An electromagnetic relay, comprising: - an electromagnetic system with a coil and a core aligned in a longitudinal direction and having ends that define a first and a second end of the relay at each of which pole pieces (3, 4) extend transversely thereto, which pole pieces are connected to a pole assembly (7, 8, 9, 11) that includes a permanent magnet and extends in parallel to the coil and the core along a first side of the relay that is opposite to a second side of the relay with respect to the coil and the core; - an armature arranged on the first side of the relay, which has two legs (12a, 12b) and is pivotally mounted relative to the pole assembly (7, 8, 9, 11); - a second switch usable as a load switch, which is arranged on the second side of the relay close to the second end of the relay and comprises at least one fixed contact and one movable contact attached to a contact spring, which is actuated by the armature through an electrically insulating coupling member; - switch signal terminals (15, 16) which are arranged on the second side of the relay close to the first end of the relay and connected to the coil; and - power terminals (35, 36) which are arranged on the second side of the relay close to the second end of the relay and connected to the load switch; and - a housing for accommodating the electromagnetic system, the armature, and the switches (20, 30); characterised by - a first switch usable as a diagnostic switch, which is arranged on the first side of the relay close to the first end of the relay and comprises at least one fixed contact and one movable contact that is attached to a contact spring actuated by the armature and connected to test power terminals (25, 26) extending from the second side of the relay to the first side of the relay. - an electromagnetic system with a coil and a core aligned in a longitudinal direction and having ends that define a first and a second end of the relay at each of which pole pieces (3, 4) extend transversely thereto, which pole pieces are connected to a pole assembly (7, 8, 9, 11) that includes a permanent magnet and extends in parallel to the coil and the core along a first side of the relay that is opposite to a second side of the relay with respect to the coil and the core; - an armature arranged on the first side of the relay, which has two legs (12a, 12b) and is pivotally mounted relative to the pole assembly (7, 8, 9, 11); - a second switch usable as a load switch, which is arranged on the second side of the relay close to the second end of the relay and comprises at least one fixed contact and one movable contact attached to a contact spring, which is actuated by the armature through an electrically insulating coupling member; - switch signal terminals (15, 16) which are arranged on the second side of the relay close to the first end of the relay and connected to the coil; and - power terminals (35, 36) which are arranged on the second side of the relay close to the second end of the relay and connected to the load switch; and - a housing for accommodating the electromagnetic system, the armature, and the switches (20, 30); - a first switch usable as a diagnostic switch, which is arranged on the first side of the relay close to the first end of the relay and comprises at least one fixed contact and one movable contact that is attached to a contact spring actuated by the armature and connected to test power terminals (25, 26) extending from the second side of the relay to the first side of the relay.