PRG High-Temperature Circular Connectors, up to +400 °C
Up to +400 °C · 2 to 47 contacts · shielded or unshielded
GRT High-Temperature Connectors, up to +500 °C
−55 to +500 °C · stainless steel · hermetic receptacles
GRT connectors are stainless-steel threaded circular connectors for the hottest zones — engines, exhausts, furnaces and test rigs — rated from −55 to +500 °C depending on the model. Receptacles use glass insulators, and hermetic versions are leak-tested at 0.1 MPa. GRT is built to order: interface and mounting are designed to your requirements.
- Temperature
- −55 to +500 °C
- Contacts
- 2 to 5
- Current rating
- 7.5–13 A
- Shell
- Stainless steel
- Sealing
- Hermetic receptacles
Key features
- Rated to +500 °C (model dependent: 500, 350 or 300 °C)
- Stainless-steel shells with threaded coupling
- Glass-insulated receptacles; hermetic versions leak ≤ 4.55 × 10⁻³ cm³/s at 0.1 MPa
- Many interfaces and mounting dimensions
- Custom-designed to your requirements
Specifications
| Parameter | Value | Condition |
|---|---|---|
| Dielectric withstanding voltage | 1500 V | Room temperature |
| Insulation resistance | ≥ 1000 MΩ / ≥ 20 MΩ | Room temperature / high temperature and humidity |
| Parameter | Value | Condition |
|---|---|---|
| Operating temperature | −55 to +500 °C | Model dependent — see models table |
| Hermeticity | ≤ 4.55 × 10⁻³ cm³/s | 0.1 MPa, hermetic receptacles |
| Durability | 500 mating cycles | |
| Coupling thread | e.g. M20 × 1.5 | GRT16 |
Values not listed above — for example vibration level, leak rate or other environmental tests — can be tested to your requirements, including third-party testing. Specifications are subject to change; contact us for the current datasheet.
Models
| Plug / hermetic receptacle | Temperature | Contacts | Current | Contact resistance |
|---|---|---|---|---|
| GRT10-5KT / GRT10-5JZ | −55 to +500 °C | 5 × Ø 1.0 | 7.5 A | 0.125 Ω |
| GRT11-4KTR2 / GRT11-4JZR2 | −55 to +500 °C | 4 × Ø 1.6 | 13 A | 0.075 Ω |
| GRT12-4KT / GRT12-4JZ | −55 to +500 °C | 4 × Ø 1.6 | 13 A | 0.075 Ω |
| GRT14-05KT / GRT14-05JZ | −55 to +500 °C | 2 × Ø 1.0 | 7.5 A | 0.125 Ω |
| GRT16-2KT / GRT16-2JZ | −55 to +350 °C | 2 × Ø 1.5 | 10 A | 0.017 Ω |
| GRT12-2KT / GRT12-2JZ | −55 to +300 °C | 2 × Ø 1.0 | 7.5 A | 0.125 Ω |
Contact resistance values as published for high-temperature contacts. Other layouts are designed to order.
How to order
GRT [shell] - [contacts] [contact] [type]
Example: GRT16-2KT — Shell 16, 2 contacts, socket contacts, plug
| Code segment | Options |
|---|---|
| Shell | |
| Contacts | |
| Contact | |
| Type |
GRT14 key positions N, A–D.
Contact counts and terminations
Standard contact counts
- 2
- 4
- 5
Terminations
- Solder / weld
Typical applications
- Engine and exhaust sensors
- Industrial furnaces and kilns
- Turbine and combustion test rigs
- High-temperature process instrumentation
Frequently asked questions
How hot can GRT connectors run?
Up to +500 °C for the GRT10, 11, 12 and 14 models; GRT16 is rated to +350 °C and GRT12-2 to +300 °C.
Can GRT be made to my interface?
Yes. GRT is a custom product: we design the interface, mounting and contact layout to your requirements.
Selection guides
From sample to production
Send your requirement
Part number, drawing, pin-out or a short description of your application.
Configuration and quote
Our engineers match the configuration and reply with a drawing and quotation.
Samples
Samples are made to your order. Third-party testing to your specification is available on request.
Your approval
You test the samples in your own equipment and approve them.
Series production
Production follows the approved sample configuration.
Need a quote or a drawing?
Send your part number, pin-out or drawing. An engineer will reply by email.
Related series
PPH25M Thermocouple Connectors with Compensating Contacts
Chromel / alumel contacts · 4 to 47 contacts · −60 to +200 °C