Home / Mitsubishi Electric (Factory Automation) / Mitsubishi MELSEC-QS/WS Safety – Safety controller / WS0-4RO4002 Mitsubishi MELSEC-QS/WS Safety Safety I/O

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WS0-4RO4002 Mitsubishi MELSEC-QS/WS Safety Safety I/O

MPN: WS0-4RO4002 · Brand: Mitsubishi Electric (Factory Automation)

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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-QS/WS Safety – Safety controller
Lifecycle	Active
Warranty	12-month (new) · 3-month (used/refurbished)

Shipping & availability

When can WS0-4RO4002 be shipped?

WS0-4RO4002 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 WS0-4RO4002 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 WS0-4RO4002 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 WS0-4RO4002, subject to availability and destination.

The Mitsubishi Electric WS0-4RO4002 is a safety I/O in the MELSEC-QS/WS Safety. Safety output: safety relay output 2 points (2 outputs EDM contact 2 points/safe enabling contact 2 points), rated load current: 6 A/1 point, spring-clamp terminal block Abbreviation: WS0-4RO Powered by SICK. Specifications and manuals below are Mitsubishi Electric's own data.

Specifications

Product

Series	MELSEC-QS/WS Safety
Category	Safety I/O
Type	Safety relay output
Outline	Safety output: safety relay output 2 points (2 outputs EDM contact 2 points/safe enabling contact 2 points), rated load current: 6 A/1 point, spring-clamp terminal block Abbreviation: WS0-4RO Powered by SICK

Specifications

Safety Integrity Level	SIL3 (IEC 61508, IEC 62061)
Category	Category 4 (EN/ISO 13849-1)
Performance Level	PLe (EN/ISO 13849-1)
PFD	1.6 × 10 -7
PFHd at I = 0.75 A, switching frequency = h -1	1.2 × 10 -9
B10d value, switching frequency = h -1	0.75 A (AC 15)/4,150,000
SFF	99.6 %
DC	99 %
TM (mission time)	Depending on PFHd value, ambient temperature, load and switching operations
No. of mechanical switching operations	Minimum 200,000
Impulse voltage withstand level (Uimp)	4 kV
Rated voltage	300 V AC
Protection degree	Terminals: IP 20 (IEC 60529) Housing: IP 40 (IEC 60529)
Electromagnetic compatibility	Class A (IEC 611312, EN 6100062, EN 6100064, EN 55011)
Electrical isolation: Supply circuit-input circuit	No
Electrical isolation: Supply circuit-output circuit	Yes
Electrical isolation: Input circuit-output circuit	Yes
External dimensions: Height	106.5 mm
External dimensions: Width	22.5 mm
External dimensions: Depth	120.8 mm
Weight	186 g (±5 %)
External supply power: Power consumption	Maximum 3.2 W
External supply power: Supply voltage	18...30 V DC
Output circuit (13-14, 23-24, 33-34, 43-44, Y1-Y2, Y3-Y4): Number of N/O contacts	4 (13-14, 23-24, 33-34, 43-44)
Output circuit (13-14, 23-24, 33-34, 43-44, Y1-Y2, Y3-Y4): Number of N/C contacts	2 (Y1-Y2, Y3-Y4)
Output circuit (13-14, 23-24, 33-34, 43-44, Y1-Y2, Y3-Y4): Switching voltage	230 V AC (5...253 V AC) 230 V DC (5...253 V DC)
Output circuit (13-14, 23-24, 33-34, 43-44, Y1-Y2, Y3-Y4): Switching current	10 mA...6 A
Output circuit (13-14, 23-24, 33-34, 43-44, Y1-Y2, Y3-Y4): Mechanical endurance	Minimum 10 × 10 6
Output circuit (13-14, 23-24, 33-34, 43-44, Y1-Y2, Y3-Y4): Minimum contact load with Un = 24 VDC	50 mW
Output circuit (13-14, 23-24, 33-34, 43-44, Y1-Y2, Y3-Y4): Total current	8 A
Output circuit (13-14, 23-24, 33-34, 43-44, Y1-Y2, Y3-Y4): Response time	30 ms
Output circuit (13-14, 23-24, 33-34, 43-44, Y1-Y2, Y3-Y4): Output type	Potential-free N/O contacts, positively guided
Output circuit (13-14, 23-24, 33-34, 43-44, Y1-Y2, Y3-Y4): Contact material	AgSnO2 with 1µ Au
Output circuit (13-14, 23-24, 33-34, 43-44, Y1-Y2, Y3-Y4): Output circuit fusing	6 A (gG), per current path
Output circuit (13-14, 23-24, 33-34, 43-44, Y1-Y2, Y3-Y4): Usage category	AC-15: Ue 250 V, Ie 3 A DC-13: Ue 24 V, Ie 3 A
Output circuit (Y14, Y24): Type of output	N/O contact, connected to internal 24 V DC, positively guided, current-limited
Output circuit (Y14, Y24): Number of N/O contacts	2
Output circuit (Y14, Y24): Output voltage	24 V DC (16...30 V DC)
Output circuit (Y14, Y24): Output current	Maximum 75 mA
Output circuit (Y14, Y24): Load capacity	200 nF

Specifications

General specifications

Refer to the general specifications of the CPU module.

Downloads & documentation

Official documents from Mitsubishi Electric (Factory Automation), downloaded directly from the manufacturer.

Data sheets & manuals

Safety Controller User's Manual (SH-080855ENG-P)	PDF · 7.01MB
Safety Controller Safety Relay Output Module User's Manual (Hardware) (IB-0800531ENG-G)	PDF · 0.59MB
WARRANTY (BCN-P5736)	PDF · 0.08MB

12-month warrantyon all new stock

3-month warrantyon used & refurbished parts

30-day returnsno restocking fee on unused parts

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