Features
−− Suitable for tripping, blocking, interlocking, signalling etc.
in protection, control and industrial systems
−− Various ratings and contact configurations
−− High voltage insulation
−− Screen protected and dust-proof with a transparent
plastic cover
−− Low power consumption
−− Heavy-, medium or light duty operation and long
mechanical life
−− Indication flags
−− High resistance to shock and vibration
−− Ultra high and high speed operation, down to 1,5 ms
−− Up to 15 contacts in one relay

Application
The relays are intended for installations where high operating
requirements exist, on operating time, contact rating (heavy
breaking duty) or else where normal relays of industrial type
are not suitable.
The relays are especially suitable in protection and control
circuits. Models exist that are very suitable for high corrosive
atmosphere or seismic areas. Tripping, interblocking and
multiplying functions are easily achieved with single relays or
combinations of relays.
Special requirements can be met by using different contact
types, twin contacts, bridge contacts or dry-reed contacts.
Types RXMA 1, RXMA 2 and RXMM 1 are used as position
repeat relays, as interposing relays in control equipment and
as output relay in protection relays.
Type RXMM 1 is a space saving relay with two coils, each with
3 contacts for applications where few contacts are needed.
Type RXMS 1 is particularly suitable as tripping relay due to its
extremely short operate time. A special variant, which is not
influenced by capacitive discharges at earth fault and which
also has improved insulation across open contact, is available
for heavy applications where high disturbance immunity is
required.
RXMS 1, in combination with heavy-duty relays, is used in
high speed tripping assemblies as accessories to protection
relays.
Type RXSF 1 is a signal flag relay intended for use as
operation indicator. A zero voltage type is available and can
be used to supervise dc supply voltages.
Types RXME 1 and RXME 18 are used where a low number of
heavy duty contacts are required e.g. as trip relay. RXME 18 is
a RXME 1 with an operating flag indicator.
Type RXMH 2 is used when many heavy duty contacts are
required. It can be provided with an operating flag indicator,
as an option.

RK 211 074-AN