Re-acceleration Relay Series

Description

The Model 553 Re-Acceleration Relay is designed to take the place of a voltage sensing relay and two time delay relays. When voltage is applied to the Model 553, and the external start switch is closed, the adjustable on-delay time begins. After the delay period, the contacts will close.

If the line voltage drops below 90 volts, the contacts open and the true-off delay begins. If the voltage rises above 102 volts before the true-off delay has elapsed, the contact will re-close.

If voltage is not restored to 102 volts before the true-off delay time period ends, the contacts will remain open until the external start switch is closed.

Specs

Model

553

 Versions

 - 01

- 02

 - 03 

 -04

Nominal Voltage 

120VAC   60 Hz

Trip Point Drop Out

90VAC

Trip Point Pick Up

102VAC

On Delay (Sec)

1 - 30

1 - 120 

0.1- 40 

0.5 - 1.0

True Off Delay (Sec)

1-10

1-10 

1-10 

0.1-2.0 

Power Consumption

 5W typical

Transient Protection

2500VRMS for 10 msec

Repeat Accuracy 

±0.5% 

Response Time 

100 msec 

Dead Band

±2% 

Contact Rating

10A at 120VAC  resistive 

Expected Relay Life  Mech:   10 million operations
Elec:   100,000 operations at rated load
Operating Temp

+14º to +122º F 

Humidity Tolerance

0-97% w/o condensation

Enclosure Material

 Polycarbonate

Mounting 

8-pin socket (*not included

Weight 

10.5 oz. 

Agency Approvals

 CSA

No 

No 

No 

*order 8-pin socket number 51X120
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