ASSOCIATED PRODUCTS
Label holder type NBM 251
Label holders type NBM 251 are included in MDF:s type
BAB 326 and NBL 323 06/12. For other applications label
holder NBM 251 01/2 can be ordered. Delivered in 10-
pack. Labels are included.
Overvoltage Protection
All terminal blocks type NER 251 can be provided with
overvoltage protection.
The cassettes are intended for 10-pair terminal blocks.
Three-pole gas arresters are mounted in the cassette
Cassette NFD 251 41,
Cassette NFD 251 41/2,
Cassette NFD 251 42,
Cassette NFD 251 42/2,
350 V.
230 V.
350 V with fail-safe.
230 V with fail-safe.
Marking Set 769 302
Each terminal block can be provided with a number
by means of a marking set 769 302.
If a cassette is provided, the marking can be left on the
block or it could be moved to the cassette.
The marking set 769 302 contains 10 pcs. of labels marked
from 1, 2, 3 and so on to 0. One marking set 769 302 is
delivered with each box of terminal blocks.
Disconnection plug 769 364
Used for disconnecting a line in terminal block NER 251
31 and 41.
Colour black. Delivered in 25-pack.
Marking plug type 769 338
Used for marking of special pairs, alarms, etc.
769 338/1, colour red.
769 338/2, colour green.
769 338/3, colour yellow.
Recommended quantity: 5 - 10 % of the total number of
exchange lines.
Each article is delivered in 25-pack.
Termination tool LSY 138 252
To the terminal blocks type NER 251 with slot/slot
terminals, termination tool LSY 138 252 is used.
Checking tool 769 312
Is used for control of the connected wires on the incoming
side of the terminal blocks and for removing terminal
blocks from the terminal block holder.
Tool set LTT 323 01
Delivered in units of 1 pc.
Contains: 2 pcs. of termination tool LSY 138 252
2 pcs. of connection fixture LTF 225 01
5 pcs. of checking tool 769 312
1 pc. of cassette extractor 769 635
Each tool can also be ordered separately.
A condition for use of overvoltage protection is that
the terminal blockholder in use is provided with earth
wiring.
Fuse plug type NGG 323
Fuse plug NGG 323 can only be used with disconnectable
terminal blocks i.e. NER 251 31/41.
NGG 323 03 Fuse plug. Delivered in 100-pack.
NGG 323 101 PTC plug, a self-resetting current fuse.
Delivered in 10-pack.
Test cord type RPM 251
Test cord and plugs used for quality measurement
of connection in the terminal blocks.
RPM 251 01
2-pole, for one-pair measurement, can be used in all
terminal blocks type NER 251.
RPM 251 03/030
4-pole, for one-pair measurement, is used in terminal block
NER 251 31 and NER 251 41 (disconnectable terminal
blocks.)
To be ordered separately:
Terminal block holder (single)
Earth bar (single)
Terminal block holder
Label holder (foldable)
Cassette with 10 pcs: NGC 403 01, 350 V
"
NGC 403 01, 230 V
"
NGC 403 02 with failsafe, 350 V
"
NGC 403 02 with failsafe, 230 V
Ericsson Network Technologies AB
Stockholm, SWEDEN
Phone +46 8 719 0000
www.ericsson.com/networktechnologies
EN/LZT 108 1129 Rev F
© Ericsson Network Technologies AB
Subject to alterations withhout prior notice. xxxxpo.P65
769 045
769 046
type NBH 123
NBM 251 01/2
NFD 251 41
NFD 251 41/2
NFD 251 42
NFD 251 42/2
Fuse plug
PTC plug
Test cord 2-pole
Test cord 4-pole
Disconnection plug
Marking plug
Termination tool
Checking tool
Tool set
NGG 323 03
NGG 323 101
RPM 251 01
RPM 251 03/030
769 364
type 769 338
LSY 138 252
769 312
LTT 323 01
ERICSSON [ ERICSSON ]
