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Siemens 6ES7288-2QR16-0AA0

The Siemens 6ES7288-2QR16-0AA0 is a digital output expansion module for the SIMATIC S7-200 SMART. As a professional supplier of industrial automation, Rayon Automation offers this model in its original stock form to customers worldwide. This module is equipped with 16 built-in relay output channels, each supporting a 2A current output. It can quickly replenish switch control points for the control system without replacing the CPU host, making it highly suitable for controlling AC contactors, solenoid valves, and various field indication devices.

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Product Description

The Siemens 6ES7288-2QR16-0AA0 is an EM QR16 digital output expansion module specifically designed for the SIMATIC S7-200 SMART series. It can provide a stable and cost-effective solution for expanding switch quantities under conditions where the control cabinet space is limited. As an original industrial control component supplier, we offer both in-stock models and a wide range of brands.

Technical Specifications

Specification	Details
Siemens Order Number	Siemens 6ES7288-2QR16-0AA0
Module Classification	S7-200 SMART EM QR16 Digital Output Module
Output Channel Quantity	16-channel Relay Output
Allowed Load Voltage	5 - 30V DC / 5 - 250V AC
Maximum Continuous Working Current	2.0 A / Channel (Resistive Load)
Photoelectric Isolation Voltage Rating	500V AC, Continuous for 1 Minute
Power Consumption	Internal Backplane Bus Consumption is approximately 140mA
Terminal Type	Removable Screw Terminal Block
Dimensions (W x H x D)	70 mm x 100 mm x 81 mm

Core feature

16-channel relay output: The Siemens 6ES7288-2QR16-0AA0 provides 16 independent relay contact outputs, supporting voltage ranges of 24V DC and 120V/240V AC, with a switching current of up to 2A.
High-density design: 16 switch points are integrated within a compact body size, reducing the DIN rail space occupation in the control cabinet.
Isolation protection mechanism: photoelectric isolation and electrical isolation are provided between the output channel and the internal bus circuit to prevent the impact of the external circuit surge on the CPU motherboard.
Backplane bus plug and play: the built-in side bus connector is directly mounted to the right side of the S7-200 SMART CPU host to realize fast configuration and data communication.

Industry application scenarios

Water treatment and municipal water supply systems: Controls multiple groups of water pump contactors, electric valves and dosing pumps through the S7-200 SMART CPU to alternate on and off.
Packaging and automated handling equipment: Controls the cylinder solenoid valves of the sealing and cutting machinery, the starters of the conveyor belt belt machines and the sorting baffles.
Hvac and environmental control: Timed logical switches for cooling tower fans, circulating water pumps, and fresh air units are realized in building control cabinets.
Light INDUSTRY TEXTILE machinery: For multi-station assembly line to provide switch control instructions, driving warning lights and electric heating elements.

Performance and Response Indicators

Under the rated resistive load, the closing and releasing response times of the relay contacts of Siemens 6ES7288-2QR16-0AA0 are both controlled within 10ms. The internal relay has excellent shock resistance performance, with a mechanical life of up to 10 million times and an electrical life of no less than 100,000 times under full load conditions. The module can adapt to the industrial field operating temperature of 0℃ to 55℃, and maintain a robust opening and closing performance in 95% humidity (no condensation).

Why choose Rayon Automation?

1. Real warehouse and spot inventory We have a warehouse where we have in-stock products of Siemens S7-200 SMART, S7-1200, S7-1500 and drive control products. The entire process from warehousing to distribution is traceable.
2. Our professional engineering service team is composed of electrical engineers with over many years of on-site experience in automation. We can handle orders quickly and provide remote troubleshooting support via email or online meetings when encountering configuration errors, channel failures or selection questions.
3. Export packaging and packaging shock-proof standards For international air transportation and long-distance sea transportation, we implement strict shock-proof packaging procedures:
Use original anti-static bags and sealed paper boxes;
Wrap the outer layer with high-density multi-layer bubble cushioning film;
Load into thickened five-layer export paper boxes for international trade;
Bulk goods are packed and reinforced to prevent moisture and fall.

FAQ：

Does the 6ES7288-2QR16-0AA0 module support high-speed pulse output?
No. The relay output type has limited response speed (about 10ms) and cannot be used for high-speed pulse control of servo or stepper motors.
Is hot swapping supported during operation?
No. The CPU and expansion module power supplies must be turned off; otherwise, the backplane bus circuit may be damaged.
What are the differences in wiring between the relay output module and the transistor output module?
The relay output (QR16) is a dry contact output and does not distinguish the current direction. It can be connected to either DC power supply or AC power supply; The transistor output (QT16) can only be connected to DC 24V DC power supply, and the connection needs to distinguish between positive and negative polarity.