Eaton PKZM4-50 PKZM4 motor-protective breaker, 40-50A, for motors up to 22kW @ 400V. Class 10A tripping with adjustable magnetic. Installed as the primary motor branch-circuit protection device between the incoming feeder and the contactor.
Eaton PKZM4-50 PKZM4 motor-protective breaker, 40-50A, for motors up to 22kW @ 400V. Class 10A tripping with adjustable magnetic. Installed as the primary motor branch-circuit protection device between the incoming feeder and the contactor.
| Standard | IEC/EN 60947-4-1 |
| Temperature range | -25 to +55 °C |
| IP rating | IP20 |
| Approval | CE, UL, cUL, CCC, UKCA |
| Approvals | CE, UL |
| Dimensions | 130 x 55 x 125 mm |
| Weight | 0.88 kg |
| HS code | 8536.20 |
| Eaton catalogue number | 222355 |
| Type designation | PKZM4-50 |
| EAN / GTIN | 4015082223557 |
| Depth | 160 mm |
| Height | 140 mm |
| Width | 55 mm |
| Certifications | UL Category Control No.: NLRV; IEC/EN 60947-4-1; CSA; IEC/EN 60947; CE; CSA Class No.: 3211-05; CSA File No.: 165628; VDE 0660; CSA-C22.2 No. 60947-4-1-14; UL 60947-4-1; UL; UL File No.: E36332 |
| Altitude | Max. 2000 m |
| Ambient operating temperature - max | 55 °C |
| Ambient storage temperature - max | 80 °C |
| Ambient operating temperature - min | -25 °C |
| Ambient operating temperature (enclosed) - max | 40 °C |
| Ambient operating temperature (enclosed) - min | -25 °C |
| Ambient storage temperature - min | -40 °C |
| Climatic proofing | Damp heat, cyclic, to IEC 60068-2-30; Damp heat, constant, to IEC 60068-2-78 |
| Rated operational current for specified heat dissipation (In) | 50 A |
| Static heat dissipation, non-current-dependent Pvs | 0 W |
| Equipment heat dissipation, current-dependent Pvid | 24.6 W |
| Heat dissipation capacity Pdiss | 0 W |
| Heat dissipation per pole, current-dependent Pvid | 8.2 W |
| Rated frequency - max | 60 Hz |
| Rated frequency - min | 50 Hz |
| Rated operational current (Ie) | 50 A |
| Rated operational power at AC-3e, 220/230 V, 50 Hz | 14 kW |
| Rated operational power at AC-3e, 380/400 V, 50 Hz | 25 kW |
| Rated operational power at AC-3e, 440 V, 50 Hz | 30 kW |
| Rated operational power at AC-3e, 500 V, 50 Hz | 30 kW |
| Rated operational power at AC-3e, 690 V, 50 Hz | 45 kW |
| Rated operational voltage (Ue) - max | 690 V |
| Rated operational voltage (Ue) - min | 690 V |
| Rated uninterrupted current (Iu) | 50 A |
| Actuator type | Turn button |
| Features | Phase-failure sensitivity (according to IEC/EN 60947-4-1, VDE 0660 Part 102) |
| Functions | Phase failure sensitive; Motor protection |
| Number of poles | Three-pole |
| Connection | Screw terminals |
| Degree of protection | Terminals: IP00; IP20 |
| Explosion safety category for dust | ATEX dust-ex-protection, PTB 10, ATEX 3012, Ex II(2) G |
| Lifespan, electrical | 30,000 operations (at 400V, AC-3) |
| Lifespan, mechanical | 30,000 Operations (Main conducting paths) |
| Mounting position | Can be snapped on to IEC/EN 60715 top-hat rail with 7.5 or 15 mm height. |
| Operating frequency | 40 Operations/h |
| Overvoltage category | III |
| Pollution degree | 3 |
| Product category | Motor protective circuit breaker |
| Protection | Finger and back-of-hand proof, Protection against direct contact when actuated from front (EN 50274) |
| Rated impulse withstand voltage (Uimp) | 6000 V AC |
| Shock resistance | 15 g, Mechanical, According to IEC/EN 60068-2-27, Half-sinusoidal shock 10 ms |
| Suitable for | Branch circuit: Manual type E if used with terminal, or suitable for group installations, (UL/CSA); Also motors with efficiency class IE3 |
| Temperature compensation | -25 - 55 °C, Operating range; ≤ 0.25 %/K, residual error for T > 40°; -5 - 40 °C to IEC/EN 60947, VDE 0660 |
| Assigned motor power at 230/240 V, 60 Hz, 3-phase | 15 HP |
| Assigned motor power at 460/480 V, 60 Hz, 3-phase | 30 HP |
| Assigned motor power at 575/600 V, 60 Hz, 3-phase | 40 HP |
| Rated short-circuit breaking capacity Icu at 400 V AC | 50 kA |
| Short-circuit current | 60 kA DC, up to 250 V DC, Main conducting paths |
| Short-circuit current rating (group protection) | 42 kA, 600 V High Fault, Fuse, SCCR (UL/CSA); 600 A, 600 V High Fault, max. Fuse, SCCR (UL/CSA); 42 kA, 600 V High Fault, CB, SCCR (UL/CSA); 600 A, 600 V High Fault, max. CB, SCCR (UL/CSA) |
| Short-circuit current rating (type E) | Accessories required BK50/3-PKZ4-E; 50 kA, 480 Y/277 V, SCCR (UL/CSA); 50 kA, 240 V, SCCR (UL/CSA) |
| Short-circuit release | Basic device fixed 15.5 x Iu; ± 20% tolerance; 775 A, Irm |
| Switching capacity | 50 A (3 contacts in series), DC-5 up to 250V; 50 A, AC-3 up to 690 V |
| Stripping length (main cable) | 14 mm |
| Terminal capacity (flexible with ferrule) | 1 x (0.75 - 35) mm², Main cables; 2 x (0.75 - 25) mm², Main cables |
| Terminal capacity (solid) | 1 x (0.75 - 16) mm², Main cables; 2 x (0.75 - 16) mm² |
| Terminal capacity (solid/stranded AWG) | 14 - 2 |
| Tightening torque | 3.3 Nm, Screw terminals, Main cable |
| Overload release current setting - max | 50 A |
| Overload release current setting - min | 40 A |
| Tripping characteristic | Overload trigger: tripping class 10 A |
| Temperature range | -25 to +55 °C |
| IP rating | IP20 |
| Primary standard | IEC/EN 60947-4-1 |
| Dimensions | 130 x 55 x 125 mm |
| Weight | 0.88 kg |
| MOQ | 1 |