Benedikt & Jäger M4 U400 Undervoltage Release 380-400 V 50 Hz
Benedikt & Jäger M4 U400 Undervoltage Release 380-400 V 50 Hz
Part number M4 U400
Also written as M4U400
17 auf Lager
The Benedikt & Jäger M4 U400 is an undervoltage release, a device that trips its associated switching device when the supply voltage to the coil falls below a set level or is removed. The coil is rated for 380-400 V at 50 Hz and 440-460 V at 60 Hz, so the supply voltage and frequency of the control circuit must fall within one of those two ranges. Supplied as the release unit only.
Specifications
| Manufacturer | Benedikt & Jäger |
| Model | M4 U400 |
| Type | Undervoltage release |
| Rated voltage, 50 Hz | 380-400 V |
| Rated voltage, 60 Hz | 440-460 V |
| Condition | New |
| Warranty | 14-30 days depend on the parts |
Condition & testing
New surplus stock, never used. Some units may have had the box opened, but none were installed or used.
Compatibility
Please contact us to confirm compatibility with your configuration.
What's included
Unit only
Before you order
- Confirm the control supply is 380-400 V at 50 Hz or 440-460 V at 60 Hz; the release must match both voltage and frequency.
- Unit only: no other accessories are included.
Compatible & Related
FAQs
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What payment methods can I use?
We accept all major credit cards (Visa, Mastercard, American Express), PayPal, and bank transfers for B2B orders. For large industrial orders, we also offer invoice payment with NET-30 terms for verified business customers.
Are the parts on your website tested and genuine?
Yes. Every part sold by Samonde is professionally tested by our technicians in Tallinn before shipping. We source directly from decommissioned industrial equipment, authorized distributors, and certified surplus stock. Each item comes with a functionality warranty.
Do you offer warranties on industrial spare parts?
Absolutely. All parts come with a minimum 14-30 day warranty. Many items, especially Siemens and Heidenhain components may have include extended 90-day coverage (depends on the parts). If a part fails during the warranty period, we offer replacement or full refund.
Can you source a part that is out of stock?
Yes. If you need a specific Siemens, Heidenhain, Fanuc, or other industrial part that is currently out of stock, contact us with the part number. Our sourcing team across Europe can usually locate hard-to-find automation components within 5-10 business days.
How do I know I'm ordering the correct part for my machine?
Each product listing includes the exact manufacturer part number (MPN), compatibility notes, and photos of the actual item. If you are unsure, send us your machine model and part number via the Contact page or WhatsApp, and our engineers will verify compatibility before you purchase.
Do you ship internationally outside the EU?
Yes. Samonde ships worldwide from our EU warehouse. We offer UPS and DHL Express and standard freight options to North America, Asia, Middle East, and South America. All shipments include tracking and customs documentation.
Benedikt & Jäger M4 U400 Undervoltage Release 380-400 V 50 Hz