For holding 1, 2 or 3 Keystone modules with 40° slanted outlet. Frame set with cover 80x80mm and central plate 50x50mm according to DIN49075 compatibel to common switch programms with adapter plate, not for ET-25089. With dust covers and labeling fields. Delivery without modules. ET-25089 only useable for E-20091 and E-20095