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© 2020 ASCO Power Technologies. All Rights Reserved

For access to self-service tools and chat support visit se.com/us/en/work/support  or call 1-888-778-2733 for technical assistance

10

IO-70067

01/2020

ASCO 360 Surge Protective Device (SPD)

System Grounding

NOTICE

LOSS OF SURGE SUPPRESSION

•  Verify that the service entrance equipment is bonded to ground in 

accordance with all applicable codes.

Failure to follow these instructions can result in equipment damage.

The ASCO 360 has SPD elements connected from phase to ground. It is 

critical that there be a robust and effective connection to the building

grounding structure. The grounding connection must utilize an equipment 

grounding conductor run with the phase and neutral connection of the power 

system. Do not connect the SPD to a separate isolated ground.

For proper voltage suppression by the ASCO 360 SPD, use a single-point 

ground system where the service entrance grounding electrode system is 

connected to, and bonded to, all other available electrodes, building steel, 

metal water pipes, driven rods, etc. (for reference, see NEC Art 250). The 

ground impedance measurement of the electrical system must be as low as 

possible and in compliance with all applicable codes for sensitive electronic 

and computer systems.

System Grounding

Wiring and Installation

NOTICE

LOSS OF SURGE SUPPRESSION

•  Install an insulated grounding conductor inside a metallic raceway when 

the raceway is used as an additional grounding conductor. Size the 

conductor in accordance with all applicable codes.

•  Maintain adequate electrical continuity at all raceway connections.

•  Do not use isolating bushings to interrupt a metallic raceway run.

•  Do not use a separate isolated ground for the surge protective device.

•  Verify proper equipment connections to the grounding system.

•  Verify ground grid continuity by inspections and testing as part of a 

comprehensive electrical maintenance program.

Failure to follow these instructions can result in equipment damage.

HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH

•  Apply appropriate personal protective equipment (PPE) and follow safe 

electrical work practices. See NFPA 70E, NOM-029-STPS or CSA Z462.

• 

This equipment must only be installed and serviced by qualified electri

-

cal personnel.

• 

Turn off all power supplying this equipment before working on or inside 

equipment.

• 

Always use a properly rated voltage sensing device to confirm power is 

off.

•  Replace all devices, doors and covers before turning on power to this 

equipment.

• 

This equipment must be effectively grounded per all applicable codes. 

Use an equipment-grounding conductor to connect this equipment to the 

power system ground.

• 

Confirm the surge protective device voltage rating on the module or 

nameplate label is not less than the operating voltage.

Failure to follow these instructions will result in death or serious injury.

DANGER

Summary of Contents for 360

Page 1: ...Surge Protective Devices Installation Operation Manual Model 360 ...

Page 2: ... 2020 ASCO Power Technologies All Rights Reserved For access to self service tools and chat support visit se com us en work support or call 1 888 778 2733 for technical assistance 2 IO 70067 01 2020 ...

Page 3: ... Performance Electrical Voltage Rating Branch Circuit Overcurrent Protection and Disconnect Means Location of Surge Protective Device SPD System Grounding Wiring and Installation Parts List Wiring Connection Specifications Surface Mount Installation Flush Mount Installation Operation LED Status Indicators Connecting Optional Form C Dry Contact UL 1283 Required Language concerning the installation ...

Page 4: ...to potential personal injury hazards Obey all safety messages that follow this symbol to avoid possible injury or death DANGER DANGER indicates a hazardous situation which if not avoided will result in death or serious injury WARNING WARNING indicates a hazardous situation which if not avoided could result in death or serious injury CAUTION CAUTION indicates a hazardous situation which if not avoi...

Page 5: ...cer and DIDP which is known to the State of California to cause birth defects or other reproductive harm For more information go to www P65Warnings ca gov NOTICE LOSS OF BRANCH CIRCUIT POWER LOSS OF SURGE SUPPRESSION Perform periodic inspection of the surge protective device status indicator lights as part of the preventative maintenance schedule Promptly replace the surge protective device when a...

