178B3435

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The 178B3435 drive offers a supply voltage range of 3 x 200-600 V (unit dependent), a supply frequency of 48-62 Hz ±1%, and an output frequency up to 1000 Hz (model dependent). Belonging to the VLT 6000 HVAC Drives series by Danfoss, it delivers a starting torque of 110% and a power factor of 0.90/1.0 at rated load.

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Product Description:

The Danfoss creates this 178B3435 AC drive which is engineered for short-circuit protection and current limits that safeguard the motor from electrical damage. The designer company is recognized for its creative and eco-friendly solutions in various industries.

The 178B3435 AC drive functions within an ambient temperature range of 45°C to 55°C by making it suitable for use in areas with high-temperature conditions. The 178B3435 points to the model number VLT4022VT4CN1STR0DLF00A30C0. The relay supports both spans of frequencies as 50 Hz and 60 Hz for system operation. Its maximum wire cross-section is 4 mm² (10 AWG) which assists in providing ample connectivity for varying wire sizes. It uses M3 screws to make the connections precise and secure to have a stable installation. It reduces the installation torque required from 0.5-0.6 Nm to install without over-tightening and provides optimal contact integrity. The unit is made to support relay output voltage up to 240 V AC at 2 Amps current and 24 V DC at 10 mA / 24 V AC required for 100 mA. This makes it compatible with many control circuits.

The 178B3435 AC drive has a switching rate of about one switch every 2 minutes which makes it ideal for applications that need switching after some period of time. It is equipped with a short-circuit current capacity of 100,000 A and has a greater protection level against electrical surges. The unit includes infinite switching cycles of output which increases its durability and dependability in a continuous-duty application. It contains a ramp time that can be set from 1 to 3600 seconds permitting the gradual acceleration or deceleration of the connected gear.

Analog Input (current)
0/4–20 mA (scalable, 1 channel)
Analog Input (voltage)
0–10 V DC (scalable, 2 channels)
Digital Inputs
8 programmable, 0–24 V DC (PNP)
Max Short Circuit Current
100,000 A
Output Frequency (general)
0–120 Hz, 0–1000 Hz (model dependent)
Output Voltage
0–100% of supply voltage
Overload Torque
110%
Power Factor (cos φ)
0.90/1.0 at rated load
Ramp Time
1–3600 sec
Starting Torque
110% for 1 min
Supply Frequency
48-62 Hz ±1%
Supply Voltage (200-240 V Units)
3 x 200/208/220/230/240 V ±10%
Supply Voltage (380-460 V Units)
3 x 380/400/415/440/460 V ±10%
Supply Voltage (525-600 V Units)
3 x 525/550/575/600 V ±10%

Frequently Asked Questions about 178B3435:

Q: Which frequency does the Bosch Rexroth 178B3435 support?

A: This model supports both 50 Hz and 60 Hz frequencies, making it compatible with a wide range of industrial applications.

Q: What is the maximum wire cross-section for the Bosch Rexroth 178B3435?

A: The device accommodates a maximum wire cross-section of 4 mm² (10 AWG), providing flexibility for different wiring configurations.

Q: What is the maximum voltage and current capacity for relay output 1?

A: The Relay output 1 can handle a maximum of 240 V AC at 2 Amps, ensuring compatibility with high-power applications.

Q: How many switches are on the supply input of the 178B3435?

A: The supply input typically has one switch, used for controlling L1, L2, or L3 connections.

Q: What is the ramp time range for the Bosch Rexroth 178B3435?

A: The ramp times for the device can be adjusted between 1 and 3600 seconds, providing precise control over motor acceleration and deceleration.


Internal Product Review

  • ‘‘The Danfoss series VLT drive 178B3435 is highly durable and works by supporting up to 240 V AC at 2 Amp. Its wide ambient temperature range and unlimited switching make it suitable for industrial use. It is widely used in HVAC systems and in mechanical setups.’’

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