Spring Cage - Feed Through
Click below on the part number of interest to view data sheet.
Information listed below is per UL Rating.
Spring Cage Feed Through Single Level Terminal Blocks
| Image | Type Description / Order Number |
AWG | Width | Voltage | Amps | Data Sheet |
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ST 1.5 P/N 3031076 |
26-14 | 4.2mm | 300 | 15 | Data Sheet |
| ST 2.5 P/N 3031212 |
26-12 | 5.2mm | 600 | 20 | Data Sheet | |
| ST 2.5 BK P/N 3037122 |
26-12 | 5.2mm | 600 | 20 | Data Sheet | |
| ST 2.5 BU P/N 3031225 |
26-12 | 6.2mm | 600 | 20 | Data Sheet | |
| ST 2.5 GN P/N 3037106 |
26-12 | 6.2mm | 600 | 20 | Data Sheet | |
| ST 2.5 OG P/N 3037070 |
26-12 | 6.2mm | 600 | 20 | Data Sheet | |
| ST 2.5 RD P/N 3037096 |
26-12 | 6.2mm | 600 | 20 | Data Sheet | |
| ST 2.5 WH P/N 3037119 |
26-12 | 6.2mm | 600 | 20 | Data Sheet | |
| ST 2.5 YE P/N 3037083 |
26-12 | 6.2mm | 600 | 20 | Data Sheet | |
| ST 4 P/N 3031364 |
20-10 | 6.2mm | 600 | 30 | Data Sheet | |
| ST 6 P/N 3031487 |
20-8 | 8.2mm | 600 | 50 | Data Sheet | |
| ST 10 P/N 3036110 |
16-6 | 10.2mm | 600 | 65 | Data Sheet | |
| ST 16 P/N 3036149 |
16-4 | 12.0mm | 600 | 85 | Data Sheet | |
| ST 35 P/N 3036178 |
14-2 | 16.0mm | 600 | 115 | Data Sheet |

Spring Cage Feed Through Single Level Ground Terminal Blocks
| Image | Type Description / Order Number |
AWG | Width | Data Sheet |
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ST 1.5-PE P/N 3031513 |
26-14 | 4.2mm | Data Sheet |
| ST 2.5-PE P/N 3031238 |
26-12 | 5.2mm | Data Sheet | |
| ST 4-PE P/N 3031380 |
20-10 | 6.2mm | Data Sheet | |
| ST 6-PE P/N 3031500 |
20-8 | 8.2mm | Data Sheet | |
| ST 10-PE P/N 3036136 |
16-6 | 10.2mm | Data Sheet | |
| ST 16-PE P/N 3036165 |
16-4 | 12mm | Data Sheet | |
| ST 35-PE P/N 3036194 |
14-2 | 16mm | Data Sheet |

Spring Cage Feed Through Double Level Terminal Blocks
| Image | Type Description / Order Number |
AWG | Width | Voltage | Amps | Data Sheet |
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STTB 1.5 P/N 3031157 |
26-14 | 4.2mm | 300 | 15 | Data Sheet |
| STTB 1.5 BU P/N 3031160 |
26-14 | 4.2mm | 300 | 15 | Data Sheet | |
| STTB 2.5 P/N 3031270 |
26-12 | 5.2mm | 300 | 20 | Data Sheet | |
| STTB 2.5 BU P/N 3031283 |
26-12 | 5.2mm | 300 | 20 | Data Sheet | |
| STTB 4 P/N 3031429 |
20-10 | 6.2mm | 300 | 30 | Data Sheet | |
| STTB 4 BU P/N 3031432 |
20-10 | 6.2mm | 300 | 30 | Data Sheet | |
| STTB 1.5-PV P/N 3031526 |
26-14 | 4.2mm | 300 | 15 | Data Sheet | |
| STTB 2.5-PV P/N 3031539 |
26-12 | 5.2mm | 300 | 20 | Data Sheet | |
| STTB 4-PV P/N 3031542 |
20-10 | 6.2mm | 300 | 30 | Data Sheet |

Spring Cage Feed Through Double Level Ground Terminal Blocks
| Image | Type Description / Order Number |
Width | Data Sheet |
|
STTB 1.5-PE P/N 3036013 |
4.2mm | Data Sheet |
| STTB 2.5-PE P/N 3036026 |
5.2mm | Data Sheet | |
| STTB 4-PE P/N 3036039 |
6.2mm | Data Sheet |

Mini Spring Cage Terminal Block for Mounting on a Rail
| Image | Type Description / Order Number |
AWG | Width | Voltage | Data Sheet |
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MZB 1.5 P/N 3003716 |
26-14 | 5.2mm | 600 | Data Sheet |
| MZB 1.5 BU P/N 3005316 |
26-14 | 5.2mm | 600 | Data Sheet | |
| MZB 1.5-NS 35 P/N 3003732 |
26-14 | 5.2mm | 600 | Data Sheet | |
| MZB 1.5-NS 35 BU P/N 3005329 |
26-14 | 5.2mm | 600 | Data Sheet | |
| MZDB 1.5 P/N 3003800 |
26-14 | 10.4mm | 600 | Data Sheet | |
| MZDB 1.5 BU P/N 3005332 |
26-14 | 10.4mm | 600 | Data Sheet | |
| MZDB 1.5-NS 35 P/N 3003826 |
26-14 | 10.4mm | 600 | Data Sheet | |
| MZDB 1.5-NS 35 BU P/N 3005345 |
26-14 | 10.4mm | 600 | Data Sheet | |
| MZFK 1.5 P/N 3003758 |
26-14 | 5.2mm | 600 | Data Sheet | |
| MZFK 1.5 BU P/N 3005743 |
26-14 | 5.2mm | 600 | Data Sheet | |
| MZFKK 1.5 P/N 3029813 |
26-14 | 5.2mm | 600 | Data Sheet | |
| MZFKKB 1.5 P/N 3005714 |
26-14 | 5.2mm | 600 | Data Sheet |

Mini Spring Cage Ground Terminal Block for Mounting on a Rail
| Image | Type Description / Order Number |
AWG | Width | Data Sheet |
![]() |
MZB 1.5-PE P/N 3003729 |
26-14 | 5.2mm | Data Sheet |
| MZB 1.5-NS 35-PE P/N 3003745 |
26-14 | 5.2mm | Data Sheet | |
| MZFK 1.5-PE P/N 3003473 |
26-14 | 5.2mm | 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 | |||







