- Manufacturer
- Eurotherm
- Manufacturer part number
- 7300A/
40A/ 400V - Product family
- 7300A Three Phase Thyristor Units
- Technical datasheet
- Data sheet
Specifications
| Attribute | Value |
|---|---|
| Type | Thyristor power controller |
| Manufacturer lifecycle | Discontinued |
| OEM successor | EPack-3PH |
| Rated current | 40 A at 45 °C per phase |
| Rated voltage | 400 V AC line to line |
| Phases | Three phase, three controlled phases |
| Cooling | Natural convection |
| Fuse and holder (Eurotherm code) | FU3451/40A/00, triple (with microswitch: MSFU3451/40A) |
| Spare fuse | CH330054, 3 per unit (trip indicator CS176513U050) |
| Mounting | Two DIN rails (EN 50022) or bulkhead, 4 x M4 |
| Maximum cable size | 16 mm² |
| Height | 220 mm |
| Width and depth | Width 96 mm, depth 214 to 264 mm, depending on options |
| Supply frequency | 47 to 63 Hz |
| Load use categories | AC-51 resistive; AC-55b short wave infrared (units up to 100 A); AC-56a transformer primary and high temperature coefficient loads |
Show all 24 specificationsShow fewer specifications
| Control parameter (standard) | Load voltage squared (V²) |
|---|---|
| Linearity and stability | Better than ±2% of full scale (balanced supply and load) |
| Heat dissipation | About 1.3 W per amp per phase; allow 2 W with fuses |
| Thyristor protection | Varistor and RC snubber |
| Operating temperature | 0 to 45 °C, up to 1000 m altitude |
| Storage temperature | -10 to 70 °C |
| Humidity | 5 to 95% RH, non-condensing |
| Protection | IP20, overvoltage category II, pollution degree 2 |
| Approvals | CE (EN 60947-4-3), UL and cUL (file 86160) |
Description
The Eurotherm 7300A 40 A, 400 V is a three phase thyristor unit rated 40 A at 45 °C on a 400 V supply. Each of its three thyristor channels carries the full rating, and the unit controls load voltage squared (V²) in proportion to the signal. Eurotherm's matching high speed fuse and holder is FU3451/40A/00. The rest of the order code sets the firing mode, control input, fusing, manual language and options: send the full code from the label and we quote the matching unit. The 7300A is discontinued; Eurotherm's equivalent product is EPack-3PH, a different unit.
Application: Furnaces, ovens and process heating
Used with: Three phase heating loads
What is the 7300A 40A 400V used for?
It drives three phase resistive heating, short wave infrared elements (up to 100 A) and transformer primaries.
Key features
- 40 A at 45 °C, 400 V
- Three phase, three controlled phases
- Fuse and holder (Eurotherm code): FU3451/40A/00, triple (with microswitch: MSFU3451/40A)
Documents and Resources
OEM successor to 7300A 40A 400V
EPack-3PH is named by Eurotherm as an equivalent product, not a direct replacement: check wiring, I/O and configuration for your installation before ordering it. Contact sales@timcontrols.com if you need one.
Associated Products
| Image | Product | Description | Stock | View | Add to RFQ |
|---|---|---|---|---|---|
| 7300A 16A 460VEurotherm | Three phase thyristor unit, 16 A, 460 V | In stock | View | ||
| 7300A 63A 400VEurotherm | Three phase thyristor unit, 63 A, 400 V | In stock | View |
Product Questions
Is the 7300A 40A 400V discontinued?
Yes. Its manufacturer lifecycle status is Discontinued.
Is there a replacement for the 7300A 40A 400V?
Eurotherm names the EPack-3PH as an equivalent product, not a direct replacement: check ratings, wiring and configuration before ordering it in its place.
Do you ship worldwide?
Yes. TimControls ships worldwide. Parts usually ship within 3 to 7 working days of order confirmation, and the exact lead time and shipping options are stated on your quote. Include your delivery country and postal code when you ask for a quote.
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