Finder 20.21.8.024.4000 16A Modular Step Relay 20.21.8.024.4000 24 Vac SPST-NO 16 A Max 400 V/AC / 30 Vdc (AC1) 4000VA/( 20.21.8.024.4000 Ficha De Dados
Códigos do produto
20.21.8.024.4000
Example: 20 series relay, 35 mm rail (EN 60715) mount, double phase switch, 2 NO (DPST-NO) 16 A contacts, coil rated at 12 V DC,
AgSnO
2
contacts.
2
Ordering information
Type
Number
of steps
Sequence
Coil specifications
Nominal Coil code Operating range
Resistance Consumption
voltage
I
at U
N
U
N
U
min
U
max
R
(50 Hz)
V
V
V
Ω
mA
8
8.008
6.8
8.8
4
800
12
8.012
10.2
13.2
7.5
550
24
8.024
20.4
26.4
27
275
48
8.048
40.8
52.8
106
150
110
8.110
93.5
121
590
64
120
8.120
102
132
680
54
230
8.230
196
253
2,500
28
240
8.240
204
264
2,700
27.5
AC version data
Contact material
0 = AgNi standard
4 = AgSnO
0 = AgNi standard
4 = AgSnO
2
Coil voltage
See coil specifications
See coil specifications
Coil version
8 = AC (50/60 Hz)
9 = DC
8 = AC (50/60 Hz)
9 = DC
Series
Type
2 = 35 mm rail (EN 60715) mount
No. of poles
1 = Single phase switch 1 NO (SPST-NO)
2 = Double phase switch 2 NO (DPST-NO)
3 = Double phase switch 1 NC+1 NO (SPST-NO+SPST-NC)
4 = 4 sequence double phase switch 2 NO (DPST-NO)
6 = 3 sequence double phase switch 2 NO (DPST-NO)
8 = 4 sequence double phase switch 2 NO (DPST-NO)
Type
2 = 35 mm rail (EN 60715) mount
No. of poles
1 = Single phase switch 1 NO (SPST-NO)
2 = Double phase switch 2 NO (DPST-NO)
3 = Double phase switch 1 NC+1 NO (SPST-NO+SPST-NC)
4 = 4 sequence double phase switch 2 NO (DPST-NO)
6 = 3 sequence double phase switch 2 NO (DPST-NO)
8 = 4 sequence double phase switch 2 NO (DPST-NO)
2
2
4
0
9
0
0
.
.
.
.
0 1 2
2 0
20 Series - Modular step relays 16 A
Nominal
Coil code
Operating range
Resistance Consumption
voltage
I
at U
N
U
N
U
min
U
max
R
V
V
V
Ω
mA
12
9.012
10.8
13.2
27
440
24
9.024
21.6
26.4
105
230
48
9.048
43.2
52.8
440
110
110
9.110
99
121
2,330
47
DC version data
If the coil is operated for a prolonged period of time, adequate ventilation of the relays must be provided - suggested gap of 9 mm between
adjacent relays.
adjacent relays.
Technical data
Insulation
Dielectric strength
between supply and contacts
V AC 3,500
between open contacts
V AC 2,000
between adjacent contacts
V AC 2,000
Other data
Power lost to the environment
with rated current and coil deenergised W 1.3 (20.21, 20.23, 20.28)
2.6 (20.22, 20.24, 20.26)
Screw torque
Nm 0.8
0.8
Coil terminals
Contact terminals
Max. wire size
solid cable
stranded cable
solid cable
stranded cable
mm
2
1x4 / 2x2.5
1x2.5 / 2x2.5
1x6 / 2x4
1x4 / 2x2.5
AWG 1x12 / 2x14
1x14 / 2x14
1x10 / 2x12
1x12 / 2x14