Page 6: ... STPS or CSA Z462 This equipment must only be installed and serviced by qualified electrical personnel Turn off all power supplying this equipment before working on or inside equipment Always use a properly rated voltage sensing device to confirm power is off Replace all devices doors and covers before turning on power to this equipment This equipment must be effectively grounded per all applicabl...

Page 7: ... 185 F 40 C to 85 C with a relative humidity of 0 to 95 non condensing This device has a Type 4X housing The device background noise is negligible and does not restrict the location of the installation The device has been designed to be surface mounted An additional flush mount kit is also available if required KITFMXF The service clearance should meet all applicable code requirements To obtain op...

Page 8: ...ce main or load are configured This includes whether or not the transformer windings are referenced to earth via a grounding conductor The system configuration is not based on how any specific load or equipment is connected to a particular power distribution system See Table 1 for the service voltage of each SPD Electrical Voltage Rating Table 1 Model 360 Service Voltages Figure 1 Split Phase Conf...

Page 9: ...a dedicated separate branch circuit or connected to a suitable existing branch circuit When connected to a separate dedicated branch circuit the OCPD setting must be selected to protect the conductors feeding the ASCO 360 device per applicable state and local building codes UL 1449 Type 1 SPDs have been designed and approved for line side appli cations prior to the main service disconnect without ...

Page 10: ...RGE SUPPRESSION Install an insulated grounding conductor inside a metallic raceway when the raceway is used as an additional grounding conductor Size the conductor in accordance with all applicable codes Maintain adequate electrical continuity at all raceway connections Do not use isolating bushings to interrupt a metallic raceway run Do not use a separate isolated ground for the surge protective ...

Page 11: ...ted so the wires are as short as possible Mount unit securely Note The SPD must be installed in an accessible location not within walls unless surface mounted with the ASCO KITFMXF flush mount kit 4 Install in accordance with national and local electrical codes and match the branch circuit Overcurrent Protection Device OCPD to the wire size 5 Twist conductors 1 2 turn or more for every twelve inch...

Page 12: ... an appropriately sized knockout from the panel 6 Mount SPD Weather resistant applications require additional sealing etc See figure below 7 Install in accordance with national and local electrical codes and match the branch circuit Overcurrent Protection Device OCPD to the wire size Recommended breaker size is 30 A and wire size 10 AWG 8 Do not loop wires Trim excessive wire length Figure 2 Typic...

Page 13: ... where it will be mounted and trace the center hole and mounting holes Cut this shape into the mounting sur face and mount the XMFMKIT panel to the mounting surface 3 BE CAREFUL TO NOT DROP THE SPD INTO THE WALL 4 Install the SPD to the back side of the Flush Mount Kit plate using the four 8 32 x 5 8 in Thread Cutting Screws provided with the XMFMKIT kit 5 Proceed with 6 on page 12 Flush Mount Ins...

Page 14: ...cable codes Use an equipment grounding conductor to connect this equipment to the power system ground Failure to follow these instructions will result in death or serious injury DANGER LED Status Indicators Diagnostic LEDs are located on the front of the ASCO 360 SPD device They operate as follows Verify that all phase voltages are present If any of the LEDs are not illuminated the device may not ...

Page 15: ... filter are to be of a grounding type and the grounding conductors serving these receptacles are to be connected to ground at the service equipment or other acceptable building ground such as the building frame in the case of a high rise steel frame structure d Pressure terminal or pressure splicing connectors and soldering lugs used in the installation of the filter shall be identified as being s...

Page 16: ...A Z462 This equipment must only be installed and serviced by qualified electri cal personnel Turn off all power supplying this equipment before working on or inside equipment Always use a properly rated voltage sensing device to confirm power is off Replace all devices doors and covers before turning on power to this equipment This equipment must be effectively grounded per all applicable codes Us...

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