The D-B-series is the high current breaking versions of the D-series relays from RMS Mors Smitt. These are rugged plug-in relays that provide extreme reliability within long endurance applications and harsh environments.

At a glance

• Originally designed for the rail industry so are tough and dependable
• Instantaneous compact plug-in relay with 4 change-over contacts
• The D-B series are for high DC breaking with magnetic blowouts, so ideal for utility applications switching of up to 220 Vdc (up to 7 A at 110 Vdc). 
• No external retaining clip needed as integrated ‘snap-lock’ will hold relay into socket under all circumstances and mounting directions
• Easy and flexible solution due to compact design, choice of options and wide range of sockets

Quick guide to popular products:

• D-series = standard capacity 4 change-over contacts
• D-B-series = high current 4 change-over contacts
• D8-series = 8 change-over contacts
• BD-series = latching (bistable) relays. 3 change-over, 1 x normal closed contact
• BD-B-series = Above with magnetic blowout option selected
• KDN-series = mechanical latching (bistable relays), 8 change-over contacts