CEE Relays Ltd

Tel:   +44 1753 576477    Fax: +44 1753 825661
A-Z All Relay Products from CEE
The following list details every relay product currently available from CEE.  General brochures are available online; you can contact us for wiring diagrams, commissioning instructions or advice on maintenance or testing. 
If you are searching for relays for a particular application such as "motor protection" or "voltage-restrained overcurrent", try using our online Product Selection Tool.  
Can't find what you are looking for?  Some of our older products have been superseded; you can find advice on replacing obsolete products using our online tool. 
AMS7001  
AMS7002  
AP901 
AP902 
AP910F 
AP910P 
AS01 
AS02 
AS06 
AS07 
Digital control relay with two voltage inputs 
Digital control relay with one voltage and one current input 
Arc detector relay for up to 12 point light sensors and 1 fibre loop 
Arc detector relay for up to 3 fibre loop light sensors 
Arc detector master unit with inputs for 1-3 fibre loop light sensors 
Arc detector master unit, 1-12 point light sensors and 1 fibre loop 
Point light sensor for AP900 / NP900 arc detector relays 
Point light and pressure sensor for AP900 / NP900 arc detectors 
Plastic fibre optic loop sensor for AP900 arc detectors 
Glass fibre optic loop sensor for AP900 arc detectors 
BAT7001  
Auxiliary DC power supply, powered from line CTs 
CEF50
CEF50MU
CEF50MU2
CEF50P
CTC7000
Timer (time-on delay) with changeover contacts and AC or DC coil
Timer (drop-off delay) with timed and instantaneous contacts
Timer (drop-off delay) with timed changeover contacts
Timer (output pulse duration) with changeover contacts
DC/DC converter to step up 24VDC to 48VDC
DDL800  
DTM7033  
DTT7031  
DC Line fault detector 
Three-phase differential protection for rotating machines 
Biased three-phase differential protection for transformers 
EX600 
EX700 
Retro-fit static exciter and analogue AVR (use with RG600 system) 
Retro-fit static exciter and digital AVR (use with RG730 / RG750) 
FTT7111
Overfluxing protection for power transformers
GTM7111
Out-of-step protection for synchronous motors
HDG7020
Frequency protection relay
IAG7014  
IAG7034  
IAGB7012  
IMM7960  
IMM7990  
IMM8001  
IMM8002  
ITD7111  
ITF114 
ITF115  
ITG7013  
ITG7105  
ITG7111  
ITG7113  
ITG7114  
ITG7116  
ITG7118  
ITG7123  
ITG7166  
ITG7196  
ITG7216  
ITG7266  
ITG7296  
ITG7305  
ITG7316  
ITG7366  
ITG7396  
ITG7416  
ITG7466  
ITG7496  
ITH7111  
ITI7521  
ITV7166  
ITV7266  
ITV7366  
ITV7466  
Single-phase high-impedance differential relay 
Three-phase high-impedance differential relay 
Direct Current Earth-fault protection 
Multi-function motor protection 
Multi-function motor protection 
Multi-function motor protection 
Multi-function motor protection 
Directional overcurrent relay 
AC sensitive overcurrent relay 
DC sensitive overcurrent relay 
Single-phase instantaneous overcurrent relay 
Residual or core-balance definite time overcurrent 
Neutral overcurrent relay (definite time) 
Single-phase definite time overcurrent relay 
Definite time overcurrent, desensitised to 3rd harmonic 
Single-phase definite time overcurrent with high-set element 
Single-phase definite time undercurrent relay 
Two-phase definite time overcurrent relay 
Three-phase definite time overcurrent with high-set element 
Three-phase definite time overcurrent and E/F with high-sets 
Single-phase standard inverse IDMT overcurrent with high-set 
Three-phase standard inverse IDMT overcurrent with high-set 
Three-phase standard inverse IDMT O/C with E/F and high-sets 
Single-phase very inverse IDMT overcurrent 
Single-phase very inverse IDMT overcurrent with high-set 
Three-phase very inverse IDMT overcurrent with high-set 
Three-phase very inverse IDMT O/C with E/F and high-sets 
Single-phase extremely inverse IDMT overcurrent with high-set 
Three-phase extremely inverse IDMT overcurrent with high-set 
