Reliance Controls PRO/TRAN 2 A304 Manuel D'utilisation page 6

Warning: Failure to properly install a multi-wire branch circuit could result in
overloading the neutral wire.
The maximum number of circuits available and those that can be used for multi-wire
branch circuits depends on the model of the transfer switch as follows:
Model
A304
A306, A506
A308
A310, A510
Balancing the Load
Changing Circuit Breakers
This product is supplied with a combination of 15- and 20-amp circuit breakers. In
some cases, a 30 amp double-pole breaker may be supplied in the A and B positions.
All circuit breaker positions will accommodate 15- and 20-amp circuit breakers, and
may be easily changed in the field. To remove a circuit breaker, remove the circuit
breaker compartment cover, unscrew the terminal screw in the breaker to be removed,
removed the wire, tilt the top of the circuit breaker towards you and lift up and out.
Reverse the procedure to install another breaker. In addition, positions A and B (but
only these positions) will accommodate 30-amp circuit breakers.
This product is UL approved for use with the field-installed breakers listed on the side
of the cabinet: Use 30 amps maximum in positions A and B, 20 amps maximum in all
other positions.
Rating of a transfer switch circuit breaker should not exceed the rating of the
corresponding branch circuit breaker in the load center.
Do not install any breaker larger than 20 amps., except in positions A and B
which may be 30 amps.
Max Available for multi-wire branch circuits
Circ
4 Any two adjacent circuits.
6 Any two adjacent circuits.
8 Any two adjacent circuits.
10 Any two adjacent circuits.
To maximize the efficiency of your generator, divide
appliance circuits and others requiring higher wattage
between adjacent circuit selector switches of the
transfer switch so that a usage balance is achieved
between the opposing legs of the generator power.
For example, on a 6-circuit transfer switch, consider
wiring the refrigerator to Switch C and the furnace to
Switch D (Figure 3).
Figure 3
4