U.S. TSUBAKI SHOCK RELAY
TSBSS Series — Manual Reset TSBSA Series — Automatic Reset
Overload Protection – OEM Model For use with single and three-phase motors up to 300 amps
START TIME During startup, the current draw of a motor is greater than the running current. In order to prevent the Shock Relay from engaging during startup, the start time is adjustable from 0.2 seconds to 30 seconds.
SHOCK TIME The shock time feature allows the current overload time to be set. The shock time is adjustable from 0.2 seconds to 10 seconds. The Shock Relay will only trip when the current draw of the motor exceeds the trip current and when the shock time is exceeded.
TEST The test button simulates a current overload.
RESET BUTTON (SS model) SA is auto reset.
CURRENT (A) The trip current level is user adjustable and varies according to the Shock Relay model selected. The Shock Relay will only trip when the current draw of the motor exceeds both the current setting and the shock time setting.
CONNECTION TERMINALS (CONTACTS) L1 & L2: Used to provide power to the Shock Relay. 95, 96 & 98: Provide output from the Shock Relay. The application - such as a motor - can be wired into these terminals. When the Shock Relay trips, the circuit opens and the application stops.
TYPICAL CONNECTING DIAGRAM
DIMENSIONS (mm)
SS Series Three-Phase
SS Series Single-Phase
SA Series Three-Phase
SA Series Single-Phase
Off: M: Tr:
CB: MC: On:
Stop Switch
Circuit Breaker Magnetic Contactor
Motor
Transformer
Start Switch
Note: Refer to Specifications on page D-15.
D-9
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