LH0510 Leviton 23451-20 main

Leviton

LH0510 (23451-20)

Shunted, straight insertion T8 only, lamp holder with slide on mounting

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Description

The LH0510 Leviton 23451-20 is a G13 medium bipin base, shunted* lamp holder with notches for slide on mounting. The Leviton 23451-20 is a T8 (G13 base) fluorescent or LED lamp holder has a straight insertion for U-lamps and also the ease of inserting the LED or fluorescent tubular lamp. It has an 18mm lamp axis (height above fixture pan to center of lamp). It is rated up to 660W-600V and is UL and CSA listed. The LH0510 Leviton 23451-20 has quick connects that allows for easy installation of wiring. Used with instant start ballasts and LED bulbs that require a shunted* lamp holder. It is made of durable polycarbonate.

*The primary difference between shunted and non-shunted lamp holders (also known as tombstones or sockets) lies in how the electrical current flows through them to the lamp pins:

Shunted Lamp Holders:
- Internal Connection: Shunted lamp holders have their two electrical contacts internally connected or "shunted." This means there's a single electrical path through the socket.
- Single Wiring Track: They receive voltage through a single set of wires that then spreads to both contacts that connect with the lamp pins.
- Continuity: If you test a shunted socket for continuity across its two contacts, a multimeter will show a closed circuit (it will beep or light up).
- Usage: Shunted lamp holders are typically used with:
o Instant start ballasts in fluorescent lighting. These ballasts provide a high initial voltage to start the lamp and require the pins at each end to be at the same electrical potential initially.
o Some plug-and-play LED tubes that are designed to work with existing instant start ballasts.
o Double-ended direct wire LED tubes: Although they can also work with non-shunted sockets, shunted sockets are an option.

Non-Shunted Lamp Holders:
- Separate Contacts: Non-shunted lamp holders have two separate electrical contacts that are not internally connected. This creates two distinct electrical paths.
- Dual Wiring Tracks: They require two separate wires (line and neutral) to connect to the two contacts within the socket. Each contact receives voltage independently.
- No Continuity: Testing a non-shunted socket for continuity across its two contacts will show an open circuit (no beep or light up on the multimeter).
- Usage: Non-shunted lamp holders are required for:
o Rapid start, programmed start, and dimming ballasts in fluorescent lighting. These ballasts preheat the lamp filaments, and each end of the lamp needs to be connected separately to the ballast.
o Single-ended direct wire (ballast bypass) LED tubes: These tubes receive power on one end only, requiring separate line and neutral connections to the non-shunted socket on that end. The sockets on the other end simply provide mechanical support.
o Some plug-and-play LED tubes designed to work with specific ballast types (like rapid or programmed start).

  • Leviton
  • Model# 23451-20
  • 1.34 x 1.16 x 0.72
  • 18mm lamp axis
  • G13 medium bipin
  • Shunted
  • For T8 and T8 U-shaped LED or fluorescent tubes
  • Straight insertion
  • Slide on mounting
  • Quick wire connects
  • UL, CSA
  • Similar or equal to the Leviton 23451-020 and Miller OEM L23451-20
Specifications
Specification
Status
Available
Case Qty
700
Country of Origin
Mexico
Certifications / Approvals
UL, CSA
UL File No.
E-5833
Rated Wattage
660w
Rated Voltage
600v
Bulb Shape
T8 U Bend
Base Type
G13
Material
White Thermosetting Urea
Termination
Quickwire 18AWG
Mounting Type
Slide-On, Screw Mount
Shunt Type
Shunted
Dimensions(L/W/H)
_x_x1.344
Weight
0.03
General
Brand
Leviton
Item #
70566
MSRP
$2.46
Category
Linear Bi-Pin T8 BiPin
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Shunted vs. Non-Shunted Lampholders and how to tell the difference.

Customer Reviews
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Top Reviews
Great item!
by J N on September 13, 2019
 
 
 
 
 

Item was great, did exactly what it was supposed to do. Replaced a bad unit in my fixture, easy and quick to install!

3 of 3 found this helpful.Was this review helpful to you? yes no
Impressive!
by Accounts P on September 19, 2019
 
 
 
 
 

Would highly recommend this company! Received my order in 2 days and pricing was very responsible. Thanks!

1 of 1 found this helpful.Was this review helpful to you? yes no
Questions & Answers
Don't see what you're looking for?

A

Yes we do blind ship, and drop ship if requested at time of order.

By Brian R on October 01, 2020. 
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We specialize in providing cost effective replacement ballasts along with a large assortment of lampholders and lampholder accessories. We also pride ourselves on same day shipping! All orders received before 1pm PST will ship same day, providing all items are in stock and it's not a special order.

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