SIEMENS RHONBO Molded Case Circuit Breaker Instruction Manual
- June 10, 2024
- SIEMENS
Table of Contents
SIEMENS RHONBO Molded Case Circuit Breaker
Product Information
The Rotary Handle Operator is an accessory product manufactured by Siemens Energy & Automation, Inc. The product is compatiblewith MD, ND, MF, NF, PD & RD Frame Circuit Breakers and can be used with breaker types MD6, ND6, MFC, MFF, NFC, NFF, PD6, RD6, HMD6, HND6, HPD6, HDR6, CMD6, CND6, CPD6, CRD6, SMD6, SND6, SDP6, SDR6, SHMD6, SHND6, SPD6, SCMD6, SCND6, SCPD6. The product is designed to provide through-the-door operation of enclosure-mounted circuit breakers. It is also designed to provide single point latching of the enclosure door when properly installed. The rotary handle operator can be used with 1, 3, 3R, 12 & 13 Enclosures 4 & 4X Enclosures Standard Depth Variable Depth Variable Extended Depth Extended Depth Shaft Circuit Breaker and Enclosed Switches. The term circuit breaker includes motor circuit interrupters and molded case switches.
Product Usage
Before installing the Rotary Handle Operator or servicing the circuit breaker, turn off and lock out all power supplying the circuit breaker. Follow the recommended installation procedure provided in the instructions.
Mounting Preparation
- Place mounting holes in panel and in door as shown in Fig. 1 provided in the instructions.
Install Breaker and Breaker Operator
- Remove the terminal shields from the line and load sides of the circuit breaker and mount the circuit breaker to the enclosure panel using the 3/8-16 X 1.75 Fillister head screws, lockwashers, and nuts. Tighten screws to 150 In.-Lbs.[16.95 N/m].
- Replace the breaker terminal shields on the load and line sides of the circuit breaker and secure with the four terminal shield screw. Tighten screws to 12 In.-Lbs.[1.36 N/m].
- Remove the second screw from each side of the six circuit breaker cover attachment screws (located above the circuit breaker handle).
Installation Instructions
DANGER: Hazardous voltage. Will cause death or serious injury. Turn off and lock out all power before working on the circuit breaker before installing or servicing.
SAFETY INSTRUCTIONS
NOTE: These instructions outline the recom-mended installation procedure.
GENERAL
The term circuit breaker, used in these instruc-tions, includes motor circuit
interrupters and molded case switches. The rotary handle operator provides
through-the-door operation of enclosure mounted circuit breakers. When
properly installed, the rotary handle op-erator provides single point latching
of the en-closure door. For maximum protection against unauthorized entry into
the enclosure, additional latching means should be provided.
MOUNTING PREPARATION
- Turn off and lock out all power supplying the circuit breaker before installing.
- Place mounting holes in panel and in door as shown in.
CAT NO/DESCRIPTION/USED WITH
- RHOH Handle 1, 3, 3R, 12 & 13 Enclosures
- RHOH4 Handle 4 & 4X Enclosures
- RHONSSD Shaft Standard Depth
- RHONSVD Shaft Variable Depth
- RHONSXD Shaft Variable Extended Depth
- RHONSB2 Long Support Bracket Extended Depth Shaft
- RHONBO Breaker Operator Circuit Breaker and Enclosed Switches. Frame sizes MD, ND, PD, RD, MF & NF
INSTALL BREAKER AND BREAKER OPERATOR
-
Ref. Fig. 2. Remove the terminal shields 1 from the line and load sides of the circuit breaker and mount the circuit breaker to the enclosure panel using the 3/8-16 X 1.75 Fillister head screws 2, lockwashers 3 and nuts 4.
Tighten screws to 150 In.-Lbs.[16.95 N/m]. -
Replace the breaker terminal shields on the load and line sides of the circuit breaker and secure with the four terminal shield screw to 5. Tighten screws to 12 In.-Lbs.[1.36 N/m].
-
Remove the second screw 6 from each side of the six circuit breaker cover attachment screws (located above the circuit breaker handle).
-
Ref. Position the breaker operator onto the circuit breaker and attach at the top us-ing the two #10-32 X 1.00 pan head screws and lockwashers.
Tighten these screws to 25 In.-Lbs.[2.82 N/m] Attach the breaker operator at the bottom using the four #10-14 X .500 thread forming screws.
Tighten to 15-20 In.-Lbs.[1.69-2.26 N/m] NOTE: THE MOUNTING HOLES ARE UNDER THE LABEL.
INSTALL HANDLE
Attach the handle and gasket to the enclosure and secure with the four square
neck bolts, lockwashers and nuts as shown in Fig. 4. Tighten nuts to 75
In.-Lbs.[8.47 N/m].
INSTALL SHAFT
- Ref. Fig. 5. Measure dimension K (depth of box) min. 11.00[279.4], max. 20.66[524.7] Shaft Cat. No. RHOSSD is for 11.00 inch deep enclosure.
- No. RHONSXD is for enclosures deeper than 11.00 inches, but not exceeding 24 inches. It also requires the RHONSB2 Long Support Bracket.
- Determine length of shaft L=K – 8.38[212.7].
- Insert the shaft into the crank and tighten the two 1/4-20 X .375 crank set screws to 70 In.-Lbs.[7.91 N/m].
CHECK OPERATION
Close the enclosure door. Confirm that the handle interlocks with the shaft to hold the door closed in all handle positions except OPEN/RESET. Check proper operation of the circuit breaker ON, OFF and RE-SET.
WARNING: Hazardous voltage. Will cause death or serious injury. Turn off and lock out all power before working on the circuit breaker before installing or servicing.
PADLOCKING HANDLE
Move handle to “OFF” position, pull lockplate from end of handle and position
between slots in handle plate. Attach padlock(s) to slot in lockplate
.
Released Production, D v1, Aug 15, 2000
Item: ROTARY HANDLE OPERATOR
For use with: MD, ND, MF, NF, PD & RD Frame Circuit Breakers
Breaker types: MD6, ND6, MFC, MFF, NFC, NFF, PD6, RD6, HMD6, HND6, HPD6,
HDR6, CMD6, CND6, CPD6, CRD6, SMD6, SND6, SDP6, SDR6, SHMD6, SHND6, SPD6,
SCMD6, SCND6, SCPD6. Types MD6ETI, CMD6ETI Motor Circuit Interrupters, and
Molded Case Switch type MXD6, NXD6, PXD6, AND RXD6.
Pc. No. 745268A02
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