Isolite E3-MAC Series, Installation & Operation Manual, Page: 12 / 40

Output Circuit Breakers:
Wires can be landed directly to the circuit breakers since these are UL489
type which are approved for field wiring.
Maintenance Bypass Switch:
This option will have an input terminal block for landing the incoming AC feed
wires. Connect the incoming AC feed to this terminal block.
Trip Alarms:
This option uses an auxiliary contact on the side of the output breaker to
indicate to the controls that the circuit breaker has tripped.
Switched Output:
This option has a Switched Command which controls the Switched Output.
Switched Outputs are provided with Circuit Breakers.
4.3 Installing the Output Wires
Connect the load wires to the Normally-On output terminal blocks. If your system has
output breakers, connection directly to these circuit breakers are permitted since these
are also UL489 rated. Other output configurations could include Normally-Off or
Switched outputs which also use circuit breakers as the connection points. Please refer
to your systems part number for your specific output configurations. Ensure that the
connections to these terminal blocks or breakers are secured by briefly tugging the
wires. See Section 7.4 thru 7.5 for further load type details.
NOTE – AC Input and AC output wires must be run in separate conduit or raceways per
NEC ARTICLE 700. Please ensure all codes and standards are observed.
NOTE – E3-MAC Series requires that the Neutral and Ground potential does not exceed
5 VAC for proper function. Anything above 5 VAC typically indicates that there may be
an issue such as grounding, inadequate conductor size or continuity. This should be
looked at immediately as it could cause a safety concern.
NOTE – Neutral and ground should never be tied together anywhere in the E3-MAC
Series. Always keep Neutral and Ground wires separate to ensure no shorts occur.
NOTE – Neutral (NEU) in the E3-MAC Series is common to both the Input and Output.
Never mix Neutrals for the building wiring (Non-Emergency) with the Emergency wiring.
Dedicated wiring is required by NEC code ARTICLE 700.
4.4 Special Options
Custom units are available (Section 8 Specifications
– Ordering Guide) and these may
cause the construction to differ from standard models.
12 | INSTALLATION / OPERATION MANUAL