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SR4M4021
Active
Safety Relays
Description:
RELAY SAFETY 4PST 8A 21V
Manufacturer:
TE Connectivity
Datasheet:
SR4M4021 Datasheet
History Price: $27.17
In Stock: 23500
Specification
PDF Datasheet
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SR4M4021 Specification
Specification
Part No
SR4M4021
Category
Safety Relays
Manufacturer
TE Connectivity
Series
SR4, SCHRACK
Packaging
Tube
Status
Active
Environmental Compliance
Lead Free
Radiation Hardening
No
REACH SVHC
No SVHC
RoHS
Compliant
HS Code
-
Technical Parameter
Mounting Type
Through Hole
Coil Voltage
21VDC
Contact Form
4PST-3NO/1NC (3 Form A, 1 Form B)
Contact Rating (Current)
8:00:00
Switching Voltage
400VAC - Max
Features
-
Termination Style
PC Pin
Must Operate Voltage
16 VDC
Must Release Voltage
2.1 VDC
Operate Time
-25℃ ~ 70℃
Release Time
Silver Tin Oxide (AgSnO)
Operating Temperature
-
Contact Material
-
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SR4M4021 Compare Parts
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Customer Reviews
4.95 out of 5.00 stars from 111 customer reviews from all over the world
Salomé Lefèvre
France
2026-09-19 04:17
Great thank you
Martin Roy
France
2026-09-19 03:51
Great thank you
Eglė Vaitkevičienė
Lithuania
2026-09-19 00:27
IC's may be original. Offset voltage is according to datasheet, balance wors too. Thanks!
Roos van der Heijden
Netherlands
2026-09-19 00:23
Product as described
Niklas Schneider
Germany
2026-09-18 23:47
Fast shipping to Germany. Safe packaged.
Price performance of agency are top
Cláudia Maria Ferreira
Brazil
2026-09-18 23:26
Excellent Product, delivered super fast and quality, great seller!
