You have entered a value in the highlighted fields below that contain invalid characters. Please revise your selection using valid characters only.



Voltage Monitoring Relay, CM-ESS.1 Series, SPDT, 4 A, DIN Rail, 250 VAC, Screw

1SVR730830R0300 - Voltage Monitoring Relay, CM-ESS.1 Series, SPDT, 4 A, DIN Rail, 250 VAC, Screw

Image is for illustrative purposes only. Please refer to product description.

Manufacturer Part No:
Order Code:
Product Range
CM-ESS.1 Series
Also Known As:
GTIN UPC EAN: 4016779852159
Technical Datasheet:
1SVR730830R0300   Datasheet
See all Technical Docs

Product Information

Want to see similar products? Simply select your required attributes below and hit the button ×

CM-ESS.1 Series



DIN Rail






Find similar products Choose and modify the attributes above to find similar products.

Technical Docs (1)

Product Overview

The CM-ESS.1 series Voltage Monitoring Relay suitable for 1-phase AC/DC voltages. It is an electronic voltage monitoring relay that provides reliable monitoring of voltages as well as detection of phase loss. It is available with two different terminal versions like proven screw connection technology (double-chamber cage connection terminals) and the completely tool-free Easy Connect Technology (push-in terminals).
  • Monitoring of DC and AC voltages
  • TRMS measuring principle
  • One device includes 4 measuring ranges
  • Over or undervoltage monitoring configurable
  • Hysteresis adjustable (3 to 30%)
  • 3 Supply voltage versions
  • Precise adjustment by front-face operating controls
  • Housing material for highest fire protection classification
  • UL94V-0 Flammability rating
  • Tool-free mounting on DIN rail as well as demounting
  • 1C/O (SPDT) contact
  • 3 LEDs for status indication



Also Known As

GTIN UPC EAN: 4016779852159
Best Seller

Available for back order

More stock available to supplier lead times which is approximately 16/11/20

Notify me when back in stock


Pricing is unavailable. Please contact customer services.

Price for:
Multiple: 1 Minimum: 1
Quantity Price Your Price
1+ HK$1,733.49
Promotional price
Contract Price
Web only price
Web only contract price

Pricing is unavailable. Please contact customer services.

No longer stocked:: No Longer Manufactured::
Add to Basket Back Order Pre-Order
Restricted Item
Add Part No. / Line Note
Total Price:
Total Price: ( )
Total Price: --

Customer Reviews

Customer Q&A Exchange


Like to see information about this product from other customers?

 Read discussions, blogs, documents from our community members.


Select document type(s) you want to see and click “Apply Filters” button
Post a question to one of our experts or start a discussion and get responses from supplier experts and fellow engineers in our community.