Original version of the operating instructions

ELMI article number 01104000

Note:

“The operating instructions and further technical data will be sent with your purchase.”

ELMI-Elektronik GmbH
Höfer Ohl 12, 51645 Gummersbach
Registered at Cologne District Court HRB 45688

Managing Directors: Walter Schrader / Cathrin Schmitt ppa
VAT ID DE 241143449 • Tax No. 212/5724/2111
Tel.: +49 (0)2261 / 994260 – 50 • Fax: +49 (0)2261 / 994260 – 60 02261-994260 50

Head Office 02261-994260 60 Fax 02261-994260 51 – Technology/Production
Elmi-elektronik@t-online.de
walter.schrader.gm@sbe-schrader.de
cathrin.schmitt@sbe-schrader.de

SBE Schrader Mining Electrical
Höfer Ohl 12, 51645 Gummersbach
Tel.: +49 (0)2261 / 92053 – 0 • Fax: +49 (0)2261 / 92053 – 29
sbe@sbe-schrader.de • www.sbe-schrader.de
walter.schrader.gm@sbe-schrader.de
cathrin.schmitt@sbe-schrader.de

General information on the over-current tripping unit IB4.1

Together with suitable transformers (1mV/A to 10mV/A), the electronic over-current tripping unit IB4.1 is intended as over-current protection of electrical sub-surface equipment. It is characterised by low amounts of self-heating and a huge current setting range both for chronologically delayed over-current tripping (Ith tripping) and for short-circuit quick tripping. It monitors the presence of 3 phases with approx. 120° offset; otherwise, the section is interrupted by Ith monitoring and an alarm contact can report the de-energised condition of the corresponding relay. An analogue value provides 0-10V according to 0.07…1.4 x IN.

Transformer constant                            8,6mV/A

Working range In                                   0,8- 80A

Transformer constant                            3mV/A

Working range In                                   2,3- 345A

Transformer constant                            1mV/A

Working range In                                   7- 1050A

Relapse time upon tripping                    2….3 min

Manufacturer’s address

SBE-Schrader Bergbau Elektrik
Höfer Ohl 12
51645 Gummersbach, Germany

Owner of the distribution rights

ELMI Elektronik GmbH
Höfer Ohl 12
D-51645 Gummersbach

Contact

Phone: +49 (0)2261-92053-0
Fax: +49 (0)2261-92053-29
Email: SBE@SBE-Schrader.de
Email: ELMI-Elektronik@t-online.de

Spare parts and customer service

See manufacturer’s address

Copyrights and intellectual property rights

Any copyrights and intellectual property rights for the over-current tripping unit IB4.1 shall
be held by SBE-Schrader Bergbau Elektrik.

1.2 Warranty and liability

As a matter of principle, our „General Terms and Conditions of Sale and Delivery“ shall be
applicable. Warranty and liability claims in the event of personal and/or material damage
shall be excluded if these can be attributed to one or several of the following causes:

1.3 Intended use

The over-current tripping unit IB4.1 is designed exclusively for the application options
allowed for by the manufacturer.
Any use exceeding the aforementioned shall be deemed improper. The manufacturer shall
not assume any liability for damages resulting thereof. The risk shall be borne exclusively
by the operator.
The concept of intended use also comprises the compliance with the operating,
maintenance, and repair conditions specified by the manufacturer.

1.4 Intended use

In connection with the related transformers, the over-current tripping unit IB4.1 serves for
the protection of electrical consumers regarding the effects of overload and short circuit.
When being used in sub-surface mines, the over-current tripping unit IB4.1 must be
installed into a housing of the ignition protection type „Flameproof enclosure d“ pursuant to
EN 60079-1.
The concept of intended use also comprises the observance of and compliance with any
information and instructions from these operating instructions, as well as the observance of
the relevant accident prevention regulations by the user at the application site.
Improper use may result in dangers. The liability for dangers
and damage resulting from improper use shall be borne
exclusively by the user.

1.5 Structural Modification

It is inadmissible to implement any structural changes to the over-current tripping unit IB4.1.
Unauthorised conversions to the over-current tripping unit IB4.1 are strictly forbidden.

GO BACK UP !

The post Over-current tripping unit IB4.1 first appeared on Elmi-Elektronik & SBE-Schrader-Bergbau-Elektrik.