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Internal Accessories

Preparation For Installation of Internal Accessories

CAUTION

NOTE: Refer to the separate SB Accessories Installation

and Instruction Guide for information on Accessory

Installation and ratings. Refer to the separate SB Trouble

Shooting Guide for trouble-shooting tips (IPIS-00102-

0599).

Accessories

The full family of accessories available for Siemens SB breakers

are presented in this section. The accessories are divided into

two groups. Group one consists of accessories installed in the

front compartment of the circuit breaker (Internal Accessories).

Group two consists of accessories installed or used outside of

the front compartment (External Accessories). The External

Accessories are installed on the exterior of the circuit breaker,

on the drawout elements, or at remote locations. When the

installation location is referred to as the right side or left side, it

is with reference to the user’s right or left side when facing the

front of the breaker.

Components required to access or activate an accessory such

as a switch or indicator at a remote location are assumed to be

user supplied unless otherwise stated.

Group One – Internal Accessories

Secondary connections to remote locations are made to sec-

ondary disconnects on drawout breakers and to control termi-

nal blocks on ﬁxed-mounted breakers. The terminal points for

all internal accessories are illustrated in the control terminals

diagram on page 59.

Control power connections for accessories are made through

terminal blocks mounted on the sides of the breaker. Drawout

constructed breaker control power connections are made

through secondary disconnects mounted on the stationary and

moving elements.

Electric Operator Troubleshooting Guide

Symptom Solutions

Motor does not run. 1. Check for springs already charged by checking spring charge indicator.

2. Check for rated voltage at LT1 (+) and LT5 (–).

3. Check motor fuse – requires 2.5A Slo-Blo fuse.

4. Check all wiring connections.

5. If the lamp connected to LT4 is blinking slowly (1 second on, 2 seconds off), manually charge breaker.

Motor runs for 20 seconds, does not charge

springs, optional lamp on LT4 blinks slowly

(1 second on, 2 seconds off).

1. Breaker has been partially charged manually. Complete manual charge operation with the charging handle. Electric

motor operator should now be engaged for the next charge cycle.

Breaker will not close electrically. 1. Check to see if springs are charged by checking charged indicator ﬂag.

2. Check for power on LT1 (+) and LT5 (–).

3. Check for power on LT2 (+). If power is on LT2 (+), remove and re-apply.

4. Check to see if breaker is locked in open position by either padlocking device, kirk key, or drawout interlock.

5. Check to see if breaker handle is fully seated in cover.

6. Check all wiring connections.

7. Check motor fuse – requires 2.5A Slo-Blo fuse.

8. Verify latch check switch adjustment

Lamp on LT4 blinks slowly (1 second on,

2 seconds off).

1. Manually charge breaker springs. Lamp on LT4 should remain on.

Install all accessories with the breaker

Open and Discharged as shown above.

To avoid injury or damage to equipment,

do not install accessories with breaker

in a Closed or Charged position.

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