Power Relays Test - Normally-open Type B

Normally-open type B:

Check for continuity between the terminals.

• There should be continuity between the No. 1 and No. 3 terminals when power and ground are connected to the No. 2 and No. 4 terminals.
  
• There should be no continuity between the No. 1 and No. 3 terminals when power is disconnected.