- Adhesives & Sealants
-
ATEX
- ATEX Junction Boxes & Electrical Enclosures
- ATEX Control Sensors
- ATEX Intrinsically Safe Isolation Barriers
- ATEX Switches, Pushbuttons & Control Stations
- ATEX Encoders
- ATEX Mobile Devices & Communication
- ATEX Level & Flow Sensors
- ATEX Lighting & Flashlights
- ATEX Sounders and Beacons
- ATEX Accessories & Fittings
- ATEX Process Sensors
- ATEX Plugs & Sockets
- ATEX Power Supplies
-
Automation & Control Components
-
Automation Control
- Automation & Process Control Accessories
- DOL Starters
- Drives
- Electrical Contactors
- Electrical Control Cabinets
- Motors and Motor Drives
- Motor Protection Circuit Breakers
- Motor Starter Accessories
- Overload Relays
- Panel Displays & Instrumentation (Timers/Counters)
- Process Controllers & Programmers
- Signal Conditioning
- Surge Supressors
- Soft Starters
- Star Delta Starters
- Temperature Controllers
- Counters & Timers
- Panel Meters & Accessories
- PLCs and Accessories
- Pushbuttons, Switches and Accessories
- Electronic and Electrical Relays
- Electrical Solenoids and Accessories
-
Industrial Automation and Control Switches
- Emergency Stop Switches
- Foot Switches
- Fused Switch Disconnectors
- Interlock Switches
- Joysticks & Accessories
- Key Switches
- Limit Switches
- Microswitches
- Modular Switches & Accessories
- Non-Fused Switch Disconnectors
- Multipurpose Switches
- Piezo Switches
- Reed Switches
- Rocker Switches
- Rotary Switches
- Switch Accessories
- Tactile Switches
- Thermostats
- Toggle Switches
- Load Break
- Thermal Management
- Valves, Taps & Fluid Control
-
Automation Control
- Batteries
-
Cable Accessories
- Cabinet enclosures
- Cable and wire entry systems
- Clamping device
- Connection devices
- Auxiliary material
- Connectors
- Earthing, lightning and surge protection
- Fasteners
- Hand tools
-
Installation, isolation and connection material
- Adhesive tape
- Assortment box for installation- and connection material
- Assortment box with heat-shrink tubing segments
- Cable coding system
- Cable end sleeve
- Crimp cable lug for copper conductors
- Heat-shrink crimp connection
- Round or flat plug/receptacle
- Solderless copper terminals for copper conductors
- Straight-through joint
- Cable Wrap
- Branch-splice joint (set)
- Installation material for cables and tubes
- Protection material and work clothes
- Tools (Press, cut and isolate)
- Energy distribution systems
- Circuit breakers and fuses
- Protective hose systems
- Low-voltage industrial components
- Domestic Switching Devices
-
Terminal Blocks
- Neutral busbar
- Cross-connector for terminal block
- Labelling for terminal block
- Endplate and partition plate for terminal block
- Feed-through terminal block
- Indicator terminal block
- Fuse terminal block
- Sensor/actuator terminal block
- Ground terminal block
- (Knife) disconnect terminal block
- Component terminal block
- Thermal couple terminal block
- End bracket for terminal block
- Neutral disconnect terminal block
- Panel feed-through terminal block
- Single- and multi-pole terminal strip
- Multi level installation terminal block
- Component plug terminal block
- Shield connection clamp
- Terminal block connector
- Test plug for terminal blocks
- Accessories/spare parts for terminals
- Diode module
- Industrial socket/plug applications
-
Circuit Protection
-
Circuit Protection
- Busbar
- Circuit Breaker Accessories
