Product Description
Eaton Arrow Hart Pro Grip CS8364EX Locking Connector is an extra heavy-duty, California-standard (non-NEMA) connector built for industrial 3-phase 250V systems. Rated 50A with three-pole, four-wire (grounding) back-wiring, it features a rugged glass-filled nylon Pro Grip body, zinc-plated brass contacts, and a wide 0.44–1.06 in cord range for dependable field connections. Specs verified from the Eaton specification sheet.
Key Specs
- Amperage/Voltage: 50A, 3Ø 250V
- Configuration: California standard, Non-NEMA
- Poles/Wires: 3-pole / 4-wire (grounding)
- Wiring Method: Back wiring
- Cord Range: 0.44–1.06 in (11.1–26.0 mm)
- Materials: Glass-filled nylon body; zinc-plated brass contacts
- Color: Black / Red Pro Grip housing
Why Buy Here?
- Free shipping on orders over $250
- Fast handling & expert support
- Commercial invoicing & tax-exempt available
Product Benefits
- Industrial durability with extra heavy-duty Pro Grip housing and metal hardware.
- Safer handling—textured grip improves connect/disconnect under gloves.
- Wide cable fit accepts common industrial cord jackets from 0.44–1.06 in.
- Code-ready with cULus listing and robust 45 lbf-in terminal torque rating.
Key Features
- California-standard, non-NEMA locking interface for 250V three-phase equipment.
- 50A 3-pole/4-wire design supports demanding loads.
- Back-wire terminations for quick assembly and solid strain relief.
- Glass-filled nylon body with zinc-plated brass contacts.
- −40 to 105 °C operating temperature for harsh environments.
Specifications
Technical Specs
| Catalog Number | CS8364EX |
| UPC | 032664663932 |
| Type | California-standard locking connector (Non-NEMA) |
| Amperage / Voltage | 50A / 3Ø 250V |
| Poles / Wires | 3 poles / 4 wires (grounding) |
| Device Grade | Extra heavy duty, industrial |
Physical Specs
| Body Material | Glass-filled nylon (Pro Grip) |
| Contact Material | Zinc-plated brass |
| Color | Black / Red |
| Cord Diameter Range | 0.44–1.06 in (11.1–26.0 mm) |
| Dimensions (L × W × H) | 6.94 × 3.61 × 3.38 in |
| Weight | 1.05 lb |
Performance & Installation
| Wiring Method | Back wiring |
| Allowable Wire Size | #10–4 AWG conductors |
| Terminal Torque | 45 lbf-in |
| Operating Temperature | −40 to 105 °C (−40 to 221 °F) |
| Compliance & Safety | cULus Listed |
Application Examples
- Three-phase 250V machinery and portable equipment using California-standard connectors.
- Industrial plants, film & event power, and generator hookups requiring extra heavy-duty connectors.
- Temporary power distribution with wide cord range and high retention locking.
- Maintenance teams standardizing on Pro Grip for safer handling and durability.
Installation Tips
- Confirm the system is 3Ø 250V and that mating devices share the same California-standard pattern.
- Use conductors within the specified range (#10–4 AWG) and tighten terminals to 45 lbf-in.
- Adjust the cord clamp for 0.44–1.06 in jacket diameter to maintain proper strain relief.
- Maintain consistent phase identification across plug/receptacle/connector to prevent rotation issues.
- De-energize circuits and follow facility LOTO procedures before assembly.
Frequently Asked Questions
Is this a NEMA connector?
No. It is a California-standard, non-NEMA locking connector commonly used on industrial 250V systems.
What wire size does it accept?
The specification lists #10–4 AWG conductors. If your application calls for #6 AWG, verify cord OD and terminal fit per the spec sheet.
What is the terminal torque?
Tighten terminal screws to 45 lbf-in to ensure secure connections.
What materials are used?
A glass-filled nylon Pro Grip body with zinc-plated brass contacts provides strength, heat resistance, and conductivity.
What temperature range is it rated for?
It operates from −40 to 105 °C (−40 to 221 °F) for harsh environments.
Does it support single-phase loads?
The device is designed for 3-pole/4-wire three-phase systems. Use only where the pattern and system requirements match.
