Siemens Reyrolle 7XG225 3RMLG Test Block

7XG225 3RMLG Test Block is a flexible and high performance test block system with a focus on operator safety. Suitable for application on a wide range of protection relay panels.

• Finger safe test sockets
• Automatic CT shorting
• 14 or 28 independent test groups

Features

• A range of 14 way and 28 way test blocks, the 14 way are housed in an Epsilon size E2 case, 28 way blocks are housed in an E4 case.
• CT shorting is included in each model.
• Shorting takes place in the test block, not the test plug.
• Uses a three stage isolation process.
• Test plugs are fitted with 4mm shrouded test points.

Functions

• 14 way test blocks with 5 connection options.
• 28 way test blocks with 5 connection options
• All 14 way blocks use the same 14 way test plug
• All 28 way blocks use the same 28 way test plug

Applications:

Test blocks enable test technicians to quickly and safely isolate protection relays so that test signals may be injected and system performance verified. There are a number of advantages in performing injection tests at the protection relay panel:

• Reduction in down time of the equipment under test
• Testing does not cause disturbance to wiring, terminals or equipment settings
• Existing auxiliary supply to the equipment under test may be isolated

The 3RMLG Test Block system is designed as a general purpose isolation and test signal injection point. Finger safe sockets are employed to improve operator safety and suit 4mm shrouded type banana plugs. Equipment under test need only be removed for servicing if problems are detected or for routine maintenance. Where more than 14 test circuits are required, refer to the 3RMLG models that provide 28 test circuits.

The comprehensive range of Reyrolle products provides the total protection requirements of distribution markets and industrial applications – ranging from overcurrent protection via transformer protection and voltage control to a full spectrum of auxiliary and trip relays. The portfolio includes many famous products such as “Argus, “Duobias”, “Solkor”, “Rho, etc. Through successive generations, Reyrolle numerical products have been developed to increase value to system operators. Discover the portfolio!