2071566-2

## **SCHRACK ACCESSORIES MINIATURE RELAY PT** 

GENERAL PURPOSE RELAYS ACCESSORIES 

## **INTRODUCTION** 

This socket is a universal product and can be used with TE PT relays. This series includes a basic range of DIN and PCB types. Optional clips provide a more secure connection of the relay to the socket. For extensive PT relay accessories click here 

## FEATURES 

## APPLICATION 

- Easy replacement of relays on a densely packed DIN rail 

- Safety protection against physical contact 

- Metal clips can be installed to make the installation more stable 

- Total height of socket-relay package is 60mm 

Electrical control cabinet, Power Conversion System (PCS),Machine tool, Automatic production line 

## APPROVALS 

   - CE and cULus E233439 for DIN Rail sockets 

- High quality rising clamp terminals 

- Captive combination terminal screws 

**SCHRACK ACCESSORIES MINIATURE RELAY PT** GENERAL PURPOSE RELAYS ACCESSORIES 

## **PT DIN-rail socket with screw type terminals** 

**PT78C4P, PT78A4P** 

INDUSTRIAL / **ACCESSORIES FOR MINIATURE RELAY PT** 

2 

**SCHRACK ACCESSORIES MINIATURE RELAY PT** GENERAL PURPOSE RELAYS ACCESSORIES 

## **PT DIN-rail socket with screw type terminals** 

**PT78C2P, PT78A2P** 

INDUSTRIAL / **ACCESSORIES FOR MINIATURE RELAY PT** 

3 

**SCHRACK ACCESSORIES MINIATURE RELAY PT** 

GENERAL PURPOSE RELAYS ACCESSORIES 

## **PT DIN-rail socket with screw type terminals** 

## **PT78C4P, PT78A4P, PT78C2P, PT78A2P** 

## **Technical data 2-pole         4-pole** 

|**Technical data**<br>**2-pole         4-pole**|**2-pole         4-pole**|
|---|---|
|Rated voltage/ Max.<br>switching voltage|2 form C (CO)        4 form C (CO)|
|Rated current|10A                      6A|
|Limiting continuous current|see derating curve|
|Dielectric strength<br>(initial value)<br>Open contact circuit 1 min<br>Coil-contacts  1 min<br>Adjacent contacts  1 min|1,200Vac           1,200Vac<br>2,500Vac         2,500Vac<br>2,500Vac         2,000Vac|
|Clearance / creepage<br>Coil-contact circuit<br>Adjacent contact circuits|≥3/4mm≥3/4mm<br>≥3/4mm≥1.5/2.2mm|
|Material group of<br>insulation parts|IIIa|
|Flammability class UL 94|V2|
|Insulation to IEC 60664-1<br>Type of insulation<br>Coil contact circuit<br>Open contact circuit<br>Adjacent contact circuits|Basic<br>Functional<br>Basic|



1) with inserted relay pollution degree 1 in region of contact pin/socket inlets 

## **Derating curve according to UL508** 

The derating curve was defined and measured by PT socket and PT relay together. 

## **Technical data** (continued) 

|**Technical data**(continued)|(continued)|
|---|---|
|Rated insulation voltage<br>Pollution degree<br>Rated voltage system|250V<br>21)<br>230/400V|
|Ambient temperature range|-40…+65˚C|
|Terminals|screw|
|Terminal screw torque<br>acc. IEC61984|0.5Nm (typical)<br>0.7Nm(max)|
|Terminal Screw size|M3|
|Wire strip length|8mm|
|Wire cross section<br>single wire<br>fine wire|1.5 mm2<br>1.5 mm2|
|Insertion cycles|A (10)|
|Max. Insertion Force|130N|
|Max pull out force|130N|
|Mounting direction|Any direction with clip|
|Material compliance: EU RoHS/ELV, China<br>RoHS, REACH, Halogen content refer to the<br>Product Compliance Support Center at<br>www.te.com/customersupport/rohssupportcenter||



www.te.com/customersupport/rohssupportcenter 

## **Derating curve according to IEC61984** 

The derating curve was defined and measured by PT socket and PT relay together. 

