Family-Specific Guides
DT Series connectors are general-purpose sealed Deutsch connectors used for automotive wiring, agricultural equipment, industrial systems, construction machinery and general wiring harness applications. They are commonly selected for lighting, relays, solenoids, control circuits and serviceable equipment connections.
The DT Series is often the first Deutsch connector family to compare when you need a sealed connector that is more robust than a compact signal connector but does not require the higher-current capacity of a DTP connector.
This guide explains what DT Series connectors are, where they are used, how they compare with DTM and DTP connectors, and which contacts, wedgelocks, seals and tools are needed to complete a DT connector assembly.
Quick Answer: What Are DT Series Connectors?
DT Series connectors are sealed rectangular Deutsch connectors used for general-purpose wiring. They typically use Size 16 contacts and are commonly selected for lighting, relays, solenoids, equipment controls, automotive wiring and harness repairs.
| DT Series feature | What it means | Shop or guide |
|---|---|---|
| Connector family | Deutsch DT Series. | Shop DT Series |
| Typical contact size | Size 16 contacts. | Shop contacts |
| Typical use | General-purpose sealed wiring. | Selection guide |
| Common applications | Lighting, relays, solenoids, controls and equipment harnesses. | Application guide |
| Required accessories | Compatible contacts, wedgelocks, seals and tools. | Shop wedgelocks |
What Are DT Series Connectors?
DT Series connectors are part of the Deutsch connector family and are designed for serviceable sealed wiring connections. They are commonly used where a connector needs to be durable, disconnectable and suitable for demanding wiring environments.
In practical terms, DT connectors are often used as the standard choice for general-purpose circuits. They are larger than DTM connectors and smaller than DTP connectors, making them a useful middle-ground option for many wiring harnesses.
Browse the DT Series collection if you already know this is the correct family for your application.
DT Series Specifications
DT Series specifications should be checked alongside the exact product listing, selected contacts and wire gauge. The connector housing, contacts, wedgelocks and installation method all affect the final assembly.
| Specification | DT Series detail | Selection note |
|---|---|---|
| Connector family | Deutsch DT Series | General-purpose sealed connector family. |
| Typical contact size | Size 16 | Confirm exact contact and wire gauge before ordering. |
| Typical current range | Up to 13A per contact, depending on contact and conditions. | Check current requirement, wire gauge and environment. |
| Common cavity counts | 2, 3, 4, 6, 8 and 12-way configurations. | Match cavity count to the number of circuits. |
| Typical use | Lighting, relays, solenoids and general harness wiring. | Use DTP for higher-current circuits and DTM for compact signal wiring. |
| Accessories | Contacts, wedgelocks, seals, backshells and tools. | Confirm whether each product is housing-only or a kit. |
For electrical load guidance, read the Deutsch Connector Current Rating Guide.
Common Applications
Common applications for DT Series connectors include automotive wiring, work lights, auxiliary lighting, relays, solenoids, agricultural equipment, construction machinery, industrial controls and general wiring harness repairs.
| Application | Why DT Series fits | Related guide |
|---|---|---|
| Automotive wiring | Useful for lighting, controls and general-purpose vehicle circuits. | Automotive wiring guide |
| Auxiliary lighting | DT connectors are commonly used for 2-wire and multi-wire lighting circuits. | Shop DT Series |
| Relays and solenoids | DT is well suited to many control and equipment circuits. | Application guide |
| Agricultural equipment | Good fit for general farm machinery wiring and harness repairs. | Agricultural equipment guide |
| Construction machinery | Useful for serviceable equipment wiring exposed to vibration and dirt. | Installation guide |
| Industrial equipment | Works well for general control, monitoring and equipment harnesses. | Selection guide |
DT vs DTM vs DTP
DT, DTM and DTP connectors are related Deutsch rectangular connector families, but they serve different electrical and physical requirements. DT is the general-purpose middle option between compact DTM and higher-current DTP.
| Connector family | Typical contact size | Best for | Choose when... | Shop |
|---|---|---|---|---|
| DTM Series | Size 20 | Compact signal wiring. | You are wiring sensors, switches or CAN bus circuits. | Shop DTM |
| DT Series | Size 16 | General-purpose sealed wiring. | You are wiring lights, relays, solenoids or equipment harnesses. | Shop DT |
| DTP Series | Size 12 | Higher-current circuits. | You are wiring pumps, fans, motors or power accessories. | Shop DTP |
For a deeper family comparison, read DT vs DTM vs DTP Connectors: What’s the Difference?.
DT Connector Housings
DT connector housings are available in plug and receptacle configurations. In common DT part numbers, DT04 usually identifies a receptacle housing and DT06 usually identifies a plug housing.
| Receptacle housing | Mating plug housing | Cavity count | Shop |
|---|---|---|---|
| DT04-2P | DT06-2S | 2-way | Shop DT04-2P |
| DT04-3P | DT06-3S | 3-way | Shop DT04-3P |
| DT04-4P | DT06-4S | 4-way | Shop DT04-4P |
| DT04-6P | DT06-6S | 6-way | Shop DT04-6P |
| DT04-8P | DT06-8S | 8-way | Shop DT Series |
| DT04-12P | DT06-12S | 12-way | Shop DT Series |
For compatibility details, read the Deutsch Connector Mating Guide.
Contacts and Terminals
DT Series connectors typically use Size 16 contacts. The contact must match the connector family, pin or socket side, wire gauge and crimp tooling.
| Contact type | Common role | Selection note | Shop |
|---|---|---|---|
| Pin contacts | Male contacts used on the pin side of the connector. | Often associated with 0462 contact numbers. | Search 0462 contacts |
| Socket contacts | Female contacts used on the socket side of the connector. | Often associated with 0460 contact numbers. | Search 0460 contacts |
| Wire gauge | The selected contact must crimp correctly to the wire. | Check the contact listing before ordering. | Shop contacts |
For a deeper component guide, read Deutsch Contacts, Terminals & Accessories Guide.
