QY51PL Mitsubishi MELSEC-Q Series Large output

MPN: QY51PL · Brand: Mitsubishi Electric (Factory Automation)

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12-month warranty (new) · 3-month (used/refurbished)

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Quick facts

Availability	Confirmed on request
Category	Mitsubishi MELSEC-Q Series – I/O
Lifecycle	Active mature
Warranty	12-month (new) · 3-month (used/refurbished)

Shipping & availability

When can QY51PL be shipped?

QY51PL is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.

Can I pick up QY51PL in person?

Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.

Is express delivery available?

Yes — mention it when you request a quote for QY51PL and we'll include express shipping options in our reply.

My factory is down and I need this urgently — can you help?

For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for QY51PL, subject to availability and destination.

The Mitsubishi Electric QY51PL is a large output in the MELSEC-Q Series. 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. Mitsubishi Electric has announced its discontinuation (2029/09 To be end of order) — plan spares now; PartnerPLC also sources it on the surplus market after the end of order. Specifications and manuals below are Mitsubishi Electric's own data.

Specifications

Product

Series	MELSEC-Q Series
Category	Large output
Type	Transistor output (sink)
Sales status	2029/09 To be end of order (Mitsubishi Electric)
Outline	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

Output specifications

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

Common specifications

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
External dimensions: Depth	116.5 mm
Weight	0.28 kg