Schneider Electric TeSys D Time Delay Auxiliary Contact Block 1 NO + 1 NC Screw Clamp Terminals LADT4
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Brand : Schneider Electric
Type : Auxiliary Contact Block
Description
Schneider Electric LADT4 Time Delay Auxiliary Contact Block is a secondary set of contacts in a relay or contactor that can be used to perform a separate function, often in addition to the main switching action. It has one Normally Open (NO) and one Normally Closed (NC) contact. This means that when the relay or contactor is not activated, the NO contact is closed and the NC contact is open.
The time delay function is adjustable and can be set to delay for a period of time between 10 and 180 seconds before the contacts change state. Front likely refers to the orientation or position of the terminals on the contact block. In this case, they are on the front face of the block. Screw Clamp Terminal is the type of terminals used to make electrical connections. Screw clamp terminals are a common method for securing wires in industrial and electrical applications.
In practical terms, Schneider Electric LADT4 Time Delay Auxiliary Contact Block is used in a control circuit to provide a time delay function. It could be used to delay the activation of a device, which might be useful in scenarios where a delay is needed for safety or operational reasons.
Features
- Used in electrical control systems
- Screw clamp terminals are used
| Brand | Schneider Electric |
| Item Name | Time Delay Auxiliary Contact Block |
| Model | LADT4 |
| Color | Dark Grey |
| Conventional Free Air Thermal Current | 10 A (at 60 °C) |
| Rated Insulation Voltage | 690 V conforming to IEC 60947-5-1, 600 V conforming to UL, 600 V conforming to CSA |
| Ambient Air Temperature For Storage | -60-80 °C |
| 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 |
| Depth | 61 mm |
| Height | 48 mm |
| IP Degree Of Protection | IP20 conforming to IEC 60529 |
| 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 |
| 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 |
| Operating Altitude | 3000 m |
| Pole Contact Composition | 1 NO + 1 NC |
| Certifications | IECEE CB Scheme, UL, CSA, CCC, EAC, UKCA |
| Protective Treatment | TH Conforming to IEC 60068 |
| Range | TeSys, TeSys Deca |
| Rated Operational Voltage Limits | 690 V AC 25...400 Hz |
| 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 |
| Time Delay Range | 10...180 s |
| Width | 44 mm |
| Permissible Short-time Rating | 100 A 60 °C 1 s, 120 A 60 °C 500 ms, 140 A 60 °C 100 ms |
| Auxiliary Contacts Operation | Time Delay |
| Shielding Continuity Terminal | Without |
| Timer Type | On Delay |
| Ambient Air Temperature For Operation | -40-70 °C |
| Standards | CSA C22.2 No 60947-5-1, GB/T 14048.5, EN/IEC 60947-5-1 |
| 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 |
| Environmental Characteristic | Normal Environment |
| Insulation Resistance | > 10 MOhm |
| Mounting Location | Front |
| Range Compatibility | TeSys D CAD, TeSys D LC1D, TeSys F LC1F, TeSys F CR1F, TeSys Deca CAD, TeSys Deca LC1D |
