Product Details:
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| Feature: | Setting By Knob | Degree Of Protection: | IP 20 |
|---|---|---|---|
| Indicators: | ABC Overload & Phase Loss | Contact Capacity: | 1A 380VAC |
| Output Contacts: | 1 NC(SCR Output) | Mounting: | Screw Fixing |
Three Phase Monitoring Electronic Overload Relay For Lifts Elevators
Setting method
1. First adjust the knob clockwise to the max. Start the motor until the motor is in normal operating condition.
2. Then slowly adjust the knob anti-clockwise till the overload indicatorlights up, so the protector is just in a critical state of overload.
3. After that slowly adjust the knob clockwise till the overload indicatorgoes out,setting completed.
Features
1) Integrative structure
2) Three-phase monitoring of overload, phase loss, phase unbalance
3) Powered by the measuring circuit
4) 1 NC SCR output contact
5) 4 LEDs for status indication
Protecive Functions
1) Overload
2) Phase Loss
3) Phase Unbalance
Technical data
| Model | JDB-1 |
| Input Circuit=Measuring Circuit | L1,L2,L3 |
| Current Range |
2.5-5A,4-10A,8-20A,16-40A 32-80A,63-160A,150-320A,50Hz |
| Monitoring Functions | Overload,Phase Loss,Phase Unbalance |
| Setting Method | By Knob |
| Startup Delay | 5s,10s,20s(10s default) |
| Delay Time For Overload | Inverse Time 80s~10s for 1.2~5 Times |
| Phase Unbalance Threshold | ≥50% Unbalance Ratio |
|
Delay Time for Phase Loss and Phase Unbalance |
≤1s |
| Reset Time | 60±10s,Reset By Power Cycle |
| Applicable Voltage Range | AC24V~380V,50Hz |
| Indicators | ABC Overload and Phase Loss |
| Output Contacts | 1NC (SCR Output) |
| Contact Capacity | 1A 380VAC(Resistive Load) |
| Degree of Protection | IP 20 |
| Working Conditions | -25℃~65℃,≤85%RH,Non-condensing |
| Mechanical Durability | 1000000 Cycles |
| Dielectric Strength | >2KVAC 1Min |
| Weight | 200g |
| Dimension |
2.5-40A:38*90*63mm 80~300A:44.5*123*67mm |
| Mounting | Screw Fixing |
Contact Person: sales
Tel: +8613757785251
