Below the protective relays are organized by type. If you have trouble finding the manual you are looking for please reach out! Give us a call at 203-888-7500 or E-mail us at sertec@cbsalesne.com!
ALS & DLS
AR & ARS
- Type AR & ARS High Speed Auxiliary Relays – 41_801e
- Type AR Auxiliary Relay High Speed – 41-759L
- Type AR Auxiliary Relay Ultra High Speed, High Threshold – 41-759.4G
- Type AR Auxiliary Relay High Threshold – 41-759.3C
- Type ARS Auxiliary Relay – 41-759.2D
BL-1 & DT-3
- Types BL-1 and DT-3 Temperature Relays – 41_501e
- Type BL-1 Thermal Overload Relay – 415531g
- Type BL-1 Thermal Overload Relay Class 1E – 41-553.2B Class 1E
CA, CA-6, CA-16, & CA-26
- Type CA Generator Differential Relay – 41_302e
- Type CA Transformer Differential Relay – 41_303e
- Types CA-16, CA-26 Percentage Differential Relays – 41_304e
- Type CA Percentage Differential Relay for Generator Protection – 413312f
- Type CA Percentage Differential Relay for Transformer Protection 50 and 60 Hertz – 41-332.2f
- Type CA Percentage Differential Relay for Generator Protection for Class 1E Applications – 4133121
- Types CA-16 and CA-26 Percentage Differential Relays for Bus and Transformer Protection – 413373l
- Type CA-16 Percentage Differential Relay for Bus Protection Class 1E Applications – IL-41-337-31C (2003 Newest)
- Type CA Percentage Differential Relay for Bus and Transformer Protection- 41-211E
Circuit Shield
- Type 87T Transformer Differential Relay – DB41-359s 87T (Brochure Trans Diff)
- Type GR-5 Family of Ground Relay Systems – IB 7.1.1.7-2A
- Type 51 Solid-State Overcurrent Relays – IB 7.2.1.7-1c 51 223 423 (overcurrent)
- Type 51 Solid State Time-Overcurrent Relay Catalog Series 243 with Contact Output – IB 7.2.1.7-14b 51 (Overcurrent)
- Type Micro-51 & Type Micro-51/FT Catalog Series 446 – IB 7.2.1.7-15C (Micro single overcurr 51)
- Types 47, 47D, & 47H Catalog Series 212F, 412F, 212N, & 412N. As well as earlier models including: 211F, 411F, 211N, & 411N – IB 7.4.1.7-2E 47,47H,47D (UnderVoltage Phase Seq)
- Type 87M Machine Differential Relay – IB 7.6.1.7-1 87M
- Type 87T Single-Phase Transformer Differential Relay – IB 7.6.1.7-4B 87T 219 419 (Trans Diff)
- Type 40 Loss of Excitation Relay Catalog Series 426 – IB 7.9.1.7-2 40 (Loss of Excitation)
- Type GR-200 Surface and Drawout Mounted Relay – IB 18.1.7-1K GR-200
CKO
- Type CKO Overcurrent Relay – 411013a
CM
- Type CM Phase Balance Current Relay – 41_161e
- Type CM Phase Balance Current Relay for Class 1E Applications – 4118121a
CO & CO-4
- Type CO (HI-LO) Overcurrent Relay – 41-100K
- Type CO Overcurrent Relay – 41101u
- Type CO Overcurrent Relay for 1E Applications – 41-100.1B
- Type CO Circuit Opening Overcurrent Relay – 41103h
- Type CO Adjustable Inverse Time Overcurrent Relay – I.L.-41-280.7B-TYPE-CO-ADJUSTABLE-INVERSE Old Style
- Type CO-4 Step-Time Overcurrent Relay for Class 1E Applications – 411061b
- Type CO-4 Step-Time Overcurrent Relay – cs106-E
COD, COM, COQ & POQ, and COV
- Type COD Current Sensing Relay – 41_162e
- Type COD Current Sensing Relay 0.5-2 and 1-4 Ampere Ranges – 411121a
- Type COM Overcurrent Relay for 1E Applications – 41-102.1b
- Type COM Overcurrent Relay – 41-102F
- Types COQ & POQ Negative Sequence Current Relays – 41_164e
- Type COQ Negative Sequence Generator Relay (50/60 Hertz) – 41161j
- Type COQ Negative Sequence Generators Relay for Class 1E Applications – 4116121
