Monitoring Relays for Generators and ATS Systems
How phase-sequence, voltage/frequency and temperature monitoring relays let an ATS safely transfer a load onto a standby generator and back.
The TPSAUX72 is a Schneider Electric TransferPacT auxiliary contact module for the frame 800-1600 A TA1A switch, clipping on at a side angle and signalling the off position through a 2 NO + 2 NC contact set wired on spring terminals, rated for a 100 mA minimum load at 24 V DC.
The TPSAUX72 is the TA1A-frame counterpart of the TPSAUX44, giving the off-position signal on the 800-1600 A frame where the TPSAUX44 covers the smaller 250/630 A frames.
| Range of product | TransferPacT |
|---|---|
| Product or component type | Auxiliary Contact Module |
| Device application | Signalling |
| Auxiliary contact composition | 2 NO + 2 NC |
|---|---|
| Signalling function | Switch position (off) |
| Auxiliary connection terminal | Spring 0.5…1.5 mm² (20 AWG...16 AWG) |
| Mounting mode | Clip-on |
| [Ith] conventional free air thermal current | 5 A |
| Minimum load | 100 mA at 24 V DC |
| Tightening torque | 0.6 N.m +/- 0.1 N.m |
| Product compatibility | TA1A |
| Accessory / separate part category | Signalling accessory |
| Warranty (in months) | 18 |
|---|
| Part number | TPSAUX72 |
|---|---|
| Brand | Schneider Electric |
| Condition | New, factory sealed |
| Source | Schneider Electric and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| Unit Type of Package 1 | PCE |
|---|---|
| Number of Units in Package 1 | 1 |
| Package 1 Height | 4.700 cm |
| Package 1 Width | 10.000 cm |
| Package 1 Length | 16.000 cm |
| Package 1 Weight | 194.000 g |
| Unit Type of Package 2 | S02 |
| Number of Units in Package 2 | 10 |
| Package 2 Height | 15.000 cm |
| Package 2 Width | 30.000 cm |
| Package 2 Length | 40.000 cm |
| Package 2 Weight | 2.458 kg |
| Shipping weight | 0.194 kg |
| Ships from | Türkiye |
| Dispatch | — |
| Stock | On request |
Source: manufacturer data · Last verified: 30 Oct 2026
The tariff (HS) code on file for TPSAUX72 is 853890.
TPSAUX72 ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival.
How phase-sequence, voltage/frequency and temperature monitoring relays let an ATS safely transfer a load onto a standby generator and back.