2 ac power requirements, 3 switch-mode power supply units (8400) – Cadac R-Type User Manual
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Revision R2005-2
R-Type
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CADAC power supply units are designed to run from a minimum of 208V up to a
maximum of 260V, 50/60Hz a.c. In many parts of the world, the normal single-phase
a.c. supply is 100-127V, this means that the CADAC power supply units must be con-
nected across two of the phases in the three-phase a.c. supply, see
.
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CADAC 8400 switch-mode power supply units are designed to run from a minimum
of 208V up to a maximum of 260V a.c, 50/60Hz.
The 8400 is rated thus +13V@92A, ±18V@44A and 48V@5A. This is sufficient to
supply power to a 3 frame configuration, where 4 frames or more are used, the 8019/
8020 PSUs should be used, see
3.3.7 Switch-Mode Power Supply Units (8019 &
.
The a.c. input is connected to the PSU via a 3-core cable, CMA reference 3183TQ –
BASEC approved, rated at 20A.
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The 8400 unit is based on one POWER ONE RPMS-ETETGDGD1ETK Power block,
with additional circuitry as shown on CADAC drawing number C3.8397.
FIG 3-12. 8400 switch-mode power supply unit
NOTE: Under no circumstances, should the 8400 PSU be used
without a SAFETY EARTH connection. Failure to comply with
this instruction may result in personal injury and/or damage to
equipment.