Technical Guide
Deutsch wedgelocks are secondary locking components used to help retain and position contacts inside compatible connector housings. The correct wedgelock must match the connector family, number of positions and pin or socket side of the housing.
For example, a 2-way DT04-2P receptacle uses a W2P pin-side wedgelock, while the mating DT06-2S plug uses a W2S socket-side wedgelock.
This guide explains what a wedgelock does, how W2P and W2S differ, how DT, DTM and DTP wedgelock part numbers are structured, and what to check before choosing a replacement or building a complete connector assembly.
Quick Recommendation
Choose a Deutsch wedgelock by matching four things: connector family, cavity count, pin or socket side, and any required keying or suffix variant.
For the common 2-way DT pair, use W2P with the pin-side DT04-2P housing and W2S with the socket-side DT06-2S housing.
Do not select a wedgelock from cavity count alone. A 2-way DT wedgelock is not automatically suitable for a 2-way DTM or DTP housing.
What Is a Deutsch Wedgelock?
A wedgelock is the secondary locking component installed in compatible Deutsch connector housings after the contacts have been inserted. It helps keep the contacts properly positioned and retained within the housing.
The wedgelock works together with the connector housing and contacts rather than replacing the housing's primary contact-retention features.
| Component | Role |
|---|---|
| Housing | Holds and positions the connector contacts. |
| Pin / socket contacts | Create the electrical connection between the mating connector halves. |
| Wedgelock | Provides secondary contact retention and alignment within a compatible housing. |
| Seal system | Forms part of the connector's environmental sealing system where applicable. |
Browse the full Deutsch wedgelock collection when you already know the part number or connector configuration you need.
How to Choose the Correct Deutsch Wedgelock
Start with the connector housing rather than the wedgelock. The housing part number gives you the information needed to narrow down the compatible secondary lock.
| Check | What to Match | Example |
|---|---|---|
| Connector family | DT, DTM, DTP or another compatible family. | DT04-2P requires a DT-family wedgelock. |
| Cavity count | The number of positions in the housing. | A 2-way housing requires a compatible 2-way wedgelock. |
| Contact side | Pin-side or socket-side configuration. | W2P versus W2S. |
| Variant / keying | Any suffix or keyed configuration required by the exact housing. | W2PA, W2PB and other keyed variants should not be assumed interchangeable. |
W2P vs W2S: What Is the Difference?
W2P and W2S are common 2-way Deutsch DT wedgelocks, but they fit opposite contact configurations.
| Wedgelock | Side | Common Housing | Positions |
|---|---|---|---|
| W2P | Pin side | DT04-2P | 2-way |
| W2S | Socket side | DT06-2S | 2-way |
W2P and W2S are therefore not alternatives for the same housing. In a complete DT04-2P and DT06-2S connection, one wedgelock is used on each side.
For the complete mating relationship, read DT04 vs DT06: Plug vs Receptacle Explained.
Deutsch Wedgelock Part Numbers by Connector Family
Different connector families use different wedgelock naming patterns. This is why the same number of positions is not enough to confirm compatibility.
| Connector Family | Example Pin-Side Part | Example Socket-Side Part | Shop |
|---|---|---|---|
| DT | W2P | W2S | DT Series |
| DTM | WM-2P | WM-2S | DTM Series |
| DTP | WP-2P | WP-2S | DTP Series |
| DTV | WV-18P | WV-18S | DTV Series |
The catalog also contains wedgelocks for high-density connector families, so always confirm the exact product rather than inferring compatibility from the first letter alone.
Match the Wedgelock to the Connector Cavity Count
The wedgelock must match the number of contact positions in the connector housing. Common DT examples include W2P/W2S for 2-way housings, W4P/W4S for 4-way housings and W12P/W12S for 12-way configurations.
A wedgelock with the wrong cavity count will not correctly match the intended housing.
Keyed and Suffix Wedgelock Variants
Some wedgelocks are available with additional letters or suffixes such as W2PA, W2PB, W4PA or W4PB. These identify specific variants and should not be treated as automatically interchangeable with the unsuffixed part or with another keyed version.
The current catalog includes multiple keyed DT wedgelocks, including W2PA, W2PB, W2PC and keyed W4 variants. :contentReference[oaicite:5]{index=5} :contentReference[oaicite:6]{index=6}
If the housing itself has an extended part number or keying suffix, verify the exact mating and wedgelock requirements before ordering.
When Is the Wedgelock Installed?
The wedgelock is installed after the correctly crimped contacts have been inserted into the appropriate housing cavities. It should seat correctly without requiring excessive force.
If a wedgelock will not seat, do not force it. Check that:
- Every contact is fully inserted.
- The correct wedgelock is being used.
- The cavity count and connector family match.
- The pin/socket side is correct.
- No contact is misaligned or partially backed out.
For assembly steps, see How to Assemble Deutsch DT Connectors.
Mistakes We See
Ordering by cavity count alone
A 2-way DT, DTM and DTP connector can require different wedgelocks. Match the connector family as well as the number of positions.
Mixing pin-side and socket-side wedgelocks
W2P and W2S fit opposite sides of a common 2-way DT connection.
Forcing a wedgelock that will not seat
A wedgelock that will not seat can indicate an incorrectly inserted contact, wrong component or incompatible variant.
Assuming keyed variants are interchangeable
Additional letters and suffixes matter. Confirm the exact product listing before substituting one variant for another.
Buying a housing without its secondary lock
When building an assembly from separate components, check whether the required wedgelock is supplied or needs to be ordered separately.
FAQs
What does a Deutsch wedgelock do?
A Deutsch wedgelock provides secondary retention and alignment for contacts installed in a compatible connector housing.
What is the difference between W2P and W2S?
W2P is the common 2-way DT pin-side wedgelock used with housings such as DT04-2P. W2S is the corresponding socket-side wedgelock used with housings such as DT06-2S.
Does W2P fit DT06-2S?
No. DT06-2S uses the socket-side W2S wedgelock. W2P is used on the compatible pin side such as DT04-2P.
Do DT and DTM connectors use the same wedgelocks?
No. DT and DTM are different connector families and use different wedgelock part-number families. Confirm the exact housing before selecting the secondary lock.
Can I install a Deutsch connector without a wedgelock?
Where a connector housing is designed to use a wedgelock, the correct secondary lock forms part of the intended connector assembly. Use the compatible part specified for the housing.
Why will my Deutsch wedgelock not go in?
Check that the contacts are fully seated, the wedgelock matches the family and cavity count, and the correct pin or socket side and variant have been selected. Do not force an incompatible or misaligned wedgelock.
Final Recommendation
Start with the connector housing part number, then match the wedgelock by family, cavity count, pin/socket side and any keying or suffix requirement.
Browse Deutsch wedgelocks once you know the required configuration, or use the Deutsch Connector Mating Guide if you still need to identify the correct connector pair.
