Motorized Change-Over Switches OTM_F_C_

Contents

• Mounting and dimensional drawings
• Mounting positions
• Control circuit
• Manual operation: Local
• Electrical operation: Remote
• Automatic operation
• Impulse control
• Continuous control
• Locking
• Locking state information
• Technical data
• Terminal clamp sets: OZX_
• Bridging bars: OMZC_
• Terminal shrouds: OTS_
• Auxiliary contact blocks: OA_
• Handle storage: OTVS0_
• Fourth pole: OTP_

Mounting and dimensional drawings

The following diagrams illustrate the mounting and dimensional details for OTM40, OTM63-125, and OTM30-125F_C_ models.

OTM40 / OTM63-125

Dimensions:

• M4 screw size
• Torque: 3 Nm (26.6 lb.in.)
• Hole diameter: Ø 4.5 mm (0.18 in.)
• Height: 90 mm
• Mounting standard: EN 50022
• Widths: 56 mm, 12 mm, 56 mm, 12 mm, 80 mm

Note: Use protection against direct contact. For example, a 4 mm cover with 6 Nm torque.

OTM30-125F_C_

Dimensions:

• Main body width: 115 mm
• Height: 108 mm
• Depth: 52 mm
• Hole diameter: Ø 4.5 mm
• Mounting hole spacing: 40 mm
• Handle dimensions: 22.5 mm
• Overall dimensions (3-pole): 230 mm
• Overall dimensions (4-pole): 283 mm
• Mounting standard: EN 50022
• Side dimensions: 26.5 mm, 12 mm, 14 mm, 65 mm, 12 mm, 16 mm
• Top/bottom dimensions: 116 mm, 99 mm, 83 mm, 75 mm, 10 mm, 45-60 mm, 35 mm, 6.5 mm, 44 mm, 74.5 mm, 35 mm

Removal Diagram: Shows a three-step process (1, 2, 3) for removing a component.

Mounting positions

The motorized switches can be mounted in different positions, as illustrated in the diagrams.

Control Circuit

Warning: Only an authorized electrician may perform electrical installation and maintenance. Ensure the switch is de-energized before starting work.

The control circuit utilizes terminals for various functions:

• Terminal 1: For motor operator voltage supply.
• Terminal 2: For control terminals for push buttons.
• Terminal 3: For state information (also used with automatic control units).
• Terminal 4: For automatic control unit (e.g., OMD controller).

Note: Do not apply power to the control terminal; use the correct terminal for power supply.

Diagrams show different wiring configurations for control circuits, including terminals for push buttons and automatic control units.

Manual operation: Local

Manual operation is performed using the handle. Electrical operation is prevented when the handle is attached to the switch panel.

Diagrams show the handle being attached (1 - CLICK!) and operated.

Electrical operation: Remote

Warning:

• Never open covers; dangerous external control voltages may be present even when the voltage is off.
• Never handle control cables when the motorized switch or external control circuits are connected to voltage.
• Exercise sufficient caution when handling the unit.

Diagrams illustrate remote electrical operation with different wiring and fuse configurations.

Automatic operation

The switch can be operated automatically, typically in conjunction with OMD controllers. Refer to OMD user manuals for detailed installation instructions.

Diagrams show the connection for automatic operation and the process for resetting the fuse.

Resetting Fuse

Diagrams illustrate the procedure for resetting the fuse, showing the location of the 'Fuse Reset' button.

Impulse control

This mode allows for impulse commands to change the switch position. Commands are typically longer than 100 ms.

Diagrams show the timing for I-command, II-command, and 0-command, illustrating the switch's response in terms of position changes.

Note: If a new command is given before the switch reaches the previous position, internal protection may operate.

Continuous control

This mode allows for continuous commands to change the switch position.

Diagrams show the timing for I-command, II-command, and 0-command, illustrating the switch's response in terms of position changes.

Locking

Warning: Prevent manual and electrical operation. Locking is possible at any position. Check the position before locking.

Diagrams show the process of locking the switch using a padlock with a diameter of Ø4...5mm.