Wedgelocks and Accessories
DT Series connectors use wedgelocks to provide secondary contact retention. Wedgelocks must match the connector housing, housing side and cavity count.
| Connector housing | Compatible wedgelock | Why it matters | Shop |
|---|---|---|---|
| DT04-2P | W2P | Receptacle-side wedgelock for a 2-way DT housing. | Shop W2P |
| DT06-2S | W2S | Plug-side wedgelock for a 2-way DT housing. | Shop W2S |
You may also need seals and accessories, backshells or Deutsch connector tools depending on the installation.
Choose DT Connectors by Application
Choose DT Series connectors when the application needs a serviceable sealed connector for general-purpose wiring. If the circuit is very compact or higher-current, compare DTM or DTP before ordering.
| Application need | Is DT a good fit? | Selection note |
|---|---|---|
| Lighting circuits | Yes | Common general-purpose DT application. |
| Relay and solenoid wiring | Yes | Often suitable when current and wire gauge match. |
| Agricultural equipment harnesses | Yes | Useful for exposed general wiring and repairs. |
| Compact sensor wiring | Sometimes | Compare DTM first for smaller low-current signal circuits. |
| Fuel pumps, fans or motors | Sometimes | Compare DTP if the circuit has a higher current requirement. |
Assembly and Installation Notes
DT Series connectors should be assembled with compatible contacts, correct crimping, fully seated contacts and the correct wedgelock. The connector should then be installed with proper harness routing, strain relief and inspection access.
| Check | Why it matters | Helpful guide |
|---|---|---|
| Correct contacts | Wrong contacts may not crimp, insert or retain correctly. | Contacts guide |
| Correct crimp | Poor crimps can create intermittent faults or heat. | Crimping mistakes guide |
| Contact seating | Contacts must be fully inserted before the wedgelock is installed. | Not locking guide |
| Wedgelock installation | Wedgelocks help retain and align contacts. | Assembly guide |
| Harness routing | Routing protects the connector from strain, heat and abrasion. | Installation guide |
DT Series Buying Checklist
Use this checklist before ordering DT Series connectors. It helps prevent missing components and compatibility mistakes.
| Checklist item | Confirm before ordering | Shop or guide |
|---|---|---|
| Connector family | DT Series is the correct family for the circuit. | Shop DT Series |
| Cavity count | 2, 3, 4, 6, 8 or 12-way configuration matches the circuit count. | Shop DT connectors |
| Plug and receptacle | The mating halves are compatible. | Mating guide |
| Contacts | Size 16 pin and socket contacts match wire gauge. | Shop contacts |
| Wedgelocks | Wedgelocks match the housing side and cavity count. | Shop wedgelocks |
| Tools | Crimp and removal tools match the selected contacts. | Shop tools |
Common DT Series Selection Mistakes
Most DT Series mistakes happen when users choose by appearance, forget contacts or wedgelocks, or use DT connectors where DTM or DTP would be a better fit.
| Mistake | Why it causes problems | Better practice |
|---|---|---|
| Buying only the housing | The housing may not include contacts, wedgelocks or seals. | Confirm the full assembly before ordering. |
| Mixing DT, DTM and DTP parts | Different families use different housings, contacts and wedgelocks. | Keep components matched to the same family. |
| Choosing DT for compact sensor wiring | DTM may be a better fit where space is limited and current is low. | Compare DTM for compact signal circuits. |
| Choosing DT for a higher-current circuit | DTP may be better for pumps, fans, motors or higher-current loads. | Check current requirement before ordering. |
| Using the wrong crimp tool | Poor crimps can affect contact retention and electrical reliability. | Use tools matched to the contact and wire gauge. |
FAQs: DT Series Connectors Explained
What are DT Series connectors?
DT Series connectors are general-purpose sealed Deutsch connectors used in automotive, agricultural, industrial and equipment wiring applications. They are commonly used for lighting, relays, solenoids, controls and general wiring harnesses.
What are DT Series connectors used for?
DT Series connectors are commonly used for lighting, relays, solenoids, control circuits, automotive wiring, agricultural equipment, construction machinery and general equipment harness repairs.
What contact size do DT Series connectors use?
DT Series connectors typically use Size 16 contacts. Always confirm the exact contact, wire gauge and product listing before ordering or crimping.
What is the difference between DT, DTM and DTP connectors?
DTM connectors are used for compact lower-current signal wiring, DT connectors are used for general-purpose sealed wiring, and DTP connectors are used for higher-current circuits.
Are DT Series connectors waterproof?
DT Series connectors are commonly selected for sealed and harsh-environment wiring, but final protection depends on using compatible housings, contacts, wedgelocks, seals and correct assembly.
Do DT Series connectors need wedgelocks?
Yes. DT Series connector assemblies use wedgelocks to provide secondary contact retention and alignment. The wedgelock must match the connector housing, side and cavity count.
Final Recommendation
Choose DT Series connectors when you need a general-purpose sealed connector for lighting, relays, solenoids, automotive wiring, equipment harnesses or serviceable field repairs.
Before ordering, confirm the cavity count, plug and receptacle pair, Size 16 contacts, wire gauge, wedgelocks, seals and tools. Browse DT Series connectors, contacts and terminals, wedgelocks, seals and accessories and Deutsch connector tools to complete your DT connector assembly.
