The Bray Series 70 Electric Actuator provides
a rugged, compact industrial actuator solution
to a wide range of quarter turn applications
including butterfly valves, ball valves, and
dampers. Available in torque outputs from
600 to 18,000 lb. in. (68 to 2033 Nm), these
actuators mount directly to Bray and other
industry standard butterfly valves without
the need for brackets and linkages. The manual
declutchable override handwheel is standard
on all Bray Series 70 actuators, providing end
user convenience in installation, commissioning
and service.
Industrial Electric Actuators
Series 70 - Features and Benefits
On/Off and modulating models are available in 24, 110 and 220 VAC. The standard enclosure is
NEMA 4x and IP65 rated with an industrial polyester finish, making the Series 70 the ideal choice for
cooling tower valves and other outdoor applications. The advanced Servo Pro modulating control card
assures compatibility with virtually any analog control signal used in today’s building automation and
temperature control systems.
FEATURESBENEFITS
Compact design and direct mounting
UL, CSA and CE approved (most models)
High visibility beacon position indicator
Industrial Actuators
Internal isolation relays
Manual declutchable override handwheel
Fits in tight spaces, installs easily
Assures universal application acceptability
Assists in field operation
Allows parallel wiring of multiple actuators from a
single control output
Allows manual positioning without disconnecting power
IA-3
Advanced Servo Pro modulating option
Optional battery backup on 24 VAC models
Provides on-board diagnostics and user adjustable
options including control signal type, speed controls
and other features.
Assures return to a predetermined position upon loss
of power supply
Use Series 70 actuators only to control equipment under normal operating conditions. Where failure or
malfunction of the electric actuator could lead to personal injury or property damage to the controlled
equipment or other property, additional precautions must be designed into the control system. Incorporate and
maintain other devices, such as supervisory or alarm systems or safety or limit controls, intended to warn of or
protect against failure or malfunction of the electric actuator.
11/2012
Industrial Actuators
IA-4
Industrial Actuators
Industrial Electric Actuators
Specifications - Series 70
SPECIFICATIONS
Industrial electric actuators shall include manual declutchable override handwheel and high visibility position
indication. Motors shall be continuous duty. Enclosure shall be NEMA 4X, IP 65 rated. Actuator shall conform
to ISO 5211 standards for direct mounting onto quarter turn valves. On/Off actuators shall be equipped with
internal isolation relays to allow parallel wiring of multiple units. Modulating actuators shall be equipped with
a microprocessor-based servo control with on-board diagnostics. Actuator shall be UL, CSA and CE approved.
Actuators shall be Bray Series 70 or approved equal.
ServoControl Input0 to 10 VDC, 2 to 10 VDC, 0 to 5 VDC, 4 to 20 mA
(Modulating Models)Input ImpedanceVoltage: 1000K Ohms; Current: 250 Ohms
HousingDie Cast Aluminum, Polyester Finish
Industrial Actuators
Conduit Entries (2)70-0061, 1/2" NPT
Terminal StripOn/off Models, 12 to 22 AWG
Ambient Temperature-20 to 150F (-29 to 65C)
Agency Listings (120V)UL, CE, CSA
The performance specifications are nominal and conform to acceptable industry standards. For application at conditions beyond these specifications,
consult the nearest Bray office. Bray controls shall not be liable for damages resulting from misapplication or misuse of its products.
IA-5
NEMA 4X, IP 65
All Other Models, 3/4" NPT
Modulating Models, 14 to 24 AWG
11/2012
Industrial Electric Actuators
Industrial Actuators
Wiring - Series 70
WIRING
Note: Use this Series 70 Electric Actuator only to control equipment under normal operating conditions. Where failure
or malfunction of the electric actuator could lead to personal injury or property damage to the controlled equipment
or other property, additional precautions must be designed into the control system. Incorporate and maintain other
devices such as supervisory or alarm systems or safety or limit controls intended to warn of, or protect against, failure
or malfunction of the electric actuator.
Note: Do not install or use the Series 70 Electric Actuator in or near environments where corrosive substances or vapors
could be present. Exposure of the electric actuator to corrosive environments may damage the internal components of
the device, and will void the warranty.
SINGLE PHASE
POWER SUPPLY
120 VAC ON/OFF WIRING
FIELD WIRING
CLOSE N.O.
