Timer Relays
CTD4-U200N relay - customizable timer, 4 pole
Summary
Description
Plug-in electronic railway customizable timer relay with four change-over contacts. Fully customizable according customer’s requirements concerning timing diagram and delay type. Almost any timing diagram is possible: for example time delays with delay on pull-in, on drop-out or both, symmetrical or asymmetrical flashing, 1-shot, 2-shot, 3-shot etc. or a combination of all these. Delay/pulse times are adjustable with 1 or 2 lockable knobs. The relay can also be supplied with fixed delay/pulse times (no knobs).
The relay has standard four change-over contacts which work according the timing diagram. Also 2 instantaneous change-over contacts and 2 timer change-over contacts are possible, to cover virtually all needs. Besides being activated by a voltage level, it is possible to activate the relay via a command input as well. The relay is equipped with two LEDs which indicate the presence of power supply and energizing of the coil. Also standard equipped with magnetic arc blow-out for high breaking capacity and long contact life.
The construction of the relay and choice of materials makes the CTD4-U relay suitable to withstand low and high temperatures, shock & vibrating and dry to humid environments. No external retaining clip needed as integrated ‘snap-lock’ will hold relay into socket under all circumstances and mounting directions.
Application
These relay series are designed for demanding rolling stock applications. The CTD4-U relay can be used in all railway applications where a standard or non-standard timer function is necessary.
Features
- Customized timing diagram based on customer's requirement
- Compact plug-in design
- 4 time delayed C/O or 2 time delayed C/O and 2 instantaneous C/O contacts
- Delay/pulse times adjustable with 1 or 2 lockable knobs
- Available with fixed delay/pulse times (no knobs)
- Delay/pulse times: between 0 s...∞ (no limits)
- Magnetic arc blow-out
- Two LEDs for status indication, red or green
- Integrated snap-lock, no external retaining clip needed
- Transparent cover for visual inspection
- Many options and sockets available
Benefits
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Flat, square and silver plated relay pins for excellent socket connection
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Wide range of sockets
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Integrated snap lock
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Transparent cover
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Optional positive mechanical keying relay to socket
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Flexibility by many options
Railway compliance
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EN 50155 Electronic equipment used on rolling stock for railway applications
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IEC 60571 Electronic equipment used on railway vehicles
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IEC 60077 Electrical equipment for rolling stock in railway applications
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IEC 60947 Low voltage switch gear and control gear
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IEC 61373 Rolling stock equipment - Shock and vibration test
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IEC 60947-5-4 Electromechanical components for control applications. This standard examines both coil and contact specifications in depth
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EN 50121 Electromagnetic compatibility for railway applications
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NF F 16-101/102, EN 45545-2 Fire behavior - Railway rolling stock
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NF F 62-002 On-off contact relays and fixed connections
Certifications
Available versions
| Type | Nominal voltage (VDC) | |
| CTD4-U201N | 24 | |
| CTD4-U202N | 48 | |
| CTD4-U203N | 72 | |
| CTD4-U204N | 110 | |
| CTD4-U205N | 96 | |
| CTD4-U207N | 36 | |
| Other voltages on request |