WIKA 851 - Manual (Page 8)

WIKA operating instructions magnetic snap-action contact model 821
GB
8
2003325.03 03/2011 GB/D/F/E
3. Specifications
3. Specifications
Table 1a: Limits for the magnetic snap-action contact model 821
Limits for the contact rating
with resistive load
Magnetic snap-action contact
model 821
dry gauges filled gauges
Rated voltage U
eff
max. 250 V 250 V
Rated current 1)
Make current 1.0 A 1.0 A
Breaking current 1.0 A 1.0 A
Continuous current 0.6 A 0.6 A
Contact rating max. 30 W / 50 VA 20 W / 20 VA
1) The values for rated currents shown in the above table apply to instruments with switch ver-
sion S. For instruments with switch version L these values should be halved.
(see chapter "5. Allocation of switch version to basic instruments and measuring ranges")
WARNING!
None of the limits for voltage, current and power are to be
exceeded!
We recommend the following load values to ensure safe,
continuous operation:
Table 1b: Limits for the sliding contact model 811
Limits for the contact rating
with resistive load
Sliding contact model 811
dry gauges
Rated voltage U
eff
max. 250 V
Rated current 1)
Make current 0.7 A
Breaking current 0.7 A
Continuous current 0.6 A
Contact rating max. 10 W / 18 VA