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52
RElAYS AND CONTACTORS
Type 120
D.C. Power Contactors – Type 120
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
120 - 75% 110% 500 500 500 Copper - 10,000 2 100,000 30 150
Silver Alloy 50,000 2 100,000 30
For outline drawings refer to page 53.
–– Water Resistant
‡ Intermittent Duty Cycle = 30 seconds “on” maximum and 6 minutes “off”
* Terminal Type: “4” = Isolated Coil, “6” = Isolated Coil Automotive, “7” = Latching Contacts
** Inrush Current: Current applied within the first 1/2 second of contact closure
Temperature Range
–– Intermittent Duty: -20°F to 150°F
–– Continuous Duty: -20°F to 120°F
Power (approximate)
–– Continuous 8.1 watts
–– Intermittent 14.4 watts
Terminations
–– Contacts: 5/16" - 24 studs, UNF - 2A thread
–– Coil: #10-32, UNF - 2A thread
Recommended Mounting
–– Coil terminals up or horizontal
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 120-901 Continuous 4 SPNO Standard 12 16.0 Silver Alloy 12 100 400 - - 2.13 2.88 3.25 6.0 -
120-907 Continuous 4 SPNO L 12 16.0 Silver Alloy 12 100 400 - - 2.50 3.00 3.25 6.0 -
120-943 Continuous 5 SPNO L 12 16.0 Silver Alloy 12 100 400 - - 2.50 3.00 3.25 6.0 -
120-913 Continuous 3 SPNO Standard 12 16.0 Silver Alloy 12 100 400 - - 2.13 2.88 3.25 6.0 -
B 120-906 Intermittent‡ 4 SPNO Standard 12 6.0 Copper 12 80 400 - - 2.13 2.88 3.25 6.0 -
120-912 Intermittent‡ 4 SPNO L 12 6.0 Copper 12 80 400 - - 2.50 3.00 3.25 6.0 -
120-902 Continuous 4 SPNO Standard 15 20.8 Silver Alloy 15 100 400 - - 2.13 2.88 3.25 6.0 -
120-908 Continuous 4 SPNO L 15 20.8 Silver Alloy 15 100 400 - - 2.50 3.00 3.25 6.0 -
120-903 Continuous 4 SPNO Standard 18 37.0 Silver Alloy 18 100 400 - - 2.13 2.88 3.25 6.0 -
C 120-904 Continuous 4 SPNO Standard 24 64.0 Silver Alloy 24 100 400 - - 2.13 2.88 3.25 6.0 -
120-910 Continuous 4 SPNO L 24 64.0 Silver Alloy 24 100 400 - - 2.50 3.00 3.25 6.0 -
120-905 Continuous 4 SPNO Standard 36 160.0 Silver Alloy 36 100 400 - - 2.13 2.88 3.25 6.0 -
120-911 Continuous 4 SPNO L 36 160.0 Silver Alloy 36 100 400 - - 2.50 3.00 3.25 6.0 -
D 120-914 Continuous 6 SPNO Standard 15 23.0 Silver Nickel 15 100 400 - - 2.13 2.87 3.09 6.0 -
120L-915 Continuous 7 SPNO L 12 6.0 Silver Alloy 12 80 400 - - 2.50 3.00 3.14 6.0 -
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 120 Custom Design Capabilities
–– Coil Voltages 6VDC through 48VDC
–– 1/4" Contact Studs
–– 1/4" Q.C. Coil Terminals
–– U.L. 94-VO rated case material
–– 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 53
RElAYS AND CONTACTORS
L
2.125
1.062
1.375 .312
2.125
W
2.875
.281 WIDE X .400 LONG
(2 SLOTS) .495
MIN.
.451
MIN.
H
3.253
#10-32 UNF-2A
THREAD
.875
5/16-24 UNF-2A THREAD
(2 PLACES)
CIRCUIT
DIAGRAM
A
2.125
1.062
1.375
.250
.281 WIDE X .400 LONG
2.125
2.875
3.094 MAX.
.048
.388
MIN.
.875
5/16-24 UNF-2A
THREAD TYP.
CIRCUIT
DIAGRAM
L
2.500
.312
1.375
3.00
2.125
3.253 MAX.
.900
1.344
1.750
.281 WIDE X .400 LONG
(4 SLOTS)
.032 X .250 QUICK CONNECT
.495 MIN.
.875
5/16-24 UNF-2A THREAD
(2 PLACES)
CIRCUIT
DIAGRAM
±
2.500
.625
1.375
.048
3.137
MAX.
.900
2.125
3.00
LABEL
.234
.281 WIDE X .400 LONG
(4 SLOTS) 1.344
1.750
4.000 .125
.220 MIN.
#10-32 UNF-2A THREAD TYP.
.495 MIN.
5/16-24 UNF-2A
THREAD TYP.
.875
CIRCUIT
DIAGRAM
L
3.25
W 3.00 .625 1.375
2.125
WIDE .281 X
.400 LONG SLOT
H MAX.
2.50
.900
.451
MIN.
.875
.495 MIN.
5/16-24 UNF-21 THD.
(2 PLACES)
#10-32 UNF-2A THD.
(2 PLACES)
CIRCUIT
DIAGRAM
Terminal Type 3 – Grounded Coil to Bracket
Terminal Type 6 – Delphi Connection (STD Bracket)
Terminal Type 4 – Isolated Coil (L Bracket)
Terminal Type 7 – Latching Coil (L Bracket)
Terminal Type 5 –
Grounded Coil with Q.C. Terminal
Type 120 & 120L
