Accessories to allow rapid creation of powerful MEprotect-based protection systems
Comprehensive set of optional accessories to complement the power of MEprotect relays for designing and building cost-effective, reliable and high-quality electrical asset protection applications.
Product List
Relay expansion modules
Extend the power of the relay with:
- Additional digital IO (8x DIN, 4x Relay DOT)
- RTD sensors (4ch. or 8ch. modules) - PT100, PT1000, NTC, or PTC
- 4-20mA IO (2x AIN, 2x AOT) incl. PID control blocks
- Ethernet expansion module (Modbus TCP, Profinet)
CT module blocks (with voltage sensing up to 550Vac)
Select the appropriate CT module block for the application (0.1A to 300A models available).
Note: for larger currents - or for MV applications - use external CTs and VTs with model MEP0400 interposing module block.
Core balance CTs
MEprotect offers core balance CTs (CBCT) in various ratings and cable-window geometries/sizes.
Alternatively, user-supplied CBCTs with 1A secondary current can be used with MEprotect relays.
HMIs / Graphical Operator Terminals
MEprotect can work completely autonomously without any HMI. If local access is needed for operating equipment (on/off); for monitoring live equipment status: or making setting changes, two HMIs are offered:
- 7" full TFT colour touch screen or
- 3.8" greyscale touchscreen with 4 backlight colours representing relay status
The HMI can be mounted up to 100m (Ethernet cable) or 1000m (RS485 cable) distance from its MEprotect relay.
Other accessories
- External memory module (for storing MEprotect relay's configuration, allowing one-step relay programming, e.g. after replacement)
- LV Insulation lockout module, used to prevent the closure of main contactor onto an earth fault
- LV Voltage converter module - used when measuring phase voltage >550Vac (max. = 1050Vac)
