APC PM4Y - Manuals

Unpacking and Preliminary Inspection • Inspect the entire shipping container for damage or signs of mishandling before unpacking the unit. • Remove the cardboard packing and further inspect the unit for any obvious shipping damages. • If damage found is a result of shipping or handling, immediately ...

Page 3 Service Clearance In addition to national and local code requirements, 36 inches of service clearance is needed at the front of the SPD. Equipment Performance To obtain the maximum system performance, the unit must be located as close to the circuit to be protected as possible,minimizing the ...

Figure 1. Typical Parallel Connections NOTE: Safety Ground required for ALL units. Page 4 Table 2: Voltage Rating and Service Type (by Model) Terminals Terminals have been provided inside the APC modular SPD units for the line (phase), neutral, and equipment safety groundconnections. Terminal wire s...

Wiring Size & Installation Torque With a parallel connection, the size of the wiring to the SPD is independent of the ampere rating of the circuit to be protected.The recommended wire size is based on the unit’s transient surge current capabilities. #6 AWG is the recommended wire sizefor phase, ...

Page 7 Figure 3: Basic PM3 and PM4 Configuration and Wiring Diagram (3-Phase WYE, 4-Wire, plus Ground)

Page 8 5/16” MountingHole (4 places) Phase APhase BConnectors Phase C Connector Ground Conductor Not to exact scale. Door removed for clarity Fuse (9 places) Mounting Flange (4 places) Surge Module with LED (9 places) Disconnect Figure 4. Basic PM4Y Configuration and Wiring Diagram (3-Phase WYE, 4-W...

Operation and Features SPD’s do not require a great deal of operator intervention after installation. NOTE: The PM Series has a green LED for each phase which extinguishes when the module is no longer providing protec-tion (fault condition). All of the PM Series of SPDs contain a diagnostic circuit ...

Page 10 Surge Counter Option In units so equipped, the surge counter option provides a means to total the number of transient voltage surges encounteredsince the counter was last reset. The surge counter circuitry includes a “supercap”. This will provide power up to four days toretain memory should ...

Periodic Inspection and Cleaning Inspection of the SPD should be performed periodically to maintain reliable system performance and continued transientvoltage surge protection. While it is difficult to establish a preventive maintenance schedule because conditions vary fromlocation to location, insp...

• MAINTENANCE OF THIS SURGE PROTECTIVE DEVICE SHOULD BE PERFORMED BYQUALIFIED ELECTRICAL PERSONNEL ONLY. • DURING NORMAL OPERATION, HAZARDOUS VOLTAGES ARE PRESENT INSIDE THE UNIT. • WHEN SERVICING THIS UNIT, BE SURE TO FOLLOW ALL ELECTRICAL SAFETY PRECAUTIONS. • ALL POWER SOURCES TO THIS UNIT SHOULD...

Diagnostic Board Removal & Replacement Instructions To remove the Diagnostic Board, refer to Figure 8 and proceed as follows: 1. Disconnect power to the SPD.2. Remove the board from the standoffs.3. Remove the connectors one at a time from the existing board and insert them into the appropriate ...

Surge Module Removal & Replacement Instructions Surge modules within the SPD may become damaged and require replacement. To remove and replace a surge module,refer to Figure 9 and proceed as follows: 1. Disconnect power to the SPD.2. Open the door on the unit by loosening the two screws that sec...