Read from the product label
- Maker
- Mitsubishi Electric
- Part no.
- QY51PL
- Serial / rev.
- as printed on your unit
Image is for illustrative purposes only. Please refer to product description.
Delivery options
Mitsubishi Electric QY51PL is a MELSEC-Q output module with 32 outputs, transistor output and 12...24 V DC load.
- Manufacturer
- Mitsubishi Electric
- Manufacturer part no.
- QY51PL
- Product family
- Mitsubishi MELSEC-Q I/O Modules
- Type
- Digital output module
- Category
- I/O modules › Digital input and output modules
- Lifecycle
- Phased out
- OEM successor
- Not stated
- Technical datasheet
- Data sheet
Technical specifications
- Manufacturer
- Mitsubishi Electric
- Manufacturer part no.
- QY51PL
- Type
- Digital output module
- Application
- I/O module
- Used with
- MELSEC-Q base units
- Output type
- Transistor output (sink type)
- Number of output points
- 32 points
- Rated load voltage
- 12...24 V DC (+20/-15 %)
- Maximum load current
- 0.5 A/point, 4 A/common
- Maximum inrush current
- Current is limited by the overload protection function.
- Leakage current at OFF
- 0.1 mA or less
- Maximum voltage drop at ON
- 0.2 V DC (TYP.) 0.5 A, 0.3 V DC (MAX.) 0.5 A
- Output response time, OFF to ON
- 0.5 ms or less
- Output response time, ON to OFF
- 1 ms or less (rated load, resistive load)
- Surge suppressor
- Zener diode
- Fuse
- None
- Protection function, Overheat protection function
- Available
- Protection function, Overload protection function
- Available
- External power supply, Voltage
- 12...24 V DC (+20/-15 %) (ripple ratio within 5 %)
- External power supply, Current
- 8 mA/common (at 24 V DC and all points ON)
- Output common terminal arrangement
- 16 points/common
- Isolation method
- Photocoupler
- Dielectric withstand voltage
- 560 V AC rms/3 cycles (altitude 2000 m)
- Insulation resistance
- 10 MΩ or higher by insulation resistance tester
- Operation indication
- ON indication (LED)
- External interface,
- 38-point terminal block connector (terminal block is sold separately)
- Number of occupied I/O points
- 32 points (I/O assignment: Output 32 points)
- Internal current consumption (5 V DC)
- 100 mA (TYP. all points ON)
- External dimensions, Height
- 220 mm
- External dimensions, Width
- 37.5 mm
Show all 33 specificationsShow fewer
- External dimensions, Depth
- 116.5 mm
- Weight
- 0.28 kg
- General specifications
- Refer to the general specifications of the CPU module.
Technical documents (1)
Key features
- Output type: Transistor output (sink type)
- Number of output points: 32 points
- Rated load voltage: 12...24 V DC (+20/-15 %)
- Maximum load current: 0.5 A/point, 4 A/common
- Maximum inrush current: Current is limited by the overload protection function.
About the Mitsubishi Electric QY51PL
The Mitsubishi Electric QY51PL is a MELSEC-Q output module. Mitsubishi Electric's overview: Transistor output: 32 points, 12...24 V DC, 0.5 A/point, 4 A/common, response time: 1 ms, 16 points/common, sink type, 18-point terminal block connector (terminal block sold separately), replacement model: AY41, AY41P, AY51, AY51-S1.
What is the QY51PL used for?
The QY51PL mounts on a MELSEC-Q base unit and connects field signals to the CPU, which reads or writes them each cycle.
Lifecycle and successor
Phased out.
Before you order
What to photograph or confirm so the right unit is quoted.
Check the model name QY51PL on the rating plate, with the serial number and function version. Send us a photo of the rating plate and we will confirm the details before quoting.
Alternatives for QY51PL
The manufacturer’s named successor and other parts in the same family. None is a drop-in replacement without checking wiring, I/O and configuration for your installation.
| Product | Manufacturer | Type | Lifecycle | Relationship | Qty Available | Price | Action |
|---|---|---|---|---|---|---|---|
| Mitsubishi Electric QY50MELSEC-Q Output module, 16 outputs | Mitsubishi Electric | Digital output module | Phased out | Same family | On Request | On request | View › |
| Mitsubishi Electric QY41HMELSEC-Q Output module, 32 outputs | Mitsubishi Electric | Digital output module | Phased out | Same family | On Request | On request | View › |
| Mitsubishi Electric QY68AMELSEC-Q Output module, 8 outputs | Mitsubishi Electric | Digital output module | Phased out | Same family | On Request | On request | View › |
| Mitsubishi Electric QY70MELSEC-Q Output module, 16 outputs | Mitsubishi Electric | Digital output module | Discontinued | Same family | On Request | On request | View › |
| Mitsubishi Electric QY71MELSEC-Q Output module, 32 outputs | Mitsubishi Electric | Digital output module | Phased out | Same family | On Request | On request | View › |
| Mitsubishi Electric QY80MELSEC-Q Output module, 16 outputs | Mitsubishi Electric | Digital output module | Phased out | Same family | On Request | On request | View › |
| Mitsubishi Electric QY80-TSMELSEC-Q Output module, 16 outputs | Mitsubishi Electric | Digital output module | Phased out | Same family | On Request | On request | View › |
| Mitsubishi Electric QY81PMELSEC-Q Output module, 32 outputs | Mitsubishi Electric | Digital output module | Phased out | Same family | On Request | On request | View › |
| Mitsubishi Electric QY82PMELSEC-Q Output module, 64 outputs | Mitsubishi Electric | Digital output module | Phased out | Same family | On Request | On request | View › |
| Mitsubishi Electric QY11ALMELSEC-Q Output module, 16 outputs | Mitsubishi Electric | Digital output module | Phased out | Same family | On Request | On request | View › |
| Mitsubishi Electric QY13LMELSEC-Q Output module, 32 outputs | Mitsubishi Electric | Digital output module | Phased out | Same family | On Request | On request | View › |
| Mitsubishi Electric QY23LMELSEC-Q Output module, 32 outputs | Mitsubishi Electric | Digital output module | Phased out | Same family | On Request | On request | View › |
You may also be interested in

Mitsubishi Electric
Mitsubishi Electric FX5UJ-40MT/DSS
View ›
Mitsubishi Electric
Mitsubishi Electric FX5UJ-60MR/DS
View ›
Mitsubishi Electric
Mitsubishi Electric FX5UJ-60MT/DS
View ›
Mitsubishi Electric
Mitsubishi Electric FX5UJ-60MT/DSS
View ›
Mitsubishi Electric
Mitsubishi Electric FX5S-30MR/ES
View ›
Mitsubishi Electric
Mitsubishi Electric FX5S-30MT/ES
View ›
Mitsubishi Electric
Mitsubishi Electric FX5S-30MT/ESS
View ›
Mitsubishi Electric
Mitsubishi Electric FX5S-40MR/ES
View ›
Mitsubishi Electric
Mitsubishi Electric FX5S-40MT/ES
View ›
Mitsubishi Electric
Mitsubishi Electric FX5S-40MT/ESS
View ›
Mitsubishi Electric
Mitsubishi Electric FX5S-60MR/ES
View ›
Mitsubishi Electric
Mitsubishi Electric FX5S-60MT/ES
View ›
TIMC is an independent distributor. Manufacturer names and logos are the property of their respective owners and identify products we source; they do not imply manufacturer authorization or affiliation.