Specifications

LSN (Life Safety Network) Inverter Suggested Specifications
___ System Monitoring Terminals (SMT):
Provides two PC-board mounted terminal blocks to allow customer access to RSP (Remote
Status Panel) outputs, Inverter and Alarm active relays. These low power contacts (commonly
referred to as “dry contacts”) can be set for a time delay of up to 999 seconds. They
incorporate normally-open and normally-closed contacts.
Access to +12 Volts DC, DC ground and two normally-off relay driver signals are also
provided.
___ Charger Upgrades (C10 or C20):
For enhanced battery recharge time:
• C10 – 10 Amp charger upgrade. Available on 1.0kVA – 4.8kVA Series
• C20 – 20 Amp charger upgrade. Available on 5.5kVA – 17.5kVA Series
○ Not available with 120V input on 6.6kVA and above.
○ Not available with 208V input on 12.5kVA and above.
○ Not available with 204V input on 15kVA and above.
___ Internal Maintenance Bypass Switch (IBS):
A factory-installed, internally-mounted three-position “make before break” switch. Compatible
with all input/output combinations and any combination or quantity of output circuit breakers.
Allows connecting the utility power supply to the load without placing the inverter in
emergency mode.
___ Extended Training (ATV):
If user personnel are not available for training during the factory start-up procedure, a Dual-
Lite technician shall be scheduled for a later visit at additional cost.
2.12 System Accessories
The following accessories shall be available with the system:
___ External Maintenance Bypass Switch (MBB or BBM):
The external maintenance bypass switch allows power to be removed from the inverter
system and remain connected to the load. This allows the inverter system to be completely
removed, replaced or repaired without interruption to the load. The switch is supplied in a wall
mounted, NEMA 1 enclosure. Available in Make-Before-Break (MBB) or Break-Before-Make
(BBM) configurations. Not for use with systems having more than one single-pole output
circuit breaker, or systems with different input and output voltages.
0603447 Rev C Page 5 of 8 Rev. 9-23-09