UPS 120, UPS 150, UPS 250 and UPS 300 Uninterruptible Power Supplies Caterpillar


Symbols

Usage:

UPS 250 APZ

Grounding conductor for field wiring

Bonding point for internal bonding of equipment parts to ground

Caution. Refer to manual for more information.

Risk of electrical shock

Input

Output

Bypass input switch

DC current

Alternating current

Phase

Positive

Negative

Neutral

Caution - See service manual

No Service

Read service manual

Telecommunication connection

Not a connection - Not a connection for a telecommunication network.

High leakage current - Earth connection essential before connecting the supply.

Lithium battery - Danger of explosion if the battery is incorrectly replaced. Replace the battery with the same type of battery or replace the battery with an equivalent battery. Dispose of the batteries according to the manufactures instructions.

The heat sink or the bracket is not grounded. - Test before touching.

Safety extra low voltage connections only.

Wait for 5 minutes before disconnecting all power sources before removing any covers or panels.



Illustration 1g00785184
Bypass Input


Illustration 2g00785185
The system is designed for services that have a three wire grounded wire configuration.


Illustration 3g00785207
The system is designed for services that have a delta configuration.


Illustration 4g00785208
The system is designed for services that are impedance grounded.


Illustration 5g00785210
The system is designed for with services that have a 4-wire grounded wire configuration.


Illustration 6g00785212
The UPS receives power from multiple sources.


Illustration 7g00785215
Maintenance bypass switch


Illustration 8g02442538
Warning bypass switch shut off


Illustration 9g00785216
Input isolation switch


Illustration 10g00785218
Output isolation switch


Illustration 11g02442139
MMU modules are connected in parallel. Voltage may be present at the output of this module when the input power has been removed.


Illustration 12g02442496
MMU disconnect switch


Illustration 13g02442560
MMU modules are connected in parallel. Deenergize input and output switches prior to servicing.


Illustration 14g00785222
"On" symbol


Illustration 15g00785223
"Off" symbol

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