SU2S-21L

**Relay Sockets** SU series 

One step wiring Easy & quick connection 

IDEC CORPORATION 

## - Push in 

## 

## Save up to 55% in wiring time 

## Reduce maintenance work 

Wiring time reduced greatly compared with conventional screw terminals. 

(Compared with IDEC products) 

Push-in terminals eliminate the need for torque maintenance such as tightening of screws because screws are not used. 

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Push-in Approx. 55% reduced<br>SU Series<br>Conventional<br>Screw terminal<br>**----- End of picture text -----**<br>


*) Based on IDEC research 

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Retightening  |<br>No retightening<br>required<br>}<br>Screw terminal Push-in<br>**----- End of picture text -----**<br>


## Wide range of options 

Easy wiring to coil side connection using jumpers 

IDEC GT5Y timers can be mounted 

## Marking plate allows for easy identification 

Can be used with polarized relays. 

connections. Maintenance time is reduced. 

*) The rated current is 2A. 

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GT5Y timer RU relay<br>回路B<br>回路A<br>**----- End of picture text -----**<br>


2 

## Highly reliable 

## High visibility 

The terminal number on the socket can be clearly seen on the socket preventing incorrect wiring. Also, the distinct color pusher prevents a flat blade screwdriver from being inserted into the wire port. 

## Vibration-resistant 

Safe and reliable Push-in connection achieves high contact reliablity and vibration resistance regardless of the wire size or shape. 

## Wire port 

Terminal no. (white) Pusher (orange) Test point 

Hold-down spring (for relay) insert hole Release lever 

Marking plate insert hole 

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Before inserting wire<br>**----- End of picture text -----**<br>


Wire inserted 

## IP20 Finger-safe 

## Release lever 

IEC60529 finger-safe design. IP20 protection. Safe contact protection structure prevents electric shock. 

The release lever can be mounted to hold and remove the relay easily. 

3 

## **SU Series Relay Sockets** 

## Push-in relay sockets reduce wiring by 55%* 

* Compared with conventional screw terminal relay sockets. 

## Relay Sockets 

|Part No.|SU2S-21L|SU4S-21L|
|---|---|---|
|No. of Poles|2|4|
|Rated Insulation<br>Voltage|300V AC/DC||
|Rated Thermal<br>Current (*1)|12A|8A|
|Applicable Wire|Solid wire / stranded wire:<br>0.14 to 1.5mm2, AWG26 to 16<br>Stranded wire with ferrule (without insulated cover):<br>0.5 to 1.5mm2, AWG20 to 16<br>Stranded wire with ferrule (with insulated cover):<br>0.14 to 1.0mm2, AWG26 to 18||
|Insulation Resistance|100MΩ min. (500V DC megger)||
|Dielectric Strength|2500V AC, 1 min.<br>(between live and dead metal parts, between live<br>metalparts of the differentpoles)||
|Vibration Resistance<br>(Damage Limits)|10 to 55 Hz, amplitude 1.0 mm||
|Shock Resistance<br>(Damage Limits)|50G<br>( when using SU9Z-S21R/-S21T hold-down spring<br>or SU9Z-C21R release lever)||
|Operating<br>Temperature|–40 to +65°C (no freezing)||
|OperatingHumidity|5 to 85% RH (no condensation)||
|Storage Temperature|–40 to +65°C (no freezing)||
|Storage Humidity|5 to 85% RH (no condensation)||
|Degree of Protection|IP20 (IEC 60529)||
|Weight (approx.)|80g||
|Applicable Standards|UL508, CSA C22.2 No.14, IEC61984||



## **Specifications and Ratings** 

## **Applicable Relay / Timer** 

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No. of Poles Socket Relay Timer<br>2 SU2S-21L RU2S GT5Y-2<br>4 SU4S-21L RU4S, RU42S GT5Y-4<br>• For details on RU series relay, RN series relay, and GT5Y timer, see<br>catalog.<br>• When using the SU socket with RU series relay, be sure to note the<br>derating characteristics.<br>Derating Curve<br>11109 PTT)PPTTTT Er SU2S-21LSU4S-21L<br>8 Pt it tt ty EEN ET TI<br>7 Ltt tt yeAN<br>6 SERRE See<br>eee eee<br>5 BERR<br>4 BERR<br>3<br>2 Ltt ee<br>10 LtSERREit t t tt  yytt y ty ee<br>0 10 20 30 40 50 60 70<br>Ambient Temperature (°C)<br>Rated Current (A)<br>**----- End of picture text -----**<br>


- For details on RU series relay, RN series relay, and GT5Y timer, see catalog. 