State information

Diagrams illustrate the different states of the switch (OFF, ON) and their corresponding terminal configurations and indicator lights (e.g., green for ON, red for OFF).

Technical data

Motor operator, control circuit:

• Rated operational voltage U [V]: 110-240 Vac/dc, 50-60Hz
• Operating voltage range: 0.85...1.1 x U
• Operating angle: 90° (0-1, 1-0, 0-II, II-0); 180° (1-0-II)
• Operating time: See Table 2
• Protection degree: IP 20, front panel
• Rated impulse withstand voltage Uimp: 4 kV
• Voltage supply: PEN L
• F2: Max. MCB 16A
• Control terminal for the push-buttons: C1 I 0
• Maximum cable length: 100 m

Terminal for state information:

• 1, 2, 3, 4
• Common, voltage supply: 1
• Position of change-over switch I: 2
• Position of change-over switch II: 3
• Handle attached or motor operator locked: 4
• SCPD: Max. MCB C2A

Control terminal for automatic control unit (If used OMD controller):

• Common, voltage supply from motor operator: 1
• Close switch I or open switch II: 2
• Close switch II or open switch I: 3

Operating temperature: -25... +55 °C

Transportation and storage temperature: -40... +70 °C

Altitude: Max. 2000m

Table 1: General technical data of motor operators

Table 2: Specified technical data of motor operators

Note: a) Under nominal conditions

Terminal clamp sets: OZX_

These sets are used for connecting cables to the motorized switches.

OZX_

• OZXL1: For cable sizes 10...70 mm² (8...2/0 AWG).
• OZXT1, OZXT2, OZXT3, OZXT6: Various terminal types for different connections.
• Torque: 6 Nm (55 lb.-in.)
• Hole size: 4 mm (0.16 in.)

OTM63-125F_C: Uses OZXT2, OZXT3.

Diagrams show the installation of OZXL1 and OZXT terminals.

Bridging bars: OMZC_

These bars are used for creating electrical connections between terminals.

OMZC03, OMZC003: For cable sizes 10...70mm² (8...2/0AWG).

OMZC04, OMZC004: For cable sizes 2.5...25mm² (14...4 AWG) and 2x2.5...16mm² (2x14...6 AWG).

Diagrams show the application of OMZC bars with different switch models (OTM40-125F_C, OTM40F_C).

Terminal shrouds: OTS_

These shrouds provide protection for the terminals.

Diagrams show the installation of OTS125T3 and OTS125T1 terminal shrouds on the switches.

Compatibility:

• OMZC03, OMZC003 use OTS125T3.
• OMZC04, OMZC004 use OTS125T3 + OTS125T1.

Auxiliary contact blocks: OA_

These blocks provide additional signaling and control functions.

OA_ blocks have NO (Normally Open) and NC (Normally Closed) contacts.

Types: OA 7G10, OA 1G01, OA 1G10, OA 8G01, OA2G11.

Installation: Diagrams show how to attach auxiliary contact blocks (max 2 per switch) to the OTM switches. OA2G11 is for 3-pole versions only.

Torque: 0.8 Nm (7 lb.-in.) for M3.5 screws.

Handle storage: OTVS0_

This accessory allows for storing the manual operation handle when not in use.

Diagrams show the attachment of the handle to the OTVS0 storage unit.

Fourth pole: OTP_

This accessory adds a fourth pole to the switch configuration.

Models: OTP860FP, OTPL60FP, OTPN60FP, OTPE60FP for OTM40; OTP8125FP, OTPL125FP, OTPN125FP, OTPE125FP for OTM63-125.

OTPD60FP / OTPD125FP are also mentioned.

Wiring examples are shown for different configurations, including neutral (N) and protective earth (PE) connections.

Cable sizes:

• OTM63-125: 10...70mm² (8...2/0 AWG)
• OTM40: 2.5...25mm² (14...4 AWG), 2 x 2.5-16mm² (2 x 14...6 AWG)

Diagrams show the installation of the fourth pole accessory.