Enclosure Locks for NEMA-Style Traffic Control Boxes
CCL/Corbin compatible enclosure locks for traffic control cabinets and NEMA control boxes. CR #2 and GR #401 keyways. Direct retrofit for CCL A55481, A15481, 55481, and RS575GS.
NEMA Traffic Control Applications
Designed specifically for traffic signal cabinets, control boxes, and outdoor enclosures. Available in CR keyway (Key #2) and GR keyway (Key #401) for compatibility with municipal standards.

E5D Deadbolt Lock

E5L Latchbolt Lock
| Model | Function | Keyway | Stock Key | Finish | Handing | Actions |
|---|---|---|---|---|---|---|
| E5D | Spring Deadbolt (square latch) | CR (Key #2) | #2 | US3 | Right-hand | View Details → |
| E5D (Solid Brass) | Spring Deadbolt (square latch) | CR (Key #2) | #2 | US4 (Brass) | Right-hand | View Details → |
| E5DG | Spring Deadbolt (square latch) | GR (Key #401) | #401 | US3 | Right-hand | View Details → |
| E5L | Spring Latchbolt | CR (Key #2) | #2 | US3 | Right-hand | View Details → |
Compatibility & Retrofits
- E5D: Retrofits CCL A55481 / A15481 deadbolt enclosure locks
- E5L: Retrofits CCL 55481 latchbolt enclosure locks
- E5D (Solid Brass): Premium US4 solid brass finish, retrofits A55481 / A15481
- E5DG: GR keyway version (Key #401) for municipalities using GR standards
- Same barrel diameter (7/8") and mounting pattern
- No cabinet modification required for retrofit
Keyways & Codes
CR Keyway (E5D, E5L, E5D Brass):
- • Standard: Keyed alike to #2
- • Key blank: KBCR-5-NP
- • Pre-cut key: KBCR-KA2-NP
- • Custom keying available: KBCR-5-CUST
GR Keyway (E5DG):
- • Standard: Keyed alike to #401
- • Key blank: KBGR-5-NP
- • Pre-cut key: KBGR-KA401-NP
- • Custom keying available: KBGR-5-CUST
Product Details
E5D vs E5L — What's the Difference?
- E5D: Spring deadbolt with square latch. Positive locking mechanism for maximum security.
- E5L: Spring latchbolt. Easier to operate, suitable for frequent access applications.
- Both available in CR keyway (Key #2)
- Both include 2 keys per lock
Material Options
- US3 (Zinc Die Cast): Standard finish, excellent corrosion resistance for outdoor use
- US4 (Solid Brass): Premium material with superior durability and appearance
- 7/8" barrel diameter on all models
- Right-hand configuration available
What Fits What?
| Your Current CCL/Corbin Lock | Olympus Replacement | Notes |
|---|---|---|
| A55481 / A15481 (Deadbolt) | E5D | Spring deadbolt, CR keyway |
| 55481 (Latchbolt) | E5L | Spring latchbolt, CR keyway |
| A55481 / A15481 (Premium) | E5D (Solid Brass) | US4 solid brass, CR keyway |
| GR keyway enclosures | E5DG | Key #401, GR keyway |
Frequently Asked Questions
What is CR keyway vs GR keyway?
CR and GR are standardized keyways used by municipalities and utility companies for traffic control equipment. CR keyway typically uses Key #2, while GR uses Key #401. Check your existing equipment or municipal specifications to determine which keyway you need.
Can I get custom keying?
Yes! While we stock standard Key #2 (CR) and Key #401 (GR), custom keying is available for both keyways. This allows you to integrate with your existing key system or create a unique key code for your installation.
What's the difference between deadbolt and latchbolt?
E5D features a spring deadbolt with positive locking — the bolt must be manually retracted with the key for maximum security. E5L features a spring latchbolt that can be pushed closed without a key, making it more convenient for frequent access while still providing secure locking.
Are these suitable for outdoor use?
Yes! All E5 Series locks are designed for outdoor NEMA enclosures and traffic control boxes. The US3 zinc die cast finish provides excellent corrosion resistance, while the US4 solid brass option offers even greater durability in harsh weather conditions.
What does "right-hand" handing mean?
Handing refers to the orientation of the lock mechanism. Right-hand configuration is standard for most NEMA enclosures. The lock is designed to install with the key cylinder on the right side when viewed from outside the enclosure.
Request a Quote or Bulk Order
Contact us for competitive pricing on large orders and custom keying for municipal installations.
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