SONG CHUAN
154
821
Contact Rating
Ordering Information
Type List
Coil Rating (DC)
Features
Specification
ϭʳMiniature 25A 250VAC Power Relays.
ϭʳUL, CSA and TUV approved.
ϭʳWith and without quick terminals on top.
ϭʳInductive load COS=0.7, 20A 250VAC, inrush 80A
ʳ250VAC, 400ms suitable for compressor load switching
and HVAC applications.
Terminal styleʳContact formʳDesignationʳ
W (Quick terminal) 1A (SPNO) 821-W-1A-C
P (PCB terminal) 1A (SPNO) 821-P-1A-C
821 - W - 1A - C
1234
1. 821 -- Basic series designation 3. 1A -- Single pole normally open
2. W -- With quick terminals 4. C -- Dust cover
P--
With printed circuit board wiring terminals
Resistive load 25A 240VAC, 20A 30VDC
Inductive load (cosF0.7) 20A 250VAC (Inrush 80A)
Ratedʳ
voltageʳ
(V)ʳ
Rated currentʳ
p10 % at 23°Cʳ
(mA)ʳ
Coil resistanceʳ
p10 % at 23°Cʳ
(7)ʳ
Max. continuousʳ
voltageʳ
at 55°Cʳ
Pick upʳ
voltage(Max)ʳ
at 23°Cʳ
Drop outʳ
voltage(Min)ʳ
at 23°Cʳ
Power consumptionʳ
at ratedʳ
voltageʳ
5 180 27.8
6 150 40
9 100 90
12 75 160
approx. 0.9W
24 38 640
120 % of
rated
voltage
75 % of
rated
voltage
10 % of
rated
voltage
ʳ
48 19 2560
Contact material AgSnO alloy
Contact resistance (1) 50m7 Max.
ϭComply with RoHS-Directive 2002/95/EC.
SONG CHUAN
155
821
Safety Approval
Safety Approval Rating
NoteΚ(1) initial value
Operate time (1) 20ms Max.
Release time (1) 10ms Max.
Insulation resistance (1) 100 M7 Min. (DC 500V)
Between open contact : AC 1200V , 50/60Hz 1 min.
Dielectric strength (1)
Between contact and coil : AC 3600V , 50/60Hz 1 min.
Operating extremes 10Д50Hz , amplitude 1.0 mm
Vibration resistance
Damage limits 10Д50Hz , amplitude 2.0 mm
Operating extremes 10G
Shock resistance
Damage limits 100G
10,000,000 operations
Mechanical
(frequency 18,000 operations/hr)
Life expectancy
100,000 operations
Electrical
(frequency 1,200 operations/hr)
Operating ambient temperature -25Д+55°C (no freezing)
Weight Approx. 27.3 g
Certified UL CSA TUV
File No. E88991 LR90143 R 09452438
UL CSA TUV
25A 250VAC 25A 250VAC 25A 250VAC
20A 30VDC 20A 30VDC 20A 30VDC
1HP 125VAC 1HP 125VAC 20A 250VAC cosF 0.7
1-1/2HP 250VAC 1-1/2HP 250VAC 12A 250VAC cos F 0.4
TV-10 TV-10
SONG CHUAN
156
821
Ϭ821-P
Outline Dimensions
Ϭ821-W
(1.087)
27.6
(0.866)
(0.197)
5
4
1
22
3
2
(0.472)
12
(0.394)
10
(0.098)
3.4
(0.134)
6.35
(0.250)
7.9
(0.311)
(0.728)
18.5MAX
(0.012)
2.5
1.5
(0.059)
0.3
31MAX
(1.220)
12.2
(0.480)
0.8
(0.031) (0.031)
0.8
1.3
(0.051)
8.3
(0.327)
0.8
(0.031)
30.5MAX
(1.201)
(0.157)
4
(0.012)
0.3
(1.087)
27.6
(0.866)
(0.197)
5
1
4
22 (0.394)
(0.472)
12
2
3
10
18.5MAX
(0.728)
(0.059)
1.5
(0.012)
0.3
(1.220)
31MAX
(0.051)
1.3
(0.031)
0.8
30.5MAX
(1.201)
(0.146)
3.7
(0.012)
0.3
Wiring Diagram
BOTTOM VIEW
PC Board Layout
BOTTOM VIEW
1
4
2
3
27.6
(1.087)
22
(0.866)
5
(0.197)
(0.071)
1.8-4
10
(0.472)
12
(0.394)
SONG CHUAN
157
821
Engineering Data
Life expectancy
AC/DC resistive load/Switching current(A)
10
01
6
Number of operations
5
10
10 7
510152025
240VAC
10 4
30VDC
Temperature rise (ʨ)
20
60
50
40
30
10
% of Nominal Coil Voltage (at 23ʨ)
80
70
Coil temperature rise
25A
20A
90
100
110 1201009070 80 130
% of Nominal Coil Voltage (at 55ʨ)
130
Temperature rise (ʨ)
8070 90 100
25A
120110
Coil temperature rise
20A
50
40
60
30
20
10
0
1
avg
min
max
12011090 100
70 80
10
min
avg
max
Operate time
Release time
12
14
20
18
16
28
26
24
22
2
6
8
Operate time/Release time
Time (ms)
% of Nominal coil voltage (at 23ʨ)
———— All specifications subject to change. Please contact Song Chuan for update. ————
