Aclara SGM1400 Series, User Manual

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S G M 1 4 0 0 S e r i e s S m a r t M e t e r U s e r M a n u a l – S M E T S 2
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Chapter 3 • Physical Components
CSP Communications Hub Interface
The SGM1400-B Series meter has been designed to be compliant with the DCC
intimate communications hub standard. The standard covers both the mechanical
and electrical interface for support of a CSP communications hub.
Contactors and Relay Terminals
The SGM1400-B Series meters are available in a variety of supply disconnect
contactor and auxiliary relay configurations. The primary and secondary supply
disconnect / reconnect contactors have a maximum rated current of 100 A.
The SGM1412-B and SGM1416-B models may be customized with a 2 A relay
for management of an external supply contactor. The 2 A relay is voltage-free and
electrically isolated from the meter's line and neutral. The torque value for the 2 A
terminal screws is 0.2-0.3 Nm.
Status Indicator
The LCD also provides icons that show whether the main and secondary supply
contactors are open, closed, or armed and ready for closing. The status of the
auxiliary load control relay is indicated by the LCD.
Terminal Screws
The specifications of SGM1400-B terminal screws are as follows:
Contactor Terminals
Contactor terminal screws are M6 slotted / Phillips combination head screws with
a bore diameter of 8.2 mm.
Relay Terminals
Relay terminal screws are M2.5 slotted head screws with a bore diameter of 3 mm.
Lithium Battery
The SGM1400-B Series meter includes a lithium battery backup with sufficient
capacity to maintain the meter’s real-time clock for up to two years. The battery
has a 20 year lifespan that is designed in line with the product life.
Meter Security
Along with hardware seals, the SGM1400-B Series firmware will also detect and
record the following tamper incidents:
• When the terminal cover is removed from the meter (Event)
• When the terminal cover is replaced (Event)
• When the meter cover is removed from the meter (Event)
• When the meter cover is replaced (Error)