User manual

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2.2 GSC400 Component Ratings / Standards
UUL Listing
The GSC400 is UL listed to UL508. For conditions of acceptability refer to UL file
number: E250327 or contact DynaGen. The conditions of acceptability are also
packaged with every unit.
U12V / 24V Operation
The GSC400 controller can be placed in either 12V or 24V electrical systems.
The user must order the correct GSC400 as 12V operation requires 12V relays
and 24V operation requires 24V relays.
Relays
The GSC400 comes preinstalled with the correct relays (12VDC, 40A or 24VDC,
20A) depending on the product number specified when ordered (see section 1.4
on page 12). Contact DynaGen if replacement relays are required (quote
Dynagen Part numbers from Table 33 on page 122).
UL Listed relays for 12 or 24VDC system operation are as follows:
 HASCO CAR-1A-40-DC12-S for 12VDC operation
 HASCO CAR-1A-40-DC24-S for 24VDC operation
UCAUTIONU: The above relays must be installed in the GSC400 for it to meet UL.
Relay Fuses
The GSC400 three relay outputs (crank, fuel, and extra) have external
replaceable 40A fuses.
UCAUTIONU needs to be taken when connecting relay outputs to an inductive load.
Due to the inductive nature of certain loads (starters, pull coils), initial current
draw may be higher than stated in the load specs which could damage the
onboard relays.
Output relays are protected by onboard 40A fuse protection. Smaller amperage
fuses from many automotive stores may be used in place of the higher current
40A. If installing lower amperage fuse protection, be certain that the current draw
on each relay does not exceed the fuse current limit.
An approved 40A fuse is:
 LITTLEFUSE – 257040 (32VDC, 40A, auto fast action)