- Extra Internal Schematic for COQ-AO9 & A11 – Extra info for COQ
- Type COV Voltage Controlled Overcurrent Relay – 41_165e
- Type COV Voltage Controlled Overcurrent Relay for 1E Applications – 41-116.1C
- Type COV Voltage Controlled Overcurrent Relay (50 & 60 Hertz) – 41-116K
CP
- Type CP Reverse Phase Voltage Relay – 41_221e
CR, CRC, CRN, CRP, CRD, & CRQ
- Types CR, CRC, CRP, CRD, & CRQ Directional Overcurrent Relays – cr
- Types CR, CRC, CRP, & CRD Directional Overcurrent Relays – 41-131Q
- Type CRN-1 Single Phase Reverse Power Relay – 41_261e
- Type CRN-1 Reverse Power Relay for Class 1E Applications – 41-251.21C
- Type CRN-1 Reverse Power Relay 50 & 60 Hertz – 412512p
- Type CRQ Directional Overcurrent Negative Sequence Relay for Ground Protection – 411632b
CV, CVE, CVD, CVQ, & CVX
- Type CV Voltage Relay – 41201s
- Type CVD Relay – 412013
- Types CV, CVD, & CV-8 Voltage Relays – 41_222e
- Type CV Frequency Compensated Voltage Relay – 41-201.2G
- Type CV Voltage Relay for Class 1E Applications – 41-201.4H
- Type CV Frequency Compensated Voltage Relay for Class 1E Applications – 41-201.21B
- Types CVE, CVE-1, CVE-2, & CVE-3 Synchro-Verifier Relays – 416811r
- Types CVE & CVE-1 Synchro-Verifier Relays for Class 1E Applications – 4168111d
- Type CVQ Relay – 41-223N
- Type CVQ Relay for Class 1E Applications – 41-223.1C
- Type CVX and CVX-1 Synchro-Verifier Relays – 41682
CW, CWC, CWD, & CWP
- Type CW Power Relay – 41_262e
- Types CWC, CWP, and CWP-1 Directional Ground Relays – 41_263e
- Type CW Power Relay for Class 1E Applications with 30 Degree Characteristics for Three Phase – 41-241.31B
- Type CW Power Relay with Zero Degree Characteristics – 412412d
- Type CW Power Relay with 30 Degree Characteristics for Three Phase – 412413l
- Type CWC and CWP Directional Ground Relays – 412424f
- Type CWD Power Relay with Three Phase Watt Sensing Relay – 412414d
- Type CWP-1 Sensitive Directional Ground Relay – 412425e
D-3
- Type D-3 Direct Current Relay – 411511H
DGF, DGSH, & DGSU
- Type DGF Field Ground Detection Relay – 41_701e
- Type DGF Generator Field Relay – 41747g
- Types DGSH & DGSU Generator Stator Ground Detector Relay – 41749d
DT-1
- Type DT-3 Temperature and Micron Relay – 415521p
H3 & HV3
- Type H-3 Three-Phase High Speed Directional Relay – 41_264e
- Type H-3 and HV-3 Three Phase Directional Relays – 41-226.2E
HCB
HRK, HRP, & HRU
- Types HRK & HRP Carrier Directional Overcurrent Ground Relays (With Type HL-2 Directional Element) – 41-602.10
- Types HRK & HRP Carrier Directional Overcurrent Ground Relays (for Cathode Keyed Carrier Sets) – 41-602B
- Type HRK & HRP Directional Overcurrent Ground Relay for Carrier Current Relay Systems – 2489C
- Type HRU Instantaneous Overcurrent Relay with Harmonic Restraint – 41-347.3E
HU, HU-1, & HU-4
- Types HU, HU-1, & HU-4 Instantaneous Variable Percentage Relays – 41_305e
- Types HU, HU-1, & HU-4 Transformer Differential Relays – 41-347-11b
- Types HU, HU-1, & HU-4 Transformer Differential Relays – 41-347.1s
- Type HU and HU-1 Transformer Differential Relays for Class 1E Applications – 41-347.12C
HZ, HZ4, HZM
- Type HZM Distance Relay with Angular Displacement 60 Degrees to 90 Degrees – 41-412.1K
- Type HZM Distance Relay with Z3 Element Current Coil for Line Current and 4 Ampere D.C. Contactor Switch – 41-412.2
- Type HZM Distance Relay Supplementary Instruction for Single Pole CR Selective Pole Carrier Relaying – 41-412.3
