Manufactured by Eaton, the PKZM4-50 is an overload relay and rotary switch designed for 690 V AC and supports up to 50 A. It functions as a safety switch and residual current circuit breaker, offering motor protection capabilities. Typically used in industrial applications, it safeguards motors from overload, enhancing operational safety.
| Type |
Overload relay |
| Adjustment range undelayed short-circuit release |
775-775A |
| Connection |
Screw terminal |
| Degree of protection (IP) |
IP20 |
| Depth |
160mm |
| Device construction |
Built-in device fixed built-in technique |
| Dim |
(L x W x H) 160 x 55 x 140 mm |
| Durability |
0.03 x 106 |
| Height |
140mm |
| Length |
160mm |
| Max. temperature |
+55°C |
| Min. temperature |
-25°C |
| Misc Attribute 1 |
PKZM4-50 |
| Misc Attribute 2 |
3-pin |
| Number of Poles |
3 |
| Overload release current setting |
40-50A |
| Phase failure sensitive |
TRUE |
| Power loss |
24.6W |
| Rated operating voltage |
690-690V |
| Rated operation power at AC-3, 230 V |
14kW |
| Rated operation power at AC-3, 400 V |
25kW |
| Rated permanent current Iu |
50A |
| Rated short-circuit breaking capacity Icu at 400 V, AC |
50kA |
| Switch off technique |
Thermomagnetic |
| Switch/button features |
+ rotary switch |
| Switching current (max.) |
50A |
| Switching current (min.) |
40A |
| Switching Voltage |
690V AC |
| Type of control element |
Turn button |
| Type of electrical connection of main circuit |
Screw connection |
| Width |
55mm |
| With integrated auxiliary switch |
FALSE |
| With integrated under voltage release |
FALSE |
| With thermal overload protection |
FALSE |
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