Twist Lock Plugs The Complete Buyer's Guide NEMA L-Series | Industrial Grade | UL Listed
Linvox Corporation — Since 1988
What Is a Twist Lock Plug? ⚡ Rated for 15A – 30A applications
A twist lock plug is an electrical connector designed to lock in place when inserted and rotated — preventing accidental disconnection in demanding industrial and commercial environments.
� Locking mechanism prevents pull-out
✅ UL Listed & NEMA standard compliant
�Ideal for industrial & commercial use
Source: linvoxcorp.com/products-category/twist-lock-plugs/
Linvox Twist Lock Plug Product Line Model
NEMA Type
Voltage
Amperage
Poles/Wires
EL-317
NEMA L5-15P
125V
15A
2P/3W
EL-311
NEMA L5-20P
125V
20A
2P/3W
EL-315
NEMA L5-30P
125V
30A
2P/3W
EL-318
NEMA L6-15P
250V
15A
2P/3W
EL-312
NEMA L6-20P
250V
20A
2P/3W
EL-316
NEMA L6-30P
250V
30A
2P/3W
EL-313
NEMA L14-20P
125/250V
20A
3P/4W
EL-314
NEMA L14-30P
125/250V
30A
3P/4W
Full specs: linvoxcorp.com/products-category/twist-lock-plugs/
NEMA L5 vs L6 Twist Lock Plugs – Key Differences NEMA L5 Series (125V)
NEMA L6 Series (250V)
•
Single-phase 125V AC
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Single-phase 250V AC
•
2-pole, 3-wire grounded
•
2-pole, 3-wire grounded
•
Available: 15A, 20A, 30A
•
Available: 15A, 20A, 30A
•
Models: EL-317, EL-311, EL-315
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Models: EL-318, EL-312, EL-316
•
Common in offices, small equipment
•
Common in heavy machinery & labs
•
Compatible with standard 120V circuits
•
Used in data centers & HVAC units
•
Ideal for generators & UPS systems
•
Higher power, industrial grade
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Where Are Twist Lock Plugs Used? Data Centers
Industrial Machinery
Generators
Secure connections for servers, UPS systems, and PDUs requiring uninterrupted power.
Heavy equipment, motors, and compressors that need vibration-resistant connections.
Portable and standby generators use twist lock for safe, reliable load connections.
Healthcare Facilities
Construction Sites
HVAC Systems
Medical-grade equipment in hospitals where secure connections are critical.
Temporary power distribution on job sites where accidental disconnection is dangerous.
Air handling units and large compressors demand 250V locking connections.
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How to Choose the Right Twist Lock Plug 1
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Determine Voltage Identify if your circuit is 125V (L5 series) or 250V (L6 series). Check your panel or equipment nameplate.
Match Amperage Choose 15A, 20A, or 30A based on your equipment's rated current draw. Always match or exceed the load requirement.
Check Pole & Wire Config 2-pole/3-wire for standard setups; 3-pole/4-wire (L14 series) for 125/250V split-phase applications.
Verify NEMA Code The NEMA designation (e.g., L5-15P) must match the receptacle exactly. 'P' = plug; 'R' = receptacle.
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Why Choose Linvox Corporation?
35+
UL
100%
9+
Years in Business
Listed Products
Custom Solutions
Twist Lock Models
Since 1988 – Formerly Tumbler Corporation
All plugs meet UL & NEMA standards
Custom power cords & value-added services
From L5-15P to L14-30P configurations
Linvox is the bridge to your power — engineering-grade products with expert support. Visit: linvoxcorp.com/products-category/twist-lock-plugs/
Ready to Order Twist Lock Plugs? Linvox Corporation carries a full range of NEMA twist lock plugs for industrial, commercial, and specialty applications. � Website | www.linvoxcorp.com � Phone | (510) 657-3002 ✉️ Email |
[email protected] � Hours | Monday–Friday: 8AM–5PM Get a Quote Today — Linvox Corporation
