Setting The Tripping Class - Eaton PKE12 Handbuch

1 Motor-protective circuit-breaker PKE12, PKE32 and PKE65

1.4 Setting the tripping CLASS

1.4 Setting the tripping CLASS
32
NOTICE
PKE12, PKE32, and PKE65 units are approved for use as
protection devices for explosion-proof electric motors when used
together with PKE-XTU(W)-... trip blocks.
Using PKE motor-protective circuit-breakers with PKE-XTU(W)A-...
advanced trip blocks to protect explosion-proof electric motors and
to transmit operational data is only allowed in combination with
the functional element PKE-SWD-SP.
Table 1: Setting range of the PKE motor-protective circuit-breaker
Part no. Setting range I
A
PKE12/XTU(A)-1.2 0.3 - 1.2
PKE12/XTU(A)-4 1 - 4
PKE32/XTU(A)-4
PKE12/XTU(A)-12 3 - 12
PKE32/XTU(A)-12
PKE32/XTU(A)-32 8 - 32
PKE65/XTUW(A)-32 8 - 32
PKE65/XTU(A)-65 16 - 65
Figure 5: a Setting dial for the tripping class
PKE motor-protective circuit-breaker is suitable for both normal starting and
heavy starting duty. The tripping behavior of the overload trip is defined by
the set tripping class.
• CLASS 5: easy startups
• CLASS 10: normal startups
• CLASS 15 to CLASS 20 = heavy to very heavy starting
PKE12, PKE32, PKE65 11/17 MN03402004Z-DE/EN www.eaton.com
e