MOTOR CIRCUIT-BREAKER PKZM4-25

Product code
3732021
PKZM4-25 motor protection circuit breaker.
  • Rated current 25 A, adjustment range 20-25 A
  • Motor power AC-3 12.5 kW (400 V)
  • Rotary model
  • Trip types: thermal trip and electromagnetic trip
  • Thermal trip adjustment range 0.8-1 x In
  • Electromagnetic trip setting 15.5 x In
  • Short-circuit protection 350 A
  • Dimensions: width 55 mm, height 140 mm, depth 171 mm
  • Motor protection circuit breakers also respond to single-phase loss
  • Suitable for IE3 efficiency class motors
  • Standards: IEC/EN 60947, VDE 0660, UL, CSA
  • Finger and touch protected
PKZM4 series

Eaton's classic fuseless motor protection circuit breaker combines short-circuit and earth fault protection in a single device. The PKZM4 series features a rotary design with screw terminals. Motor protection circuit breakers are fully compatible with Eaton DIL contactors and together form an ideal motor starting combination. Selecting the correct motor protection circuit breaker is easy with Eaton's motor starter configurator, the link to which is found in the attached files.

This product description is an automated translation of the original Finnish description.

Product details

Technical specifications

Product class (ETIM)Motor protection circuit-breaker (EC000074)
Overload release current setting16-25 A
Adjustment range undelayed short-circuit release388-388 A
With thermal overload protectionyes
Phase failure sensitiveyes
Switch off techniqueThermomagnetic
Rated operating voltage690-690 V
Rated permanent current Iu25 A
Rated operation power at AC-3, 230 V5.5 kW
Rated operation power at AC-3, 400 V12.5 kW
Power loss14.7 W
Type of electrical connection of main circuitScrew connection
Type of control elementTurn button
Device constructionBuilt-in device fixed built-in technique
With integrated auxiliary switchno
With integrated under voltage releaseno

Product codes

SAPABS921
STK3732021
PLC3732021
GTIN/EAN4015082223526
Manufacturer part number222352
Vendor material number222352

Basic information

Package measurements (L x W x H)140 x 110 x 70 mm
Package volume1.078 l
Package weight0.8 kg
Base uniteach
Package units1
Package contents
UNSPSC39121521
BrandEATON
VendorEATON ELECTRIC OY