LADR0 - Telemecanique Time Delay Block

LADR0 - Telemecanique Time Delay Block

The Schneider Electric LADR0 Time Delay Block is a high-quality off‑delay auxiliary contact block engineered to work seamlessly with TeSys Deca LC1D/LC1F contactors and CAD control relays. Built to deliver dependable performance, this compact timer is ideal for situations where precise power-down is required after equipment deactivation—whether in industrial automation, HVAC systems, or motor control panels. With an adjustable delay from 0.3 to 3 seconds, the LADR0 enhances safety, protects machinery from stress upon shutdown, and minimizes unplanned downtime—ideal for system integrators and maintenance teams seeking smooth, reliable operations.

Key Features and Benefits

• Flexible time delay: Easily fine‑tune the off‑delay from 0.3 to 3 seconds to match your specific control needs.
• 1NO + 1NC mechanically linked contacts: Offers both normally open and normally closed control in one unit—ideal for fail-safe configurations.
• Tool‑free clip‑on mounting: Snaps directly to TeSys LC1D/LC1F contactors or CAD relays—no tools required—saving time during installation.
• Long-lasting durability: Designed to handle millions of mechanical and electrical cycles, delivering strong ROI and reliable uptime.

Technical Specifications

• Function: Off-delay timer (0.3 – 3 s)
• Contact Configuration: 1 Normally Open + 1 Normally Closed
• Rated Operational Voltage (Ue): 690 V AC (25–400 Hz)
• Rated Insulation (Ui): 690 V IEC
• Impulse Withstand Voltage: 6 kV
• Thermal Current (Ith): 10 A @ 60 °C
• Control Ratings:
  • AC-15: 6 A @ 120 V / 1.04 A @ 690 V
  • DC-13: 0.55 A @ 125 V / 0.1 A @ 600 V
• Minimum Switching Capacity: 17 V / 5 mA

Material Compliance and Certifications

• IP20 enclosure (IEC 60529): Protects against solid objects.
• Operating temperature range: –40 to +70 °C (–40 to +158 °F) for extreme environments.
• Terminal type: Screw clamp accepts 1–2.5 mm² flexible or solid wire.

Suitability

• The LADR0 is ideal for industrial motor control, conveyor systems, compressors, and HVAC applications that require a controlled shutdown sequence. When power is cut, the adjustable delay ensures fans, solenoids, or motors run just long enough to complete safe shutdown cycles—protecting gear and reducing mechanical wear. Integrators appreciate its tool-free mounting and rugged design, which make the LADR0 a reliable, space-saving solution in control cabinets and panel boards.