www.stancor.com
48
RElAYS AND CONTACTORS
Type 70
SPNO
D.C. Power Contactors – Type 70
✳ Agency Certification Note: U.L. 583 Recognized (File AU2138)
Engineering Design Data
Operation in % of Nom. Breakdown Voltages
Coil Rating Coil Voltage Rating All Terminals - 60 Hz RMS Contact Material Electrical Life Mechanical Life
Nominal Open Max.
Magnetic Max. Contacts Oper. Oper. Oper.
D.C. Coil Rating Safe Opposite Same To Oper. At Per Oper. At Per Temp.
Type (Watts) Pick-up Operate Polarity Polarity Ground Power Rated Load Min. No Load Min °F
70 9 75% 110% 500 500 500 Copper 100,000 4 250,000 4 122
Silver Alloy 200,000 4 250,000 4 -
For outline drawings refer to pages 50-51.
* Terminal Type: “3A” = Grounding coil wire supplied
“3B” = Coil Common to Load
“4” = Isolated Coil
** Inrush Current: Current applied within the first 1/2 second of contact closure
Coil Contact Rating-(Amps.) DIMENSIONS
STANCOR Coil Resistance Inductive Load INCHES
PART Duty Terminal Pole Bracket Volt. (Ohms) Contact Volt. Normally Open Normally Closed Case Weight Agency✳
Sec. NUMBER Cycle Type* Form Style D.C. @ 25˚C Material D.C. Continuous Inrush** Continuous Inrush L W H (oz.) Certif.
A 70-901 Continuous 4 SPNO Standard 6 4 Copper 6 80 300 - - 2.47 3.48 2.40 12.5
70-914 Continuous 3A SPNO Standard 12 16 Copper 12 80 150 - - 2.47 3.48 2.40 12.5
B 70-918 Continuous 3B SPNO Standard 12 16 Copper 12 80 150 - - 2.47 3.48 2.40 12.5
70-902 Continuous 4 SPNO Standard 12 16 Copper 12 80 150 - - 2.47 3.48 2.40 12.5
70-906 Continuous 4 SPNO Standard 12 16 Silver 12 80 150 - - 2.47 3.48 2.40 12.5
70-915 Continuous 3A SPNO Standard 24 60 Copper 24 50 50 - - 2.47 3.48 2.40 12.5
C 70-903 Continuous 4 SPNO Standard 24 60 Copper 24 50 50 - - 2.47 3.48 2.40 12.5
70-907 Continuous 4 SPNO Standard 24 60 Silver 24 50 50 - - 2.47 3.48 2.40 12.5
70-904 Continuous 4 SPNO Standard 36 114 Copper 36 50 50 - - 2.47 3.48 2.40 12.5
70-908 Continuous 4 SPNO Standard 36 114 Silver 36 50 50 - - 2.47 3.48 2.40 12.5
Temperature Range
–– -40°F to 122°F
Terminations
–– Contacts: 5/16"-24 UNF-2A thread
–– Coil: #10-32 UNF-2A thread
Recommended Mounting
–– Plunger vertical with cap down
Hardware Torque Specification
–– Contact Terminal: 45-55 inch-lbs.
–– Coil Terminal: 12-18 inch-lbs.
— Insulated Mounting Brackets
–– Caution: A back-up wrench must be used to hold the bottom
nut stationary.
Type 70 Custom Design Capabilities
–– Coil Voltage 6 VDC through 36 VDC
–– Curved mounting bracket
–– Please complete application data form on page 95 of this section.
Note:
Caution must be used in coil selection for use in 12 volt
systems where battery charging may expose coil to continuous,
higher-than-rated voltage.
Stancor will not be responsible for consequences of misapplied
solenoids.
www.stancor.com 49
RElAYS AND CONTACTORS
D.C. Power Contactors – Type 70
Type 70
SPDT
✳ Agency Certification Note: U.L. 583 Recognized (File AU2138)
Coil Contact Rating-(Amps.) DIMENSIONS
STANCOR Coil Resistance Inductive Load INCHES
PART Duty Terminal Pole Bracket Volt. (Ohms) Contact Volt. Normally Open Normally Closed Case Weight Agency✳
Sec. NUMBER Cycle Type* Form Style D.C. @ 25˚C Material D.C. Continuous Inrush** Continuous Inrush** L W H (oz.) Certif.
