LA1S51B Mitsubishi MELSEC-L Series Extension base

MPN: LA1S51B · Brand: Mitsubishi Electric (Factory Automation)

Price on request

Discontinued by Mitsubishi Electric (Factory Automation) — we can still source the original LA1S51B (new, used or refurbished, subject to availability). Request a quote below.

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

30-day returns, no restocking fee on unused parts

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Quick facts

Availability	Confirmed on request
Category	Mitsubishi MELSEC-L Series – Branch/extension
Lifecycle	Discontinued
Warranty	12-month (new) · 3-month (used/refurbished)

Shipping & availability

Can I still buy the LA1S51B now that it is discontinued?

Yes. Mitsubishi Electric (Factory Automation) has discontinued the LA1S51B, but sourcing discontinued parts is what PartnerPLC specialises in — new old stock, used and refurbished units. Request a quote and we'll confirm availability, condition and lead time.

When can LA1S51B be shipped?

LA1S51B 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 LA1S51B 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 LA1S51B 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 LA1S51B, subject to availability and destination.

The Mitsubishi Electric LA1S51B is a extension base in the MELSEC-L Series. 1 slot, power supply module not required, for AnS Series modules. Mitsubishi Electric has discontinued it (2021/06 Discontinued); PartnerPLC sources discontinued Mitsubishi parts on the surplus market for maintenance of existing machines. Specifications and manuals below are Mitsubishi Electric's own data.

Specifications

Product

Series	MELSEC-L Series
Category	Extension base
Type	LA1S
Sales status	2021/06 Discontinued (Mitsubishi Electric)
Outline	1 slot, power supply module not required, for AnS Series modules

Specifications

Number of mountable I/O modules	1
Applicable module	MELSEC-AnS series modules
Applicable power supply module	None
Internal current consumption (5 V DC)	150 mA
Mounting hole size	M5 screw hole or ø5.5 hole (for M5 screw)
External dimensions: Height	130 mm
External dimensions: Width	120 mm
External dimensions: Depth	38.5 mm
Weight	0.32 kg
DIN rail mounting adapter type	―