Allen-Bradley – 440R-M23143 Guardmaster MSR138DP Safety Relay

MPN: 440R-M23143 · Brand: Rockwell Automation / Allen-Bradley

Price on request

Request a Quote

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

30-day returns, no restocking fee on unused parts

Ships via

Quick facts

Availability	Confirmed on request
Category	Safety Relays Single-Function
Lifecycle	Active
Warranty	12-month (new) · 3-month (used/refurbished)

Shipping & availability

When can 440R-M23143 be shipped?

440R-M23143 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 440R-M23143 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 440R-M23143 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 440R-M23143, subject to availability and destination.

Allen-Bradley 440R-M23143 — Guardmaster MSR138DP Safety Relay. PartnerPLC supplies new, surplus and discontinued Allen-Bradley parts — request a quote for price, condition and lead time.

Specifications

Product

Lifecycle	Active
Repair options available	No

Specifications

Reset	Automatic/Manual Monitored
Sub Brand	Guardmaster
Category	EN ISO 13849-1: Instantaneous: 4
Continuous safety output current	UL: B300 , 5 A/250V AC @ 24V DC , AC-15: 6 A/250V AC, DC-13: 3 A/24V DC
Days of operation	365 dbays
DC avg	Instantaneous: 90%
DC	Instantaneous: 90%
Depth	114.50 mm
Electrical life cycle	100.000 (220V AC/4 A/880VA cosφ = 0.35), 500.000 (220V AC/1.7 A/375VA cosφ = 0.6), 1.000.000 (30V DC/2 A/60 W), 2.000.000 (10V DC/0.01 A/0.1 W)
Enclosure protection	IP40 (NEMA 1)
Enclosure type rating	IP40 (NEMA 1), DIN 0470
Evaluation inputs	One- and two-channel
Fuses output	External: 6 A slow blow or 10 A quick blow
Height	99 mm
Hours of operation	24 h
Input resistance, max	135 ohm
Input simultaneity	Infinite
Mission time	20 year
Model	Basic device
Mounting	35 mm DIN rail in enclosure to a min of IP54
MTTFd	Instantaneous: 295
Number of outputs, safety related, delayed, semiconductors	0
Number of outputs, safety related, delayed, with contact	3
Number of outputs, safety related, undelayed, semiconductors	0
Number of outputs, safety related, undelayed, with contact	2
Number of outputs, signalling function, delayed, semiconductors	0
Number of outputs, signalling function, delayed, with contact	0
Number of outputs, signalling function, undelayed, semiconductors	0
Number of outputs, signalling function, undelayed, with contact	0
Operating temperature	-5 °C
Operating voltage range	20.4
PFHd	0.00000000238
Pollution degree	2
Power consumption	4 W
Power ON delay	1 ms
Rail mounting possible	true
Rated control supply voltage at AC 50 Hz	24 V
Rated control supply voltage at AC 60 Hz	24 V
Rated control supply voltage at DC	24 V
Rated impulse withstand voltage	2500 V
Rated thermal current (Ith)	7 A maximum in one current path (non-switching)
Recovery time	100 ms
Relative humidity	Operating: 90%
Reset	Manual monitored or automatic/manual
Response time	15 ms
Safety inputs	1 N.C., 2 N.C., light curtain
Shock	10 G, 16 ms, 100 shocks
Suitable for monitoring of emergency-stop circuits	true
Suitable for monitoring of magnetic switches	true
Suitable for monitoring of optoelectronic protection equipment	true
Suitable for monitoring of position switches	true
Suitable for monitoring of proximity switches	true
Suitable for monitoring of tactile sensors	true
Suitable for monitoring of valves	true
Switching current, min	10 mA
Switching voltage, min	10 V
T cycle	8/28800 (h/s)
Terminal protection	IP20, DIN 0470
Terminal type	Removable
Time delay range	0.15 s
Type of electric connection	Screw connection
Vibration	10...55 Hz, 0.35 mm
Voltage type for actuating	AC/DC
Weight	350 g
Width	45 mm
Wire size	0.2 to 2.5 mm²
With detachable clamps	true
With feedback circuit	true
With start input	true