A 70-922 Continuous 6 SPDT Standard 12 16 N.O. Copper 12 80 300 60 60 3.31 3.48 2.40 14.0
N.C. Silver
70-910 Continuous 6 SPDT Standard 12 16 N.O. and 12 80 150 60 60 3.31 3.48 2.40 14.0
N.C. Silver
B 70-923 Continuous 6 SPDT Standard 24 60 N.O. Copper 24 50 50 30 30 3.31 3.48 2.40 14.0
N.C. Silver
70-911 Continuous 6 SPDT Standard 24 60 N.O. and 24 50 50 30 30 3.31 3.48 2.40 14.0
N.C. Silver
70-912 Continuous 6 SPDT Standard 36 114 N.O. and 36 50 50 30 30 3.31 3.48 2.40 14.0
N.C. Silver
Engineering Design Data
Operation in % of Nom. Breakdown Voltages
Coil Rating Coil Voltage Rating All Terminals - 60 Hz RMS Contact Material Electrical Life Mechanical Life
Nominal Open Max.
Magnetic Max. Contacts Oper. Oper. Oper.
D.C. Coil Rating Safe Opposite Same To Oper. At Per Oper. At Per Temp.
Type (Watts) Pick-up Operate Polarity Polarity Ground Power Pilot Rated Load Min. No Load Min °F
70 9 75% 110% 500 500 500 Copper - 100,000 4 250,000 4 122
Silver - 200,000 4 250,000 4 -
For outline drawings refer to page 51.
* Terminal Type: “6” = Isolated Coil
** Inrush Current: Current applied within the first 1/2 second of contact closure
Temperature Range
–– -40°F to 122°F
Terminations
–– Contacts: 5/16"-24 UNF-2A thread
–– Coil: #10-32 UNF-2A thread
Recommended Mounting
–– Plunger vertical with cap down
Hardware Torque Specification
–– Contact Terminal: 45-55 inch-lbs.
–– Coil Terminal: 12-18 inch-lbs.
–– Caution: A back-up wrench must be used to hold the bottom
nut stationary.
Type 70 Custom Design Capabilities
–– Coil Voltage 6 VDC through 36 VDC
–– Curved mounting bracket
–– Please complete application data form on page 95 of this section.
H Based on 50K Cycles
Note:
Caution must be used in coil selection for use in 12 volt
systems where battery charging may expose coil to continuous,
higher-than-rated voltage.
Stancor will not be responsible for consequences of misapplied
solenoids.
www.stancor.com
50
RElAYS AND CONTACTORS
2.109
2.429
1.740
3.480
1.740
.248
1.07 8
2.43 7
.890.569
COIL CONNECTION
(ISOLATED)
.281 WIDE X .390 MOUNTING HOLE
CIRCUIT DIAGRAM
BAT.
GROUND
.248
2.38 0
3.48 0
1.740
1.740
60°
60°
60°
.569
2.429
2.10 9
BAT.
COIL
CONNECTION
(GROUNDED)
CIRCUIT DIAGRAM
.281 WIDE X .390 MOUNTING HOLE
Terminal Type 4 – Isolated Coil
Terminal Type 3A – Coil Terminal to Ground
Type 70
www.stancor.com 51
RElAYS AND CONTACTORS
Terminal Type 3B – Coil Common to Load
BAT
CIRCUIT DIAGRAM
2.109
2.429
1.740
3.480
1.740
COIL CONNECTION
(COMMON)
.248
1.078
2.437
.569
.890
.281 WIDE X .390 MOUNTING HOLE
Terminal Type 6 – Isolated Coil
2.109
3.313
1.740
3.480
1.740
.248
1.078
2.43 7
.890
.569
COIL CONNECTION
(ISOLATED)
CIRCUIT DIAGRAM
.281 WIDE X .390 MOUNTING HOLE
BAT.
Type 70
