Lock.

The in an insertion (87) of the lock housing (7) seated profile cylinder (38) is led by a hanger bracket (93) and a locking pin (121) fixed centered on the hanger bracket (93). The locking pin (121) is displaceably guided on a carriage (103) and is supported by a spring (131) biased to the profile cylinder (38) towards. The profile cylinder (38) includes a reading device for an electronic key that is connected via a plug connection (89) with an electronic circuit of the lock. The connector (89) and the locking pin (121) are coordinated so that the locking pin (121) is first fixed to the profile cylinder (38) on the bearing block (93), before the relative to the bearing block (93) centered guided carriage (103 ) the plug connection (89) closes. In this way, misalignment of the plug connection (89) and damage to the contact elements (107, 109) are avoided.