- When using the SU socket with RU series relay, be sure to note the derating characteristics. 

## Derating Curve 

- *1) Be sure to note the derating characteristics. 

4 

SU Series Relay Sockets 

## **Dimensions** 

**All dimensions in mm.** 

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SU2S-21L  43 Terminal Arrangement      SU4S-21L 43 Terminal Arrangement<br>(12)41  (9)11 (12)41  (11)31  (10)21  (9)11<br>(8)44 (5)14 (8)44  (7)34  (6)24  (5)14<br>(4)42 (1)12 (4)42  (3)32  (2)22  (1)12<br>(14)A2 (13)A1 (14)A2 (13)A1<br>ee JUMPER PORT BES JUMPER PORT<br>TOP VIEW TOP VIEW<br>31  31<br>102  102<br>**----- End of picture text -----**<br>


Note) The numbers in parentheses (   ) are values accoring to NEMA standards. 

## **Accessories** 

**When ordering, specify the Ordering No.** 

Function Shape Material Part No. Ordering No. Remarks ~~ee ee ee es nersGS~~ Release Lever Plastic SU9Z-C21R SU9Z-C21R 24 (For Relay) a EL ~~=~~ Note)  Release lever cannot be used  on timers. Marking Plate Plastic (white) SU9Z-P2100W SU9Z-P2100W ~~| DD |~~ Bronze (tin-plated) A2 terminal of the coil is connected. Jumper Insulation: PBT SU9Z-J2102A SU9Z-J2102A The rated current is 2A. plastic For Relay Stainless steel SU9Z-S21R SU9Z-S21R ~~es~~ Hold-down See **P.8** for Applicable Relay / Timer. Spring For Timer Stainless steel SU9Z-S21T ~~a ee ee es ees~~ • Length: 1m DIN Rail Aluminum BAA1000 BAA1000 • Width: 35mm • Weight: 200g (approx.) ~~i? Aeeee~~ End Clip Metal BNL6 BNL-6 Weight: 15g (approx.) (zinc-plated steel) Use end clips when mounting multiple sockets on the DIN rail. Thickness: 5 mm DIN Rail Spacer Plastic (black) SA-406B SA-406B Used for adjusting spacing between sockets mounted on a DIN rail. ~~tt~~ 5 

