How does shipping work for orders on MRO Exchange?

Most orders ship within 1–2 business days via UPS. Larger equipment ships via freight carrier, and customers can use the shipping estimator on the product page for a location-specific quote. Local pickup is also available at the Fairfield, IL facility, typically ready within 4 hours.

What payment methods does MRO Exchange accept?

MRO Exchange accepts all major credit cards, PayPal, and Shop Pay. Purchase order and wire transfer payment is also available, with payment due prior to shipment. Custom terms are available for established accounts.

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Square D 5NR-401 Current Transformer 600V Factory Sealed

$125.00 USD

Sale Sold out

✓ 30-day returns on every item — return policy

ConditionFactory Sealed MPN5NR-401 Stock #0526-02275

30-day returns on every item. Photos reflect the actual item’s current condition — see our return policy and condition guide.

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⚡ Same-day shipping available — order by 11 am CT ($100 add-on at checkout)

✓ Free domestic UPS Ground shipping — applied automatically at checkout.

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The Square D 5NR-401 is a general purpose solid core current transformer manufactured by Schneider Electric. It carries a 400:5 current ratio with a 600 volt insulation class and a 10 kV BIL rating. The window opening measures 1 9/16 inch inside diameter, allowing primary conductor pass through for ratio metering and protection applications. Frequency range covers 50 to 400 Hz, and the unit is rated 12.5 VA, single phase, NEMA 1. Secondary leads are 16 AWG, 24 inch length. The device is UL and cUL recognized. Window type construction places the current carrying conductor through the toroidal core, with the secondary winding terminated to flying leads for connection to instrumentation, relays, or metering equipment. Typical applications include switchgear assemblies, motor control centers, panelboards, metering cabinets, and current sensing circuits used with overcurrent relays or revenue meters. The 5NR series is commonly applied where standard accuracy ratio metering is required at moderate primary current levels. Item comes in original Square D packaging as shown. Part number 5NR-401, UPC 785901099307. Assembled in Mexico.

Stock # 0526-02275

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Frequently Asked Questions

Shipping & Handling

Most orders ship within 1–2 business days via UPS, but expedited same-day handling is available as an add-on to orders in cart. Larger equipment ships via freight carrier. Use the shipping estimator above for a location-specific quote. Local pickup is also available at our Fairfield, IL facility, typically ready within 4 hours.

Returns & Condition

All items are sold as-described based on the photos and condition listed. If an item arrives differing from its description, it may be eligible for return or refund. See our full condition guide for details on our grading terms.

Payment Options

We accept all major credit cards, PayPal, and Shop Pay. Purchase order and wire transfer payment is also available by selecting "Purchase Order / Wire Transfer" at checkout. Payment is due prior to shipment. Contact us for custom terms on established accounts. Tax exemptions are honored if proper documentation is provided.