- Circuit Breakers
- Circuit Protection Other
- Circuit Trips
- Distribution Boards
- ESD Protection Devices
- Electrical Isolators
- MCBs
- MCCBs
- RCBOs
- RCCBs
- RCDs
- Thermistors
- TVS - Transient Voltage Suppressors
- Zener Barriers
- Motor Protection Circuit Breakers - MPCBs
- Busbar Accessories
- Consumer Units & Accessories
-
Fuses & Fuse Accessories
- Automotive Fuses
- Battery Storage Fuses
- Bolted Tag Fuses
- Bottle Fuses
- BS88 Fuses
- Cartridge Fuses
- Centred Tag Fuses
- Din Fuses
- Domestic Fuses
- Electric Vehicle - EV Fuses
- Fuse Accessories
- Fuse Blocks
- Fuse Clips
- Fuse Cover
- Fuse Holders
- Fuse Kits
- Fuse Switch Disconnector
- Fuse Removal Tools
- High Speed Fuses
- Square Body Fuses
- IEC Fuses
- Medium Voltage Fuses
- Neutral Links
- Non-resettable surface mount fuses
- Non-Resettable Thermal Fuses
- PCB Through Hole Fuses
- Offset Tag Fuses
- Resettable Surface Mount Fuses
- Resettable Thermal Fuses
- Resettable Wire End Fuses
- Slotted Tag Fuses
- Photovoltaic (PV) Solar Fuses
- Solid Links
- Special Purpose Fuses
- Traction Fuses
- UL Fuses
- Electronic Fuses
- Electrical Installation Parts and Accessories
- Electrical Power and Line Protection
- Racks, Cabinets & Enclosures
- Electrical Transformers
-
Circuit Protection
- Clean Room
- Computing & Peripherals
- Displays, Lighting & Optoelectronics
- Electrical Cables & Wires
-
Electrical Connectors & Cables
- Cable, Wire & Cable Assemblies
- Connector Accessories
-
Electrical and Electronics Connectors
- Board-To-Board Connectors
- Circular Connectors & Components
- Connector Tools & Accessories
- Tubular Cable Lugs
- D Sub Connectors & Components
- DIN Connectors
- General Terminals
- IEC Connectors & Accessories
- Mains Connectors & Accessories
- PCB Connectors & Accessories
- Plug & Socket Connectors & Components
- Rectangular Connectors
- RF / Coaxial Connectors & Accessories
- Sensor Connectors & Components
- DIN Rail Terminal Blocks and Accessories
- Wire-To-Board Connectors
- XFP & SFP
- Electrical Test & Measurement Equipment
- Enclosures, Storage & Material Handling
- HVAC, Fans & Thermal Management
-
Network, Power & Signal Connectors
- Network & Telecom Connectors
-
Electrical Power Connectors
- Compact Power Connectors
- DIN 43650 Solenoid Connectors
- Hazardous Area Power Connectors
- Heavy Duty Power Connector Accessories
- Heavy Duty Power Connector Kits
- Heavy Duty Power Connectors
- Industrial Interlocks
- Industrial Power Connector Accessories
- Industrial Power Connectors
- Lighting Accessories
- Lighting Connectors
- Electrical Adapters
- USB, D-sub & Computing Connectors
- Panel Meters & Accessories
- Passive Components, Crystals & Oscillators
-
Pneumatics, Hydraulics & Power Transmission
- Electrical Actuators and Accessories
- Hydraulic Valves & Manifolds
- Pneumatic Adaptors, Fittings & Couplings
- Pneumatic Air Preparation
- Pneumatic Counters, Logic Controllers & Timers
- Pneumatic Cylinders & Actuators
- Pneumatic Instrumentation & Switches
- Pneumatic Tubing & Air Hose
-
Pneumatic Valves & Manifolds
- Blanking Plates for Pneumatic Control Valves
- Manifold Bases, Sub Bases & End Bases for Pneumatic Control Valves
- Pneumatic Manual Control Valves
- Pneumatic Solenoid Coils
- Pneumatic Solenoid/Pilot-Operated Control Valves
- Pneumatic Valve Mounting Equipment & Accessories
- Pneumatic Valve Repair & Maintenance Kits
