QRC
www.turck.us • 1-800-544-7769 • Fax: (763) 553-0708 • TURCK Inc. Minneapolis, MN 55441 B1201 39
2-Pole, Miniature Power Plug-In Relay
C7-A20
General purpose
Two pole, change-over contacts
10 A 250 V AC1 0.5 A 110 V DC1
10 A 30 V DC1 0.2 A 220 V DC1
Contacts
Materials: Standard, code 0 AgNi
Optional, code 8 AgNi + 10µ Au
Optional, code 9 AgNi + 0.2µ Au
Max. switching current 10 A
Max. peak inrush current (20 ms) 30 A
Max. switching voltage 250 V
Max. AC load (Table 1) 2.5 KVA
Max. DC load (Table 2)
IEC 61810 EN 60947
Lloyd´s
AC1
Cos 0.4
0.5 1 1.5 2 2.5
KVA
0.1
1
10
Ops.
DC1
DC13
DC1
L/R 40ms
50 100 150 200
Volts
0.1
1
10
Amps.
4.75
FASTON .187
FASTON .187
21
1
3
5
7
A
2
4
6
8
B
56
1324
21
24221412
11
7
A1(+)
A2
8
Table 1 Electrical Life, ops. x 106
Table 2 Max. DC Load
Dimensions - mm
Relay compatible
with sockets:
S7-M, S7-L, S7-P,
S7-PO, S7-PI
Insulation
Dielectric strength (1 minute): Open contacts 1,000 V
Between adjacent poles 2.5 KV
Between contacts and coil 2.5 KV
Isolation resistance at 500 V ≥1 GΩ
Isolation, IEC 61810-5: 2.5 KV/3
Specifications
Operate time + bounce time 16 ms
Release time + bounce time 8 ms
Ambient temperature -40°C (no ice) to +70°C
Mechanical life ops. 10 Mill. AC, 20 Mill. DC relays
Electrical life at nominal load ≥100,000 ops.
Operating frequency at nominal load 1,200/hour
Protection degree IP 40/RT1
Weight avg. 43 g
Standard Types
AC 50 Hz, (60 Hz): 24, 48, 72, 115, (120), 230, (240)
X = LED (standard) C7-A20X ........ VAC
DC 12, 24, 48, 72, 110,
X = LED, no polarity (standard) C7-A20X ....... VDC
Free-wheeling diode C7-A20DX .... VDC
Polarity and free-wheeling diodes C7-A20FX..... VDC
AC/DC bridge rectifier (24, 48 or 60 V) C7-A20BX .... VDC
Coils (Ohms ±10% @ 20°C)
Pull-in voltage ≤0.8 x Un
Drop-out voltage ≥0.1 x Un
Nominal coil power 1.2 VA (AC)/1 W (DC)
VAC ΩmA VDC ΩmA
24 174 50 12 148 85
48 686 25 24 594 43
115 4K3 10.4 48 2k3 21
230 18K6 5.2 110 11K4 11
