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Specification & Description
| Specification | Description |
|---|---|
| Part Number | LADR46 |
| Manufacturer | Schneider |
| Product Range | TeSys D control relay |
| Product or Component Type | Time delay auxiliary contact block |
| Device Application | Control circuit |
| Pole Contact Composition | 1 NO (Normally Open) + 1 NC (Normally Closed) |
| Connections - Terminals | Lugs-ring terminals |
| Mounting Location | Front |
| Rated Insulation Voltage [Ui] | 600 V UL, 690 V IEC 60947-5-1 |
| Rated Operational Voltage [Ue] | 690 V AC 25...400 Hz |
| Conventional Free Air Thermal Current [Ith] | 10 A at 140 °F (60 °C) |
| Irms Rated Making Capacity | 140 A AC, 250 A DC |
| Permissible Short-Time Rating | 100 A at 140 °F (60 °C) for 1 s, 120 A at 140 °F (60 °C) for 500 ms, 140 A at 140 °F (60 °C) for 100 ms |
| Protection Type | GG fuse 10 A |
| Associated Fuse Rating | 10 A gG 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 and energisation with no overlap between NC and NO contact |
| Timer Type | Off delay |
| Time Delay Range | 10...180 s |
| Insulation Resistance | > 10 MOhm |
| Environmental Characteristic | Normal environment |
| Standards | IEC 60947-5-1, BS 4794, EN 60947-5-1, VDE 0660, NF C 63-140 |
| Product Certifications | UL, CSA |
| IP Degree of Protection | IP2x VDE 0106 |
| Protective Treatment | TH IEC 60068 |
| Ambient Air Temperature for Operation | 23…140 °F (-5…60 °C) |
| Ambient Air Temperature for Storage | -76…176 °F (-60…80 °C) |
| Operating Altitude | Up to 9842.52 ft (3000 m) without derating |
The Schneider LADR46 is a time delay auxiliary contact block designed for use in control circuits. As part of the TeSys D range, this component is engineered to enhance the functionality of control relays by providing an off delay timing feature. It is equipped with 1 Normally Open (NO) and 1 Normally Closed (NC) contact, with connections made via lugs-ring terminals for secure and reliable wiring.
With a rated insulation voltage of 600V according to UL standards and 690V in compliance with IEC 60947-5-1, the LADR46 ensures compatibility with a wide range of operational voltages up to 690V AC at frequencies between 25 and 400 Hz. The conventional free air thermal current is rated at 10A at 60°C, and the device can handle a making capacity of 140A AC and 250A DC, with permissible short-time ratings as specified in the datasheet.
The LADR46 is designed for front mounting and offers a time delay range of 10 to 180 seconds, with a minimum switching current of 5 mA and a minimum switching voltage of 17V. The non-overlap time ensures there is no overlap between NC and NO contacts during energisation and de-energisation, maintaining a clear switching state.
Constructed to withstand normal environmental conditions, the LADR46 maintains its performance within an ambient operating temperature range of -5 to 60°C and is suitable for use at altitudes up to 3000 metres without derating. It adheres to international standards such as IEC, BS, EN, VDE, and NF C, and holds product certifications from UL and CSA. The IP2x degree of protection as per VDE 0106 and the protective treatment conforming to TH IEC 60068 ensure the durability and reliability of the component in various industrial settings.
The LADR46 is a Green Premium product, reflecting Schneider's commitment to sustainable development and compliance with environmental regulations, including the EU RoHS Directive. This component is mercury-free and comes with a clear environmental disclosure through its Product Environmental Profile.
In summary, the Schneider LADR46 auxiliary contact block is a robust and reliable component for time-delayed switching in control circuits, offering precise timing adjustments, compliance with international standards, and a focus on environmental sustainability.
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Frequently Asked Questions
What is the function of this time delay auxiliary contact block?
The time delay auxiliary contact block is designed to provide an off delay function in control circuits, allowing for a controlled delay in breaking the circuit after the power is turned off.
Can this contact block be mounted on any device?
The contact block is specifically designed for front mounting on TeSys D control relays, ensuring compatibility and ease of installation with these devices.
What are the voltage ratings for this contact block?
The contact block has a rated insulation voltage of 600 V according to UL standards and 690 V in accordance with IEC 60947-5-1. The rated operational voltage is 690 V AC at 25 to 400 Hz.
What is the thermal current rating for this component?
The conventional free air thermal current rating for the LADR46 is 10 A at 140°F (60°C).
What type of connections does this auxiliary contact block support?
It supports connections with lugs-ring terminals, providing a secure and reliable connection method for control circuits.
What is the mechanical durability of this contact block?
The mechanical durability of the contact block is rated at 5 million cycles, indicating a long operational lifespan under normal conditions.
What is the time delay range that can be set on this block?
The time delay range that can be set on this block is from 10 to 180 seconds, offering flexibility for various application requirements.
What environmental conditions is this contact block suitable for?
The contact block is suitable for normal environmental conditions, with an operating temperature range of 23 to 140°F (-5 to 60°C) and storage temperature range of -76 to 176°F (-60 to 80°C).
What certifications does this contact block hold?
The contact block is certified by UL and CSA, and it meets standards such as IEC 60947-5-1, BS 4794, EN 60947-5-1, VDE 0660, and NF C 63-140.
What is the IP degree of protection for this contact block?
The IP degree of protection for this contact block is IP2x according to VDE 0106, indicating protection against solid objects larger than 12.5 mm but not against liquids.
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