INDUSTRIAL / **ACCESSORIES FOR MINIATURE RELAY PT** 

4 

**SCHRACK ACCESSORIES MINIATURE RELAY PT** GENERAL PURPOSE RELAYS ACCESSORIES 

## **PT28D00** 

## **PT28D01** 

## **PT sockets** 

|**PT sockets**|||
|---|---|---|
|Type|Description|Part Number|
|PT78C4P|DIN-rail socket with screw type terminals 4 pole,  with safety protection|2071566-1|
|PT78A4P|DIN-rail socket with screw type terminals 4 pole|2071566-2|
|PT78C2P|DIN-rail socket with screw type terminals 2 pole, with saftey protection|2071566-3|
|PT78A2P|DIN-rail socket with screw type terminals 2 pole|2071566-4|



## **Accessories for** 

|**Accessories for**|||
|---|---|---|
|Type|Description|Part Number|
|PT28D00|Metal retaining clip for DIN rail socket, 28 mm height relay|2071566-7|
|PT28D01|Metal retaining clip for DIN rail socket, 36 mm height relay|2071566-9|



INDUSTRIAL / **ACCESSORIES FOR MINIATURE RELAY PT** 

5 

**SCHRACK ACCESSORIES MINIATURE RELAY PT** GENERAL PURPOSE RELAYS ACCESSORIES 

## **PT PCB socket** 

## **PT78C02,PT78C04** 

INDUSTRIAL / **ACCESSORIES FOR MINIATURE RELAY PT** 

6 

**SCHRACK ACCESSORIES MINIATURE RELAY PT** GENERAL PURPOSE RELAYS ACCESSORIES 

## **PT PCB socket** 

## **PT78C02,PT78C04** 

|**Technical data**<br>**2-pole         4-pole**<br>**PT PCB socket**<br>**PT78C02,PT78C04**|**2-pole         4-pole**|
|---|---|
|Rated voltage/ Max.<br>switching voltage|2 form C (CO)        4 form C (CO)|
|Rated current|8A                      6A|
|Limiting continuous current|see derating curve|
|Dielectric strength<br>(initial value)<br>Open contact circuit 1 min<br>Coil-contacts  1 min<br>Adjacent contacts  1 min|1,200Vac           1,200Vac<br>2,500Vac         2,500Vac<br>2,500Vac         2,000Vac|
|Clearance / creepage<br>Coil-contact circuit<br>Adjacent contact circuits|≥3/4mm≥3/4mm<br>≥3/4mm≥1.5/2.2mm|
|Material group of<br>insulation parts|IIIa|
|Flammability class UL 94|V2|
|Insulation to IEC 60664-1<br>Type of insulation<br>Coil contact circuit<br>Open contact circuit<br>Adjacent contact circuits<br>Rated insulation voltage<br>Pollution degree<br>Rated voltage system|Basic                  Basic<br>Functional          Functional<br>Basic              Functional<br>250V                   250V<br>2                         2<br>230/400V         230/400V|
|Material compliance: EU RoHS/ELV, China<br>RoHS, REACH, Halogen content refer to the<br>Product Compliance Support Center at<br>www.te.com/customersupport/rohssupportcenter||



## **Technical data** (Continued) **2-pole         4-pole** 

|Ambient temperature range|-40…+70˚C|
|---|---|
|Terminals|PCB terminals|
|Insertion cycles|A (10)|
|Resistance against<br>solder heat|270°C/ 10s|
|Max. Insertion Force|130N|
|Max pull out force|130N|
|Mounting direction|Any direction with clip|
|Mounting distance|≥5mm|
|Weight|6g                     7g|



## **Derating curve according to IEC61984** 

Material compliance: EU RoHS/ELV, China RoHS, REACH, Halogen content refer to the Product Compliance Support Center at 

www.te.com/customersupport/rohssupportcenter 

The derating curve was defined and measured by PT socket and PT relay together. 