SU Series Relay Sockets 

~~L~~ Instructions ~~e~~ 

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|||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|Identifying the Socket|Applicable Wire|PHOENIX CONTACT|WAGO|
|es|(Stranded Wire)|Without|With|Without|With|
|SU2S and SU4S can be identified by the part number marked on the|ss|AWG|mm|[2]|Insulation Cover|Insulation Cover|Insulation Cover|Insulation Cover|
|.|
|26|0.14|—|AI 0.14-8 GY-1000|—|—|
|24|0.25|—|AI 0.25-8 YE|—|FE-0.25-8N-YE|
|No. of Poles|Part No.|
|Rig|22|0.34|—|AI 0.34-8 TQ|—|FE-0.34-8N-TQ|
|2|SU2S-21L|Epp|a|
|4|SU4S-21L|Part No.Marking|20|0.50|A 0.5-10A 0.5-8|AI 0.5-8 WHAI 0.5-10 EH|FE-0.5-10FE-0.5-8|FE-0.5-10N-WHFE-0.5-8N-WH|
|A 0.75-8|AI 0.75-8 GY|FE-0.75-8|FE-0.75-8N-GY|
|Applicable Wire|2|18|—|0.75|A 0.75-10|AI 0.75-10 GY|FE-0.75-10|FE-0.75-10N-GY|
|When wiring, use the applicable wires shown below.|18|1.00|A 1.0-8|—|FE-1.0-8|—|
|A 1.0-10|—|FE-1.0-10|—|
|Applicable Wire and Specifications|eea|16|1.50|ee|A 1.5-10|ees|—|ees|FE-1.5-10|een|—|
|Applicable Wire|0.14 to 1.50mm|[[2]]|(AWG16 to 26)|Note) Check each company's catalog for details.|
|(Stranded Wire, Solid Wire)|
|p Length (*1) Length (*1)gth (*1)th (*1)(*1)*1))|10 to 11mm|Parts Description|terminalCOM|Wire portPusher|
|[ee|e|Test point|
|——|*1)  Strip the sheath of the wire         10 to 11 mm from the end.Ferrule Size (*2)       10 to 11 mm from the end.Ferrule Size (*2)|=|H0.5 to H1.5 H0.14  to H1.0 10 to 11mm(Without insulated cover(With insulated cover)H0.14  to H1.0 10 to 11mm(Without insulated cover(With insulated cover)10 to 11mm(Without insulated cover(With insulated cover)|)|terminalterminalNONC|geeeeneg|anae|s|—|Wire portPusherTest pointWire portPusherTest point|
|*2) When using a ferrule, refer to "Wire Size and Recommended Ferrule" below.|—|
|Note: Make sure that the stranded wires do not loosen when using wiring without ferrules.|
|Wire Size and Recommended Ferrules|Note: Two wire ports for each terminal|
|Ferrules without Insulated Covers|
|Applicable Wire|
|AWG(Stranded Wire)mm(Stranded Wire)mmmm|[[2]]|Wire Strip Length|Part No.|terminalCOIL|Test pointWire portsPusher|
|20|0.50|10 to 11 mm|H0.5/10|Se}|Jumper port|
|18|0.75|10 to 11 mm|H0.75/10|Inserting the Wire|Clamp|
|18|1.00|10 to 11 mm|H1.0/10|Wire with ferrule or solid wire|
|—|16|1.50|10 to 11 mm|H1.5/10|=|

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**Identifying the Socket** SU2S and SU4S can be identified by the part number marked on the side. . 

## **Applicable Wire** 

When wiring, use the applicable wires shown below. Applicable Wire and Specifications Applicable Wire 0.14 to 1.50mm[[2]] (AWG16 to 26) (Stranded Wire, Solid Wire) Wire Strip Length (*1) Length (*1)gth (*1)th (*1)(*1)*1)) 10 to 11mm Ferrule Size (*2) ) (Weidmüller) (Without insulated cover(With insulated cover)Without insulated cover(With insulated cover)(With insulated cover)With insulated cover)) ~~——~~ H0.5 to H1.5 H0.14  to H1.0 10 to 11mm(Without insulated cover(With insulated cover)H0.14  to H1.0 10 to 11mm(Without insulated cover(With insulated cover)10 to 11mm(Without insulated cover(With insulated cover) *1)  Strip the sheath of the wire         10 to 11 mm from the end.Ferrule Size (*2)       10 to 11 mm from the end.Ferrule Size (*2) ~~=~~ *2) When using a ferrule, refer to "Wire Size and Recommended Ferrule" below. 

Note: Make sure that the stranded wires do not loosen when using wiring without ferrules. 

## **Wire Size and Recommended Ferrules** 

Ferrules without Insulated Covers Applicable Wire Wire Strip Length Part No. AWG(Stranded Wire)mm(Stranded Wire)mmmm[[2]] 20 0.50 10 to 11 mm H0.5/10 18 0.75 10 to 11 mm H0.75/10 18 1.00 10 to 11 mm H1.0/10 ~~—~~ 16 1.50 10 to 11 mm H1.5/10 Ferrules with Insulated Covers 

1) Insert the wire to the back of the wire port. 

- 2) Wiring is complete. Pull the wire lightly to make sure that the wire does not pull out from the socket. 

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|||||
|---|---|---|---|
|Applicable Wire|
|(Stranded Wire)|Wire Strip Length|Part No.|
|AWG|mm|[2]|
|26|0.14|10 to 11 mm|H0.14/12 GR SV|
|24|0.25|10 to 11 mm|H0.25/12 HBL|
|22|0.34|10 to 11 mm|H0.34/12 TK|
|10 to 11 mm|H0.5/14 OR|
|20|0.50|
|12 to 13 mm|H0.5/16 OR|
|10 to 11 mm|H0.75/14 W|
|18|0.75|
|12 to 13 mm|H0.75/16 W|
|10 to 11 mm|H1.0/14 GE|
|18|1.00|
|12 to 13 mm|H1.0/16 GE|

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## Stranded wire 

- 1) Push the pusher (orange button) using a flat blade screwdriver. 