(VOLTAGE FREE)
OPEN N.O.
(VOLTAGE FREE)
N
L
FOR HEATER OPTION ONLY
CLOSE
OPEN
ACTUATOR
OPEN
CLOSE
OC
MOTOR
N
GROUND
AUX SWITCH CLOSE
(VOLTAGE FREE)
AUX SWITCH OPEN
(VOLTAGE FREE)
SINGLE PHASE
POWER SUPPLY
INCOMING COMMAND SIGNAL
+ 5 VDC AT 50 mA
(RESISTIVE CONTROL)
NEUTRAL
LIVE
GROUND
POSITION
FEEDBACK
DEVICE
LOAD DEVICE
NOT TO EXCEED
500 OHM
FIELD WIRINGACTUATOR
BLUE
RED
YELLOW OR
BLACK
A
B
C
D
1
2
3
4
5
6
7
8
9
CLOSE N.O.
(VOLTAGE FREE)
OPEN N.O.
(VOLTAGE FREE)
24 VAC
SINGLE PHASE
POWER SUPPLY
GROUND
120 VAC MODULATING WIRING
N.O.
N.O.
-
+
-
+
NOTE: 24 VAC SERVO HAS
2 TERMINALS ONLY
A
B
C
D
E
F
CALIBRATE
OUTGOING FEEDBACK SIGNAL
24 VAC ON/OFF WIRING
N
INPUT
(-)
INPUT
(+)
+5
VDC
OUTPUT (-)
OUTPUT (+ )
HIGH
VOLTAGE
MOTOR
CLOSE
MOTOR
OPEN
NEUTRAL
NEUTRAL
LINE
POWER
OPEN
OFF
CLOSE
OPEN
SPEED
FUSE
7 8910
SPEED
PRO
FACTORY
DEAD BAND
CLOSE
SERVO
®
HEATER
FOR HEATER OPTION ONLY
-
DC
MOTOR
+
1 234 5 6
STATUS
ON
COM
FB POT
+5
CONTROL BO X
COM
OPEN
CLOSE
COMMON
HANDWHEEL
TORQUE LIMIT
COM
OPEN
CLOSE
COMMON
CLOSE
LIMIT
OPEN
LIMIT
L
WHITE
BLACK
A
B
C
D
1
2
3
4
5
6
Industrial Actuators
11/2012
IA-6
Industrial Actuators
Industrial Electric Actuators
Wiring - Series 70
WIRING
AUX SWITCH CLOSE
(VOLTAGE FREE)
AUX SWITCH OPEN
(VOLTAGE FREE)
24 VAC
POWER
{
SUPPLY
POSITIVE INCOMING
COMMAND SIGNAL
24 VAC 3WIRE MODULATING
N.O.
N.O.
NEUTRAL
LIVE
GROUND
+
+ 5 VDC AT 50 mA
(RESISTIVE CONTROL)
POSITION
FEEDBACK
DEVICE
LOAD DEVICE
NOT TO EXCEED
500 OHM
-
OUTGOING FEEDBACK SIGNAL
+
Notes:
1. Command signal and feedback wires MUST be shielded and grounded for proper servo operation.
A
B
C
D
E
F
CLOSE
SERVO
®
DEAD BAND
HEATER
1 234 5 6
STATUS
ON
COM
FB POT
+5
CONTROL BOX
COM
OPEN
CLOSE
COMMON
HANDWHEEL
TORQUE LIMIT
COM
OPEN
CLOSE
COMMON
CLOSE
LIMIT
OPEN
LIMIT
CALIBRATE
INPUT
(-)
INPUT
(+)
+5
VDC
OUTPUT (-)
OUTPUT (+)
MOTOR
CLOSE
MOTOR
OPEN
NEUTRAL
LINE
POWER
OPEN
SPEED
FUSE
7 8910
SPEED
PRO
2. The command signal input (-) terminal is internally
connected to the servo neutral terminal. DO NOT
connect the live to the neutral terminal on the servo.
