Notes Switch travel diagram
  Contact closed
  Contact open
  Setting range
  Break point
  Positive opening sequence/- angle
VS  adjustable range of NO contact
  adjustable range of NC contact
N   after travel
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• 2 cable entries M 20 x 1.5
• Mounting details to EN 50047
• Thermoplastic enclosure
• Double-insulated
• 58 mm x 50,5 mm x 31 mm
• Good resistance to oil and petroleum spirit
• Wide range of alternative actuators
• Actuator heads can be repositioned by 4 x 90°
• Lever angle adjustable in 10° steps

Ordering details
Product type descriptionTV12H 256-20ZH - Ordering suffix
Article number101145197
EAN Code4030661136646
StandardsISO 13849-1
Mission time20 Years
Global Properties
Permanent lightT 256 Rollenschwenkhebel 12H
StandardsIEC 60947-5-1, ISO 13849-1, BG-GS-ET-15
Compliance with the Directives (Y/N) Yes
Suitable for safety functions (Y/N)No
Actuator typeA to EN 50047
- Material of the housingsPlastic, glass-fibre reinforced thermoplastic, self-extinguishing
- Lever materialMetal film
- Roller materialPlastic
- Material of the contactsSilver
Housing coatingNone
Housing construction formNorm construction design
Mechanical data
Design of electrical connectionScrew connection
Cable section
- Min. Cable section0,75
- Max. Cable section2.5
Mechanical life20.000.000 operations
Switching frequencymax. 5000 /h
noticeAll indications about the cable section are including the conductor ferrules.
Design of actuating elementRoller lever
actuating torquemin. 15 Ncm
Bounce durationin accordance with actuating speed
Switchover timein accordance with actuating speed
Positive break torque18.5 Ncm
Actuating speed with actuating angle 30° to switch axis
- Min. Actuating speed4122 mm/min
- Max. Actuating speed1 m/s
Ambient conditions
Ambient temperature
- Min. environmental temperature−30 °C
- Max. environmental temperature+80 °C
Protection classIP67
Electrical data
Design of control elementNormally open contact (NO)
Switching principleSlow action with staggered contacts
Number of auxiliary contacts2
Number of safety contacts0
Rated impulse withstand voltage Uimp6 kV
Rated insulation voltage Ui500 V
Thermal test current Ithe10 A
Utilisation categoryAC-15: 230 V / 4 A,
DC-13: 24 V / 1 A
Required rated short-circuit current1000 A
Max. fuse rating6 A gG D-fuse
Dimensions of the sensor
- Width of sensor58 mm
- Height of sensor97.5 mm
- Length of sensor46 mm
Switch with 2 NO contacts are not for security tasks

Note Diagram
  positive break NC contact
  no active
  Normally-open contact
  Normally-closed contact
Switch travel diagram

Notes Switch travel diagram
  Contact closed
  Contact open
  Setting range
  Break point
  Positive opening sequence/- angle
VS  adjustable range of NO contact
  adjustable range of NC contact
N   after travel
Ordering suffix
The applicable ordering suffix is added at the end of the part number of the safety switch.
Order example: TV12H 256-20zh-1637
...-1637 0,3 µm gold-plated contacts

...-NPT Cable entry NPT 1/2“

...-1297 Enclosure with transverse slotted holes

...-ST M12 connector with A-coding

...-2310 M12 connector with B-coding

...-RMS Available with metal roller

...-Z Actuator head gasket

K.A. Schmersal GmbH & Co. KG, Möddinghofe 30, D-42279 Wuppertal
The data and values have been checked throroughly. Technical modifications and errors excepted.
Generiert am 12.12.2019 - 22:58:40h Kasbase 3.3.0.F.64I