When you are choosing the power component for an industrial control panel, the first question is not which brand to buy-it is which type of power source the circuit needs. The two new units here sit on opposite sides of that question. One is a Square D industrial control transformer; the other is an NDR-120-24 industrial power supply. Both belong in the industrial power supplies and transformers category, but they are not interchangeable. The listed prices are far apart, so the buying decision usually comes down to the application rather than the price tag alone. Before you look at the dollar figures, identify whether the panel needs a transformer or a low-voltage supply. That single decision determines which of these two products is the right fit.
Quick verdict
If your control panel is built around a traditional control transformer, the Square D 9070TF100D1 is the part to spec. If you need a new industrial power supply and want the lower listed price, the NDR-120-24 is the more direct pick. Match the power source to the circuit, and the price difference becomes easier to evaluate. The transformer is not inherently better or worse; it simply serves a different stage of the control system.
At a glance
| Product | Listed Price | Relative Price | Details |
|---|---|---|---|
| Square D 9070TF100D1 Industrial Control Transformer | $175.00 | New; Industrial Control Transformer; MPN 9070TF100D1 | |
| NDR-120-24 Power Supply | $44.99 | New; 24V/5A output; DIN Rail Mount; Blue |
Where each product wins
- Square D 9070TF100D1 wins for a panel that expects a traditional control transformer. The MPN 9070TF100D1 and new condition give the part a clear identity for an engineer or electrician to spec, and Square D appears directly in the product name.
- NDR-120-24 wins on listed price. It is the lower-priced option by a wide margin, which leaves more room in the project budget for other panel components.
Product notes
Square D 9070TF100D1 Industrial Control Transformer
This is the higher-priced unit at $175.00, and that price buys a new Square D industrial control transformer with a clear model identity: MPN 9070TF100D1, Type "Industrial Control Transformer." If your panel design calls for a transformer, this is the part to hand to the engineer or maintenance team, because the model number pins down what you are ordering. The limitation is the cost: it is $130.01 more than the NDR-120-24, so it takes a noticeably larger share of the budget. For a circuit that can run on a lower-priced power supply, that extra cost is the trade-off you have to justify.
NDR-120-24 Industrial Power Supply
The NDR-120-24 is the lower-priced option at $44.99, and its details line up for a control cabinet: new condition, 24V/5A output, and DIN rail mounting. For a panel that already uses a 24V control circuit, that output profile lines up directly. The unit also carries a 5A inrush current rating, another current figure to keep in mind. The limitation is the product type: this is a power supply, not a control transformer. If the circuit requires a transformer, the NDR-120-24 will not substitute. It is the better match when the system is designed around the 24V/5A output and DIN rail format.
Final choice by use case
Specify the Square D 9070TF100D1 when the panel is designed around a traditional control transformer and the budget can absorb the higher listed price. Pick the NDR-120-24 when the cabinet is laid out for a power supply and the lower listed price is a priority. The price gap is large, but it only matters after you know the circuit type. A transformer and a power supply serve different jobs, so the correct purchase is the one that matches the control system.
