Datasheet
Emergency stop and safety gate monitoring relays
Printing 11.03.2016
DEVICE
SAFE 4 / SAFE 4.1
Emer
g
enc
y
sto
p
APPLICATIONS
and safety gate monitoring relay
APPROVALS
CE, TÜV, UL, C-UL
CONTACTS
3 normally open safety, 1 normally auxiliary closed
LED indicators for status and supply diagnostic
SPECIAL CHARACTERISTICS
Opposite polarity between channels
With (SAFE 4) and without (SAFE 4.1) start control
LED
Power, channel 1 and channel 2
24 V AC / DC (electronic fuse)
OPERATING VOLTAGE
110, 230 V AC (with galvanic disconnection / transformer)
POWER CONSUMPTION
24 V AC: ca. 5 VA, 24 V DC: 3 W, 110 / 230 V AC: 3,7 VA
START UP DELAY / FALLBACK TIME
<50 ms / <30 ms (24 V AC <50 ms) ready after time delay <0,5 s
CONTACT CAPACITY max.
5 A, 240 V AC, 24 V AC / DC, AC15 230 V / 5 A, DC13 24 V / 5 A
CONTACT CAPACITY min. at 24 V DC (*)
6 mA
SIMULTANEITY
ENVIRONMENTAL TEMPERATURE
-25°C to + 55°C
SWITCHING CAPACITY
1200 VA (resistive load)
CONTACT SECURITY
6,3 A quick acting or 4 A time lag
OPERATING MODE
(*) We offer all devices who have a CONTACT CAPACITY of
min. 100 mA at 24 V DC with hard gold-plated contacts.
In this way the CONTACT CAPACITY of min. 100 mA is only 4 mA.
Please ask our sales team!
CONNECTION DIAGRAM
A supply voltage must be applied to terminals A1 and A2. The power
LED illuminates and 24 V DC is available at terminal S11. Terminals S12
and S22 must be connected according to the application example
selected to meet the application requirements. To start the unit
terminals S33 and S34 must be bridged with a normally open contact.
The unit works if you close this contact. At this time the contacts 13-14,
23-24 and 33-34 are closed. The LEDs channel 1 and channel 2
illuminate. In series to this start button an external contactor can be
controlled.
For version with detachable clamps (screw - or cage clamps) ...
please ask our sales team!
S33 S34
S11
S12
Not-Halt
E-Stop
Start
S21
S22
FUNCTION CIRCUIT DIAGRAM
control logic
~ ~
~
~
+
=
K1
S11
electronic
fuse
A1
(+)
A2
(-)
S34
S33
K2
K2
13
K1
S12 S22
3323 41
Certifications according to
Safety relevant substance data
Depending on wiring (only max. achievable values are given)
EN ISO 13849-1: PLe, Cat. 4
MTTFd: 154 years / high, DC: 99% / high,
CCF: achieved