- 2) Insert the wire fully in the wiring port while pressing the pusher 

- 3) Release the flat blade screwdriver. Wiring is complete. Pull the wire lightly to make sure that the wire does not pull out from the socket. 

## Recommended Tools (Optional) 

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|||
|---|---|
|Name|Part No.|
|Crimping tool|PZ6 ROTO L|
|Flat blade screwdriver|SDS 0.4×2.5×75|

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Note 1) Note the crimping dimensions when using tools other than the recommended crimping tool. For details, see page **7** . 

Note 2) Use a flat blade screwdriver with a blade size of 0.4×2.5mm. 

Refer to the table below for other companies' ferrules that correspond to "Wire Size and Recommended Ferrules". 

## **Removing the Wire** 

- 1) Push the pusher using a flat blade screwdriver. 

- 2) Pull out the wire while pressing the pusher. 

- 3) Release the flat blade screwdriver. 

6 ~~pee~~ 

SU Series Relay Sockets 

## Instructions ~~LLL~~ 

## **Note** 

Note: Confirm that the relay is securely installed in the socket. The relay may fall off if it is not installed properly. 

- After wiring, tug lightly to make sure that the wire is properly connected. 

- Operate the pusher with a force of 40N. Do not press excessively. 

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Relay installed<br>**----- End of picture text -----**<br>


- Do not pull the wire out without depressing the pusher. When pulling the wire, be sure to pull in a straight direction. Otherwise, the socket may be damaged. 

- Use a recommended flat blade screwdriver with the blade size of 0.4×2.5mm. 

- When mounting multiple sockets on a DIN rail, be sure to secure both side with end clips (BNL6). 

## **Crimping of Ferrules and Wiring** 

- Choose an appropriate ferrule for the wire. 

- Cut the wire carefully to get a flat end. 

- Make sure that ferrule sleeve is completely filled by the conductor. Depending on the cross section, the conductor should protrude approx. 0 to 1 mm from the ferrule sleeve. 0 to 1mm 

- When crimping, refer to the instructions of the crimping tool. 

## Crimping dimensions: W2.4×H1.9 mm 

Maximum connectable crimping size is W2.4×H1.9. Make sure that the ferrule size will be smaller than this dimension. 

1.9mm 2.4mm 

Note 1) If a tool other than the recommended crimping is used, the ferrule may not be crimped to the appropriate size and the clamp or spring inside the socket may be deformed and may not operate normally. 

## Removing the Relay 

Lightly press the relay to prevent it from falling off. Then pull down the release lever to the direction shown by the arrow and the remove the socket. 

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Relay installed Relay removed<br>SG LE<br>Lever touches the socket<br>**----- End of picture text -----**<br>


## Note) 

Make sure that wire or finger is not caught between the release lever and socket. 

Because release lever is removable, make sure not to apply excessive force. Otherwise the relay may fall and result in damage. 

## **Installing the Marking Plate** 

Install the marking plate as shown in the diagram below. Mark on the durface using an oil-based marker, or affix a sticker with markings. The size of the marking surface is 8.4mm × 25mm. 

Note 2) Pin crimp terminals cannot be used. 

## **Installing the Hold-down Spring** 

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SU9Z-P2100W<br>**----- End of picture text -----**<br>


Use SU9Z-S21R (for relay) or SU9Z-S21R (for timer) hold-down springs. Install the hold-down springs into approriate spring insert hole. To install, see below diagram. 

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B SU9Z-S21R h. SU9Z-S21T i<br>Note)   Confirm that the Hold-down Spring is securely installed into the spring insert hole. The relay<br>may fall off if it is not installed properly.<br>**----- End of picture text -----**<br>


## **Installing / Removing the Relay** 

## Installing the Relay 

1. Unlock the release lever by pulling 2.  Press the relay against the socket as down as shown with arrow ➀. shown with arrow ➁. Make sure that the relay is firmly in place. 

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① ②<br>**----- End of picture text -----**<br>


## **Using the Jumper** 

Insert the jumper to the back of the jumper slot. To remove, insert the small flat blade driver into the slot below and pull out. Because the rated current is 2A, use at 2A maximum. 

