Square D ARP040 replacement Rating Plug – BRAH BARP040
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Square D ARP040 Replacement Rating Plug

BRAH BARP040 replaces the Square D ARP040 rating plug: 40%, for MicroLogic trip units. Part of the ARP Series family. Covered by a BRAH Electric 2-year warranty; in-stock orders placed before 3:00 PM Pacific ship the same business day.

Factory New
Drop-in fit
Matches OEM Specs
In Stock
$379.00USD
1
(855) 355-2724Average waiting time: 1 min

Product Specifications

ARP040, 40% max amp of circuit breaker, to derate circuit breaker output amperage down to 40% of the CT sensor ratings amperage, type ARP rating plug, suitable for all Square D molded case frame types equipped with MicroLogic Series 3B solid state electronic trip units, direct substitute rating plug for Square D OEM ARP040.

BRAH part: BARP040

BARP040 specifications
BRAH Part NumberBARP040
Replacement for OEM Part #ARP040
Replacement for OEM MfrSquare D
FamilyARP Series
TypeARP
Amperage40%
Frame Type SuitableAll Square D Breakers with MicroLogic Series 3B Trip Units
Trip Unit SuitableMicroLogic

Frequently Asked Questions

Is this a direct drop-in replacement?
Yes. All BRAH Electric products are engineered as 1:1 direct replacements for the corresponding OEM part. No modifications, adapters, or special wiring are required for installation.*
*Exceptions may apply.
What warranty is included?
Every BRAH product ships with a 2-year warranty from the date of invoice. We guarantee proper function without defects according to provided specifications. Contact Kits carry a 6-month warranty.
Do you offer volume or bulk pricing?
Yes. If you are purchasing 10 or more units, or plan to buy regularly, you may qualify for our volume or reseller pricing program. Click on the product page or call us at (855) 355-2724.
What is your return policy?
Returns must be approved by a BRAH Electric representative with an RMA number. Returns within 30 days of shipment are subject to a restocking charge of 25–50%. Items are non-refundable after 30 days. Contact our support team to request an RMA. If you are unsure about product fit, call us at (855) 355-2724. See our Policies page for full details.
How fast will my order ship?
In-stock items ordered before 3:00 PM (Pacific) ship the same business day. You can see the live shipping countdown timer on the product page. Most domestic orders arrive within 2–5 business days.
Is this compatible with my Square D breaker?
Yes. This BRAH replacement is engineered for direct compatibility with Square D breakers and follows the same mounting and electrical specifications as the original part.
What OEM part numbers does BARP040 replace?
BARP040 is a direct replacement for ARP040. No modifications or adapters are required—it installs like the original.
Is BARP040 a drop-in replacement for ARP040?
Yes. BARP040 is a 1:1 drop-in replacement for ARP040 in Square D applications. Same mounting and wiring.

Why purchase from BRAH Electric?

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Factory New
Drop-in fit
Matches OEM Specs
Ships Worldwide
2-Year Warranty included

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