The 24 V Servo Pros (Revision J) can be
wired 3 or 4 wire configured
Industrial Actuators
INCOMING COMMAND SIGNAL
AUX SWITCH CLOSE
(VOLTAGE FREE)
AUX SWITCH OPEN
(VOLTAGE FREE)
24 VAC
POWER
SUPPLY
+ 5 VDC AT 50 mA
(RESISTIVE CONTROL)
NOT TO EXCEED
24 VAC 4WIRE MODULATING
NEUTRAL
LIVE
{
GROUND
POSITION
FEEDBACK
DEVICE
LOAD DEVICE
500 OHM
{
N.O.
N.O.
-
+
-
OUTGOING FEEDBACK SIGNAL
+
A
B
C
D
E
F
CLOSE
SERVO
DEAD BAND
®
HEATER
1 234 5 6
STATUS
ON
COM
FB POT
+5
CONTROL BOX
COM
OPEN
CLOSE
COMMON
HANDWHEEL
TORQUE LIMIT
COM
OPEN
CLOSE
COMMON
CLOSE
LIMIT
OPEN
LIMIT
CALIBRATE
INPUT
(-)
INPUT
(+)
+5
VDC
OUTPUT (-)
OUTPUT (+)
MOTOR
CLOSE
MOTOR
OPEN
NEUTRAL
LINE
POWER
OPEN
SPEED
FUSE
7 8910
SPEED
PRO
IA-7
11/2012
DIMENSIONS
SERIES 70 ACTUATOR DIMENSIONS
ACTUATOR
MODEL
NUMBER
S70-0061
S70-0121
S70-0201
S70-0301
S70-0501
S70-0651
S70-1300
S70-1800
Dimensions are in Inches [Millimeters in brackets]
ABCDEFGHJ
7.5
5.6
3.0
5.1
[191]
[142]
[76]
[130]
10.1
7.8
3.7
6.5
[257]
[198]
[94]
[165]
12.1
9.5
5.6
7.2
[307]
[241]
[142]
[183]
12.1
9.5
6.0
12.5
[307]
[241]
[152]
[317]
70-0061 to 70-0651
Allow 5.0 [127]
For Cover Removal
Industrial Electric Actuators
Dimensions - Series 70
Please reference illustration below
K
(UNC)
x B.C.
[51]
[66]
[79]
[211]
5/16-18
x ø2.76
F07
5/16-18
x ø2.76
F07
1/2-13
x ø4.92
F12
1/2-13
x ø4.92
F12
1.9
[48]
2.5
[64]
2.9
[74]
8.1
[206]
1.94
[49.3]
2.69
[68.3]
3.19
[81]
9.2
[234]
.19
[4.8]
.56
[14.2]
.56
[14.2]
.56
[14.2]
1/2‡2.0
3/4‡2.6
3/4‡3.1
3/4‡8.3
M
(UNC)
x B.C.
—
1/2-13
x ø4.92
F12
3/4-10
x ø6.50
F16
3/4-10
x ø6.50
F16
Industrial Actuators
NPQSTU
.75
.51
[19]
[13]
1.18
.87
[30]
[22]
See Detail A1
See Detail A2
øR
1.75
3.5
[44]
[89]
2.20
[56]8[203]
12
[305]
12
[305]
___
___
___
6.1
12.7
[155]
[323]8[203]
F
Wt.
lbs
[kgs]
12
[6]
28
[13]
48
[22]
118
[54]
1.60
[41]
D
1.25
[32]
J
Typically .78
[20]
Holes For
#10-24 UNC
or M5
4 Places
70-1300 to 70-1800
Holes For
#10-24 UNC
[M5]
Allow 5.0 for
Cover Removal
1.25 [32]
D
3.00
[76]
B
H NPT Conduit Entry 2 Places
B
.60 For Override
[15] Engagement
E
øA
M
Typically
4 Places
øA
P
K
Detail A1 - Output Bore
(Series 70-030,
050, 065 Only)
.47
G
[12]
øN x Q Deep
ø1.97 x 2.6 Deep
[50 x 66]
Typically
4 Places
øR
F
S
T
U
J
Typically .78
[20]
Max Stem
H NPT Conduit Entry 2 Places
3.00
[76]
5.4
Entry
E
K
Typically
4 Places
Detail A2 - Output Bore
G
C
øR
2.38
[60]
.47
[12]
1.97
[50]
3.05
[77.9]
S70-130/180S70-131/181
[15.8]
M
Typically
4 Places
.62
2.50
[62.7]
Industrial Actuators
IA-8
11/2012
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