Motor Protection Circuit Breaker
3VU1 Motor Protection Circuit Breaker (MPCB)
3VU1 Motor Protection Circuit Breaker is suitable to be used in circuit of rated voltage up to AC 660V 50/60Hz, rated current from 0.1A to 63A.It is applicable for protection of overload & short circuit of 3 phase squirrel-cage motors. It also can be used as direct starter to start the motor and a switch for changeover the circuit under normal conditions.
2. Specifications of Motor Protection Circuit Breaker:
| Type | Current Setting Range(A) |
| 3UV1300 | 0.1-0.16,0.16-0.24,0.24-0.4,0.4-0.6,0.6-1,1 - 16,1.6-2.4, 2-3.2,2.4-4,3.2-5,4-6,5-8,6-10,8-13,10-16,14-20,18-25 |
| 3VU1600 | 1 - 1.6,1.6-2.4,2.4-4,4-6,6-10,10-16,16-25,22-32,28-40, 36-52,45-63 |
3VE Motor Protection Circuit Breaker (MPCB)
3VE Motor protection circuit breaker is suitable in AC circuit of 50Hz or 60Hz,voltage up to 660V and current up to 0.1-63A and used to prevent small capacity motor and circuits from overload and short circuit.lt can be also used as direct starter for starting the motor and a switch for changeover the circuit under normal conditions.
2. Specifications of 3VE Motor Protection Circuit Breaker:
| Type | 3 VE 1 | 3VE3 | 3VE4 | |
| Pole | 3 | 3 | 3 | |
| Rated current (A) | 20 | 20 | 32 | |
| Rated Voltage (V) | 660 | ) | 660 | |
| Rated Insulation Voltage (V) | 660 | Rated Insulation Voltage(V) | 660 | |
| Current Setting Range (A) | 0.1-0.16 0.16-0.25 0.25-0.4 0.4-0.63 0.63-1 1-1.6 1.6-2.5 2-3.2 2.5-4 3.2-5 4-6.3 5-8 6.3-10 8-12.5 10-6 14-20 | 1-1.6 1.6-2.5 2.5-4 4-6.3 6.3-10 8-12.5 10-16 12.5-20 16-25 22-32 | 3.6-10 10-16 16-25 22-32 28-40 36-50 45-63 45-56 | |
| Power of 220V | 5.5 | 9 | 18 | |
| Controlled 380V | 10 | 16 | 32 | |
| Motor (KW) 660V | 13 | 26 | 58 | |
| Mechanical (1×104) | 10 | 10 | 3 | |
| Protective Feature | 1.05le | Not Act Within 2hrs | ||
| 1.21e | Act Within 2hrs Act Within 2hrs Feature | |||
| 12le | Action Snap | |||

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