- Type HZM Distance Relay Supplementary Instruction for Single Pole OR Selective Pole Carrier Relaying – 41-412.3B
- Type HZM Relay with 0.2 – 2.0 0hm First Impedance Element – 41-412.4
- Type HZM Distance Relay with Off-Set Transformers – 60 Degrees to 90 Degrees – 41-412.5A
- Type HZM Distance Relay with Angular Displacement 60 Degrees to 90 Degrees in Standard Projection Case – 41-412.6A
- Type HZM Distance Relay with Angular Displacement 60 Degrees to 120 Degrees – 41-412C
- Type HZM-3 Distance Relay – 41-413
- Type HZM Distance Relay with Off-Set Transformers – 60 Degrees to 90 Degrees – 41-471.1B
- Type HZM Distance Relay with Off-Set Transformers – 60 Degrees to 90 Degrees – 41-471
- Type HZ, HZ-4, or HZM Plate-Keyed Carrier Relaying – 41-904A
IRC, IRD, IRP, IRQ, & IRV
- Types IRC, IRP, IRD, IRQ, & IRV Directional Overcurrent Relays – 41_132e
- Types IRP, IRC, & IRD Directional Overcurrent Ground Relays – 41-133S
- Type IRQ Directional Overcurrent Negative Sequence Relay for Ground Protection – 411332f
- Type IRV Directional Overcurrent Relay for Phase Protection – 41-133.3J
IT, ITH, & ITH-T
- Type IT Relay 50 and 60 Hertz – 417711a
- Type ITH Relay – 41771g
- Type ITH-T Relay Preliminary Edition – 417712
JM
- Type JM Annunciator and Current Indicator – 41741C
KA-1, KA-4, & KAB
- Type KA-1 Auxiliary Relay – 419231a
- Type KA-4 Carrier Auxiliary Relay – 419234m
- Type KAB High Impedance Bus Differential Relay – 41-306-e
- Type KAB High Impedance BUS Differential Relay 50 & 60 Hz for Class 1E Applications – 41-337-41c
- Type KAB High Impedance BUS Differential Relay 50 & 60 Hz – 41-337.4H
KC-2 & KC-4
- Type KC-2 High Speed Overcurrent Relay – 417762g
- Type KC-4 Current Detector Relay – 41_104e
- Type KC-4 Overcurrent Relay – 417761l
KD, KD-1, KD-3, KD-4, KD-5, KD-10, KD-11, & KD-41
- Types KD and KD-1 Compensator Distance Relays – 41-491G
- Type KD-3 Relay – 41498b
- Type KD-4 and KD-41 Compensator Distance Relay – 41-491N
- Type KD-5 Directional Comparison Blocking Systems – 4149812b
- Types KD-10 and KD-11 Compensator Distance Relays – 41-490J
KDTG & KDXG
- Type KDTG Distance and Timer Relay – 414972d
- Type KDXG Ground Distance Relay – 41496k
- Type KDXG Ground Distance Relay (.1 to 11 Ohms for Zones 1 & 2; .25 to 27.5 Ohms for Zone 3) – 414966
KF
- Type KF Underfrequency Relay – 41503n
- Type KF Underfrequency Relay for Class 1E Applications – 4150321
KH-1, KH-2, & KH-21
- Type KH-2 Instantaneous Directional Overcurrent Relay – 41138c
- Type KH-1 Directional Relay – 411381a
- Type KH-21 Direction Overcurrent Relay – 411382c
KLF & KLF-1
- Type KLF Loss of Field Relay 50/60 Hertz – 41-748P
- Type KLF-1 Loss of Field Relay 50/60 Hertz – 417481f
- Type KLF Loss of Field Relay for Class 1E Application – 4174821c
KO-1
- Type KO-1 Relay – 41931b
KP
- Type KP Three Phase Voltage and Phase Sequence – 412224c
KQS
- Type KQS Phase Selector Relay for Single Pole Carrier Relaying – 419281d
KRC, KRD-4, KRQ, KRT, KRV
- Types KRD, KRP, & KRC Directional Overcurrent Ground Relay – 41-137L
- Type KRQ Directional Overcurrent Negative Sequence Relay for Ground Protection – 41164h
- Type KRT Directional Ground and Timer Relay – 41497b
- Type KRV Directional Overcurrent Relay – 411372e
- Type KRD-4 Directional Overcurrent Ground Relay – 411373h
KS, KS-3, KST
- Type KS Out of Step Blocking Relay .51-30 Ohms – 414921f
- Type KS-3 Out of Step Blocking Relay – 414923a
- Type KST Out of Step Tripping Relay .75-20 Ohms – 414925c
