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SQUARE D NEMA Control Relay: Surface Relay Mounting, 24V AC Coil Volt, 4NO - Surface-Mounted Relays
SQUARE DSurface-Mounted Relays

SQUARE D NEMA Control Relay: Surface Relay Mounting, 24V AC Coil Volt, 4NO

SQUARE D Surface-Mounted Relays.

SKU 3G-OTH-35888

Brand
SQUARE D
Item
NEMA Control Relay: Surface Relay Mounting, 24V AC Coil Volt, 4NO
Category
Surface-Mounted Relays
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Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

SQUARE D
Manufacturer Part Number
8501XO40V01

Technical Documents

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SQUARE D Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

SQUARE D Surface-Mounted Relays.

Frequently Asked Questions

What is the SQUARE D 8501XO40V01 NEMA control relay used for?

The SQUARE D 8501XO40V01 is a NEMA control relay used for switching electrical loads in industrial control panels, motor control centers, and automation systems. Its 4 normally open contacts and 10 A rating make it suitable for pilot duty, signaling, and interlocking applications in manufacturing and process industries.

What are the specifications of the SQUARE D 8501XO40V01 relay?

The SQUARE D 8501XO40V01 is a NEMA surface-mounted control relay with a 24V AC coil voltage, 4 normally open (4NO) contacts, and a 10 A contact rating. It is designed for surface relay mounting and is part of the SQUARE D 8501 series, offering reliable switching in industrial environments.

Where to buy SQUARE D 8501XO40V01 worldwide?

You can source the SQUARE D 8501XO40V01 relay worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we supply genuine SQUARE D components for industrial control applications.

How to install a SQUARE D NEMA control relay like the 8501XO40V01?

Mount the SQUARE D 8501XO40V01 relay on a flat surface using the provided slots. Connect the 24V AC coil to the designated terminals and wire the 4NO contacts per your control circuit. Ensure the relay is de-energized during installation. Follow SQUARE D guidelines for torque and wire gauge to maintain reliable operation.

Used in

Common applications for SQUARE D
Commercial building electrical panels — Square D QO series plug-in circuit breakers for branch circuit protection
Industrial motor control centers — Square D QOB series bolt-on breakers in NQOD panelboards
Heating equipment installations — Square D QOU series unit-mount breakers for overcurrent protection
Outdoor electrical distribution — Square D L-Frame enclosures housing LAL/LHL breakers for 400 A service
Indoor facility power distribution — Square D Q-Frame enclosures with QBL/QDL breakers for 225 A circuits
Retrofit and replacement in existing Square D load centers — QO series breakers for 120/240V AC systems

SQUARE D Products

3G Electric supplies SQUARE D surface-mounted relays. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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