O & M Manual – Insulated Case ATS Rev: October 2020
Publication Number:
MN0100700E
Version: V10.01.20
Page 73
8.4.
Surge Suppression TVSS – SPD (Optional)
This option provides hard-wired secondary surge arrestors on both the normal and emergency
sources if requested to protect both the ATS controls and the load connections. Or if protection
is only requested for the load, only a single SPD will be connected to the ATS output connections
to protect the customers load only.
This provides a degree of protection for voltage surges and lightning strikes. They are suitable
for use in service entrance locations and meet the requirements of NEC 280, UL 1449 and ANSI
C62.11. They protect surges up to 40 kA per Phase. No field installation is necessary.
If higher surges are expected, units that offer a higher surge protection may be installed. Please
contact the factory for custom size requests.
NOTE: Please note, depending on the size of the surge arrestor, the SPD(s) may have to be
mount externally to the ATS and will increase the overall footprint of the ATS enclosure.
Engineering submittal drawings may be requested for analysis by the customer to determine if the
increased size of the footprint will pose any issues.
8.5.
Remote Disconnect – RD (Optional)
This option provides an input to the LSE8600 controller that will remove the Load from both
sources. While that input is held active, the Load will remain in the dark. Customer
interconnections can be made at the terminal block. Please see unit specific drawings for
connection detail.
8.6.
Circuit Breaker Trips – CBTN / CBTE (Optional)
This option provides circuit breaker trip units on either or both sides of the transfer switch. Trip
units will come complete with one form “C” bell alarm. When tripped, the transfer switch sent to
the “Alarm – Electrical Trip” Fault mode, and the appropriate light will be illuminated on the
LSE8600 HMI.
8.7.
Source Available Auxiliary Contacts – ACSA (Standard)
This option provides one or two form “C” contacts for customer use. They are identified as “EMR”
(Emergency Available Relay) and “NOR” (Normal Available Relay). Please see unit specific
drawings for quantity and connection detail.