- Power Transmission - Couplings
- Power Supplies
- Fire Alarms, Safety Control & Security
- Semiconductor Devices
-
Sensors, Encoders & Transducers
- Process Control Encoders
- Process Automation
-
Process Control Sensors
- Position Sensors
- Barcode Readers
- Capacitive Sensors
- Colour Sensors
- Contrast Sensors
- Current Sensors
- Distance Sensors
- Fibre Optic Sensors
- Flow Sensors
- Force Sensors & Load Cells
- Hall Effect Sensors
- Heavy duty connectors
- IC Sensors
- Water Level & Liquid Level Sensors
- Light Sensors
- Magnetic Sensors
- Other Sensors
- Oxygen Sensors
- Photoelectric Sensors & Infrared Sensors
- Pressure Sensors
- Proximity Sensors / Proximity Switches
- Sensor Accessories
- Sensor Cables & Connectors
- Sensor Covers
- Sensor Reflectors
- Sensor Switch Magnets - Reed Switches
- Sensors DIN connectors
- Sensors Round connectors
- Speed Sensors
- Temperature Sensors
- Thermocouples
- Electronic Tilt Sensors / Inclinometers
- Ultrasonic Proximity Sensors
- Vibration Sensors
- Vision Sensors
- Motion Sensors
- Humidity Sensors
- Infrared Sensors
- LiDAR Sensors
- Process Control Transducers
- Hand Tools & Supplies
- Computer Engineering Software & Licences
- Power Quality & Control
- PPE - Personal Protective Equipment
Kempston Controls is pleased to announce a classic British brand will return to UK ownership with our acquisition of MEM (Midland Electrical Manufacturing). The deal, completed on the 1st December 2021 includes Eaton’s MEM MEMSHIELD 1 & 2 and Cranes range. The aim is to continue MEM’s history of innovation by developing, manufacturing, and selling these dependable product ranges for years to come.
View the Range
- You are here: Home →
- Crompton Instruments →
- Automation & Control Components →
- Electronic and Electrical Relays →
- Monitoring Relays
Exclusive Euros '24 Giveaway!
Be in it to win it... Enter KCEURO2024 at checkout on all UK orders over £20
Monitoring Relays
Showing 11 - 20 of 57 results
Price
$101.14
Available for Back Order
PVA/C-380/480
PROTECTOR OVER VOLTAGE (2 OUTPUT RELAYS) 3P3W 380/480V L-L AC 50/60HZ by Crompton Instruments
Price
$101.14
Available for Back Order
PVM-380/480
PROT COMBI UNDER/OVER VOLT (2 OUTPUT RELAYS) 3P3W 380/480V L-L AC 50/60HZ by Crompton Instruments
Estimated lead time: 6 to 7 days | Check Availability
Price
$151.09
Available for Back Order
PVM-100/120
PROT COMBI UNDER/OVER VOLT (2 OUTPUT RELAYS) 3P3W 100/120V L-L AC 50/60HZ by Crompton Instruments
Price
$151.09
Available for Back Order
Price
$101.14
Available for Back Order
PVV/X-173/240
PROTECTOR COMBI UNDER VOLTAGE 3P4W 100/139V L-N (173/240V L-L) AC 50/60HZ by Crompton Instruments
Price
$101.14
Available for Back Order
PVP/S-380/480
PROT COMBI OVER VOLT 2 OUTP REL 3P4W 220/277V L-N (380/480V L-L) AC 50/60HZ by Crompton Instruments
Estimated lead time: 4 to 5 days | Check Availability
Price
$108.64
Available for Back Order
PVE-380/480
PROT COMBI UNDER/OVER VOLT 2 OUTPUT REL 3P4W 220/277V L-N (380/480V L-L) AC by Crompton Instruments
Estimated lead time: 4 to 5 days | Check Availability
Price
$108.64
Available for Back Order
PHD-100/120
FRQ PROTECTR COMBI UNDER/OVER FREQ 2 REL 1-PHASE 57.7/69.3V L/N L/L AC by Crompton Instruments
Price
$158.58
Available for Back Order
PHD-173/240
FRQ PROT COMBI UNDER/OVER FREQ 2 REL 1-PH 100/139V L/N L/L AC 50/60/400HZ by Crompton Instruments
Price
$158.58
Available for Back Order
