PBSI Group - Protection Relays

Legacy Relays

As a long standing OEM we have a number of older products lines that are no longer manufactured. In some cases we have designed pin for pin replacements, others have functional equivalence to newer products within the Vision range, others products do not have an obvious or immediate alternative.

Retrofit & Reprotect

 

If you are looking for information for an older relay or you require service or repair please contact us.


2000 Series Relays

Basic protection and multifunction protection & control relays for 3phase motors.

MPC2000, MPR2000, MPR3E5, MPC2000D, MPC2000+, MPR10

?For replacement options refer Retrofit & Replacement section.

?For Product Manuals, please refer to the Downloads section.


MIRI & MRI Series Relays

Transformer, Feeder and Generator based protection relays providing overcurrent earth fault and voltage combinations. The MIRI was configured by switch set positions whilst the MRI was configured by a 7 segment display and LED indication.

MIRI-E, MIRI-ES, MIRI-I, MIRI-IE, MREF, MRAR, MIRD-T

MIRV-E, MIRV-NVD, MIRV-O, MIRV-U, MIRV-UO, MIRP, MIRD-G

MRI-I, MRI-E, MRI-IE, MRI-ED, MRI-ID, MRI-IED, MRI-V

MRVT, MRRP, MROS, MRNS, MRMF, MRFT, MRFF, MRCS, MRDG, MRVB

The Vision100 range is suitable for replacement of the MIRI-MRI relays due to the same form and fit.

?For Product Manuals, please refer to the Downloads section.


MSP Range

A range of overcurrent, earth fault and voltage based microprocessor protection relays predominantly for use on single pole systems.

MSP-I, MSP-I2, MSP-EF, MSP-EDX, MSP-REF, MSP-V, MSP-UV, MSP-OV

?For replacement options refer Retrofit & Replacement section.

?For Product Manuals, please refer to the Downloads section.


Auxiliary Relays

Electromechanical elements mounted within a 50 series style withdrawable case to provide master trip and lockout relays, auxiliary contact relays and trip circuit supervision.

MRAU, MRAW, MRTR, MRTS

?For Product Manuals, please refer to the Downloads section.


PBSJ Relays

A range of static and microprocessor relays for overcurrent, earth fault and voltage combinations + motor protection relays.

P&B Static Relays

PBSJ -1A, PBSJ-1B, PBSJ-3C, PBSJ-1D, PBSJ-3D, PBSS -1F, PBSS-1B, PBSS-1K, PBSU -1F, PBSU-3F, PBSU-1G, PBSU-1K, PBSU-1H, PBSD-3A, PBSD-3G, PBSF-1G, PBSP-1G, PBSX-1G, PBSY-2G, PBSZ-3A, PBSN-1F, PBSN-2F, PBSN-3C, PBSR-3X, PBSR-1X, PBSU-1A

P&B micro-Golds

PBSJ-3E5 N11, PBSJ-3E5 N12, PBSJ-120, PBSJ-122, PBSJ-140, PBSJ-3E5C, PBSJ-320, PBSJ-330C, PBSJ-3M, PBSM-10, PBSM-20, PBSM-50C, PBSA-320, PBAG-310

?For replacement options refer Retrofit & Replacement section.

?For Product Manuals, please refer to the Downloads section.


P&B Golds Electromechanical Relays

Electromechanical motor overload protection relays, during production during 1960 there were over 200 derivates of the P&B Golds thermal element relay.

The relays were regarded as the motor protection relay and many are still in service around the world today.

M2, Mn2, M2A, Mn2A, MW2, MW2A, Mn4, M5, M5A, Mn5A, MW5, MW5A, M6, MW3, MWL, SA1, TSA2

?For Product Manuals, please refer to the Downloads section.