The tightening torque values for AB1VV435 are different. Our catalog indicates 0.5 - 0.7Nm and for UL 8.0 lbf-in.
Goals and Symptoms
The tightening torque values for AB1VV435 are different. Our catalog indicates 0.5 - 0.7Nm and for UL 8.0 lbf-in.
Facts and Changes
AB1
Terminal blocks
Torque
UL
IEC
Causes and Fixes
Both torque values are correct. The difference is due to the fact that the purpose of the torque test is not the same depending on the standard:
UL considers that the product must withstand 8lbf/in without breaking, to check the resistance of the terminals.
IEC considers that the torque of 05-07 N.m is a sufficient value to resist to application conditions.
This is why we recommend in our catalogue the IEC value.
Legacy KB System (APS) Data: RESL202343 V1.0, Originally authored by LaBe on 05/24/2010, Last Edited by LaBe on 05/24/2010
Related ranges: AB1, DB6
Publisert for: Schneider Electric Norway
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