EUCHNER – More than safety.
EUCHNER – More than safety.

CES-A-C5H-01-EX (Order no. 097945)

Non-contact safety switch CES-A-C5... ATEX

  • ATEX version
  • With protective plate
  • Suitable for use in zones 2 and 22 (gases and dusts)
  • Safety switches as interlocking device of type 4
  • Safety switch with integrated evaluation electronics
  • Possible to switch pulsed signals
  • 2 safety outputs (semiconductor outputs)
  • Up to category 4/PL e according to EN ISO 13849-1
CES-A-C5H-01-EX (Order no. 097945)

Description

Approach direction

Can be adjusted in 90° steps

Protective plate

A protective plate included protects the safety switch against impacts on the housing and the ingress of an explosive atmosphere.

Unicode evaluation

Each actuator is highly coded (unicode). The evaluation unit detects only the actuator that has been taught-in. Additional actuators can be taught-in.

Category according to EN ISO 13849-1

Due to two redundantly designed semiconductor outputs (safety outputs) with internal monitoring suitable for:

  • CES-A-C5H-01, category 4 / PL e according to EN ISO 13849-1

LED indicator

STATEStatus LED
OUT/ERRORSafety outputs status / diagnostics LED (combined)

Additional connections

OUTMonitoring output (semiconductor)
Dimension drawing
Dimension drawing
Wiring diagram
Wiring diagram
(View of connection side on the safety switch)
(View of connection side on the safety switch)

Dimension drawing

Dimension drawing
1LED status indication
2LED status indication
3Active face

Wiring diagram

Wiring diagram

(View of connection side on the safety switch)

(View of connection side on the safety switch)

Technical data

Approvals

Zulassung EACZulassung DGUVZulassung c_UL_us LISTED Class 2ATEX

Mechanical values and environment

Dimensions According to EN 60947-5-2
Housing material
Housing Plastic PBT V0 GF30
Weight 0,4 kg
Ambient temperature
At UB = 24 V DC -20 ... 50 °C
Degree of protection IP65/IP67
Mounting distance
Between 2 read heads or 2 actuators min.80 mm
Installation orientation Any
Tightening torque
Screws fastening bracket read head max.0,6 Nm
Fixing screws housing max.1 Nm
Ready delay max.3 s (After the operating voltage is switched on, the semiconductor outputs are switched off and the monitoring outputs are set LOW during the ready delay.)
Reaction time
After change in the actuation status max.180 ms (Corresponds to the risk time according to EN 60947-5-3. This is the maximum switch-off delay for the safety outputs following removal of the actuator.)
Switching frequency max.1 Hz
Dwell time min.0,5 s (The dwell time of an actuator inside and outside the operating distance must be at least 0.5 s to ensure reliable detection of internal faults in the evaluation unit (self-monitoring).)
Connection M12 plug connector, 8-pin, screen can be applied

Electrical connection ratings

Operating voltage DC 21 ... 24 ... 27 V DC Regulated, residual ripple < 5 %
Current consumption 80 mA
Fusing
(External) operating voltage 0,25 ... 8 A
Rated insulation voltage Ui 300 V (Tested by employers' liability insurance association up to 75 V.)
Rated impulse withstand voltage Uimp 1,5 kV
EMC protection requirements In acc. with EN 60947-5-3
Degree of contamination (external, according to EN 60947-1) 3
STATE LED
LED indicator Status LED
OUT / ERROR
LED indicator Safety outputs status / diagnostics LED (combined)
Safety outputs LA / LB
Type of output Semiconductor outputs, p-switching, short circuit-proof, electrically decoupled (To ensure safety, both safety outputs (LA and LB) must be evaluated.)
Output voltage
LOW U(LA) / U(LB) 0 ... 1 V DC
HIGH U(LA) U(+LA) - 1,5 ... U(+LA) V DC
HIGH U(LB) U(+LB) - 1,5 ... U(+LB) V DC
Output current
per safety output 1 ... 100 mA
Fusing
External, safety circuit U(+LA) / U(+LB) 0.1 A medium slow-blow
Switching load
According to UL max. DC 24 V, class 2
Rated conditional short-circuit current max.100 A
Discrepancy time
(Between the operating points of both safety outputs) max.120 ms
Power supply output load
U(+LA) / U(+LB) 24 V DC 18 ... 27 V DC
Monitoring output OUT
Type of output Semiconductor output, p-switching, short circuit-proof
Output voltage 0,8 x UB ... UB V DC
Output current max.20 mA

Work area

Repeat accuracy R
According to EN 60947-5-2 max.10 %

Other

Explosion protection
incl. cover II3G Ex ic ec IIB T5 Gc X / II3D Ex ic tc IIIC T90°C Dc X (Gc X = All the electrical connections must either be isolated from the mains supply by a safety transformer according to IEC 61558‑2‑6 with limited output voltage in the event of a fault, or by other equivalent isolation measures (PELV). Dc X = To prevent electrostatic charging, do not subject the actuator to any processes that generate a large amount of charge. Clean only with a damp cloth.)
For the approval acc. to UL the following applies Operation only with UL class 2 power supply, or equivalent measures

Reliability values according to EN ISO 13849-1

Monitoring of the safety guard position
Category 4 (Category 4 according to EN 13849-1 for monitoring short circuits of safety outputs. A short circuit on LA and LB must be detected by external pulsing or must be excluded by laying the cable with protection.)
Performance Level PL e
PFHD 3.7 x 10-9
Diagnostic Coverage (DC) 99 %
Mission time 20 y

In combination with Actuator CES-A-BPA-EX-102125

Actuating range

Distance s, actuator
Minimum distance for side approach direction min.6 mm
Operating distance
With center offset m=0 22 mm (Applies on surface mounting on aluminum; in a non-metallic environment the typical operating distance increases to 30 mm.)
Assured release distance Sar max.58 mm
Assured operating distance Sao
With center offset m=0 min.15 mm (Applies for surface mounting on aluminum)
Switching hysteresis min.1 mm (Applies for surface mounting on aluminum)

In combination with Actuator CES-A-BBA-EX

Actuating range

Distance s, actuator
Minimum distance for side approach direction min.4 mm
Operating distance
With center offset m=0 20 mm (The values apply for surface installation of the actuator.)
Assured release distance Sar max.40 mm
Assured operating distance Sao
With center offset m=0 min.18 mm (The values apply for surface installation of the actuator.)
Switching hysteresis min.2 mm (The values apply for surface installation of the actuator.)

Downloads

Technical support

Technical support
Do you have technical questions about our products, their possible use or applications? Our experts will be happy to help.

EUCHNER USA Inc.
+1 315 701-0315
info(at)euchner-usa.com