Spring Cage - Special Terminal Blocks
Click below on the part number of interest to view data sheet.
Information listed below is per UL Rating.
Please select:
- Three and Four Conductor Terminal Blocks
- Three and Four Conductor Ground Terminal Blocks
- Three and Four Conductor Angled Entry Terminal Blocks
- Three and Four Conductor Angled Entry Ground Terminal Blocks
- Single Level Terminal Blocks - With Diodes
- Double Level Terminal Blocks - With Diodes
- Number of Terminal Blocks per Linear Foot of DIN-Rail Space
Three and Four Conductor Terminal Blocks
| Image | Type Description / Order Number |
AWG | Width | Voltage | Amps | Data Sheet |
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ST 1.5-TWIN* P/N 3031128 |
26-14 | 4.2mm | 300 | 15 | Data Sheet |
| ST 1.5-TWIN BU* P/N 3031131 |
26-14 | 4.2mm | 300 | 15 | Data Sheet | |
| ST 2.5-TWIN P/N 3031241 |
26-12 | 5.2mm | 600 | 20 | Data Sheet | |
| ST 2.5-TWIN BU P/N 3031254 |
26-12 | 5.2mm | 600 | 20 | Data Sheet | |
| ST 4-TWIN P/N 3031393 |
20-10 | 6.2mm | 600 | 30 | Data Sheet | |
| ST 4-TWIN BU P/N 3031403 |
20-10 | 6.2mm | 600 | 30 | Data Sheet | |
| ST 1.5-QUATTRO* P/N 3031186 |
26-14 | 4.2mm | 300 | 15 | Data Sheet | |
| ST 1.5-QUATTRO BU* P/N 3031199 |
26-14 | 4.2mm | 300 | 15 | Data Sheet | |
| ST 2.5-QUATTRO P/N 3031306 |
26-12 | 5.2mm | 600 | 20 | Data Sheet | |
| ST 2.5-QUATTRO BU P/N 3031319 |
26-12 | 5.2mm | 600 | 20 | Data Sheet | |
| ST 4-QUATTRO P/N 3031445 |
20-10 | 6.2mm | 600 | 30 | Data Sheet | |
| ST 4-QUATTRO BU P/N 3031458 |
20-10 | 6.2mm | 600 | 30 | Data Sheet |

Three and Four Conductor Ground Terminal Blocks
| Image | Type Description / Order Number |
AWG | Width | Data Sheet |
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ST 1.5-TWIN-PE* P/N 3031144 |
26-14 | 4.2mm | Data Sheet |
| ST 2.5-TWIN-PE P/N 3031267 |
26-12 | 5.2mm | Data Sheet | |
| ST 4-TWIN-PE P/N 3031416 |
20-10 | 6.2mm | Data Sheet | |
| ST 1.5-QUATTRO-PE* P/N 3031209 |
26-14 | 4.2mm | Data Sheet | |
| ST 2.5-QUATTRO-PE P/N 3031322 |
26-12 | 5.2mm | Data Sheet | |
| ST 4-QUATTRO-PE P/N 3031461 |
20-10 | 6.2mm | Data Sheet |

Three and Four Conductor Angled Entry Terminal Blocks
| Image | Type Description / Order Number |
AWG | Width | Voltage | Amps | Data Sheet |
|
STS 2.5-TWIN P/N 3031720 |
26-12 | 5.2mm | 600 | 20 | Data Sheet |
| STS 2.5-TWIN BU P/N 3036275 |
26-12 | 5.2mm | 600 | 20 | Data Sheet | |
| STS 4-TWIN P/N 3031665 |
20-10 | 6.2mm | 600 | 30 | Data Sheet | |
| STS 4-TWIN BU P/N 3036291 |
20-10 | 6.2mm | 600 | 30 | Data Sheet | |
| STS 2.5-QUATTRO P/N 3031746 |
26-12 | 5.2mm | 600 | 20 | Data Sheet | |
| STS 2.5-QUATTRO BU P/N 3036288 |
26-12 | 5.2mm | 600 | 20 | Data Sheet | |
| STS 4-QUATTRO P/N 3031681 |
20-10 | 6.2mm | 600 | 30 | Data Sheet | |
| STS 4-QUATTRO BU P/N 3036301 |
20-10 | 6.2mm | 600 | 30 | Data Sheet |

