3TK28 Safety Relays
With contactor relay enabling circuits
Technical specifications
■
Type
3TK28 50
3TK28 51
3TK28 52
3TK28 53
3TK28 56
3TK28 57
Standards
EN 60204-1 (VDE 0113 Part 1), EN ISO 12100, EN 954-1, IEC 61508
Category acc. to EN 954-1
Test certificates
3
3
3
4
As basic unit
As basic unit
TÜV, UL, CSA
Rated insulation voltage U
• For control circuit
• For output contacts
• For pollution severity
i
V
V
50
690
3
Rated impulse withstand voltage U
• For control circuit
• For output contacts
imp
V
kV
500
6
Coil operating range
• AC operation
• DC operation
0.85 ... 1.1 × U
0.9 ... 1.15 × U
s
s
Coil ratings
• DC/AC actuation at U
W
8.5
s
Rated operational currents I
e
acc. to IEC 60947-5-1
• I / AC-15
at 230 V
at 24 V
A
A
6
e
• I / DC-13
10 (auxiliary switch blocks: 6)
e
Short-circuit protection
See Chapter 3, 3RH1 Contactor Relays, Technical specifications
(Weld-free protection at I = 1 kA)
K
Mechanical endurance
Electrical endurance
Operating frequency z
30 million operating cycles
See Chapter 3, 3RH1 Contactor Relays, Characteristic curves
In operating cycles/h during normal duty
1/h 1000
Response time
• Monitored start
• Autostart
ms
ms
200
300
200
300
200
300
60
60
--
--
--
--
Release time
1)
• For EMERGENCY-STOP
ms
ms
30
30
30
50
50
50
/
increments
0.05 ... 300 s
120
• For supply failure
100
100
100
120
120
Recovery time
• For EMERGENCY-STOP
• For supply failure
ms
s
20
0.02
20
0.02
20
0.02
500
7
500
7
500
7
Bridging of supply failures
ms
5
5
5
5
5
5
Minimum command duration
• EMERGENCY-STOP
• ON button
ms
ms
20
20
20
20
20
20
30
0.2 ... 5 s
Simultaneity
Conductor cross-sections
Screw-type connection
• Finely stranded with end sleeve
• Solid
2
2
mm 2 × (0.25 ... 1), 1 × (0.25 ... 2.5)
mm 2 × (0.2 ... 1), 1 × (0.2 ... 2.5)
• Tightening torque
Nm 0.5 ... 0.6
Spring-loaded terminals
(1 or 2 conductors can be connected)
2
2
2
• Solid
mm 1 × (0.2 ... 2.5)
• Finely stranded with end sleeve
• Finely stranded without end sleeve
• AWG conductors, solid or stranded
mm 1 × (0.25 ... 2.5)
mm 1 × (0.25 ... 2.5)
2 × AWG 24 ... 12
Permissible ambient temperature
• During operation
• During storage
°C
°C
–25 ... +60
–40 ... +80
Degree of protection acc. to EN 60529
• Enclosures
• Terminals
IP40
IP20
Touch protection acc. to DIN VDE 0106 Part 100
Finger-safe
Shock resistance
• Sine wave
g/ms 8/10 and 15/5
Any
Permissible mounting position
1) For instantaneous output.
Siemens LV 1 T · 2006
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