WDB4-U200N One-shot Timer Relay with ON Delay

Description

Plug-in electronic railway one-shot timer relay with time delay on pull-in, three change-over contacts and one normally-closed contact for reliable switching of very low currents (1 mA @5 VDC) up to currents of 10A @ 110VDC.

Application

The WDB4-U200N is used in applications where one pulse at output is necessary after activating the relay (with or without time delay).  

Features

• Auxiliary power supply necessary
• Compact plug-in design
• 3 C/O contacts and 1 N/C contact
• Both delay-on time and pulse time are independently adjustable with 2 lockable knobs
• Also, available with 1 or 2 fixed times (1 knob or none)
• Total time delay range: 0 s...120 min
• Magnetic arc blow-out ensuring long contact life
• Two LEDs for status indication, red or green
• Integrated back EMF suppression diode
• Minimum switching current, 1 mA
• Maximum continuous current 10 A
• Wide temperature range  -40 ⁰C...+70 ⁰C
• Mechanical life > 30 million operations
• Electrical life e.g. > 10 million operations at 0.5 A, 24 VDC
• Data matrix code with serial number for traceability
• Integrated snap lock, no external retaining clip needed
• Transparent cover for visual inspection
• Many options and sockets available

Railway compliance

• EN 50155 : 2017 Railway applications - Rolling stock - Electronic equipment
• IEC 60571: 2012 Railway applications - Electronic equipment used on rolling stock
• IEC 60947-5-1: 2016 / IEC 60947-5-4: 2012 Low-voltage switch gear and control gear
• IEC 61373: 2010 Railway applications - Rolling stock equipment - Shock and vibration tests
• EN 50121-3-2: 2016 Railway applications - Electromagnetic compatibility
• NF F16-101/102 Railway rolling stock - Fire behavior
• EN 45545-2: 2020 Railway applications - Fire protection on railway vehicles
  Part 2: Requirements for fire behavior of materials and components

Certifications

Available versions