Spec Sheet

G11-141 (Model KEP Service Entrance Rated Transfer Switch) 1/18d Page 2
Automatic Transfer Switch Controller
The Decision-Makerr MPAC 1500 Automatic Transfer Switch
Controller is used on service entrance transfer switch models.
Decision-Makerr MPAC 1500 Controller
D LCD display, 4 lines x 20 characters, backlit
D Complete programming and viewing capability at the door
using the keypad and LCD display
D LED indicators: Source available, transfer switch position,
service required (fault), and “not in auto”
D Modbus communication is standard
D Programmable voltage and frequency pickup and dropout
settings
D Programmable time delays
D Programmable generator exerciser
D Time-based load control
D Current-based load control (current sensing kit required)
D Two programmable inputs and two programmable outputs
(one programmable input and one programmable output are
used for factory connections on these models and are not
available for customer connection)
D Up to four I/O extension modules available
D RS-485 communication standard
D Ethernet communication standard
D Three-source system
D Prime power
For more information about Decision-Makerr MPAC 1500
features and functions, see specification sheet G11--128.
Ratings
Withstand Current Ratings
in RMS Symmetrical Amperes *
(No upstream circuit breaker protection required)
Power
Switching
Device
Switch
Rating,
Amps
Voltage,
Max.
Amps RMS
@ 240 V @ 480 V
Molded
case
100
600 65,000 25,000
150
200 240 100,000 NA
250 600 65,000 65,000
400
600 65,000 50,000
600
800
1000
1200
Insulated
case
800
600 100,000 100,000
1000
1200
1600
2000
2500
3000
4000
* With molded case/insulated case switching devices equipped with
integral overcurrent protection. (UL 1008 WCR)
Typical Single-Line Diagram
CUSTOMER
LOAD
N
N
N
UTILITY SUPPLY
REMOVABLE
NEUTRAL
GROUND
BOND
CONDUCTOR
STANDBY GENERATOR SET
GENERATOR
CIRCUIT
BREAKER
GCB
GENERATOR
POWER
SWITCHING
DEVICE
(NON-AUTO)
MECHANICAL
INTERLOCK
UCB UTILITY
POWER
SWITCHING
DEVICE
W/TRIP UNIT
SERVICE ENTRANCE
AUTOMATIC TRANSFER SWITCH
3-POLE MODEL SHOWN
Application Data
Auxiliary Position-Indicating Contacts
MCCB Models Use programmable digital outputs
ICCB Models 3 Normal, 2 Emergency
Rated 2.5 A @ 24/48 VDC, 6 A @ 480VAC
Environmental Specifications
Operating
Temperature
-- 1 5 Cto50C(5F to 122F)
Storage
Temperature
-- 2 0 Cto70C(--4F to 158F)
Humidity 95% noncondensing