Copper Wire Connector Manufacturer Overview
What is a UR connector?
A UR connector is a red gel-filled IDC splice connector used to join two or three supported solid copper telephone wires without stripping the insulation. During crimping, the IDC contact cuts through the wire insulation and makes electrical contact with the conductor, while the gel helps reduce moisture exposure around the splice area. UR is part of the red jelly crimp connector family. Buyers usually choose UR when the application calls for a red 2-wire or 3-wire connector, especially for repair, tap splice, or field maintenance work in copper telephone cable systems.
Specifications
UR connector technical data
These are the confirmed technical details for Mintel UR connectors used in supported copper telephone wire repair and tap splice work.
| Parameter | Value |
|---|---|
| Connector type | Gel-filled IDC splice connector |
| Wire count | 2-wire or 3-wire splice |
| Wire range | 0.4-0.9 mm / 26-19 AWG solid copper wire |
| Maximum insulation O.D. | 1.52 mm |
| Body material | PP plastic |
| Contact material | Tin-plated phosphor-bronze IDC contact |
| Contact format | Dual IDC contact |
| Gel-filled | Yes |
| Color | Red |
| Cat.5 compatibility | Suitable for Cat.5 cable requirements when wire size and installation conditions match |
| Wire preparation | No stripping required for supported wires |
| Typical use | Copper telephone wire repair, 2-wire or 3-wire splice work, tap splice requirements |
| Selection note | For yellow 2-wire splice requirements in the same 0.4-0.9 mm wire range, review the UY2 connector. For red 2-wire or 3-wire splice requirements with a larger maximum insulation outside diameter, review the UR2 connector. |
Installation
UR connector installation steps
UR connectors are installed by inserting two or three supported solid copper wires into the connector ports and crimping the red cap with a compatible crimping tool or suitable parallel-jaw pliers. No wire stripping, soldering, heat shrink, or tape is required for supported wire sizes.
- Prepare the wire ends: cut the solid copper wires with clean, square ends. Do not strip the insulation.
- Insert the wires: push each wire fully into the UR connector ports until they bottom out.
- Confirm wire count: use UR for supported 2-wire or 3-wire splice requirements.
- Crimp the connector: press the red cap evenly until the connector is fully seated.
- Check the splice: confirm that the cap is closed and all wires are held firmly.
- Tool note: compatible crimping tools can be discussed for bulk or project orders.
Model comparison
UR compared with UY2 and UR2 connectors
Buyers often compare UR with UY2 and UR2 because the three models cover the most common choice points around wire count, connector color, and insulation diameter. UR and UY2 share the same 0.4-0.9 mm wire range, but UR is red and supports 2-wire or 3-wire splice work. UR and UR2 are both red connectors for 2-wire or 3-wire requirements, but UR2 supports a larger maximum insulation outside diameter.
- Choose UR: red 2-wire or 3-wire splice where the maximum insulation O.D. is up to 1.52 mm.
- Choose UY2: yellow 2-wire splice when the project requires a yellow connector format.
- Choose UR2: red 2-wire or 3-wire splice when the insulation O.D. requirement is up to 2.08 mm.
| Parameter | UR | UY2 | UR2 |
|---|---|---|---|
| Color | Red | Yellow | Red |
| Wire count | 2-wire or 3-wire | 2-wire | 2-wire or 3-wire |
| Wire range | 0.4-0.9 mm / 26-19 AWG | 0.4-0.9 mm / 26-19 AWG | 0.4-0.9 mm / 26-19 AWG |
| Max insulation O.D. | 1.52 mm | 2.08 mm | 2.08 mm |
| Blade/contact | Dual IDC contact | Single IDC contact | Dual IDC contact |
| Typical use | Red connector for repair and tap splice work | Yellow 2-wire splice for larger wire or insulation diameter requirements | Red connector for 2-wire or 3-wire requirements with larger insulation diameter |
| Page | This page | /uy2-connector/ | /ur2-connector/ |
Selection guide
When to choose UR
Choose UR when the project requires a red gel-filled IDC connector for supported 2-wire or 3-wire copper telephone wire splice work. UR is especially useful when buyers need a compact red connector for repair or tap splice applications and the maximum insulation outside diameter remains within 1.52 mm.
- The wire size is within 0.4-0.9 mm / 26-19 AWG.
