Danfoss AK-PC 551 pack controller for refrigeration racks with two suction groups and a common condenser. Sequences up to eight compressors with Step / Speed / PWM capacity control and controls the condenser fans, with floating condenser pressure, heat recovery and night setback. Built-in front LCD display. 110-230 V AC supply, Modbus communication, DIN-rail mount. EAN 5702428843041.
| Type | AK-PC 551 pack controller |
| Function | 2 Suction and common Condenser |
| Supply voltage | 110-230 V AC |
| Frequency | 50/60 Hz |
| Power consumption | 10 W |
| Compressor capacity mode | Step / Speed / PWM |
| Number of compressors (max) | 8 pc |
| Digital inputs (DI) | 8 pc |
| Digital outputs (DO) | 8 pc |
| Analog inputs (AI) | 8 pc |
| Analog outputs (AO) | 2 pc |
| Communication | Modbus |
| Display | Built-in front LCD (option: MMIGRS2 remote) |
| Mounting | DIN rail |
| Battery | Lithium coin cell CR1620 |
| Approvals | CE, CMIM, EAC, cURus, UL |
| Danfoss code | 080G0281 |
| EAN | 5702428843041 |
| Net weight | 510 Gram |
| Product group | Compressor/condenser control |
| 1 Primary battery SUM weight Kg | 0.001 |
| 1 Primary battery weight Kg | 0.001 |
| Analog inputs (AI) [pc] | 8 pc |
| Analog outputs (AO) [pc] | 2 pc |
| Application area | Capacity control |
| Approval | CE |
| Battery qty | 1 |
| Battery type or Name | Lithium coin cell (CR1620) |
| Capacity control input | Pressure/ Temperature |
| Capacity control mode | PI |
| CE mark | Yes |
| China RoHS compliance | Out of scope |
| Communication type | MODBUS |
| Condenser control type | Pressure/ Temperature |
| Digital inputs (DI) [pc] | 8 pc |
| Digital outputs (DO) [pc] | 8 pc |
| Display - option | On front |
| Option | MMIGRS2 |
| Display on front | Yes |
| Division | 25 |
| Equipment | Incl. Connectors |
| EU RoHS compliance | Out of scope |
| Fan capacity control | Step/ Speed |
| Fan control mode | PI |
| Frequency [Hz] | 50/60 Hz |
| Further information | Relays 5,6 solid state type |
| Mounting method | DIN rail |
| Other RoHS documentation | EAEU RoHS |
| PFAS content [Yes/No] | No |
| Power consumption [W] | 10 W |
| Product features | Buzzer |
| Product Language | Croatian |
| REACH Candidate List substances | Lead (CAS no. 7439-92-1) |
| Supply voltage [V] AC [max] | 230 V |
| Supply voltage [V] AC [min] | 110 V |
| Type designation | AK-PC 551 |
| UL mark | Yes |
| MOQ | 1 |
Pack controller for the Danfoss ADAP-KOOL / MCX platform, two suction groups on a common condenser. This 080G0281 build has the front display; the AK-PC 551 080G0282 ships without a front display but includes the external MMIGRS2 display. The single-suction sibling is the AK-PC 351 (080G0289). Confirm rack layout (≤8 compressors) before ordering.