The LADT4 Time-Delay Auxiliary Contact Block, part of the TeSys D product line from Schneider Electric, is a versatile and reliable accessory designed to enhance the functionality of your electrical control systems. This contact block is equipped with 1 Normally Open (NO) and 1 Normally Closed (NC) contact, and it features an adjustable on-delay time range of 10 to 180 seconds. Its front-mounting design and screw terminals make installation and wiring straightforward, ensuring that your control systems operate with precision.
Key Features:
Dual Contacts: The LADT4 provides both 1 Normally Open (NO) and 1 Normally Closed (NC) contacts, offering flexibility in your control circuit design.
Adjustable On-Delay: With an adjustable on-delay time range of 10 to 180 seconds, you can fine-tune the timing for your specific application needs.
Front Mounting: The front-mounting design facilitates easy installation and maintenance, allowing for quick access and adjustments.
Screw Terminals: Screw terminals simplify the wiring process, ensuring a secure and reliable connection.
Technical Specifications:
Contact Configuration: 1NO (Normally Open) + 1NC (Normally Closed)
Delay Time Range: On-Delay, 10-180 seconds
Mounting: Front Mounting
Terminals: Screw Terminals
| Specifications | |
|
Main |
|
| Range | TeSys |
| TeSys Deca | |
| Product name | TeSys Deca |
| Product or component type | Time delay auxiliary contact block |
| Range compatibility | TeSys Deca CAD |
| TeSys Deca LC1D | |
| TeSys F LC1F | |
| TeSys F CR1F | |
| Mounting location | Front |
| Pole contact composition | 1 NO + 1 NC |
| Contacts operation | Time delay |
| Timer type | On delay |
| Time delay range | 10...180 s |
| [Ue] rated operational voltage | 690 V AC 25...400 Hz |
| [Ie] rated operational current | 6 A at 120 V AC-15 |
| 1.04 A at 690 V AC-15 | |
| 0.55 A at 125 V DC-13 | |
| 0.1 A at 600 V DC-13 | |
| [Ui] rated insulation voltage | 690 V conforming to IEC 60947-5-1 |
| 600 V conforming to UL 60947-5-1 | |
| 600 V conforming to CSA C22.2 No 60947-5-1 | |
| [Ith] conventional free air thermal current | 10 A (at 60 °C) |
| standards | EN/IEC 60947-5-1 |
| GB/T 14048.5 | |
| product certifications | IECEE CB Scheme |
| UL | |
| CSA | |
| CCC | |
| EAC | |
| UKCA | |
| Complementary | |
| Irms rated making capacity | 140 A at <= 690 V AC conforming to IEC 60947-5-1 |
| 250 A at <= 690 V DC conforming to IEC 60947-5-1 | |
| Permissible short-time rating | 100 A 60 °C 1 s |
| 120 A 60 °C 500 ms | |
| 140 A 60 °C 100 ms | |
| Protection type | GG fuse 10 A |
| Mechanical durability | 5 Mcycles |
| Minimum switching current | 5 mA |
| Minimum switching voltage | 17 V |
| Non-overlap time | 1.5 ms on de-energisation no overlap between NC and NO contact |
| 1.5 ms on energisation no overlap between NC and NO contact | |
| Insulation resistance | > 10 MOhm |
| Connections - terminals | Screw clamp terminals 1 cable(s) 1…2.5 mm²flexible with cable end |
| Screw clamp terminals 1 cable(s) 1…2.5 mm²flexible without cable end | |
| Screw clamp terminals 2 cable(s) 1…2.5 mm²flexible with cable end | |
| Screw clamp terminals 2 cable(s) 1…2.5 mm²flexible without cable end | |
| Screw clamp terminals 1 cable(s) 1…2.5 mm²rigid | |
| Screw clamp terminals 2 cable(s) 1…2.5 mm²rigid | |
| Screw clamp terminals | |
| Tightening torque | 1.7 N.m - with screwdriver flat Ø 6 mm |
| 1.7 N.m - with screwdriver Philips No 2 | |
| 1.7 N.m - with screwdriver pozidriv No 2 | |
| height | 48 mm |
| Width | 44 mm |
| Depth | 61 mm |
| Colour | Dark grey |
| Environment | |
| Environmental characteristic | Normal environment |
| IP degree of protection | IP20 conforming to IEC 60529 |
| Protective treatment | TH conforming to IEC 60068 |
| Ambient air temperature for storage | -60…80 °C |
| Ambient air temperature for operation | -40…70 °C |
| Operating altitude | 3000 m |