Square D GV3P18 Motor Protection Circuit Breaker
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Square D GV3P18 - 18A 3 Pole Motor Protection Circuit Breaker
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Description
Part of the TeSys GV3 series, this 18A motor circuit protector delivers reliable thermal-magnetic defense for industrial control applications. It features an adjustable thermal trip range of 12-18A and fixed magnetic protection. Designed for DIN-rail mounting, it integrates perfectly with TeSys Deca contactors and GV3 accessories. Rated for 50kAIC at 480Y/277V, it offers robust fault clearing. The unit includes EverLink creep-compensating terminals for secure, long-lasting wire connections.Specifications
| Brand | Square D |
|---|---|
| Part Number | GV3P18 |
| Series | GV3 |
| Amperage | 18A |
| Poles | 3 |
| Mounting Style | DIN Rail |
| Voltage | 240VAC, 480Y/277VAC, 600Y/347VAC, 208VAC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 50kA @ 480Y/277VAC, 10kA @ 600Y/347VAC |
| Amperage Range | 12-18A |
|---|
| 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 thermal adjustment range for the GV3P18 motor circuit breaker?
The thermal overload protection can be adjusted between 12 and 18 amps to precisely match the full load amps of your motor.
What is the fixed magnetic tripping current for this breaker?
The magnetic short-circuit trip is fixed at 252 amps, which is 14 times the maximum nominal current rating.
What type of terminals does the GV3P18 use?
It features EverLink BTR screw connectors. These creep-compensating terminals provide constant tightening pressure to prevent loose connections caused by vibration or thermal cycling.
How is the GV3P18 mounted in a control panel?
It can be clipped onto a standard 35mm symmetrical DIN rail or directly panel mounted using three M4 screws.
Which contactors are designed to pair with this motor protection circuit breaker?
The GV3P18 integrates directly with Schneider Electric TeSys Deca contactors to form complete Type 1 or Type 2 motor starter assemblies.
Can I add auxiliary contacts to this manual motor starter?
Yes, it is compatible with standard TeSys GV3 auxiliary contact blocks, which can be mounted on the front or side of the unit for status and trip signaling.
Does the GV3P18 feature a padlockable handle for maintenance safety?
Yes, the front rotary knob is padlockable in the OFF position to support standard lockout and tagout procedures.
Does this breaker provide phase failure protection?
Yes, it includes built-in phase failure sensitivity to protect three-phase motors from overheating and damage if a phase is lost.
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