Instruction manual

Install SPDs on the load side of the main overcurrent protection to comply

with UL 1449 and the NEC.

Locate the SPD as close as possible to the circuit breaker being protected

to minimize the wire length and optimize SPD performance. Avoid long wire

runs so that the device will perform as intended. To reduce the impedance

that the wire displays to surge currents, the phase, neutral, and ground

conductors must be routed within the same conduit and tightly bundled or

twisted together to optimize device performance. Avoid sharp bends in the

conductors. See Figure 2.

Figure 2: Wiring Practice

WARNING

UNDERSIZED WIRING

(USE ONLY CONDUCTORS RATED 30 A OR GREATER.)

· The brick panel series SPD is designed for connection to a 30 A (or greater) circuit breaker.

· The circuit breaker is the intended disconnect means for the SPD without integral disconnect

option and provides overcurrent protection for the connecting conductors.

· The circuit breaker maximum rating should not exceed the ampacity of the connecting conductors.

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

LOCATION OF SPD

Phase A

Phase B

Phase C

Ground

Neutral

Interconnect wiring

- Minimize length

- Avoid sharp bends

Phases

Neutral

Ground

Neutral bus

Ground bus

To "protected" load(s)

APC BRICK PANEL PRODUCTS Surge Protective Device (SPD)

ELECTRICAL

Turn off all power supplying this equipment through the panel circuit breaker

before working on or inside the equipment.

SPD