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Eaton XT IEC Bimetallic Overload Relay Adapter, C/D Frame
Model: EAT-XTOBXDIN
Eaton XT IEC Bimetallic Overload Relay Adapter, C/D FrameThe Eaton XT IEC Bimetallic Overload Relay Adapter is a panel mount accessory engineered for use with Eaton's XT series bimetallic overload...
Eaton
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$27.97
Eaton XT IEC Bimetallic Overload Relay, Direct Mount
The Eaton XT IEC Bimetallic Overload Relay is engineered to protect three-phase motor circuits from sustained overcurrent conditions in industrial control applications. This relay is available in a range of frame sizes, contact configurations, and trip ranges, and is designed for direct mounting to a compatible Eaton XT contactor. It is UL Listed, making it suitable for use in code-compliant motor control centers, panelboards, and control panels where dependable bimetallic overload protection is required.
Key Features
- Frame Size: Available in multiple frame sizes for direct-mount compatibility with matching Eaton XT contactors.
- Overload Protection: Adjustable overload ranges for precise motor overload protection.
- Contact Configuration: Auxiliary contacts for reliable signaling and control circuit integration.
- Direct Mounting: Mounts directly to a compatible Eaton XT contactor, simplifying installation and reducing panel footprint.
- Bimetallic Trip Mechanism: Bimetallic sensing technology delivers dependable, temperature-compensated overload tripping.
- Fuse Coordination Note: Observe the maximum permissible fuse rating of the contactor when the device is direct mounted.
- Hazardous Location Suitability: Suitable for protection of EEx e-motors per manufacturer documentation.
Certifications & Compliance
- UL Listed
- EC prototype test certificate available upon request
Technical Specifications
- Type: XT IEC Bimetallic Overload Relay
- Mounting: Direct
- Trip Mechanism: Bimetallic, temperature-compensated
- Certifications: UL Listed
- Department: Electrical
Typical Applications
- Motor Control Centers and Control Panels
- Three-Phase Motor Overload Protection
- Industrial Machinery and Process Equipment
- Direct-Mount Contactor Assemblies
- Commercial and Industrial Electrical Installations
Why Eaton?
Eaton's XT IEC Bimetallic Overload Relay combines a compact, direct-mount design with UL Listed construction, giving electrical professionals a dependable path to code-compliant motor overload protection. The bimetallic trip mechanism supports consistent performance in demanding industrial control environments where reliable, code-compliant components are essential.
Variant Specifications
| Frame | Contact Configuration | Motor FLA | SKU |
|---|---|---|---|
| 45 mm Frame | 1NO | Standard | XTOB006BC1 |
| 45 mm Frame | 1NC | Standard | XTOB032CC1 |
| 55 mm Frame | Standard | 40-57A | XTOB057DC1 |
| 55 mm Frame | Standard | 50-65A | XTOB065DC1 |
| D-Frame | Standard | 65-75A | XTOB075DC1 |
| 45 mm Frame | Standard | Standard | XTOB150GC1 |
| D-Frame | Standard | 120-160A | XTOB160LC1 |
Manufacturer Resources
Product Specs
- Listing:
- UL Listed
- Department:
- Electrical
- Product Type:
- Overload Relay
- Certifications:
- UL Listed
- Mounting Method:
- Direct
- Product Group:
- Motor Control & Automation
- Product Subgroup:
- Overload Relays
Eaton XTOB006BC1 – Frequently Asked Questions
1) Does the Eaton XTOB overload relay mount directly to the contactor or does it need a separate base?
It is a direct-mount device. The XTOB bimetallic overload relay plugs onto a matching Eaton XT contactor, so no separate mounting base or panel space is needed. The catch is that the frame size has to match the contactor: the relay is offered in 45 mm frame, 55 mm frame and D-frame versions, and each mates with the corresponding XT contactor frame. Pick the relay frame from the contactor already in the panel, not from the motor amps alone.
2) Which Eaton XTOB part number covers a motor drawing about 60 amps full load?
For roughly 60 A FLA, the XTOB065DC1 is the one to order, a 55 mm frame relay with a 50-65 A adjustable trip range. If the motor sits nearer 55 A, XTOB057DC1 covers 40-57 A on the same 55 mm frame. Set the dial to the motor nameplate FLA, not to the top of the range.
3) Do I get a normally open or normally closed auxiliary contact on the XTOB relay?
Both configurations are sold. XTOB006BC1 is the 1NO version and XTOB032CC1 is the 1NC, both on the 45 mm frame. Use the NC contact in the control circuit to drop the contactor coil on a trip, and the NO contact to drive a trip lamp, alarm or PLC input. If your panel drawing calls for both functions, you will need to account for that when you specify.
4) Does the fuse size upstream matter when the overload relay is mounted on the contactor?
Yes, and it is the detail most often missed. When the XTOB is direct mounted to the contactor, you have to observe the maximum permissible fuse rating of that contactor, because the short-circuit protection ahead of the assembly has to coordinate with the contactor rating rather than just with the motor. Check the contactor's stated maximum fuse before sizing the branch device.
5) What is the largest motor current the XTOB overload relay range covers?
The top of the range is XTOB160LC1, a D-frame relay set for 120-160 A. Below it, XTOB075DC1 (D-frame) covers 65-75 A, and the 55 mm frame units cover 40-57 A and 50-65 A. Both D-frame units require a D-frame XT contactor to mount to.
6) Is a bimetallic overload relay the right choice, or should I use an electronic one?
A bimetallic relay like the XTOB senses heat through bimetal strips and is temperature compensated, which suits standard three-phase motor starters in motor control centers, control panels and process machinery where you want a straightforward adjustable overload with no electronics and no control power of its own. Electronic overload relays are the better call when you need wide adjustment ranges on one unit, ground fault or phase loss monitoring, or communications back to a controller. For a plain across-the-line starter feeding a fixed motor, the bimetallic unit does the job.
7) Can I use the Eaton XTOB overload relay in a UL-compliant motor control center?
The XTOB IEC bimetallic overload relay is UL Listed, so it can be applied in code-compliant motor control centers, panelboards and control panels. An EC prototype test certificate is available on request for projects that need IEC documentation on file.
8) Can the XTOB overload relay protect motors in a hazardous area?
It is suitable for the protection of EEx e (increased safety) motors per Eaton's documentation. That covers the overload protection function for the motor itself; the relay and its contactor still have to sit in a suitably rated enclosure or a non-classified control room, since this is a standard panel-mount IEC device.
9) How many phases does the Eaton XTOB overload relay protect?
It is a three-phase device, with current paths for all three legs running through the relay from the contactor load terminals to the motor leads. It is built to protect three-phase motor circuits against sustained overcurrent, so it is not the part to use on a single-phase load.
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Does the Eaton XTOB006BC1 come with a warranty?
Absolutely. The Eaton XTOB006BC1 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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