SR4 Series Relays


TE Connectivity's SR4 series offers a four pole relay with force guided contacts

TE Connectivity's SR4D/M is a four pole relay with force guided contacts. They are key elements of safety circuits and modules that are required for use for a variety of applications in industrial controls, railway signals and controls, elevator controls, medical equipment, and more. Force guided relays are designed according to standard EN50205, which relates to safety circuits that protect persons from injury or death. While this is a European standard, it is also the basis for other standards being implemented globally. SR4D/M is offered with two normally open and two normally closed contacts or three normally open and one normally closed contact. TE’s SR4D/M is smaller in size than the functional equivalent products from some competitors. This relay has PC board terminals. It has eight amp contacts, and is offered with a variety of 800 milliwatt DC coils. It meets the requirements for VDE and TUV, as well as UL for the US and Canada, and CCC.

Applications include: emergency shut off, press control, machine control, elevator and escalator control, and safety relays.

Specifications:
  • 4 pole relay
  • 2 NO / 2NC or 3 NO / 1NC
  • Contacts are forcibly guided (EN50205)
  • Smaller size than some competitors’ relays
  • Ambient temperature range: -40°C to +70°C
  • Rated current: 8 A
  • Coil power: 800 mW
  • Rated voltage: 250 VAC
  • Coil voltage range: 6 to 110 VDC
  • Approvals: VDE, TÜV, UL

SR4, SCHRACK

Manufacturer Part Number Description Available Quantity Datasheets
SR4M4012 RELAY SAFETY 4PST 8A 12V 203
SR4D4018 RELAY SAFETY 4PST 8A 18V 140
SR4D4021 RELAY SAFETY 4PST 8A 21V 248
SR4D4040 RELAY SAFETY 4PST 8A 40V 250
SR4D4048 RELAY SAFETY 4PST 8A 48V 155
SR4D4060 RELAY SAFETY 4PST 8A 60V 162
SR4M4006 RELAY SAFETY 4PST 8A 6V 230
SR4M4018 RELAY SAFETY 4PST 8A 18V 227
SR4M4021 RELAY SAFETY 4PST 8A 21V 109
SR4M4048 RELAY SAFETY 4PST 8A 48V 226
SR4M4085 RELAY SAFETY 4PST 8A 85V 248
SR4M4110 RELAY SAFETY 4PST 8A 110V 177
SR4D4024 RELAY SAFETY 4PST 8A 24V 901
SR4M4024 RELAY SAFETY 4PST 8A 24V 4282
SR4D4005 RELAY SAFETY 4PST 8A 5V 570
SR4D4012 RELAY SAFETY 4PST 8A 12V 1792