2
1MRS 750637-MUM EN
Issued 1997-03-05
Modified 2002-04-24
Version B (replaces 34 SPAM 8 EN1)
Checked MK
Approved OL
Data subject to change without notice
SPAM 150 C
Motor protection relay
Contents
Characteristics ................................................................................................................ 2
Area of application .......................................................................................................... 3
Short description of operation ........................................................................................ 3
Connection diagram ....................................................................................................... 4
Connections ................................................................................................................... 6
Control signals between the modules .............................................................................. 7
Abbreviations of signal names ......................................................................................... 7
Operation indicators ....................................................................................................... 8
Power supply and output relay module ........................................................................... 9
Technical data
(modified 2002-04) ...............................................................................
10
Maintenance and repair ................................................................................................ 13
Spare parts .................................................................................................................... 13
Ordering numbers ........................................................................................................ 13
Dimensions and instructions for mounting .................................................................. 14
Information required with order ................................................................................... 14
The complete user´s manual includes the following separate manuals:
Motor protection relay, general description
1MRS 750637-MUM EN
General characteristics of D type relay modules
1MRS 750066-MUM EN
Motor protection relay module type SPCJ 4D34
1MRS 750476-MUM EN
Versatile multifunction relay for the protection
of circuit breaker or contactor controlled a.c.
motors
Flexible single, two or three phase protection
relay for feeders etc.
Thermal overload protection, monitoring all
three phases, the thermal replica is adjustable
both for protected objects with or protected
objects without hot-spots
High-set overcurrent protection operating in-
stantaneously or with definite time characteris-
tic
Phase unbalance & single-phasing protection
with inverse time characteristic
Fast operating incorrect phase sequence protec-
tion
Sensitive definite time or instantaneous earth-
fault protection with tripping or only signalling
function
Characteristics
Undercurrent protection with wide start cur-
rent and operate time setting ranges
Start-up supervision with I
s
2
x t
s
-characteristic,
with a low-set overcurrent unit or as a start-up
time counter. The start-up supervision can also
cooperate with a speed switch on the motor
shaft of an ExE-type motor
Continuous self-supervision of hardware and
software
Current range handled meets the requirements
for ExE motor drives of Zone 1
Two versions; one with a normally open trip
contact for circuit-breaker controlled drives and
another with a normally closed trip contact for
contactor controlled drives
Fibre-optic serial communication over the SPA
bus provides access to any relay data
Powerful support software for parametrization
of the relay and for recording of measured and
recorded values, events, etc.
