DSH 593/06 Thermal cut-outs

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DSH 593/06

Thermal cut-outs , n# `3 r/ ?, B6 z5 |$ i0 }% o

20.5

61558-1(ed.1);am1 $ a+ n6 ]9 C' Q% V! h% {  L

; O; J' R( O, K3 nStandard: IEC 61558-1/1997
  D( v; n; S8 l& c( e  XA1/1998
Sub clause: 20.5
  L: l% a! T4 a9 m. e% Z: o1 V: SSheet N°: 593/06
/ b3 e$ G7 O6 X: }, dPage: 1 (1)
6 q0 d* P; I) Y  y2 N2 ?" ^2 @Subject: Thermal cut-outs
Key words:
( U6 }8 Q7 @9 c8 w  N/ F0 h- PTC / resistor
/ T- J+ v2 @. u7 U, I- Bi-metal contacts
3 B# B) t. d% o- IEC 60730
Meeting:
) u+ H, a0 d" h3 ~6 M( r0 iDecision confirmed
at 44th CTL meeting
7 y1 Q6 v! |/ J4 pQuestion: Is it possible to accept a thermal cut-out with a resistor or PTC in parallel with
bi-metal contacts (type 2C according to IEC 60730), considering that this type
7 A3 k' w1 b7 L( [of protection is already considered in the document 96/194/CDVas proposal for
amendment 2 of IEC 61558-1?
Decision: Yes, it is accepted.

' x2 d) R5 r' i9 r1 `: U- m& \# E2 }
8 ]% \$ S5 h. L& E! ?