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Manufacturer Resources
Spec Sheet
Product Specs
- Coil Material:
- Copper windings
- Notes:
- Epoxy encapsulated, Laminations of high quality silicon steel to minimize core losses and optimize performance, 50/60Hz operation, 130°C insulation system standard, Molded-in terminals for maximum durability
- Primary Voltage:
- 380/400/415V
- Secondary Voltage:
- 110/120V
- Temperature Rating:
- 55°C
- Volt Ampere Rating:
- 350 VA
- Department:
- Electrical
- Product Group:
- Electrical Components
- Product Subgroup:
- Transformers
- Product Type:
- Industrial Control Transformer
- Product Length:
- 5.236 IN
- Product Details:
- Industrial Control Transformer
- Product Design:
- MTE
- Product Height:
- 3.819 IN
- Product Weight:
- 13 LB
- Product Width:
- 4.488 IN
B-LINE C0350E4D – Frequently Asked Questions
1) Will the Eaton Type MTE C0350E4D control transformer work on a 400V three-phase panel feeding a 120V control circuit?
Yes, on the line-to-line voltage. The C0350E4D is wound for a 380/400/415V primary and a 110/120V secondary, so it takes a single phase across two legs of a 400V system and gives you a standard 110 or 120V control circuit. It is rated 350 VA, so size your contactor coils, relays and pilot devices to stay inside that on inrush as well as sealed load.
2) What exact part number should I order to match an existing Eaton MTE 350 VA 400V to 120V control transformer?
The manufacturer part number is C0350E4D, an Eaton Type MTE industrial control transformer rated 350 VA with a 380/400/415V primary and 110/120V secondary. If the unit you are replacing carries that same number on its nameplate, this is a direct like-for-like.
3) Does the C0350E4D industrial control transformer have voltage taps?
No taps. Tap size is listed as none, so the primary connects at the 380/400/415V winding as supplied and there is no field adjustment for a high or low incoming line. If your supply sits outside that band and you need to trim it, you want a tapped control transformer instead.
4) How much space do I need in the enclosure for the C0350E4D transformer, and how heavy is it?
Plan for a body measuring 5.236 x 4.488 x 3.819 inches (length, width, height) plus wire bending room at the terminals. It weighs 13 lb, so on a back panel it wants to be mounted low and on the panel itself rather than on a door or a light subpanel.
5) Is this control transformer suitable for a dirty, humid or vibrating machine environment?
That is what the epoxy encapsulated construction is for. The winding assembly is potted in epoxy and the terminals are molded in rather than riveted on, which is the usual choice for machine tool panels, wash-down adjacent areas and equipment that shakes. Core laminations are high quality silicon steel to hold down core losses.
6) Can I run the C0350E4D on 50Hz for export machinery?
Yes. The MTE unit is specified for 50/60Hz operation, so the same part serves a 50Hz European panel and a 60Hz domestic one. Pair that with the 380/400/415V primary and it suits equipment built for IEC-region supply voltages.
7) What is the insulation class and temperature rise on this Eaton MTE transformer?
It uses a 130 degree C insulation system as standard with a 55 degree C temperature rating. That combination is what lets it sit in a closed control cabinet, but keep normal clearance around it so the enclosure ambient is not driving it past its rating.
8) Are the windings copper or aluminum on the C0350E4D?
Copper. Both windings are copper, which is what most machine builders and MRO specs call for on control transformers because of the terminal connection reliability and the conductivity per turn compared with aluminum.
How fast can I get the B-LINE C0350E4D delivered?
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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 B-LINE C0350E4D come with a warranty?
Absolutely. The B-LINE C0350E4D 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 B-LINE C0350E4D?
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