Insertion slot ale Insertion slot ~~s~~ SU9Z-J2102A ~~we~~ 

## **Installing the Release Lever** 

To install the release lever, SU9Z-S21R (for relay), attach to the protrusion on the socket as shown below. 

- : Mounting hole for SU9Z-S21R 

- : Mounting hole for SU9Z-S21T 

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SU9Z-C21R<br><br>   : SU9Z-C21R protrusion<br>      for installation<br>**----- End of picture text -----**<br>


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<br>**----- End of picture text -----**<br>


7 ~~a~~ 

SU Series Relay Sockets 

## Applicable Relay / Timer 

## **Applicable Relay (RU Series)** 

## Rated Coil Voltage 

|Shape|Model|Model|Single Contact|Single Contact|Bifurcated Contact|Coil Voltage Code*|
|---|---|---|---|---|---|---|
||||Part No. (DPDT)|Part No. (4PDT)|Part No. (4PDT)||
||With Latching<br>Lever|Standard|RU2S-*|RU4S-*|RU42S-*|A24, A100, A110, A200, A220,<br>D6, D12, D24, D48, D100, D110|
|||With diode (DC coil only)|RU2S-D-*|RU4S-D-*|RU42S-D-*|D6, D12, D24, D48, D100, D110|
|||With diode (DC coil only)<br>Reverse polarity coil|RU2S-D1-*|RU4S-D1-*|RU42S-D1-*|D24|
|||With RC (AC coil only)|RU2S-R-*|RU4S-R-*|RU42S-R-*|A100, A110, A200, A220|
||Without Latching<br>Lever|Standard|RU2S-C-*|RU4S-C-*|RU42S-C-*|A24, A100, A110, A200, A220,<br>D6, D12, D24, D48, D100, D110|
|||With diode (DC coil only)|RU2S-CD-*|RU4S-CD-*|RU42S-CD-*|D6, D12, D24, D48, D100, D110|
|||With diode (DC coil only)<br>Reverse polarity coil|RU2S-CD1-*|RU4S-CD1-*|RU42S-CD1-*|D24|
|||With RC (AC coil only)|RU2S-CR-*|RU4S-CR-*|RU42S-CR-*|A100, A110, A200, A220|



## **Applicable Timer (GT5Y)** 

|Shape|Operation Mode|Contact<br>Configuration|Output|Time Range|Operating Voltage|Part No.|
|---|---|---|---|---|---|---|
||A: ON Delay<br>B: Interval ON<br>C: Cycle OFF<br>D: Cycle ON|2PDT|220V AC/<br>30V DC, 5A|0.1S to 10H|100 to 120V AC|GT5Y-2SN1A100|
|||||0.1S to 30H||GT5Y-2SN3A100|
|||||0.1S to 60H||GT5Y-2SN6A100|
|||||0.1S to 10H|200 to 240V AC|GT5Y-2SN1A200|
|||||0.1S to 30H||GT5Y-2SN3A200|
|||||0.1S to 10H|12V DC|GT5Y-2SN1D12|
|||||0.1S to 30H||GT5Y-2SN3D12|
|||||0.1S to 60H||GT5Y-2SN6D12|
|||||0.1S to 10H|24V DC|GT5Y-2SN1D24|
|||||0.1S to 30H||GT5Y-2SN3D24|
|||||0.1S to 60H||GT5Y-2SN6D24|
|||4PDT|220V AC/<br>30V DC, 3A|0.1S to 10H|100 to 120V AC|GT5Y-4SN1A100|
|||||0.1S to 30H||GT5Y-4SN3A100|
|||||0.1S to 60H||GT5Y-4SN6A100|
|||||0.1S to 10H|200 to 240V AC|GT5Y-4SN1A200|
|||||0.1S to 30H||GT5Y-4SN3A200|
|||||0.1S to 60H||GT5Y-4SN6A200|
|||||0.1S to 30H|12V DC|GT5Y-4SN3D12|
|||||0.1S to 10H|24V DC|GT5Y-4SN1D24|
|||||0.1S to 30H||GT5Y-4SN3D24|
|||||0.1S to 60H||GT5Y-4SN6D24|



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©2021 IDEC Corporation. All Rights Reserved. Catalog No. EP1720-USA01 

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Specifications and other descriptions in this catalog are subject to change without notice.