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Square D GV3P73 Motor Protection Circuit Breaker
Square D
GV3P73
Motor Protection Circuit Breaker
Brand
Square D
SKU
GV3P73
Quantity
Core Specs
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Square D GV3P73 - 73A 3 Pole Motor Protection Circuit Breaker
New
Quantity
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Description
Part of the TeSys GV3 series, this 73A motor protection circuit breaker delivers reliable phase failure sensitivity and overload defense. The unit integrates seamlessly with TeSys Deca contactors and mounts easily onto standard DIN rail systems. Featuring an adjustable thermal trip range of 62 to 73 amps, it replaces the legacy GV3ME80 model. Patented EverLink power connections ensure permanent bare cable pressure, mitigating the effects of thermal cycling in demanding industrial environments.Specifications
| Brand | Square D |
|---|---|
| Part Number | GV3P73 |
| Series | GV3 |
| Amperage | 73A |
| Poles | 3 |
| Mounting Style | DIN Rail |
| Voltage | 240VAC, 480Y/277VAC, 600Y/347VAC, 208VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 50kA @ 480Y/277VAC, 10kA @ 600Y/347VAC |
| Amperage Range | 62-73A |
|---|
| Terminal Type | Screw/Clamp Terminal |
|---|---|
| For Use With | TeSys Deca Contactors, TeSys GV3 Accessories |
| Wire Gauge | 14-2 AWG |
| Max Wire | 2 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Adjustable Thermal, Fixed Magnetic |
| Available Options | Auxiliary Switch, Shunt Trip, Undervoltage Release, Busbar System, Padlock Attachment, Mounting Feet |
|---|---|
| Accessories | EverLink Lugs Included |
| Standards | CSA C22.2 No 60947-4-1, EN/IEC 60947-2, EN/IEC 60947-4-1, UL 60947-4-1 |
| Approval | ABS, ATEX, BV, CCC, CSA, DNV-GL, EAC, IEC, LROS, RINA, UKCA, UL |
| Temp Rating | -20C to 60C |
| Construction Features | Phase Loss Protection, Motor Circuit Protector, Trip-Free Mechanism, RoHS Compliant, Mercury Free |
Product FAQs
8 answersWhat is the advantage of the EverLink terminals on the GV3P73?
The patented EverLink screw terminals ensure permanent bare cable pressure. This design maintains constant tightening torque over time, preventing the connections from loosening due to the heavy thermal cycling and mechanical vibration typical in industrial motor applications.
How do I properly set the thermal trip on the GV3P73?
The breaker features a front-mounted dial to adjust the continuous thermal overload protection between 62A and 73A. This dial must be set precisely to match the Full Load Amperage (FLA) printed on the connected motor nameplate.
What is the magnetic short-circuit trip threshold for the GV3P73?
The instantaneous magnetic trip is factory-fixed to isolate short circuits immediately. For this 73A breaker, the fixed magnetic release operates at 1120A, which is approximately 15 times the nominal current rating.
Which contactors can be paired with this motor circuit breaker?
The GV3P73 is designed for direct integration with Schneider Electric TeSys Deca series contactors. They can be mechanically and electrically joined using dedicated TeSys connection accessories to build compact combination motor starters.
Which auxiliary contact blocks fit the GV3P73?
It accepts standard TeSys GV3 add-on accessories. You can install front-mounted auxiliary contact blocks like the GVAE11, or side-mounted blocks like the GVAN11 to provide remote open, closed, or tripped status signaling to your control system.
Which legacy Schneider or Telemecanique part does the GV3P73 replace?
This model serves as the direct replacement for the obsolete GV3ME80 motor protection circuit breaker. The GV3P73 upgrades the older push-button design to a rotary handle mechanism and introduces EverLink terminal technology.
Does the GV3P73 provide phase failure protection?
Yes, the integrated thermal-magnetic trip unit is phase-failure sensitive. If a phase is lost or highly unbalanced, the breaker will trip quickly to protect the connected three-phase motor from overheating and winding damage.
How is the GV3P73 secured inside a control panel?
The breaker is designed to snap securely onto a standard 35mm DIN rail. Alternatively, it features integrated mounting holes for direct screw-mounting onto the panel backplate if rail mounting is not preferred.
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