Compressor Unit Description
1-12 ULVAC CRYOGENICS INCORPORATED
Table 1-2 Components Descriptions (Continued)
Item Description
K Thermocouple
Terminal
It is a terminal block to which the mounted K thermocouples in each refrigerator
(cold head) will be connected.
INPUT POWER
Connector
It is a connector to input main power for C30PZ.
COLD HEAD
Power Connector
It is a connector to supply power for each refrigerator (cold head).
MCP
It is a circuit protector which shuts off the main power when short circuit occurs.
（Manual reset）
Rated Current：30A
CP1
It is a branch circuit protector which shuts off power of the branch circuit when
short circuit occurs.（Manual reset）
Rated Current：1A
CP2
It shuts off all the refrigerator (cold head) circuits including refrigerator motors and
refrigerator cables when short circuit occurs in the refrigerator . (Manual reset)
Rated Current：15A
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