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Overload Protection (Motor Protection)
according to IEC 204-1, EN60204-1, DIN VDE0113 Part 1
according to IEC947-4-1, EN60942-4-1, DIN VDE0660 Part 102
The optimum protection for your motor.
Special features:
- Compact design
- Safe method of operation
- High switching capacity
- Very good price/performance ratio
- Individual adaption to special customer wishes possible
- Self-made product, hence short delivery periods
- With release-free mechanism
Technical data
- Designation
- KB-M-30 Mxx,xA (without undervoltage trigger)
KB-SM-30 Mxx,xA (with undervoltage trigger) - Range
- 0,16 - 16,0 A
- Adjustment
- Factory settings (to rated current specification)
- Versions
- 1-pole, 2-pole, 3-pole
- Method of operation
- Thermostatic bimetal, triggering via microswitch
- Resetting
- Automatic
- Design
- Latched contactor
- Switching capacity
- 7.5 kW 400 V~/AC-3
- Case material
- PA6.6 V-0
Use in Series
Triggering characteristics:
| Ie | Operating time |
|---|---|
| Ie x 1,05 | t>2h |
| Ie x 1,20 | t<2h |
| Ie x 1,50 | t<2min . |
Recommended back-up fuse (at 400 V):
| Rated current (range) | Back-up fuse |
|---|---|
| 0,16 - 0,60 A | 4 A |
| 0,60 - 1,00 A | 6 A |
| 1,00 - 1,60 A | 10 A |
| 1,60 - 16,0 A | 16 A |
Functional description:
This overload protection device (motor protection) with rotary button works on the principle of a latching contactor. If the motor is overloaded, the integrated thermostatic bimetal elements are heated by the rise in current to the point where they trigger the latched contactor. The high switching capacity guarantees that the overloaded motor is switched off immediately. The release-free mechanism makes it impossible for the motor to be re-started immediately. This is a vital protection facility for the life of your motor. Where electronic brakes are used we recommend a 2-pole overload protection in conjunction with temperature monitoring by a thermistor in the motor.