INDUSTRIAL / **ACCESSORIES FOR MINIATURE RELAY PT** 

7 

**SCHRACK ACCESSORIES MINIATURE RELAY PT** 

GENERAL PURPOSE RELAYS ACCESSORIES 

## **Footprint** 

## **2P PCB socket footprint** 

## **4P PCB socket footprint** 

## **PT28P00** 

## **PT sockets** 

|**PT sockets**|||
|---|---|---|
|Type|Description|Part Number|
|PT78C04|Socket with PCB terminals, 4 pole|2071566-5|
|PT78C02|Socket with PCB terminals, 2 pole|2071566-6|



## **Accessories for** 

|**Accessories for**|||
|---|---|---|
|Type|Description|Part Number|
|PT28P00|Metal retaining clip for PCB socket, relay height 28mm|2071566-8|



INDUSTRIAL / **ACCESSORIES FOR MINIATURE RELAY PT** 

8 

## **Combination of relay and socket, insulation requirements and thermal characteristics** 

The relay standard IEC 61810-1 has an important impact on the combination of a relay and the respective socket. The relay sockets have to comply with the requirements of IEC 61984 and the insulation requirements of the IEC 61810-1. Even if the socket alone fullfills or exceeds the insulation requirements as clearance/creepage for the relay, the combination of a relay with a socket may reduce the creepage and lead to a lower rated insulation voltage. Hence restrictions for the combination relay-socket may be the consequence, e.g. a reduction of the voltage range or of the pollution degree. Especially for miniature multi-pole relay and respective sockets with small distance between the contact circuits, these restrictions have a big impact. 

Apart from the insulation properties, the thermal characteristics of the combination relay and socket are of utmost importance (see > ‘Derating curves’). Especially the operations conditions like multiple heat up and cool down cycles could have significant impact on the long-term stability of the contact resistance of the combination contact tulip and terminal, and may thereby cause risk of overheating and fire hazard. It is strongly recommended that such conditions are considered in the design and usage of the device and that the devices are thoroughly tested under real conditions. 

As sockets from different sources are not directly comparable, the compliance with the technical specification can only be informed for an approved combination relay-socket. As design details and characteristics for non TE products are beyond our control, confirmations for technical parameters and characteristics regarding such combinations is not possible. Risks as reduced dielectric strenght, fire hazard, etc. due to use based on unclear or omitted data, limitations or restrictions must not be underestimated. 

NOTE: We only confirm the characteristics and parameters for the approved combinations of relays and sockets as indicated in the catalog and datasheets. 

## **Important Notes:** 

1. Datasheets and product specification according to IEC 61810-1 and to be used only together with the ‘Definitions’ section. 

2. Datasheets and product data is subject to the terms of the disclaimer and all chapters of the ‘Definitions’ section, available at http://relays.te.com/definitions. 

3. Datasheets, product data, ‘Definitions’ section, application notes and all specifications are subject to change 

## **te.com** 

©2022 TE Connectivity. All Rights Reserved. 

TE Connectivity, TE Connectivity (logo) and Every Connection Counts are trademarks. All other logos, products and/or company names referred to herein might be trademarks of their respective owners. 

The information given herein, including drawings, illustrations and schematics which are intended for illustration purposes only, is believed to be reliable. However, TE Connectivity makes no warranties as to its accuracy or completeness and disclaims any liability in connection with its use. TE Connectivity‘s obligations shall only be as set forth in TE Connectivity‘s Standard Terms and Conditions of Sale for this product and in no case will 

TE Connectivity be liable for any incidental, indirect or consequential damages arising out of the sale, resale, use or misuse of the product. Users of TE Connectivity products should make their own evaluation to determine the suitability of each such product for the specific application. 

01/23 

INDUSTRIAL / **SCHRACK ACCESSORIES MINIATURE RELAY PT**