BTA20.4-ND-BM-VB-BS

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The BTA20.4-ND-BM-VB-BS is a rotary cam switch with a black knob actuator and a voltage rating of 690V AC. Manufactured by Bosch Rexroth Indramat under the BTA20 Machine Control Boards series, it features a panel depth of 66mm. This switch ensures IP65 ingress protection (front) and operates between -25°C to +55°C.

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Product Description:

The Bosch Rexroth Indramat BTA20.4-ND-BM-VB-BS is a superior quality rotary cam switch within the range of BTA20 of machine control boards.

It is applicable in power switching that is safe and reliable to minimize power stress on the industry. Designed using DIN rail mount, this four-pole switch has a voltage rating of 690 volts AC and 20 amperes, which makes it appropriate in the application of medium-voltage control. It works at standard industrial rates of 50/60 Hz and has screw terminals to make sure the electrical connection is safe. Actuation of the switch is done using a long life black knob which is mounted on a front plate of 45x45 mm, with a depth of the panel being 66 mm. This is a small but easy to use design, even where space is not that large such as control cabinets. On the front face it has an ingress protection rating of IP65, making it resistant to dust, and low-pressure water jets, which means it can be safely used in a harsh industrial setting.

This model is compatible with the IEC/EN 60947-3 specification and is therefore safe, reliable and internationally compatible. It has excellent mechanical durability; it has a lifecycle up to 1,000,000 operations, so it is by far a reliable option in switching frequently. The temperature of operation of the switch is -25°C to +55°C, making it apt to work around numerous environmental temperatures. It has a configurable enabling circuit and emergency stop (E-STOP) as an added feature. It has the use of two E-STOP, three enabling circuit options selectively configurable in either left or right slot with flexibility and machine safety.

Actuator Type
Black Knob
Configurable Emergency Stop Circuits
Two E‑STOP and three enabling circuits, selectable left/right slot
Current Rating
20A
Frequency
50/60 Hz
Front Plate Size
45x45mm
Ingress Protection
IP65 (Front)
Mechanical Endurance
1,000,000 operations
Mounting Type
DIN Rail
Operating Temperature
-25°C to +55°C
Panel Depth
66mm
Poles
4
Standard Compliance
IEC/EN 60947-3
Switch Type
Rotary Cam Switch
Terminal Type
Screw Terminal
Voltage Rating
690V AC
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Frequently Asked Questions about BTA20.4-ND-BM-VB-BS:

Q: What type of switch is the BTA20.4-ND-BM-VB-BS?

A: It is a 4-pole rotary cam switch designed for medium-voltage power switching applications in industrial control systems.

Q: How is the BTA20.4-ND-BM-VB-BS installed and operated?

A: The switch is DIN rail mounted and actuated using a durable black knob located on a 45x45 mm front plate, offering easy operation in compact spaces.

Q: What environmental conditions can the BTA20.4-ND-BM-VB-BS operate in?

A: It operates reliably within a temperature range of -25°C to +55°C and features IP65 front protection against dust and water jets.

Q: Does the BTA20.4-ND-BM-VB-BS support safety functions?

A: Yes, it includes configurable enabling circuits and up to two E-STOP functions, enhancing flexibility and safety in machine control environments.

Q: What standards does the BTA20.4-ND-BM-VB-BS comply with?

A: The switch meets IEC/EN 60947-3 standards, ensuring international compliance for use in industrial electrical systems.


Internal Product Review

  • ‘‘The BTA20.4-ND-BM-VB-BS from Bosch Rexroth Indramat offers a compact and reliable solution for power switching in control cabinets. Its ergonomic design, durability, and integrated safety features make it a trusted choice for industrial automation setups.’’

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