• memory (impulse) switches, controlled by buttons for light switching from more places, are a practical replacement for three-way switches (No.6) and cross-bar switches (No.7)
  

• thanks to control by buttons (unlimited number, connected in parallel by 2 wires), installation gets more transparent and faster for mounting
  

• relay MR-41/42 remembers its state after re-energization in a way that it is always switched off, after energization it automatically returns into its state before de-energization
  

• MR-41
  

- output contact: 1x changeover 16 A

• MR-42
  

- options - 2x parallel contacts or the other relay is latching
- function selected via external jumper between B1 - B2
- output contact: 2x changeover 16 A

• supply voltage AC 230 V or AC/DC 12-240 V
  

• 1-MODULE, DIN rail mounting