motor24/7 Emergency Service

Explosion-Proof Motor Service

Specialized service for Class I Division motors in

Function

Drives fans, pumps, and equipment in hazardous (classified) locations where flammable vapors may be present, with design features that prevent ignition

Location

Inside spray booth classified areas or within 20 feet of spray operations

Typical Lifespan

20-30 years with proper maintenance; requires periodic certification

Emergency Service Get Service Quote

Service Options

Repair Service

Replacement Service

Preventive Maintenance

24/7 Emergency Available

Signs of Explosion-Proof Motor Failure

Motor not starting or running rough

Overheating or tripping thermal protection

Unusual noise: grinding, humming, or squealing

Visible damage to enclosure or conduit fittings

Vibration indicating bearing issues

Paint or debris blocking cooling fins

Loose or damaged explosion-proof fittings

What Causes Explosion-Proof Motor Failure

Understanding the root cause helps determine whether repair or replacement is the best option.

Bearing Wear

common

Like all motors, bearings eventually wear and require replacement.

Winding Failure

occasional

Motor windings can fail from age, moisture, or overheating.

Overloading

occasional

Motor running above rated load causes overheating and premature failure.

Paint/Debris Buildup

occasional

Overspray on motor blocks cooling and causes overheating.

Fitting Damage

rare

Explosion-proof conduit fittings damaged, compromising rating.

Repair vs. Replace Decision Guide

Repair When...

Bearings can be replaced with motor rating maintained
Motor can be sent out for certified rebuild
Electrical connections need service only

Replace When...

Motor windings have failed
Enclosure integrity is compromised
Motor is obsolete or inefficient
Upgrading to premium efficiency motor
Classification requirements have changed

Cost Comparison

Bearing replacement $400-1,000. Motor rebuild $1,500-4,000. New explosion-proof motor $2,000-8,000+ depending on size.

Lifespan Considerations

Explosion-proof motors cost more but last longer when properly maintained. Never substitute standard motors in classified locations.

Brands Using This Component

We service explosion-proof motor across all major paint booth brands.

Baldor-Reliance

Class I Div 1Class I Div 2

Marathon

Explosion-Proof

WEG

Hazardous Location

Leeson

XP Motors

US Motors

Class I Motors

Our Explosion-Proof Motor Service Process

Classification Verification

Confirm motor rating matches area classification requirements.

Physical Inspection

Inspect enclosure, fittings, and conduit for damage or improper modifications.

Electrical Testing

Test windings, insulation resistance, and electrical connections.

Mechanical Service

Service or replace bearings, clean cooling surfaces.

Documentation

Document motor specifications and service for compliance records.

Explosion-Proof Motor Service FAQ

Common questions about explosion-proof motor repair and replacement

Explosion-proof motors have specially designed enclosures that contain any internal explosion and prevent it from igniting the surrounding atmosphere. They have tight-fitting joints, special conduit connections, and are tested and listed for specific hazardous classifications.

Motors inside the spray booth or within 20 feet of spray operations typically must be rated for Class I, Division 1 or 2 locations per NEC and NFPA 33. Motors outside classified areas may use standard ratings. Classification depends on specific booth design and ventilation.

Explosion-proof motors should only be serviced by qualified shops that can maintain the motor's certification. Improper repairs can void the rating. WERCS uses certified motor shops to ensure compliance is maintained.

Have a question not answered here?

Call us at (877) 489-3727

Related Components

Exhaust Fan Supply Fan Vfd Repair

Related Troubleshooting

Motor Failure Electrical Issues

Need Explosion-Proof Motor Service?

WERCS technicians have the expertise and parts to get your explosion-proof motor working properly. 24/7 emergency service available.

Call (877) 489-3727 Request Service Quote