Approved Vendor

Ground-Monitoring Turn-Lock Connector

Manufacturer part: 4978T21

Check the status of a ground connection—a green light signals that connectors have power and are safely grounded. A red light indicates power only. The lights are visible from any angle for quick identification. A quarter turn locks connectors in place to remain secure in high-vibration applications and prevent accidental disconnection.

✓ Normalized specifications✓ Supplier verified
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In stock
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Technical data

Specifications

Normalized product attributes for faster comparison and sourcing.

OD
2.2"
ECCN
EAR99
RoHS
Not Compliant
Color
Black
DFARS
Specialty Metals COTS-Exempt
REACH
Not Compliant
Shape
Straight
Gender
Male
Current
20A
Voltage
125V AC/250V AC
Features
Ground-Indicating Light, Power-Indicating Light
Grounding
Grounded
NEMA Style
L14-20
Schedule B
853669.5050
Application
Power
For Cable OD
0.39"-1.15"
Connection Type
Turn Lock
Housing Material
Plastic
Number of Blades
4
USMCA Qualifying
No
Country of Origin
Mexico
Specifications Met
UL Listed, C-UL Listed, Fed. Spec. W-C-596, UL 498
Wire Connection Type
Screw Terminals
Electrical Connector Component
Plug

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