Three and Four Conductor Angled Entry Ground Terminal Blocks
| Image | Type Description / Order Number |
AWG | Width | Data Sheet |
![]() |
STS 2.5-TWIN-PE P/N 3031733 |
26-12 | 5.2mm | Data Sheet |
| STS 4-TWIN-PE P/N 3031678 |
20-10 | 6.2mm | Data Sheet | |
| STS 2.5-QUATTRO-PE P/N 3031759 |
26-12 | 5.2mm | Data Sheet | |
| STS 4-QUATTRO-PE P/N 3031694 |
20-10 | 6.2mm | Data Sheet |

Single Level Terminal Blocks - With Diodes
| Image | Type Description / Order Number |
AWG | Width | Voltage | Amps | Data Sheet |
|
ST 2.5-DIO/L-R P/N 3036262 |
26-12 | 5.2mm | 600 | 20 | Data Sheet |
| ST 2.5-DIO/R-L P/N 3036518 |
26-12 | 5.2mm | 600 | 20 | Data Sheet | |
| ST 2.5-TWIN-DIO/L-R P/N 3036246 |
26-12 | 5.2mm | 600 | 20 | Data Sheet | |
| ST 2.5-TWIN-DIO/R-L P/N 3036521 |
26-12 | 5.2mm | 600 | 20 | Data Sheet | |
| ST 2.5-QUATTRO-DIO/L-R P/N 3036233 |
26-12 | 5.2mm | 600 | 20 | Data Sheet | |
| ST 2.5-QUATTRO-DIO/R-L P/N 3036534 |
26-12 | 5.2mm | 600 | 20 | Data Sheet |

Double Level Terminal Blocks - With Diodes
| Image | Type Description / Order Number |
AWG | Width | Voltage | Amps | Data Sheet |
|
STTB 2.5-DIO/U-O P/N 3031563 |
26-12 | 5.2mm | 600 | 20 | Data Sheet |
| STTB 2.5-DIO/O-U P/N 3031555 |
26-12 | 5.2mm | 600 | 20 | Data Sheet | |
| STTB 2.5-DIO/UL-UR P/N 3031571 |
26-12 | 5.2mm | 600 | 20 | Data Sheet | |
| STTB 2.5-2DIO/O-UL/UR-UL P/N 3031584 |
26-12 | 5.2mm | 600 | 20 | Data Sheet | |
| STTB 2.5-2DIO/O-UL/O-UR P/N 3031597 |
26-12 | 5.2mm | 600 | 20 | Data Sheet |

Number of Terminal Blocks per Linear Foot of DIN-Rail Space
| 4.2 mm = | 72 per foot | 12.0 mm = | 25 per foot | |
| 5.2 mm = | 59 per foot | 12.1 mm = | 25 per foot | |
| 6.1 mm = | 50 per foot | 12.2 mm = | 25 per foot | |
| 6.2 mm = | 49 per foot | 15.1 mm = | 20 per foot | |
| 8.1 mm = | 37 per foot | 16.0 mm = | 19 per foot | |
| 8.2 mm = | 37 per foot | 16.2 mm = | 18 per foot | |
| 9.0 mm = | 34 per foot | 17.6 mm = | 17 per foot | |
| 9.5 mm = | 32 per foot | 18.0 mm = | 17 per foot | |
| 10.0 mm = | 30 per foot | 18.1 mm = | 16 per foot | |
| 10.1 mm = | 30 per foot | 25.0 mm = | 12 per foot | |
| 10.2 mm = | 30 per foot | 27.0 mm = | 11 per foot | |
| 10.4 mm = | 29 per foot | 35.0 mm = | 8 per foot | |
| 11.0 mm = | 28 per foot | |||





