Safety relay with time-off delay contacts for emergency stop buttons, safety door switches and light curtain monitoring
Designed in Germany
Produced in Germany
Function
2 safe non-delayed relay contacts, 2 safe time-off delayed contacts fixed 3 sec., 1- or 2-channel input, auto and manual start, up to SIL 3 / Cat. 4, PL e, 24 V AC/DC, width: 22.5 mm
SAFE-DELAY is a safety relay with non-delayed and time-off delayed contacts for emergency stop, safety door and light curtain monitoring up to SIL 3 and Cat. 4, PL e in accordance with EN 62061 and EN ISO 13849, certified by TÜV Rheinland, 1- or 2-channel operation with or without cross circuit detection, automatic and manual start, 2 non-delayed safe relay contacts, 2 safe contacts with adjustable time delay of 3 sec., nominal input voltage: 24 V AC/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 AC / DC
Power Consumption (max.)
AC 5.3 VA / DC 4.7 W
Input Voltage Range DC
21.6 ... 26.4 V
Input Voltage Range AC
21.6 ... 26.4 V
Frequency
50 ... 60 Hz
Control voltage at S11
24 V DC
Max. length of control line
1000 m (0.75 mm²)
Recovery Time
< 500 ms
Output Data
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Safe Contacts (non delayed)
2 NO
Switching Voltage (max.)
250 V AC
Contact Rating AC (resistive load)
250 V, 2000 VA, 8 A
Contact Rating 230 V AC-15
250 V, 3 A
Contact Rating DC (resistive load)
30 V, 240 W, 8 A
Contact Rating 24 V DC-13
24 V, 3 A
Thermal Current per contact
Max. 15 A total (see datasheet)
Minimum Contact Load
5 V, 10 mA
External Fuses
10 A gG (NO)
Switch-on Delay (max.)
< 30 ms
Switch-off Delay (max.)
3 sec. fix
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.)
229 g
Mounting DIN Rail according EN 60715
TH35
Ambient Condition
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Degree of Protection
IP20
Ambient Temperature (operating)
-15 °C ... +40 °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
2 N/O Safety Contacts - Off Delayed
0 - 30 sec. adjustable off delayed safety contacts to e.g. unlock a door after machine stops
2 N/O Safety Contacts
Two redundant relay contacts don't lead to loss of safety in case of a single fault
Automatic Start
Automatic restart of application
Manual Start
Manual start circuit to restart the application
Monitoring Emergency Stop Switches
Monitoring of one or two channel emergency stop buttons
Monitoring Safety Doors
Safe door switches with one or two N/C contacts can be monitored
Monitoring Non-Contact Switches
Non-contact safety switches with PNP or OSSD outputs can be monitored
Monitoring Light Curtains
Light curtains with safe OSSD outputs can be monitored
Single Channel Input
Possible to wire single channel applications
Double Channel Input
Redundant input to create applications up to cat.4 circuits
Feedback Loop
External N/C contacts of contactors can be monitored in the feedback loop
Cyclical Testing
Output contacts, internal logic and input circuit are tested at any switching cycle
Cross Circuit Monitoring
Safety module detects cross circuits and ground faults in input circuit
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
Block diagram SAFE-DELAY
Single channel emergency stop with ground fault monitoring.
(category 1, up to PL c / SIL 1)
Dual channel safety door monitoring with short circuit and ground fault monitoring. (Category 4, up to PL e / SIL 3)
Dual channel emergency stop with ground fault monitoring.
(Category 3, up to PL d / SIL 2)
Dual channel emergency stop with short circuit and ground fault monitoring.
(category 4, up to PL e / SIL 3)
Two channel monitoring with PNP outputs / OSSD outputs with its own short circuit monitoring. (category 4, up to PL e / SIL 3)
Prerequisite: Signal generator meet requirements for PL e / SIL 3.
