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Home>SIEMENS>Siemens 6ES7288-2QR16-0AA0 | S7-200 SMART QR16 Relay Output Module
Siemens 6ES7288-2QR16-0AA0 | S7-200 SMART QR16 Relay Output Module

Siemens 6ES7288-2QR16-0AA0 | S7-200 SMART QR16 Relay Output Module Item NO.: 2926375

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Product Name Siemens 6ES7288-2QR16-0AA0 | S7-200 SMART QR16 Relay Output Module
Item NO. 2926375
Weight 0.1 kg = 0.2205 lb = 3.5274 oz
Category SIEMENS
Brand SIEMENS
Creation Time 2026-10-23

Siemens 6ES7288-2QR16-0AA0 | S7-200 SMART QR16 Relay Output Module

Siemens · SIMATIC S7-200 SMART

Siemens 6ES7288-2QR16-0AA0 | S7-200 SMART QR16 Relay Output Module

SECTION 01

Product Overview

Siemens 6ES7288-2QR16-0AA0 is a SIMATIC S7-200 SMART relay output expansion module with sixteen dry-contact channels. It adds externally powered AC or DC load switching to a compatible CPU without adding input channels.

Four isolated common groups organize the outputs on Siemens 6ES7288-2QR16-0AA0. Every point is rated to 2 A and each common to 8 A across a 5 to 30 V DC or 5 to 250 V AC load range, so group totals are evaluated alongside individual loads.

Mechanical switching defines the operating behavior of Siemens 6ES7288-2QR16-0AA0. Turn-on and turn-off times are up to 10 ms, mechanical life is ten million cycles and electrical life is rated at one hundred thousand cycles with a resistive load, while overload protection remains external.

SECTION 02

Product Data

Technical dossier Confirmed model-specific values
Brand Siemens
Model 6ES7288-2QR16-0AA0
Product Name EM QR16 digital relay output module
Country Germany
Dimensions (W × H × D) 45 × 100 × 81 mm
Weight 221 g
Power Dissipation 4.5 W
Signal-Module Bus Current 110 mA
24 V Current 150 mA with all relays on
Relay Outputs 16 dry-contact channels
Load Voltage 5–30 V DC or 5–250 V AC
Output Current 2 A per point; 8 A per common
Isolation Groups 4
Switching Time 10 ms maximum on / off
Mechanical Life 10 million cycles
SECTION 03

Product Functions

Siemens 6ES7288-2QR16-0AA0 divides sixteen independent relay points among four commons so separate load circuits can be planned deliberately.

External energy path›Per-point capacity›Group separation
01

External energy path

Each relay closes a field circuit whose voltage comes from the supply wired to that group's common.

02

Per-point capacity

One output remains within 2 A even when the group total is below its 8 A common limit.

03

Group separation

The four commons allow different compatible load sections while preventing all sixteen points from sharing one undifferentiated conductor.

SECTION 04

Operating Characteristics

Siemens 6ES7288-2QR16-0AA0 combines configurable controller behavior with the physical limits of mechanical contacts.

01

STOP-state choice

The project determines whether each channel turns off or applies a substitute state when the CPU enters STOP.

02

Mechanical cycle limit

Contact operation accumulates with every transition, so frequent switching consumes life even at modest current.

03

Electrical duty effect

Load type, inrush and suppression influence electrical life and are considered separately from the ten-million-cycle mechanical figure.

SECTION 05

Questions About This Product

Why do all outputs in one group fail on Siemens 6ES7288-2QR16-0AA0?

Check the corresponding common supply and its fuse on Siemens 6ES7288-2QR16-0AA0 before testing individual relays. A lost common interrupts every point in that group even though channel status indications can still follow the program.

How should Siemens 6ES7288-2QR16-0AA0 be protected when switching contactor coils?

Fit suppression appropriate to the coil voltage and circuit type at the load controlled by Siemens 6ES7288-2QR16-0AA0. Add branch protection sized for the conductors and load because the module does not provide electronic overload protection.

Why does a lamp load shorten contact life on Siemens 6ES7288-2QR16-0AA0?

Cold-lamp inrush can be far higher than steady current at Siemens 6ES7288-2QR16-0AA0. Evaluate the actual switching surge against the relay duty rather than selecting the channel only from the running wattage.

Can Siemens 6ES7288-2QR16-0AA0 switch one AC group and one DC group?

The isolated commons on Siemens 6ES7288-2QR16-0AA0 allow separate compatible circuits when panel separation and ratings are maintained. Keep each common dedicated to its intended source and never mix voltages within one group.

Why does Siemens 6ES7288-2QR16-0AA0 respond too slowly for a pulse application?

Siemens 6ES7288-2QR16-0AA0 uses mechanical relays with switching times up to 10 ms. Select a suitable transistor output for high-frequency pulses rather than attempting to compensate for relay delay in software.

What should be confirmed before changing the STOP behavior of Siemens 6ES7288-2QR16-0AA0?

Review the safe de-energized and substitute state required by every connected load on Siemens 6ES7288-2QR16-0AA0. Then test the configured transition under controlled conditions because output state during STOP affects real external circuits.

SECTION 06

Obsolete Parts Support

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The original identifier remains preserved while available commercial information is reviewed; alternatives are not assumed without a confirmed model relationship.

Legacy referencesOriginal string retained
No silent substituteAlternatives not assumed
Multi-brand reviewSeveral control families
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SECTION 08

Contact Information

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