Square D 8501CO16V29 General Purpose Relay Dpdt 480 Vac

Product Description

The SQUARE D 8501CO16V29 is an electromechanical general purpose relay rated for 480 VAC at 50/60 Hz with a 10 VA power rating. It features a double-pole double-throw (DPDT) contact form and screw clamp terminal connections, making it straightforward to wire in the field without additional tooling. The relay handles up to 1-1/2 hp motor loads and carries a contact rating of 40 amps at 277 VAC and 5 amps at 600 V. It is used in control panels, HVAC equipment, and industrial machinery where reliable switching of control circuits is required. Licensed electricians and controls technicians are the primary installers.

This relay fits residential and light commercial control panel applications as well as industrial control cabinets. It is suited for use in HVAC control circuits, motor starters, and general-purpose switching applications operating on 480 VAC 50/60 Hz supply. The screw clamp terminals support solid and stranded conductors, reducing installation time and the risk of loose connections in vibration-prone environments. Panel builders and service electricians will find the compact footprint practical for retrofit and new-build installations.

Key Features

• DPDT contact form provides two independent switched circuits in a single relay body
• Screw clamp terminals accept solid and stranded conductors for secure, tool-minimal termination
• Rated 40 amps at 277 VAC and 5 amps at 600 V for broad voltage-range coverage
• 1-1/2 hp motor load rating supports small motor switching applications
• 10 VA coil power rating allows use with low-capacity control transformers
• RoHS compliant; UL Listed (File E78351); CSA certified (File 218139 Class 3211 04); meets IEC 60947-4-1

Compatibility

Designed as an OEM-style replacement for general purpose electromechanical relays in 480 VAC control panel and HVAC equipment applications requiring a DPDT screw clamp relay.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and applicable local codes. De-energize and lock out the control panel before removing or installing the relay. Verify coil voltage matches the control circuit supply before energizing. Do not exceed the published contact current and voltage ratings for the intended load.