Specifications, EPS10-1 and EPS10-2 (continued)
Physical/Operating Specifications
Maximum Operating
Pressure
Maximum Adjustment
Pressure Range
Differential
Factory Setting
Switch Contact Ratings
250 psi
4 to 20 psi
Approximately 3 psi throughout range
Operates at rising pressure 4 to 8 psi
EPS10-1: One set SPDT (Form C)
EPS10-2: Two sets SPDT (Form C)
10.0 A, �½ HP @ 125/250 VAC
2.5 A @ 6/12/24 VDC
�½˝ NPT male glass reinforced nylon
5.12˝ H × 3.325˝ W × 4.250˝ L
(13.0 cm × 8.4 cm × 10.8 cm)
Operating Temperature Range
Cover Tamper Switch
Enclosure
Shipping Weight
Service Use
Indoor or outdoor use:
–40°F to 160°F (–40°C to 71°C)
UL Models: Optional P/N 546-8000
ULC Models: Factory Installed
Rated UL 4x, NEMA 4 for indoor or outdoor use
1.2 lbs. (.54 Kg)
Automatic Sprinkler: NFPA 13
One or Two Family Dwelling: NFPA 13D
Residential Occupancies up to 4 Stories: NFPA 13R
National Fire Alarm Code: NFPA 72
3 years
Pressure Connection
Dimensions
Warranty
Typical Sprinkler Applications
EPS10
WIRE TO ALARM
INDICATING CIRCUIT
OF FIRE ALARM
CONTROL PANEL
ALARM
CHECK
VALVE
TO
SPRINKLER
SYSTEM
WATER
MOTOR
GONG
EPS10
WIRE TO
ALARM
INDICATING
CIRCUIT
OF FIRE
ALARM
CONTROL
PANEL
ALARM
CHECK
VALVE
TO
SPRINKLER
SYSTEM
TO
SPRINKLER
SYSTEM
CHECK
VALVE
EPS10
WIRE TO
ALARM
INDICATING
CIRCUIT
OF FIRE ALARM
CONTROL PANEL
WATER
MOTOR
GONG
RETARD
RETARD
WATER LOCAL ALARM
BY-PASS SHUT OFF
VALVE
VALVE
WET SYSTEM
DRY
PIPE
VALVE
WATER
MOTOR
GONG
LOCAL ALARM
SHUT OFF
VALVE
OS & Y
VALVE
WATER
BY-PASS
VALVE
LOCAL ALARM
SHUT OFF
VALVE
OS & Y
VALVE
OS & Y
VALVE
WATER
BY-PASS
VALVE
WET SYSTEM
DRY SYSTEM
Pressure Switch Basic Dimensions
4
4
1
/
″
Electrical Connections
MODEL EPS10-1
SWITCH AT 0 PSI
B
COM
A
SWITCH AT 4-8 PSI (HIGH TRIP PT.)
B
COM
A
SWITCH 1
GROUND
SCREW
(GREEN)
SWITCH #2
B
HEX
ADJUSTMENT
SCREW
MODEL EPS10-2
SWITCHES AT 0 PSI
B
B
COM
COM
A
A
SW1
SW2
SWITCHES AT 4-8 PSI (HIGH TRIP PT.)
B
B
COM
COM
A
A SW2
SW1
BOTH SWITCHES ACTIVATE SIMULTANEOUSLY
CO
M
A
5
1
/
8
″
MAIN ADJUSTMENT
WHEEL
LOCKING
SCREW
1 2
″
/
NPT
Ordering Information
Part No.
EPS10-1
EPS10-2
EPSA10-1
EPSA10-2
Replacement Parts
S07-66-02
WFDW
546-8000
Description
Alarm Waterflow Pressure Switch, One SPDT, 4–20 PSI
Alarm Waterflow Pressure Switch, Two SPDT, 4–20 PSI
ULC/Canadian Version
ULC/Canadian Version
Replacement Tamper Screws for Cover of EPS
Replacement Tamper Proof Wrench for Cover of EPS
Cover Tamper Switch for EPS Series
©2006 System Sensor.
Product specifications subject to change without notice. Visit systemsensor.com for
current product information, including the latest version of this data sheet.
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Phone: 800-SENSOR2 • Fax: 630-377-6495
SYSTEMSENSOR [ SYSTEMSENSOR ADVANCED IDEAS. ]
