Documentation
Datasheet BD-U200N v1

Technical drawings
Drawings BD-U200N relay

Latching relays

BD-U200N relay - Latching, plug-in 4 pole

Summary

Description

Plug-in bistable railway relay with 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 @ 110 VDC. The contacts remain in the last powered position. Bistable by means of a permanent magnet.

The built-in magnetic arc blow-out ensures adequate DC breaking capacity, resulting in long contact life. The integrated contact separation prevents cross pollution of contacts. On the relay cover, the serial number and data matrix code are shown for ease of traceability.

The construction of the relay and choice of materials make the BD-U200N relay suitable to withstand corrosive atmospheres, 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 orientations.

Compact design, choice of many options and a wide range of sockets makes the BD-U200N relay an easy and flexible solution to use.

Application

These relays are designed for demanding rolling stock applications. The BD-U200N is used in applications where the contacts are set and reset with permanent power or impulses.

Features

Latching (bistable) relay
Compact plug-in design
2 combined coils
3 C/O contacts and 1 N/C contact
Magnetic arc blow-out
Flat, square silver plated relay pins for excellent socket connection
Wide range of sockets
Integrated snap lock
Transparent cover
High DC breaking capacity
Optional positive mechanical keying relay to socket
Flexibility by many options

Benefits

Latching (bistable) relay
Compact plug-in design
2 combined coils
3 C/O contacts and 1 N/C contact (or 3 C/O + 1 N/O)
Magnetic arc blowout ensuring long contact life
Minimum switching current, 1 mA
Maximum continuous current 10 A
Wide temperature range -40 ⁰C...+70 ⁰C
Mechanical life > 10 million operations
Electrical life eg > 10 million operations at 0.5 A, 24 VDC
Data matrix 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 Electronic equipment used on rolling stock for railway applications
IEC 60571 Electronic equipment used on railway vehicles
IEC 60077 Electrical equipment for rolling stock in railway applications
IEC 60947 Low voltage switch gear and control gear
IEC 61373 Rolling stock equipment - Shock and vibration test
EN 50121 Electromagnetic compatibility for railway applications
NF F16-101/102, TS 45545-2 Fire behavior - Railway rolling stock
IEC 60529 European standard describes the protection class (IP code)
NF F 16 -101/102 On-off contact relays and fixed connections

Certifications

Available versions

Type	Nominal voltage (VDC)
BD-U201N	24
BD-U202N	48
BD-U203N	72
BD-U204N	110
BD-U205N	96
BD-U206N	12
BD-U207N	36
Other voltages on request