Circuit-Shield Types 51L, 51IM, 51YM - Testing Considerations for the Circuit-Shield Type 51 with Long-time Curves

Type 51 - Circuit Shield - Time-Overcurrent Relays

Type 49/50/51, 49/50 and 49 - Circuit Shield - Overload Relays

Time-Overcurrent Relay - CIRCUIT-SHIELD - TYPE 51 with Contact Output - Catalog Series: 243 and 443 - Single-Phase, Two-Phase, Three-Phase

Type 51() - Single Phase, Two Phase and Three Phase Overcurret Relays