Siemens 6EP1961-2BA21

Brand: Siemens
Model: 6EP1961-2BA21

Inventory situation: Goods are available in stock.

Product features

Siemens 6EP1961-2BA21 is a high-quality selectivity module in the Siemens SITOP PSE200U series. The Siemens 6EP1961-2BA21 features four separate output channels, making it suitable for a variety of power supply requirements. The input voltage varies from 22V DC to 30V DC, with a rated input voltage of 24V DC, and the maximum input current is 40A. Each output channel of the Siemens 6EP1961-2BA21 can provide a rated current of 10A when the ambient temperature is up to 60°C, and the current of each channel can be changed between 3A and 10A using a potentiometer. Because of its flexibility, the Siemens 6EP1961-2BA21 4-channel selective module is appropriate for a wide range of industrial devices that require varying current supply.

The Siemens 6EP1961-2BA21 places a high priority on safety. It features several protective capabilities, including overload, short-circuit, and overvoltage protection. When the output current reaches 1.0 to 1.5 times the set value, the module will turn off the problematic channel after approximately 5 seconds to prevent equipment damage. It can also withstand 35V DC overvoltage for 100ms, keeping the module and its attached devices safe. The Siemens 6EP1961-2BA21 24V DC power protection module also features channel isolation, which ensures that problems in one channel do not influence other normal channels.

The Siemens 6EP1961-2BA21 is appropriate for a wide range of industrial applications. It works normally at temperatures ranging from -25°C to 60°C and can be stored at -40°C to 85°C. It can also work in settings with relative humidity ranging from 5% to 95% without condensation and at altitudes of up to 2000m without compromising performance. This makes the Siemens 6EP1961-2BA21 industrial automation module appropriate for most industrial applications, including factory automation, PLC control systems, process control systems, and robot motion control.

Specifications

Model	6EP1961-2BA21
Product Name	SITOP PSE200U 10A Selective Module
Product Series	SITOP PSE200U
Input Voltage Range	22-30V DC
Number of Output Channels	4 independent channels
Rated Current per Channel	10A
Total Output Current	40A (4×10A)
Efficiency	Approx. 99%

Application scenarios

Factory automation is one of Siemens 6EP1961-2BA21's most prevalent uses. Many machines and equipment in large industries (such as assembly line machines, packing machines, and conveyor belts) require a constant 24V DC power supply. Siemens 6EP1961-2BA21 distributes and monitors load current over many branches, promptly detecting overloads or short circuits. It can withstand short-term current peaks induced by inrush current, avoiding erroneous shutdowns and keeping the production line running smoothly. Siemens 6EP1961-2BA21 is an effective 24V DC power protection solution for enterprises that require continuous operation.

Siemens 6EP1961-2BA21 is also commonly used in PLC and DCS control systems, which are considered the "brains" of industrial automation. These control systems require consistent and safe electricity to convey precise messages to other equipment. Siemens 6EP1961-2BA21's adjustable current (3-10A per channel) and dependable protection functions make it ideal for connecting various components in PLC and DCS systems, including sensors, relays, and push buttons. It works well with Siemens SITOP power supply, guaranteeing that the entire control system runs smoothly and without errors caused by power outages. Many factories utilize Siemens 6EP1961-2BA21 to secure their PLC control systems, making it a reliable Siemens 6EP1961-2BA21 industrial module.

FAQ

Q: What is the Siemens 6EP1961-2BA21, and what is its primary function?

A: The Siemens 6EP1961-2BA21 is a single-phase, 24V DC industrial power supply unit. As a member of the SITOP PSU100M family, its principal role is to convert conventional single-phase AC line voltage (e.g., 120V/230V) to a stable and regulated 24V DC voltage. This clean DC power is required for the reliable operation of a wide range of industrial automation components, including SIMATIC PLCs (such as the S7-1200 and S7-1500), sensors, relays, industrial communication modules, and other control cabinet electronics.

Q: What is "selective" shutdown, and why is it important?

A: Selective shutdown, also known as selectivity, happens when a failure occurs on a single circuit and only the protection mechanism for that circuit activates. The Siemens 6EP1961-2BA21 selectivity module ensures that a fault in any of its four outputs does not cause the entire power supply to fail. This pinpoints the problem, speeds up on-site debugging via LED indicators, and keeps the rest of the machine or line operational.

Q: How do I configure the current threshold and response time?

A: Each of the four channels has a potentiometer that allows you to define an individual overload threshold ranging from 3 to 10A. In addition, the module frequently has a DIP switch to regulate the startup delay time for the outputs (e.g., sequential startup), which aids in managing total inrush current while powering numerous loads. These settings are protected from unintentional alterations by a transparent, sealable cover.