Three-phase extremely inverse IDMT O/C with E/F and high-sets 
Sensitive earth fault relay 
Alternator negative sequence protection 
Voltage restrained overcurrent (definite time) 
Voltage restrained overcurrent (standard inverse IDMT) 
Voltage restrained overcurrent (very inverse IDMT) 
Voltage restrained overcurrent (extremely inverse IDMT) 
LDN2
Fault locator for AC catenaries
MF61-R 
MF62-R 
MF63-R 
MF64-R 
MF67-R 
MF68-R 
Phase measurement module (RG600 system) 
Rotor limitation module (RG600 system)  
Stator limitation module (RG600 system)  
Recopy / Redundancy module (RG600 system)  
Absorbed reactive power limitation module (RG600 system)  
Under / Over current excitation relay module (RG600 system)  
NPBC915  
NPE915  
NPF910  
NPF915  
NPG800  
NPG800R  
NPG915  
NPI800  
NPI800R  
NPID800  
NPID800R  
NPIDR800 
NPIH800  
NPIH800R  
NPIHD800  
NPIHD800R  
NPIHD800-S1  
NPIR800 
NPM800  
NPM800R  
NPM800RE  
NPM910  
NPM915  
NPP915  
NPRG810-1G  
NPRG810-4G  
NPRG860  
NPRG870  
NPS914  
NPSC800-1  
NPSC800-2  
NPSC800R  
NPSC800RE  
NPT916  
NPTA915  
NPU800  
NPU800R  
NPU800RE  
NPUH800  
NPUH800R  
NPV911  
NPW800  
NPW800R  
Network controller with synchronisation check and auto-recloser 
Energy management device and fault locator. No trip functions 
Feeder protection with phase and earth overcurrent trips 
directional /non-directional O/C, E/F, under- and over-voltage 
Multi-function generator protection relay 
Multi-function generator protection relay (R-Case) 
Generator protection relay (includes ROCOF and vector shift) 
Three-phase overcurrent and earth fault relay 
Three-phase overcurrent and earth fault relay (R-Case) 
Three-phase directional O/C and E/F relay 
Three-phase directional O/C and E/F relay (R-Case) 
Three-phase directional O/C and E/F relay with automatic recloser 
Earth fault relay 
Earth fault relay (R-Case) 
Directional earth fault relay 
Directional earth fault relay (R-Case) 
Special sensitive directional or non-directional earth fault relay 
Three-phase O/C and E/F relay with automatic recloser 
Multi-function motor protection 
Multi-function motor protection (R-Case) 
Multi-function motor protection with extra I/O (R-Case) 
Motor protection relay 
Motor protection with voltage and power trip elements 
Power monitoring device with no protection functions 
synchronism check between one generator and the network 
synchronism check between up to four generators and the network 
Automatic synchroniser for 1 generator 
Automatic synchroniser for 1-4 generators, with voltage adjustment 
Signalling relay to add extra I/O and logic to other relays 
Synchronisation check relay 
Synchronisation check with Live/Dead Line/Bus function 
Synchronisation check relay (R-Case) 
Synchronisation check with Live/Dead Line/Bus function (R-Case) 
Differential overcurrent relay for transformers / rotating machines 
Transformer protection relay with built-in AVR 
3-ph over/under voltage and over/under frequency 
3-ph over/under voltage and over/under frequency (R-Case) 
3-ph over/under voltage and over/under freq, extra I/O (R-Case) 
Zero-sequence overvoltage relay 
Zero-sequence overvoltage relay (R-Case) 
Voltage and frequency relay with synchronisation check feature 
Real & Reactive over/under power, with phase angle protection 
Real & Reactive over/under power, with phase angle (R-Case) 
PDZI800N 
PDZIN1  
PGTN1  
PTG7111  
PTG7113
Multi-function protection for AC catenaries (NP800 series)
Multi-function protection for AC catenaries 
Protection for traction transformers (including Scott-type) 
Directional or non-directional over-power (real power) relay 
Under-power (real power) relay 
RAD7004  
RAD7006 
RAD7008 
RAD7010 
RADE2030 
RADE3080 
RADE4160 
RADE7010  
RAG1020
RAG2040
RAG3080
RAG4160
RAT2002
RAT3008
RAT3044
RDSY 
RG50 
RG600 
RG66 
RG730  
RG750  
Hand-reset latching relay, one DC coil and 4 contacts 
