NEW
NEW
NEW
NEW
56 NTE Electronics, Inc. Voice (973) 748−5089 FAX (973) 748−6224 http://www.nteinc.com
Features
.250” (6.35mm) Quick Connect Terminals
Industry Standard Pinout
SPST & SPDT Versions
Flange Mount − “F” Suffix
PC Board Mount − “P” Suffix
New Weatherproof Versions (Shrouded Terminals) − “W” Suffix
SPST−NO, 1 Form “A” SPDT, 1 Form “C”
30
86
85
8787a
30
86
85
87
Contact Rating @ 14VDC
Maximum
Load Current
50 Amp Rated 70 Amp Rated
SPST−NO SPDT SPST−NO
Resistive Load 50A 50A (NO); 30A (NC) 70A
DC OPERATED
NTE Type No.
Nom.
Volt.
Contact
Arr.
Coil
Res.
Ohms
(Typ)
Nom.
Power
Max.
Contact
Cur. @
14VDC
Diag
No.
R51−1D40−12 12VDC SPST−NO 90 1.6W 50A D38
R51−1D40−12F 12VDC SPST−NO 90 1.6W 50A D38
R51−1D40−12FW 12VDC SPST−NO 90 1.6W 50A D38c
R51−1D40−24 24VDC SPST−NO 360 1.6W 50A D38
R51−1D40−24F 24VDC SPST−NO 360 1.6W 50A D38
R51−1D40−24FW 24VDC SPST−NO 360 1.6W 50A D38c
R51−5D40−12 12VDC SPDT 90 1.6W 50A D38
R51−5D40−12F 12VDC SPDT 90 1.6W 50A D38
R51−5D40−12FW 12VDC SPDT 90 1.6W 50A D38c
R51−5D40−24 24VDC SPDT 360 1.6W 50A D38
R51−5D40−24F 24VDC SPDT 360 1.6W 50A D38
R51−5D40−24FW 24VDC SPDT 360 1.6W 50A D38c
R51−1D70−12 12VDC SPST−NO 90 1.6W 70A D38a
R51−1D70−12F 12VDC SPST−NO 90 1.6W 70A D38a
R51−1D70−12P 12VDC SPST−NO 90 1.6W 70A D38b
R51−1D70−24 24VDC SPST−NO 360 1.6W 70A D38a
R51−1D70−24F 24VDC SPST−NO 360 1.6W 70A D38a
ACCESSORIES
MOUNTING
STYLES DESCRIPTION
NTE
TYPE NO.
PC MOUNT 4−PIN R95−159 (70A ONLY)
PC MOUNT 5−PIN R95−160 (50A ONLY)
WIRE LEADS 4−PIN R95−189 (50A ONLY)
WIRE LEADS 5−PIN R95−188 (50A ONLY)
WIRE HARNESSING 4−PIN R95−160A (70A ONLY)
WIRE LEADS 4-PIN SPST-NO Weatherproof Socket R95−190
WIRE LEADS 5-PIN SPDT Weatherproof socket R95−191
Note 1. To ensure a weatherproof connection, R51 Series weatherproof relays (W−suffix)
should be used in combination with the appropriate weatherproof socket.
R51 Series
50 Amp and 70 Amp, SPST and SPDT
Relays for use in Automotive/Marine/
Tractor/Lawn Mower/Rec. Vehicles/
Golf Cart Applications.
Electrical Specifications
Contact
Contact Material: AgSnO alloy
Contact Rating: See Chart
Coil
Coil voltage: See Chart
Coil resistances: See Chart
Operational Characteristics
Timing Values Operate Time: 20 mS max.....
Release Time: 20 mS max
Insulation Characteristics
Dielectric strength: 500 VRMS, between Contacts and Coil
Environmental Characteristics
Operating: −40 C to +125 C
Storage: −40 C to +155 C
Life Expectancy
Mechanical Life: 10,000,000 operations (18,000 operations/hr)
Electrical Life: 100,000 operations (1,200 operations/hr)
Weight
Std: 1.1 oz (31 gram) approx
57
NTE Electronics, Inc. Voice (973) 748−5089 FAX (973) 748−6224 http://www.nteinc.com
1.291
(32.8)
a83D83D
D38c
1.120 (28.5)
Max
1.120
(28.5)
Max
30
86
85
87
87a
.590
(15.0)
.165 (4.2)
)3.6( 052.)3.6( 052.
.236 (6.0)
.630 (16.0)
.992 (25.2) Max
.453 (11.5) Max
.661
(16.8)
.315 (8.0)
.705 (17.9)
NOTE: Dotted line indicates Flange Mount
Pin87a for SPDT devices ONLY.
Tin Plated
.098
(2.5)
.126 (3.2)
PC Mount Leads
.453 (11.5)
Max
1.040 (26.5)
Max
1.040
(26.5)
Max
.590
(15.0)
.165 (4.2)
.250 (6.3) .375 (9.5)
.236 (6.0)
.630 (16.0)
.992 (25.2) Max
.705
(17.9)
.661 (16.8)
.709 (18.0) Max
.375 (9.5)
87
30
86 85
.331 (8.4)
D38b
.331
(8.4)
8787a
86
85
30
1.417 (36.0)
.661
(16.8)
.315 (8.0)
.705 (17.9)
1.291 (32.8)
.331 (8.4)
.354
(9.0)
.886
(22.5)
.768
(19.5)
1.016 (25.8)
1.417 (36.0)
.268 (6.8)
.433
(11.0)
.453
(11.5) .571
(14.5)
1.791
(45.5)
.248
(6.3)
.653 (16.6)
Max
1.016 (25.8)
