| Complementary |
| Long-time pick-up adjustment type Ir (thermal protection) | Adjustable |
| [Ir] long-time protection pick-up adjustment range | 0.7...1 x In |
| Long-time protection delay adjustment type tr | Fixed |
| [tr] long-time protection delay adjustment range | 120…400 s at 1.5 x In; 15 s at 6 x Ir |
| Neutral protection settings | 1 x Ir (4D) |
| Instantaneous protection pick-up adjustment type Ii | Fixed |
| [Ii] instantaneous protection pick-up adjustment range | 1250 A |
| Earth-leakage protection | Without |
| Contractual warranty |
| Warranty (in months) | 18 |
| Environment |
| Standards | EN/IEC 60947-2 |
| Electrical shock protection class | Class II |
| Pollution degree | 3 conforming to IEC 60947-1 |
| IP degree of protection | IP40 conforming to IEC 60529 |
| Ambient air temperature for operation | -25…70 °C |
| Ambient air temperature for storage | -50…85 °C |
| Logistical informations |
| Country of origin | PL |
| Main |
| Range | ComPacT |
| Range of product | ComPacT NSX100...250 |
| Product or component type | Trip unit |
| Trip unit name | TM-D |
| Trip unit technology | Thermal-magnetic |
| Range compatibility | ComPacT NSX160; ComPacT NSX250 |
| Device application | Distribution |
| Poles description | 4P |
| Protected poles description | 4D |
| Neutral position | Left |
| Trip unit protection functions | LI |
| Protection type | L : for overload protection (thermal); I : for short-circuit protection (magnetic) |
| Trip unit rating | 125 A at 40 °C |
| [Ue] rated operational voltage | 690 V AC 50/60 Hz |
| Network type | AC |
| Network frequency | 50/60 Hz |
| Circuit breaker mounting mode | Fixed |
| Packing Units |
| Unit Type of Package 1 | PCE |
| Number of Units in Package 1 | 1 |
| Package 1 Height | 6.500 cm |
| Package 1 Width | 9.500 cm |
| Package 1 Length | 15.000 cm |
| Package 1 Weight | 509.400 g |
| Unit Type of Package 2 | S03 |
| Number of Units in Package 2 | 23 |
| Package 2 Height | 30.000 cm |
| Package 2 Width | 30.000 cm |
| Package 2 Length | 40.000 cm |
| Package 2 Weight | 12.116 kg |
This TM125D is a 4d thermal-magnetic trip device used on ComPacT NSX 160/250 circuit breakers. This 125A rated thermal-magnetic trip device is the optimal choice for all distribution applications. It features adjustable thermal overload protection and fixed magnetic protection against short circuits. This product is part of our EcoStruxure Power architecture when combined with the PowerTag NSX and ComPacT NSX basic switch.