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Home ProductMotor Protector Relay
General
Applications
Used in switchgear,air conditeoning units,elevator machine room,pumpsm,fans and other motor control applications,With phase loss,overload protection.
Features:
Built-in microcontrollers,current measurement accuracy≤0.2%. Konb setting,LED indicator shows working status.With phase failure,overload,unbalance,stall protection,four optional trip classes.No-load start,protection of any phase loss or overload.NO contact protection.
Model Description
Model Selection Table
|
Model |
Rated working current range |
Applicable motor power |
Core through way |
|
ZHRA2-S 6 |
0.5A~6A |
0.25kW~3kW |
|
|
ZHRA2-S 60 |
5A~60A |
3kW~30kW |
|
|
ZHRA2-S 240 |
20A~240A |
11kW~110kW |
Once core through |
Technical Parameters
|
Rated control supply voltage |
AC380V、AC220V 50/60Hz |
|
Current measurement accuracy |
≤2% |
|
Display mode |
Digital tube display |
|
Setting mode |
Button setting |
|
Rated working voltage |
AC380V |
|
Number of poles |
3P |
|
Rated insulation voltage |
AC690V |
|
IP Class |
IP20 |
|
Coordination type |
2 |
|
Type and set of contacts |
|
|
Contact capacity |
Ith:5A;AC-15:Ue/Ie 380V/0.95A 240V/1.5A |
|
Use category |
AC-15 |
|
Electrical Life |
105 |
|
Mechanical life |
106 |
|
Altitude |
≤2000m |
|
Allowable relative humidity |
≤50%(40℃)( NO condensation) |
|
Power consumption |
≤1.5 VA |
|
Installation |
Screw or DIN rail mounting |
Wiring Diagram
Dimensions(mm)
Ordering instructions
ZHRA2-60/A220
Model significance:
ZHRA2-S 60/A220 motor protector, button setting, setting current range 5A~60A, rated control voltage AC220V.
Phase Monitoring Relays
Phase monitoring relays provide protection against premature equipment failure caused by faults in a 3-phase system. These 10A-rated relays, with LED indicator(s), are compatible with Wye or Delta systems and are available in a range of voltage inputs. The crew required for these relays can be panel or 35mm DIN rail mounted.
Application • Under atypical conditions such as heavy-duty starting, braking operation, frequent switching, or insufficient cooling • In areas with gas explosion hazards such as in the oil & gas or chemical industries and for use in dusty environments such as sawmills or mills • Worldwide use thanks to globally recognized certificates • “Warning and shutdown” function using two sensor circuits with different response temperatures – this means that it is possible to respond before overheating occurs
The advantage:
• Optimal protection thanks to direct measurement of the motor temperature • With ATEX approval, even for hazardous areas – meets SIL1 according to EN 50495 • Space-saving, uniform enclosure concept in titanium gray – 17.5 or 22.5 mm width available • Simple handling thanks to removable terminals • Low-cost version for bimetallic sensors