Hand-reset latching relay, one DC coil and 6 contacts 
Hand-reset latching relay, two DC coils (in series), 8 contacts total 
Hand-reset latching relay, two DC coils (in series), 10 contacts total 
Bi-stable auxiliary relay, AC or DC coil, 3 change-over contacts 
Bi-stable auxiliary relay, AC or DC coil, 8 change-over contacts 
Bi-stable auxiliary relay, AC or DC coil, 16 change-over contacts 
Hand- / Electronic-reset latching relay, DC coil, 10 contacts 
Instantaneous relay with 2 change-over contacts and AC or DC coil
Instantaneous relay with 4 change-over contacts and AC or DC coil
Instantaneous relay with 8 change-over contacts and AC or DC coil
Instantaneous relay with 16 change-over contacts and AC or DC coil
Timer (on-delay, off-delay or pulse), 2 change-over contacts, AC/DC
Timer (on-delay, off-delay or pulse), 8 change-over contacts, AC/DC
Timer (on-delay, off-delay or pulse), 4 timed and 4 instant contacts
Vector jump module for use with RG600 systems 
Digital potentiometer for use with RG600 systems 
Modular analogue automatic voltage regulator 
Voltage and power factor control, RG600 systems 
Excitation controller for motors 
AVR for motors using rectifier bridge exciters 
STEP840R  
STEP860R  
STS7041  
Pt100 / temperature monitoring relay with 4 channels 
Pt100 / temperature monitoring relay with 6 channels 
Synchronisation check relay 
TAA7010  
TAA7020-1  
TAA7020-2 
TAA7030  
TAA7040  
TAX7031  
TTB7011  
TTB7013  
TTB7025  
TTB7026  
TTE7015  
TTE7017  
TTG7011  
TTG7012  
TTG7013  
TTG7023  
TTG7025 
TTG7032  
TTG7033  
TTG7034  
TTG7111  
TTG7112  
TTG7113  
TTG7114  
TTG7123  
TTG7125  
TTG7132  
TTG7133  
TTG7134  
TTG7166  
TTGB7031  
TTGD7112  
TTR7146
TTRT7136  
TTT7111  
TTT7112  
TTT7114 
TTT7118  
TTT7121  
Self-reset relay, DC coil, 4 outputs 
Self-reset relay, 2 DC coils, 4 outputs 
Self-reset relay, 2 DC coils, 8 outputs 
Self-reset relay, 3 DC coils, 9 outputs 
Self-reset relay, 4 DC coils, 8 outputs 
Trip circuit supervision relay 
DC over-voltage relay (1 pickup) 
DC under-voltage relay (1 pickup) 
DC over- and under-voltage relay (1 pickup each) 
DC under-voltage relay (2 pickups) 
Rotor earth fault relay (using DC current injection) 
Rotor earth fault relay (using low-frequency AC current injection) 
Single-phase over-voltage relay (instantaneous) 
Single-phase under-voltage relay (instantaneous) 
Single-phase under-voltage / flux decay relay (instantaneous) 
Two-phase under-voltage relay (instantaneous, 1 output) 
Two-phase under-voltage relay (instantaneous, 2 outputs) 
Three-phase under-voltage (instantaneous, trip when auxiliary lost) 
Three-phase under-voltage (instantaneous) 
Neutral voltage displacement relay (instantaneous) 
Single-phase over-voltage relay (time delay) 
Single-phase under-voltage relay (time delay) 
Single-phase under-voltage / flux decay relay (time delay) 
Neutral voltage displacement relay (time delay, 1 phase only) 
Two-phase under-voltage relay (time delay, 1 output) 
Two-phase under-voltage relay (time delay, 2 outputs) 
Three-phase under-voltage (time delay, trip when auxiliary lost) 
Three-phase under-voltage (time delay) 
Neutral voltage displacement relay (time delay) 
Three-phase over- and under-voltage relay (time delay) 
Voltage balance / VT monitoring relay 
Positive sequence undervoltage relay (time delay) 
Automatic recloser 
Automatic recloser with three independent cycle time settings
Timer relay (delay on operation) 
Timer relay (delay on drop-off) 
Timer relay (timed output pulse duration) 
Timer relay (delay on operation, long time ranges) 
Timer relay (delay on operation, two sets of inputs and outputs) 
WTGA7131  
WTGA7132  
WTGA7133  
WTGR7131  
WTGR7132  
WTGR7133  
Reverse power (active) 
Overpower (active) 
Underpower (active) 
Reverse power (reactive) 
Overpower (reactive) 
Underpower (reactive) 
YTM7111  
Alternator loss of field relay 
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