4M200

General information

SKU

4M200

Short Description

Test Block system

Long Description

The 4M200 Test Block system is an evolution of the widely used 14-circuit versions in the power utility sector, now with finger-safe test sockets that accept shrouded 4mm banana plugs. Several configurations suit specific protection and control applications. The Test Block has 14 pairs of spring-loaded contacts linked to a rear terminal block. Inserting the 4M220 Test Plug first connects, then open-circuits each contact pair. The plug locates securely and is retained by two knurled screws. Its 28 finger-safe sockets are split into 14 black equipment-side and 14 yellow live-side sockets, each accepting a 4mm test plug.

Quantity

Features

14 independent test groups
‘Finger safe’ test sockets suit standard or
Auto CT shorting test plugs available
Clear and concise front panel circuit
High current / voltage rating
Compatible with industry standard 14 circuit
14 circuit Test Block
Test Plug

Application

Test blocks let technicians quickly and safely isolate protection relays so test signals can be injected and system performance verified at the relay panel. Benefits: reduced equipment downtime, no disturbance to wiring, terminals or settings, and isolation of the existing auxiliary supply. The 4M200 Test Block is a general-purpose isolation and test signal injection point with 'finger safe' 4 mm sockets for operator safety. Equipment only needs removal for servicing or maintenance.

4m200-v01-3.pdf

4m200-4m220-user-guide-v01-0.pdf