GE Security EST3 User Manual

Access control applications
EST3 Installation and Service Manual 3.37
Power for intermittent locks
Description of the application
By intermittent locks, we mean locks that operate, on average,
less than 30 seconds in every minute. In these applications, the
CRC battery can provide the power needed to operate the lock.
The CRC can be powered by the 3-PPS/M. It uses this power
source to charge an internal 1.2 Ah sealed lead acid battery. The
battery then provides the power needed to operate the door lock.
Because the battery powers the door strike, this configuration
cannot be used for maglocks or strikes that are active more than
30 seconds in a minute. In these conditions the battery would not
have enough time to charge and keep up with the drain. For
heavy or continuous duty applications, refer to the topic Power
for continuous locks presented in this chapter.
A typical application using CRC battery power is shown in
Figure 3-13, below.
3-SAC3-PPS/M
CRC
Strike
Card
reader
24 Vdc
SAC bus
Control panel
Power supply
Other factors
Hardware configuration
SDU programming
ACDB/KDC operation
X
X
X
X
Figure 3-13: CRC controlling an intermittent strike

GE Security EST3 Specifications

General

Brand	GE Security
Model	EST3
Category	Security Sensors
Language	English