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SF4-DC48V - POLARISED / MONOSTABLE SAFETY RELAY with (mechanical linked) forced contacts operation

Download the SF4-DC48V datasheet PDF. This datasheet also covers the SF4 variant, as both devices belong to the same polarised / monostable safety relay with (mechanical linked) forced contacts operation family and are provided as variant models within a single manufacturer datasheet.

Key Features

  • Forced operation contacts (2 Form A 2 Form B, 3 Form A 1 Form B) N. O. and N. C. side contacts are connected through a card so that one interacts with the other in movement. In case of a contact welding, the other keeps a min. 0.5mm .020inch contact gap.
  • Independent operation contacts (4 Form A 4 Form B) Each pair of contacts is free from the main armature and is independent from each other. So if a N. O. pair of contacts are welded, the other 3 N. O. contacts are not effected (o.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (SF4-DC48.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number SF4-DC48V
Manufacturer Matsushita Electric Works(Nais)
File Size 338.30 KB
Description POLARISED / MONOSTABLE SAFETY RELAY with (mechanical linked) forced contacts operation
Datasheet download datasheet SF4-DC48V Datasheet

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Other Datasheets by Matsushita Electric Works(Nais)

Part Number Description
SF4-DC5V POLARISED / MONOSTABLE SAFETY RELAY with (mechanical linked) forced contacts operation
SF4-DC60V POLARISED / MONOSTABLE SAFETY RELAY with (mechanical linked) forced contacts operation
SF4-DC9V POLARISED / MONOSTABLE SAFETY RELAY with (mechanical linked) forced contacts operation

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
SF POLARISED, MONOSTABLE SAFETY RELAY with (mechanical linked) forced contacts operation π 53.3±0.3 2.098±.012 25.0 .984 16.5±0.3 .650±.012 (SF3 pending) (SF3 pending) (SF3 pending) SF-RELAYS enables to plan a circuit to detect welding or go back to the beginning condition. • Separated chamber structure (2 Form A 2 Form B, 3 Form A 1 Form B, 4 Form A 4 Form B) N.O. and N.C. side contacts are put in each own space surrounded with a card and a body-separater. That prevents short circuit between contacts, which is caused by their springs welding or damaged. • UL/CSA, TÜV, SEV approved (UL/CSA, SEV of SF3 pending) FEATURES • Forced operation contacts (2 Form A 2 Form B, 3 Form A 1 Form B) N.O. and N.C.