Omron 24 V ac/dc Safety Relay Single or Dual Channel With 3 Safety Contacts and 1 Auxilary Contact

  • RS Stock No. 549-546
  • Mfr. Part No. G9SA-321-T15 24AC/DC
  • Manufacturer Omron
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): CN
Product Details

G9SA, Safety Relays, Expandable

The G9SA family offers a line-up of compact and expandable safety relay units. Modules with safe OFF-delay timing are available as well as a two hand controller. Simple multiplication of safety contacts is possible by using the connection on the front.

45mm wide housing, expansion units are 17.5mm wide
Both DIN mount and screw mount are possible
Safe OFF-delay timer model with 1-15s delay (in 1s steps)
Simple expansion connection
Certification up to category 4 according to EN954-1 depending on the application
Suitable for PNP OSSD outputs of safety sensors, F3SN, F3SH, F3S-B, F3S-TGR, F3SL


EN954-1, EN60204-1, EN574 (-TH301), UL508, CSA C22.2 No. 14



G9SA Compact Expandable Safety Relays.

Compact. Four relay types of 45 mm widths available. 3-pole, 5-pole, models with 3-poles and 2 OFF-delay poles plus 2-hand controller. Also available are the 17.5mm wide relay expansion units with 3-poles and 3 OFF-delay poles. Easy expansion connection. OFF-delay safety relay models have 15-step OFF-delay settings. Conforms to EN ISO 13849-1 (PLe/safety category 4) DIN rail mounting and Screw mounting. Used for most safety relay applications within the industrial automation industry.

G9SA Safety Relay Series Explained.

G9SA -301 or G9SA-501 – Relay Emergency Stop Units. G9SA-321- T – Relay Emergency Stop OFF-delay units. G9SA-TH – Relay Two-hand Controller. G9SA-EX301 – Relay Expansion Units. G9Sa-EX031 – Relay Expansion Units with OFF-delay Outputs.

G9SA-321-T15 24AC/DC Emergency Stop OFF Delay Safety Relay.

Main contact 3PST-NO (normally open). Auxiliary contact SPST-NC (normally closed). OFF-delay contact DPST-NO (normally open) 1 Channel or 2 Channels possible. OFF-delay time 15 s Rated voltage 24 V ac/dc. Operating voltage range 85% to 110% of the rated power supply voltage. Power consumption 24 V ac/dc, 3.5 VA/3.3 W max. When an expansion unit is connected the power consumption is increased by 2 VA/2 W max. Input current 40 mA max. Resistive load Rated load 250 V ac, 5 A. 30 V dc, 5 A. Rated carry current 5 A.

Features and Benefits.

Contact resistance 100 mΩ Insulation resistance 100 MΩ mon (at 500 V dc) Vibration resistance 10 to 55 to 10 Hz, 0.275 mm single amplitude (0.75 mm double amplitude) Shock resistance destruction 300 m/s². Shock resistance malfunction 100 m/s² Failure rate (P Level) (reference value) 5 V dc, 1 mA Weight 270 g. (for 24 ac/dc) Weight 290 g. (for 100 to 240 V ac) Do Not remove the connector of this model unless an expansion unit is being connected. Always turn OFF the G9SA before connecting an expansion unit. If mounting multiple units next to each other the rated current will be 3 A. (do not apply any higher currents)


EN 954-1, EN 60204-1, UL 508, CSA C22.2 No 14, EN 55011 group 1 class A, EN 50082-2 group 1.

Attribute Value
Supply Voltage 24 V ac/dc
Number of Channels 1, 2
Auxiliary Contacts 1
Function Emergency Stop
Safety Contacts 3
Depth 111mm
Length 76mm
Width 45mm
3 In stock for delivery within 5 working day(s)
Price (ex. GST) Each
$ 565.47
(exc. GST)
$ 650.29
(inc. GST)
Per unit
1 - 2
3 - 4
5 +
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