KV-1
LC1, LC2, & LCB
- Type LCB II Current Differential Line Protection Relay System – 40217a
- Type LCB II Current Differential Line Protection Relay System (with DIN Connectors) – 40219b
- Type LC-1 and LC-2 Linear Coupler Relays – 413421d
M, MC, MF, MS, & MCO
- Type MC Auxiliary Multi-Contact Relay – 41-320
- Types MC, M, MF, & MS Auxiliary Relays – 5320C
- Type MCO Microprocessor Overcurrent Relay – IB41-120b MCO
MG-6
- Type MG-6 Multi-Contact Auxiliary Relay – 41-753.1M
MPR
- Type MPR Motor Protection Relay – 41-155
MRC-T
- Type MRC-T Line Reclosing Relay – 41669a
MVH
- Type MVH Microprocessor Volts Per Hertz Relay – 41745a
PM-2,3,4,5,13,23,43
- Type PM Line of Relays for Pilot-Wire Monitoring and Transferred Tripping – 41-973.5R
POQ
- Type POQ Negative Sequence Relay – 411622d
RC
- Type RC Automatic Reclosing Relay – 41-661.1B
REG 216,316, REC 216, 316
- Type REG216, REG216 Compact, & REC216 Numerical Generator Protection Numerical Control Unit – 1MDU02005-EN-RE-216
- Type REG216/REG216 Classic Numerical Generator Protection – 1MRB520004BEN_A_en_Numerical_Generator_Protection_REG216___REG216_Classic
- Type REC 316*4 Numerical Control Unit – 1MRB520044-Uen-REC316-4
- Type REG 316*4 Numerical Protection Unit – 1MRB520049-Uen-REG316-4
- Type REL 316*4 Numerical Line Protection – 1MRB520050-Uen-REL316-4
- Type RET 316*4 Numerical Transformer Protection – 1MRB520051-Uen-RET3164
- Type REG 316*4 – 1MRK502004-BEN-A-en_REG_316_4_Numerical_Generator_Protection
SA-1
- Type SA-1 Generator Differential Relay – 41-348.1H
- Type SA-1 Generator Differential Relay for Class 1E Applications – 41-348.11C
SBF-1
- Type SBF-1 Circuit Breaker Failure Relay – 417765c
SC SC-1 SV SV-1
- Type SC, SC-1 Instantaneous Current and SV, SV-1 Instantaneous Voltage Relays – 41-766.1n
SCO
- Type SCO Solid State Single Phase Overcurrent Relay – 41-110
SDF-1
- Type SDF-1 Solid State Underfrequency Relay for Class 1E Applications – 41-504.11A
- Type SDF-1 Solid State Underfrequency Relay – 41-504B
SDG-1T 2T 4T
- Type SDG-1T, -2T, & -4T Static Ground Distance Relays – 4149652d
SG & SG IN FT-11 & FT-22 Cases
SGR-51 & SGR-52
SI-T
- Type SI-T Overcurrent Relay – 417773a
SKD-T SKD-1T
- Type SKD-T, SKD-1T Compensator Distance Relays – 4149551b
SLB & SLB-1
- Type SLB Breaker Pole Failure Relay 10 Amp Continuous Rating – 417751a
- Type SLB-1 Breaker Pole Failure Relay 10 Amp Continuous Rating – 417752a
SOQ
- Type SOQ Negative Sequence Time Overcurrent Relay – 411611b
SRG-12
- Type SRG-12 Automatic Reclosing Relay – 41-313D
SRW
- Type SRW Reverse Power Relay – 41252a
SSV SSC
- Types SSV-T and SSC-T Relays for Class 1E Application – 417665b
SVF
- Types SVF, SVF-1, SVF-3, SVF-31 Relays Constant Dropout or Pickup Voltage Value from 20 to 60 Hertz – 417664c
SVV
- Types SVV Voltage Relay – 417666a
SX
- Type SX Toggle Relay – 419622f
TD-2, TD-4, TD-5, TD-50, TD-52
- Type TD Timing Relay – 41-572
- Type TD-2 Timing Relay – 41-573D
- Type TD-4 Time Delay Relay – 41579n
- Type TD-5 Time Delay Relay – 415791n
- Type TD-50 Time Delay Relay – 415792c
- Type TD-52 Time Delay Relay – 415793a
TK
- Type TK Timing Relay – 41-574.1H
TR-1
- Type TR-1 Auxiliary Tripping Relay – 41758c
- Type TR-1 Auxiliary Tripping and Indicating Relay – 417581f
TRB & TRB-1
- TRB-1 Blocking Valve, TRB-1 Test Unit and TRB-Static Tripping Unit – 41841f
- Type TRB Zener Tripping Unit – 41842d
TT
- Type TT-12 Universal Channel Transfer-Trip Relay – 4195891e