Contax SW 2524 - REV A Przewodnik Instalacji Pobierz pdf (Strona 32)

Installation

1–14 975-0637-01-01 Rev B

This guide for use by qualified personnel only

DC Disconnects

and Overcurrent

Devices

The DC circuit from the battery to the inverter/charger must be equipped with a

disconnect and overcurrent protection device. Refer to your applicable

installation code.

Type This device usually consists of a circuit breaker, a “fused-disconnect,” or

a separate fuse (installed at each positive cable near the battery terminal) and

DC disconnect. Do not confuse AC circuit breakers with DC circuit breakers.

They are not interchangeable.

Rating The rating of the fuse or breaker must be matched to the size of cables

used in accordance with the applicable installation codes.

Location The breaker or fuse and disconnect should be located as close as

possible to the battery in the positive cable. Applicable codes may limit how far

the protection can be from the battery.

Table 1 -2 Recommended Battery Cable

Sizes

a.70°C thermoplastic insulated cable

Model Maximum

Current (A)

Cable Length

< 1.5 m

Cable Length

1.5 to 3.0 m

Conduit / (Free Air)

SW 2524 230 120

50 mm

(25 mm

)70 mm

(35 mm

)

SW 4024 230 200

240 mm

(120 mm

) 300 mm

(150 mm

)

IMPORTANT: Using a smaller gauge cable or a longer cable may cause the

inverter to shut down under heavy load.

WARNING

FIRE AND BURN HAZARD

Do not use battery cables that are insufficiently sized for expected current.

Check local electrical codes carefully.

Failure to follow this instruction can result in death or serious injury.

Table 1 -3 Recommended Fuse and Breaker Sizes

Model Fuse Size (A) Minimum Breaker Size (A)

SW 2524 230 250 250

SW 4024 230 250 250

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