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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RW4036-1BB04 |
| Alternative Part Number | 3RW40361BB04 |
| Manufacturer | Siemens |
| Category | Soft Starts |
| Operational Voltage Range | 200 to 480 V ac |
| Control Supply Voltage | 24 V AC/DC |
| Operational Current at 40°C | 45 A |
| Operational Current at 50°C | 42 A |
| Operational Current at 60°C | 39 A |
| Mechanical Performance at 400 V | 22 kW |
| Operating Frequency | 50 ... 60 Hz |
| Insulation Voltage Rated Value | 600 V |
| Degree of Pollution | 3, according to IEC 60947-4-2 |
| Reference Code | Q (according to EN 61346-2) |
| Width | 55 mm |
| Height | 160 mm |
| Depth | 170 mm |
| Mounting Position | Vertical mounting surface +/-90° rotatable, +/- 22.5° tiltable |
| Required Spacing for Mounting | Upwards: 60 mm, At the side: 30 mm, Downwards: 40 mm |
| Wire Length Maximum | 300 m |
| Number of Poles for Main Circuit | 3 |
| Type of Electrical Connection | Screw-type terminals for main and auxiliary/control circuit |
| Number of Auxiliary Contacts | 2 NO contacts, 1 CO contact |
| Ambient Operating Temperature Range | -25 ... +60 °C |
| Storage Temperature Range | -40 ... +80 °C |
| Derating Temperature | 40 °C |
| Protection Class | IP20 on the front according to IEC 60529 |
| Touch Protection | Finger-safe, for vertical contact from the front according to IEC 60529 |
| Installation Altitude | Up to 5,000 m above sea level |
| Environmental Category | During operation: 3K6, 3C3, 3S2, 3M6 (according to IEC 60721) |
| Integrated Bypass Contact System | Yes |
| Thyristors | Yes |
| Intrinsic Device Protection | Yes |
| Motor Overload Protection | Yes |
| Adjustable Current Limitation | Yes |
| Commodity Code | 85371098 |
The Siemens 3RW4036-1BB04 soft starter is a compact and efficient solution designed to optimise the start-up process of three-phase motors. This device is engineered to reduce the inrush current and limit torque, ensuring a smooth acceleration that minimises mechanical stress and electrical peak loads. With a rated operational current of 45 A at 40°C and the capability to handle motors up to 22 kW at 400 V in a standard circuit, it is a robust choice for a variety of industrial applications.
Featuring an integrated bypass contact system and thyristors, the 3RW4036-1BB04 offers intrinsic device protection and motor overload protection without the need for additional components. The absence of an evaluation of thermistor motor protection allows for straightforward integration into existing systems. The soft starter also provides an external reset function and adjustable current limitation for enhanced control over motor starts.
Constructed with a width of 55 mm, a height of 160 mm, and a depth of 170 mm, this soft starter is designed for space-saving installation and can be mounted using screws or snap-on mounting. It supports a wide operating voltage range of 200 to 480 V AC and has a control supply voltage of 24 V AC/DC, making it versatile for global applications.
The 3RW4036-1BB04 is equipped with screw-type terminals for both the main current circuit and auxiliary and control circuits, ensuring secure and reliable connections. It also features two normally open contacts and one changeover contact for auxiliary functions.
This soft starter is suitable for use in a variety of environments, with an ambient operating temperature range of -25 to +60°C and an installation altitude of up to 5,000 meters above sea level. It is designed with a protection class of IP20 on the front, providing finger-safe touch protection.
Ideal for industries looking to enhance their motor control and reduce wear on mechanical components, the Siemens 3RW4036-1BB04 soft starter is a dependable and practical choice for managing the demands of modern motor starting applications.
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Frequently Asked Questions
What is the purpose of a soft starter?
A soft starter is designed to control the acceleration of an electric motor by reducing the applied voltage. This helps to decrease the mechanical stress on the motor and the electrodynamic stresses on the attached power cables and electrical distribution network, extending the lifespan of the system.
Can this soft starter be used with three-phase motors?
Yes, the Siemens 3RW4036-1BB04 is specifically designed for use with three-phase motors, providing smooth start and stop operations to reduce mechanical stress.
What are the voltage requirements for this soft starter?
The operational voltage range for this soft starter is 200 to 480 V ac, making it suitable for a variety of industrial applications.
Is there an integrated bypass contact system in this soft starter?
Yes, the Siemens 3RW4036-1BB04 includes an integrated bypass contact system, which helps to reduce power loss and heat generation once the motor reaches full speed.
Does this soft starter offer motor overload protection?
Yes, intrinsic device protection and motor overload protection are built into the soft starter to ensure safe operation and prevent damage to the motor.
What is the rated operational current of this soft starter?
The rated operational current at 40°C is 45 A for this soft starter.
Can the current limitation be adjusted on this soft starter?
Yes, the Siemens 3RW4036-1BB04 allows for adjustable current limitation, providing flexibility and control over the starting current of the motor.
What is the control supply voltage for this soft starter?
The control supply voltage for this soft starter is 24 V, with the option for both AC and DC supply.
What are the dimensions of this soft starter?
The dimensions of the Siemens 3RW4036-1BB04 are 55 mm in width, 160 mm in height, and 170 mm in depth.
What type of terminals does this soft starter have for electrical connections?
This soft starter features screw-type terminals for both the main current circuit and the auxiliary and control circuit.
What is the ambient operating temperature range for this soft starter?
The ambient operating temperature range for this soft starter is from -25°C to +60°C.
What is the protection class of the front of this soft starter?
The front of the Siemens 3RW4036-1BB04 has a protection class of IP20, ensuring finger-safe touch protection.
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