BCH MS32-6.3 Motor Protection Switch MPCB (4-6.3 A)
BCH MS32-6.3 motor protection switch with thermal and magnetic releases, setting range 4-6.3 A. Manual START / STOP push-buttons with trip indication, automatic switch-off at over-current, sensitivity to phase failure and trip class 10. Mounts on a 35 mm rail (EN 60715) in vertical or horizontal position and can be controlled with an under-voltage or shunt release.
Specifications
| Cat Code | MS32-6.3 |
| Setting Range (A) | 4-6.3 |
| Operating Current of Short-Circuit Release (A) | 84 |
| Icu / Ics at 230 V (kA) | 100 / 100 |
| Icu / Ics at 400 V (kA) | 100 / 100 |
| Icu / Ics at 500 V (kA) | 6 / 4.5 |
| Icu / Ics at 690 V (kA) | 3 / 2 |
| Max. Back-up Fuse (gL) if Icp > Icu | 500 V: 35 A; 690 V: 35 A |
| Standard Motor Power 1-Phase 220-240V (kW) | 0.55 ... 0.75 |
| Standard Motor Power 3-Phase 220-240V (kW) | 1.1 ... 1.5 |
| Standard Motor Power 3-Phase 380-415V (kW) | 2.2 |
| Standard Motor Power 3-Phase 440V (kW) | 2.2 ... 3 |
| Standard Motor Power 3-Phase 500V (kW) | 2.2 ... 3 |
| Standard Motor Power 3-Phase 660-690V (kW) | 4 |
| Standards | IEC/EN 60947-2, IEC/EN 60947-4-1, IEC/EN 60947-5-1, IEC/EN 60204, UL 508, CSA 22.2 No.14 |
| Approvals | UL |
| Max. Operational Voltage Ue | 690 V |
| No. of Poles | 3 |
| Operating Current of Thermal Overload Release | 1.05 Ir < I ≤ 1.20 Ir (Ir = current setting value) |
| Sensitivity to Phase Failure | yes |
| Power Dissipation per Pole at Upper Setting Limit | 2 - 2.5 W |
| Utilization Category | AC-3 (IEC/EN 60947-4-1); A (IEC/EN 60947-2) |
| Trip Class (IEC/EN 60947-4-1) | 10 |
| Degree of Protection | IP20, after terminals covering IP40 |
| Ambient Temperature | -25 ... +60 °C |
| Storage Temperature | -25 ... +70 °C |
| Thermal Compensation Range | -5 ... +40 °C |
| Mechanical and Electrical Endurance | 100,000 op. |
| Max. Operating Cycles | 25 op./h |
| Shock Resistance (IEC 68-2-27) | 20 g |
| Vibration Resistance (IEC 68-2-6) | 5 g at f = 5 ... 150 Hz |
| Overvoltage Category / Pollution Degree | III / 3 |
| Rated Insulation Voltage Ui | 690 V |
| Rated Impulse Withstand Voltage Uimp | 6 kV |
| Weight | 0.279 kg |
| Terminal Capacity | rigid 0.75 ... 10 mm²; flexible 0.75 ... 6 mm² |
| Screw Head / Tightening Torque | PZ2 / 2.0 Nm |
| Isolating Distance between Contacts | 4.5 mm per contact place |
| Mounting | 35 mm wide rail (EN 60715), vertical or horizontal position |
Ordering / Variants
MS18 equivalent: MS18-6.3; thermal-release-only version MSB32-6.3 (max. 400 V; max. back-up fuse 16 A gL at Ue < 400 V); accessories: HS side auxiliary switch, HSV / HRS contact blocks, UR under-voltage / AR shunt release, HO-41/55 enclosure, FP-41/55 frame, P-41/55 front plate, MSK07 / MSKNL9 / MSKNL22 contactor adapters.
Datasheet, certificates and quotation on request - info@west-velocity.com.
