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Eaton NZM Series Molded Case Circuit Breaker Undervoltage Release
The Eaton NZM Series Molded Case Circuit Breaker Undervoltage Release is a Series 10250T accessory built for industrial control and machine-safety circuits requiring reliable trip actuation. It features a die-cast enclosure rated NEMA 4 for protection in demanding environments, a 30.5 mm heavy-duty type construction, and a break-glass actuator with a clear actuator color that closes contact when triggered. Backed by UL Listed and CE Marked compliance, this Eaton accessory is engineered for dependable performance in commercial and industrial electrical systems.
Key Features
- Durable Construction: Die cast enclosure material for strength and durability in demanding installation environments.
- NEMA 4 Rating: Enclosure rated NEMA 4, suitable for use where protection against dust, splashing water, and hose-directed water is required.
- Surface Mounting: Designed for surface mounting method for straightforward installation on panels and enclosures.
- EMERGENCY OFF Legend: Clearly marked EMERGENCY OFF legend for fast operator identification during emergency conditions.
- Compact Enclosure Dimensions: Product width of 6 in, length/depth of 9.8 in, and height of 5.1 in for predictable panel space planning.
- 30.5 mm Heavy-Duty Type: Heavy-duty 30.5 mm type construction built for repeated actuation in industrial service.
- Break Glass Actuator: Break-glass actuator with clear actuator color; breaking the glass closes contact for immediate response.
- 1 NC Contact Configuration: Single-element design with 1 NC (logic level) contact configuration for straightforward integration into control circuits.
Certifications & Compliance
- UL Listed
- CE Marked
Technical Specifications
- Product Type: Circuit Breaker
- Number of elements: 1
- Warranty: 1 year
- Department: Electrical
- Series: 10250T
- Enclosure material: Die cast
- Rating: NEMA 4
- Mounting method: Surface
- Product Width: 6 in
- Product Length/Depth: 9.8 in
- Product Height: 5.1 in
- Contact configuration: 1 NC (logic level)
- Actuator: Break glass
- Actuator color: Clear
Typical Applications
- Commercial and Industrial Electrical Installations
- Molded Case Circuit Breaker Accessory Integration
- Machine Safety and Emergency Stop Circuits
- Industrial Control Panel Wiring
- Panelboard and Equipment Control Systems
Why Eaton?
Eaton engineers this undervoltage release accessory with a die-cast enclosure and NEMA 4 rating to hold up in demanding industrial environments, while UL Listed and CE Marked compliance supports code-compliant performance for professional electrical work. The break-glass actuator and 1 NC logic-level contact configuration deliver a straightforward, dependable response for control and safety circuits built around Eaton NZM Series molded case circuit breakers.
Variant Specifications
| Voltage | Model | SKU |
|---|---|---|
| 10250TN15/10250T3614 | 10250T3614 | 10250T3614 |
| 10250TGR | 10250TGR | 10250TGR |
| 10250TN15/10250T3614 | 10250TN15 | 10250TN15 |
Manufacturer Resources
Spec Sheet
Product Specs
- Department:
- Electrical
- Series:
- 10250T
- Compliances:
- CE Marked
- Product Type:
- Circuit Breaker
- Mounting Method:
- Surface
- Warranty:
- 1 year
- Standards:
- CE Marked
- Enclosure material:
- Die cast
- Product Group:
- Circuit Protection
- Product Subgroup:
- Circuit Breakers
Eaton 10250TN15 – Frequently Asked Questions
1) Is the Eaton 10250T break-glass station suitable for a washdown or wet industrial area?
The enclosure carries a NEMA 4 rating, so it is built for locations where dust, splashing water, and hose-directed water are a factor. The housing itself is die cast rather than plastic, which is why it holds that rating in plant and machine-room service. For indoor dry control panels it is more protection than you need, but there is no penalty for using it there.
2) How does the Eaton 10250T emergency off station wire into a control circuit?
It provides a single 1 NC (logic level) contact, with one element. Breaking the glass closes contact, so the station is wired into the control or trip circuit that drops the NZM molded case breaker's undervoltage release. Logic level means the contact is intended for low-energy control signalling, not for switching motor or load current directly.
3) Does the Eaton 10250T emergency off station meet UL and European requirements?
It is UL Listed and CE Marked. For a facility spec that calls for both North American listing and CE conformity on machine-safety components, this station meets that on its face.
4) Is this Eaton 10250T unit a circuit breaker itself, or an accessory?
It is an accessory, not a breaker. The undervoltage release station works with Eaton NZM Series molded case circuit breakers, providing the emergency-off actuation that drops the breaker. You still need the NZM breaker and its undervoltage release coil in the panel for the station to do anything.
5) Do I need to reset or replace anything after someone hits the Eaton break-glass emergency off station?
It is a break-glass actuator with a clear actuator element, so it operates by destroying the glass. Unlike a twist- or key-reset mushroom pushbutton, restoring service means replacing the broken glass element, not resetting a button. Plan on stocking spare glass where these are installed in high-traffic areas.
6) How much panel space does the Eaton 10250T station need?
The enclosure measures 6 in wide, 9.8 in in length/depth, and 5.1 in high, and it is surface mounted, so it bolts to the face of a panel or enclosure rather than dropping into a flush cutout. Allow clearance in front for the actuator and for glass replacement access.
7) Is the 30.5 mm heavy-duty size on the Eaton 10250T the standard industrial pushbutton size?
Yes. The station uses 30.5 mm heavy-duty type construction, which is the common heavy-duty industrial control station size, so it lines up with the rest of a 30.5 mm operator layout on a machine panel. That matters if you are standardizing hole sizes across a plant.
8) What is the difference between the Eaton 10250TGR, 10250TN15 and 10250T3614?
Those are the three orderable models in the 10250T family here. Order by the exact model number that matches your drawing or the unit being replaced, since the model code is what defines the specific station configuration.
9) Is the EMERGENCY OFF legend already marked on the Eaton station?
Yes, the station ships with an EMERGENCY OFF legend marked on it, so no separate legend plate or field labeling is required for operator identification.
How fast can I get the Eaton 10250TN15 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 10250TN15 come with a warranty?
Absolutely. The Eaton 10250TN15 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 10250TN15?
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