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

CTM-LBI-BR-M-AZ-SA-165517 (Rend. sz. 165517)

Transponder-coded safety switch CTM-LBI-BR, M12

  • Safety switch with guard locking and integrated evaluation electronics
  • Series connection possible
  • Communication functions in combination with an IO-Link Gateway GWY-CB or ESM-CB
  • Short circuit monitoring
  • 2 safety outputs (semiconductor outputs)
  • Bistable guard locking
  • Category 4 / PL e according to EN ISO 13849-1
  • Actuating force 26 N
  • Extraction force 18 N
  • Plug connector M12, 8-pin
  • Auxiliary release
  • Multicode
CTM-LBI-BR-M-AZ-SA-165517 (Rend. sz. 165517)


Multicode evaluation

Every suitable actuator is detected by the switch.

Guard locking type


Guard locking controlled by input signal.

This type of guard locking has a function to prevent

  • persons from unintentionally locking themselves inside if the safety door is open in case of a power failure or if the machine is switched off.
  • the deactivation of the activated guard locking in case of a power failure.

Connector assignment

Plug connector (view of connection side)PinDesignationFunctionConnecting cable conductor coloring

1FI1BEnable input, channel 2WH
2UBOperating voltage 24 V DCBN
3FO1ASafety output, channel 1GN
4FO1BSafety output, channel 2YE
5OD/CDoor monitoring output/communicationGY
6FI1AEnable input, channel 1PK
70 VOperating voltage 0 VBU
8IMPControl input of guard locking solenoidRD
Dimension drawing
Dimension drawing
Wiring drawing
Wiring drawing

Dimension drawings

Dimension drawings
2Auxiliary release

Connection examples

Connection examples

Műszaki adatok


EAC_RU C-DE.MO05.B.00971/20c_UL_us_E155795_3/11FCC_2AJ58-07_

Work area

Repeat accuracy R
according to EN 60947-5-2 10 %

Electrical connection ratings

Power consumption
at max. switching frequency 3 W
external (operating voltage UB) 0.7 ... 8 A
Rated insulation voltage Ui 50 V
Rated impulse withstand voltage Uimp 0.5 kV
Discrepancy time
both safety outputs max. 10 ms according to EN 60947-5-3
Turn-on time max. 400 ms
Solenoid duty cycle 100 %
Off-state current Ir max. 0.25 mA
Risk time according to EN 60947-5-3
Single device max. 200 ms
Risk time according to EN 60947-5-3, extension for each additional device max. 10 ms
Switching load DC 24V, UL Class 2 (alternatively, see operating instructions)
Safety class
EN IEC 61140 III
Test pulses max. 0.3 ms
Test pulse interval 100 ms
Degree of contamination (external, according to EN 60947-1)
Industry 3
Solenoid IMP
Current consumption
Guard locking not active (open) 20 ... 50 mA
Input voltage
Guard locking active (closed) 0 ... 5 V DC
Guard locking not active (open) 20.4 ... 26.4 V DC
Monitoring output OD/C
Output type p-switching, short circuit-proof
Output voltage 0.8xUB ... UB V DC
Switching current 1 ... 50 mA
Safety input 1
Current consumption max. 7 mA Safety inputs Fl1A/Fl1B
Safety outputs FO1A / FO1B
Output type 2 semiconductor outputs, p-switching, short circuit-proof
Discrepancy time
both safety outputs max. 10 ms according to EN 60947-5-3
Output voltage
HIGH U(FO1A) / U(FO1B) UB-1.5 ... UB V DC
LOW U(FO1A) / U(FO1B) 0 ... 1 V DC
Turn-on time max. 400 ms
Switching frequency, electrical max. 0.5 Hz
Switching current
per safety output FO1A / FO1B 1 ... 150 mA
Utilization category
DC-13 24V 150mA (Caution: outputs must be protected with a free-wheeling diode in case of inductive loads)
Off-state current Ir max. 0.25 mA
Risk time according to EN 60947-5-3
Single device max. 200 ms
Risk time according to EN 60947-5-3, extension for each additional device max. 10 ms
Test pulses max. 0.3 ms (Applies to a load with C <= 30 nF and R <= 20 kohm)
Test pulse interval 100 ms
Operating voltage UB
Current consumption
IUB at operating voltage UB = 24 V max. 500 mA
Operating voltage DC
UUB 24 V DC -15% ... +15% reverse polarity protected, regulated, residual ripple < 5%, PELV

Mechanical values and environment

Approach speed max. 20 m/min
Connection Plug connector M12, 8-pin
Degree of protection IP65/IP67 (screwed tight plug connector/mating component)
Extraction force 18 N
Ready delay 5.5 s
Seals Fluorinated rubber (FKM)
Safety switch housing reinforced thermoplastic
Actuating force 26 N
Mechanical life 1 x 10⁶
Installation orientation any
Switching frequency max. 0.25 Hz
Overtravel 2 mm
Shock and vibration resistance according to EN IEC 60947-5-3
Ambient temperature
at UB = 24V DC -20 ... +60 °C
Locking force Fmax 1300 N
Locking force FZh 1000 N
Guard locking principle BiState

Reliability values acc. to EN ISO 13849-1

Mission time 20 y
Control of guard locking
Category 3
Performance Level PL d
PFHD 1.03 x 10 -7
Monitoring of guard locking
Category 4
Performance Level PL e
PFHD 4.52 x 10 -9


The following applies to the approval according to UL Operation only with UL Class 2 power supply or equivalent measures; see operating instructions



Complete package

Download all important documents with a single click.


  • The operating instructions and any additions to the operating instructions or brief instructions
  • Any data sheets to supplement the operating instructions
  • The declaration of conformity
Download complete package (ZIP, 6,4 MB)

Single Documents

Other Documents

Ordering data

Rend. sz. 165517
Articlename CTM-LBI-BR-M-AZ-SA-165517
Weight 0,26kg
Customsclass 85365019

Műszaki támogatás

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

EUCHNER Magyarország Kft.
+36 1919 0855