Overview
The Square D 9070T100D31 is a Type T industrial control transformer rated at 100VA for single-phase applications. Designed for machine tool and industrial control panel use, this transformer steps down 240x480V primary voltages to 120/240V secondary voltages, providing reliable low-voltage control power for contactors, relays, and pilot devices. With a 55°C temperature rise rating and copper windings, it delivers consistent performance in demanding industrial environments. UL Listed and CSA Certified for code-compliant installations.
Features
- 100VA power rating — suitable for single-phase industrial control circuits
- Dual primary voltage: 240x480V (also accepts 220x440V and 230x460V primary connections)
- Dual secondary voltage: 120/240V (also 110/220V and 115/230V secondary options via tap connections)
- 55°C temperature rise for reliable operation in enclosed control panels
- Screw clamp terminals for secure, tool-assisted wire connections
- Copper windings for superior conductivity and long service life
- Open device construction — mounts directly in enclosures or control panels
- FSC1 fingersafe cover compatible for added electrical safety
- UL Listed (File E61239) and CSA Certified (File LR37055, Guide 184-N-90)
- Compact form factor: 2.89″H x 3.38″W x 3.34″D
- Manufactured in Mexico
Specifications
| Model Number | 9070T100D31 |
|---|---|
| Product Type | Industrial Control Transformer |
| Type | T (Type T) |
| Series | 9070T |
| Power Rating | 100 VA (UL, CSA, NOM, CE) |
| Number of Phases | 1 Phase |
| Primary Voltage | 240 x 480 V / 230 x 460 V / 220 x 440 V |
| Secondary Voltage | 120/240 V / 115/230 V / 110/220 V |
| Temperature Rise | 55°C |
| Insulation Temperature | 105°C (221°F) |
| Electrical Connection | Screw Clamp Terminals |
| Winding Material | Copper |
| Enclosure Type | Open Device (Not Rated) |
| Fingersafe Cover | FSC1 Compatible |
| Height | 2.89 in (73.41 mm) |
| Width | 3.38 in (85.85 mm) |
| Depth | 3.34 in (84.84 mm) |
| Weight | 4.251 lb (1.928 kg) |
| UL Listing | UL Listed, File E61239 |
| CSA Certification | CSA Certified, File LR37055, Guide 184-N-90 |
| CE Marked | Yes |
| Country of Origin | Mexico |
| GTIN | 785901845577 |