- The maximum insulation outside diameter requirement is up to 1.52 mm.
- The splice requires two or three supported solid copper wires.
- The buyer specification, drawing, or inventory code calls for UR.
- The project requires a red connector for field repair or tap splice work.
- UR is already the model used in the existing telecom maintenance system.
Applications
Where UR connectors are used
Mintel UR connectors are used in copper telecom and qualified low-voltage wiring applications where a red gel-filled IDC splice is required for supported wire sizes.
- Copper telephone cable repair
- 2-wire or 3-wire splice work
- Tap splice and branch splice applications
- Field maintenance in copper telecom networks
- Outdoor or humid splice points inside suitable closures
- Distributor inventory for red connector demand
- Selected low-voltage alarm or sensor wiring when wire size and application match the UR specification
Related products
Related Mintel connector pages
UY2 Connector Yellow gel-filled 2-wire IDC splice connector for 0.4-0.9 mm wire and larger insulation diameter requirements. 
UR2 Connector Red gel-filled IDC splice connector for 2-wire or 3-wire requirements with maximum insulation O.D. up to 2.08 mm. 
Jelly Crimp Connectors Category page covering UY, UY2, UR, UR2, and UB2A gel-filled IDC splice connectors. 
Telephone Cable Connectors Inline, drop wire, self-stripping tap splice, modular, and jelly crimp connectors for copper telecom cable work. Factory supply
Factory-direct UR connector supply
Mintel was founded in 2012, building on family copper telecom connector manufacturing know-how since 1986. The company manufactures gel-filled IDC splice connectors and related copper wire connector products from a single factory source for telecom, distributor, OEM, and selected low-voltage buyers.
- Factory-direct communication for model selection and quotation
- Bulk supply and distributor order support
- Neutral packaging for standard orders
- OEM packaging support by project discussion
- Model comparison support across UY, UY2, UR, UR2, and UB2A
- RoHS and REACH documentation can be arranged for qualified orders
FAQ
Buyer questions
What is a UR connector?
A UR connector, also called a red button connector, is a red gel-filled IDC splice connector used to join two or three supported solid copper telephone wires without stripping the insulation.
What wire sizes does the UR connector support?
The UR connector supports 0.4-0.9 mm / 26-19 AWG solid copper wire, with a maximum insulation outside diameter of 1.52 mm.
Is the UR connector gel-filled?
Yes. The UR connector is gel-filled to help reduce moisture exposure around the splice area in suitable telecom field environments.
Is the UR connector waterproof?
The UR connector is moisture-resistant, not designed for full submersion. Final protection depends on wire fit, crimping quality, and the surrounding closure or cable system.
Can UR connect three wires?
Yes. UR is used for supported 2-wire or 3-wire splice requirements. Buyers should confirm wire size, insulation outside diameter, and installation conditions before ordering.
Is a UR connector the same as a button connector?
Button connector is a common field name for UR-style connectors because of the red button-style cap. On this page, UR connector refers to the red gel-filled IDC splice connector used for supported 2-wire or 3-wire copper telephone wire splicing.
What is the difference between UR and UR2 connectors?
UR and UR2 are both red gel-filled IDC splice connectors for 2-wire or 3-wire requirements. UR supports maximum insulation O.D. up to 1.52 mm, while UR2 supports maximum insulation O.D. up to 2.08 mm.
What is the difference between UR and UY2 connectors?
UR is a red connector for 2-wire or 3-wire repair and tap splice work. UY2 is a yellow 2-wire connector for applications that require a yellow connector format and maximum insulation O.D. up to 2.08 mm.
How do you install a UR connector?
Insert two or three supported solid copper wires fully into the connector body, then crimp the red cap with a compatible tool or suitable pliers until the connector is fully seated. No stripping or soldering is required.
Can Mintel supply UR connectors in bulk?
Yes. Mintel supports factory-direct bulk supply, distributor orders, neutral packaging, and OEM packaging discussion for qualified B2B buyers.
Can I include UR with other connector models in one inquiry?
Yes. Buyers can include UY, UY2, UR, UR2, UB2A, and related connector requirements in one inquiry. Share model names, quantities, wire specifications, packaging needs, destination country, and documentation requirements.
Connect With Ease
Send your connector requirement
Share the model, estimated quantity, wire specification, packaging preference, and destination country. Mintel can review the requirement for factory direct supply.