Eaton XTCEXML Series contactors.
- Mechanical Interlock Function: Designed for two horizontally mounted contactors with an AC or DC operated magnet system, preventing simultaneous closure.
- Rated Operational Life: Delivers the operational lifespan Eaton specifies for its interlock configurations.
- Renewal Parts/Accessory Type: Built as a genuine Eaton renewal part for maintaining and upgrading existing contactor installations.
- Certified Design: Manufactured to meet IEC 60947 low-voltage switchgear and controlgear standards.
Certifications & Compliance
- IEC 60947 Certified
Technical Specifications
- Type: Renewal Parts/Accessories
- Series: XTCEXML
- Warranty: Not Applicable
- Certifications: IEC 60947
- Department: Electrical
Typical Applications
- Industrial Motor Control Panels
- Motor Control Centers
- Reversing Starter Contactor Interlocking
- Dual-Contactor Safety Interlock Systems
- Renewal and Retrofit of Existing Contactor Installations
- Commercial and Industrial Electrical Maintenance
Why Eaton?
Eaton engineers its contactor accessories, including this Mechanical Interlock, to IEC 60947 standards for dependable performance in demanding motor control applications. Built as a genuine renewal part for the XTCEXML Series, it helps electrical professionals maintain safe, code-compliant contactor interlocking with the rated operational lifespan Eaton specifies. Choosing Eaton means specifying components engineered for consistent, long-term reliability in industrial and commercial control panels.
Variant Specifications
| Frame | Model | SKU |
|---|---|---|
| B-C Frame | XTCEXMLB | XTCEXMLB |
| B-C Frame | XTCEXMLC | XTCEXMLC |
| D Frame | XTCEXMLD | XTCEXMLD |
Manufacturer Resources
Product Specs
- Department:
- Electrical
- Product Length/Depth:
- 3 in
- Product Type:
- Mechanical Interlock
- Certifications:
- IEC 60947
- Product Width:
- 3 in
- Warranty:
- Not Applicable
- Standards:
- IEC 60947
- Product Height:
- .25 in
- Product Group:
- Motor Control & Automation
- Product Subgroup:
- Motor Starters & Contactors
Eaton XTCEXMLB – Frequently Asked Questions
1) Which Eaton mechanical interlock do I need for XTCE040D through XTCE065D contactors?
Use the XTCEXMLD. The Eaton XTCEXML mechanical interlock is frame-specific: XTCEXMLB covers XTCE007B through XTCF020B contactors, XTCEXMLC covers XTCE018C through XTCE032C, and XTCEXMLD covers XTCE040D through XTCE065D. Match the interlock to the frame letter stamped on the contactors you are pairing, not just to the amp rating.
2) Can I use one Eaton XTCEXML interlock between two different size contactors?
No. Each XTCEXML interlock is built for a single contactor frame range, so both contactors must fall inside the same range, B-C frame for the XTCEXMLB and XTCEXMLC, D frame for the XTCEXMLD. Pairing, for example, an XTCE018C with an XTCE040D will not interlock with any single part in the series.
3) Do the contactors have to be mounted side by side for the Eaton mechanical interlock to work?
Yes, horizontally, side by side. The XTCEXML interlock is made to tie two horizontally mounted contactors together so only one can close at a time. Stacked or vertically arranged contactors won't accept it, so leave the panel layout with the two contactors adjacent on the same DIN rail or backplate line.
4) Does this Eaton interlock work with DC coil contactors or only AC?
Both. The XTCEXML interlock is specified for two horizontally mounted contactors with an AC or DC operated magnet system, so the coil voltage type on your contactors does not change the interlock selection. Frame size is what decides which part number you order.
5) Is a mechanical interlock enough for a reversing starter, or do I still need electrical interlocking?
The XTCEXML is a purely mechanical device, it physically blocks the second contactor from closing while the first is closed. That is the hard safety layer on a reversing starter or dual-source transfer arrangement. Auxiliary contact electrical interlocking is a separate accessory and is commonly used alongside it; the mechanical part does not provide contacts.
6) Is this a genuine Eaton part for repairing an existing motor control center?
Yes, it is an Eaton renewal part for the XTCE contactor line, so it is the correct item for maintaining or retrofitting existing installations in motor control centers and industrial control panels rather than a third-party equivalent.
How fast can I get the Eaton XTCEXMLB delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
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U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Eaton XTCEXMLB come with a warranty?
Absolutely. The Eaton XTCEXMLB is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Eaton XTCEXMLB?
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