Contact Arrangement: Various Refer overleaf
Nominal Rated Voltage: 12V, 24V & 50V dc
Typical Operate Time 150 ms
Typical Release Time 20 ms
Approximate Weight: 1.14kg
Note: Refer to the following data sheets:
•• 7-1-1 for general information and contact
ratings.
•• 7-2-1 for dimensions.
•• 8.2 for tools.
•• 8.3 for plugboard and connector details.
Refer overleaf for specific data.
General data

Designed primarily for use in railway signalling circuits, but can be used in other applications requiring a reliable
safety relay. Typical applications include repeater, control and indication functions. The style QN1 forms the basis
of the ‘Q’ range of relays.
The variations of this relay style are listed overleaf. Where a relay corresponds exactly to a type listed in a BR Spec.,
the Spec. No. is shown in the remarks column.
Description