SAFE-EXP is a safety relay to be used as a contact extension for a basic safety device up to SIL 3 and Cat. 4, PL e in accordance with EN 62061 / EN 61508 and EN ISO 13849. The feedback loop has to be integrated into main safety device. Single channel operation, automatic start, 5 safe relay contacts, 1 feedback contact nominal input voltage: 24 V DC, max. switching capacity 250 V AC / 6 A, pluggable screw terminal blocks
Rated Impulse Withstand Voltage (control voltage / contacts)
2.5 kV
Dielectric Strength
4 kV
Rated Insulation Voltage
250 V
Degree of Pollution
2
Overvoltage Category
3
Input Data
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Nominal Operating Voltage
24 V DC
Input Voltage Range DC
21.6 ... 26.4 V
Power Consumption (max.)
2,3 W
Output Data
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Safe Contacts (non delayed)
5 NO
Auxiliary Contacts (non delayed)
1 NC
Switching Voltage (max.)
250 V AC
Contact Rating AC (resistive load)
8 A (250 V, 2000 VA)
Contact Rating 230 V AC-15
5 A
Contact Rating DC (resistive load)
8 A (30 V, 240 W)
Contact Rating 24 V DC-13
5 A
Thermal Current per contact
Max. 15 A total (13-14, 23-24, 33-34)
Minimum Contact Load
5 V, 10 mA
External Fuses
10 A gG (NO)
Switch-on Delay (max.)
< 30 ms
Switch-off Delay (max.)
< 50 ms
Relay Contact Material
AgSnO2
Relay Contact Life (cycles)
1 x 10⁷
Mechanical Data
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Wire Width
0.14 ... 2.5 mm²
Tightening Moment (min. / max.)
0.5 Nm / 0.6 Nm
Weight (typ.)
175 g
Mounting DIN Rail according EN 60715
TH35
Ambient Condition
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Degree of Protection
IP20
Ambient Temperature (operating)
-15 °C ... +55 °C
Ambient Temperature (storage/transport)
-15 °C ... +85 °C
Operating Altitude (max. above sea level)
< 2000 m
Dimensions
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Width (mm)
22.5 mm
Height (mm)
99 mm
Depth (mm)
114 mm
Commercial Data
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Customs Tariff Number
8536411090
Safe Extension Module
To expand any application with additional 3 N/O safe contacts
Single Channel Input
Possible to wire single channel applications
PL e, Category 4 (EN ISO 13849-1)
TÜV certified up to PL e / Category 4
SIL CL 3 (EN 62061 / IEC 61508)
TÜV certified up to SIL 3
Housing with Plug-In Terminal Blocks
SAFE-EXP block diagram
SAFE-EXP as Expansion Module - Control with safe relay contacts
Wiring as contact extension of a basic device (Category 4, up to PL e / SILCL 3, if the safety output meets PL e / SILCL 3 and short circuits in line between the safety output and A1 of the SAFE-EXP can be ruled out)
Caution:
Safety contacts will be activated immediately by switching on the basic device.
Advice:
According to EN ISO 13849-2 the wiring has to be in a short-circuit - proof control cabinet with a minimum degree of protection of IP54. For example, EN ISO 13849-2, table D4 - Cables within an electrical installation space in accordance with EN 60204-1.
A feedback loop for monitoring the SAFE-EXP is necessary to achieve SIL 3 or PL e, this can be done by wiring the feedback to the auxiliary contact 61-62.
SAFE-EXP as Expansion Module - Control with safe PLC system
Wiring as contact extension of a safe PLC (Category 4, up to PL e / SILCL 3, if the safety output meets PL e / SILCL 3 and short circuits in line between the safety output and A1 of the SAFE-EXP can be ruled out)
Caution:
Safety contacts will be activated immediately by switching on the safe output of PLC.
Advice:
According to EN ISO 13849-2 the wiring has to be in a short-circuit - proof control cabinet with a minimum degree of protection of IP54. For example, EN ISO 13849-2, table D4 - Cables within an electrical installation space in accordance with EN 60204-1.
A feedback loop for monitoring the SAFE-EXP is necessary to achieve SIL 3 or PL e, this can be done by wiring the feedback to the auxiliary contact 61-62.
