Home > Products > SIEMENS > SIMATIC S7 Series
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Complete model
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6ES7522-5HH00-0AB0
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Product family
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SIMATIC S7-1500 / ET 200MP SM 522
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Product type
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DQ 16x230 V AC/2 A ST relay output module
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Hardware status
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FS02 or later
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Firmware version
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V1.1.0
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Supply voltage
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24 V DC; permissible range 20.4 to 28.8 V
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Current consumption
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185 mA maximum
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Backplane bus power
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0.8 W
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Power loss
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5 W typical
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Digital outputs
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16 relay outputs in groups of 2
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Output voltage range
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24 to 120 V DC or 24 to 230 V AC
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Output current
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2 A per channel maximum
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Group current
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4 A per group maximum
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Module current
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32 A maximum; observe manual limits
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Switching frequency
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1 Hz resistive or lamp load; 0.5 Hz inductive load
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Cable length
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1,000 m shielded; 600 m unshielded
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Diagnostics
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Supply-voltage monitoring and diagnostic alarm
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Safety-oriented shutdown
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Supports load-group shutdown up to SIL 1 and Category 2 / PL c
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Protection / isolation
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Channels isolated from backplane bus and load voltage
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Operating temperature
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-25 to 60 deg C horizontal; -25 to 40 deg C vertical
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Dimensions
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35 x 147 x 129 mm (W x H x D)
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Weight
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Approximately 350 g
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Front connector
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Not included; screw or push-in connector ordered separately
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Engineering
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TIA Portal V13 SP1 or later
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Relay outputs
Sixteen relay channels are arranged in electrically separated groups of two.
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Switching cycle counter
Each integrated relay supports an operating cycle counter from firmware V1.1.0.
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Substitute value
Substitute output values can be configured for controller or communication faults.
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Load-group shutdown
The module supports safety-oriented shutdown of load groups up to SIL 1 and Category 2 / PL c.
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Coil supply
The relay coil supply uses 24 V DC within a 20.4 to 28.8 V range.
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Output circuits
Contacts switch 24 to 120 V DC or 24 to 230 V AC loads.
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Channel grouping
Sixteen outputs are arranged in groups of two; different phases are permitted.
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Front connection
A screw-terminal or push-in front connector must be ordered separately.
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Supply monitoring
The module monitors its 24 V DC supply and can issue a diagnostic alarm.
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Status indication
RUN, ERROR, MAINT, PWR, channel status, and module diagnostic LEDs are provided.
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Channel diagnostics
Wire-break and short-circuit diagnostics are not provided.
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Isolation
Channel groups are isolated from the backplane bus and supply; type-test voltage is 3,100 V DC.
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Module dimensions
35 x 147 x 129 mm; approximate weight 350 g.
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Included part
A U-connector is included; the front connector is not included.
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Mounting orientation
-25 to 60 deg C horizontally and -25 to 40 deg C vertically.
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Load planning
Observe 2 A per channel, 4 A per group, cable ratings, and external B10 or B16 protection.
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Q1. How can I verify that the quoted item is exactly 6ES7522-5HH00-0AB0?
Match the complete order number on the quotation, label, packaging, and invoice. Confirm DQ 16x230 V AC/2 A ST, relay outputs, FS02 or later, 16 channels, and the 35 mm module width.
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Q2. How can I distinguish a new relay output module from a used or refurbished unit?
Request current photos of the Siemens label, housing, front-door area, terminal contacts, rail latch, and packaging. Look for terminal marks, scratched contacts, relay-use signs, replaced labels, or resealing.
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Q3. How should a buyer verify that the supplier is legitimate and reliable?
Verify the supplier legal name, registration, address, contact details, and bank beneficiary. Request references for S7-1500 output modules and ensure every commercial document states 6ES7522-5HH00-0AB0.
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Q4. Which specifications should an engineer verify before purchasing?
Confirm 24 V DC coil supply, 16 relay outputs, 24 to 230 V AC or 24 to 120 V DC load range, 2 A per channel, 4 A per group, grouping by two, front-connector type, and 35 x 147 x 129 mm dimensions.
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Q5. What physical evidence should be requested before payment?
Request timestamped photos or video showing the full 6ES7522-5HH00-0AB0 label, housing, terminal area, included U-connector, package seals, and whether the separately ordered front connector is included in the offer.
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Q6. Can a similar SM 522 suffix replace 6ES7522-5HH00-0AB0?
Not automatically. A different suffix can change relay or semiconductor output type, voltage, channel count, current, grouping, diagnostics, and safety-oriented shutdown behavior. Engineering must approve the wiring and load ratings.
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