Seco-Larm SM-300Q-BR Specsheet

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Screw-Terminal Surface-Mount N.O. Contacts

SM-300Q/BR

1

/2" (13mm) Gap, Open Loop, Brown, with Mounting Tabs

SM-300Q/W

1

/2" (13mm) Gap, Open Loop, White, with Mounting Tabs

Features:

 Surface-mount magnetic contacts
 Screw mount using side tabs
 Terminal cover provided (required for all applications)
 ABS plastic case has lip to prevent wires from

accidentally touching metal mountings and slotted
mounting holes for easier gap adjustment

 Contact reed switch is SPST, deactivated rhodium on

gold under-plating for a longer expected life

1



/2" (13mm) Gap

 For open loop circuits
 Mounting screws included
 Lifetime limited warranty

SM-300Q/W shown

Gold-

Plated

Contacts

Ferrite

Magnet

Screw

Terminals

Type: S
49J5

1

″

/

2

Gap

S

ecifications:

Model number SM-300-Q/BR SM-300-Q/W
Circuit type Open loop
Operation gap ½”(13mm)
Color Brown White
Terminals Screw-type
Mounting tabs Yes

Material

Contact rating

Temperature -15°~160°F (-25°~70°C)
Switch cycles 50 Million (0.1mA@5VDC)
Switch dimensions 21/2″x9/16″x1/2″ (63.5x14x13mm)
Magnet dimensions 21/2″x1/2″x1/2″ (63.5x13x13mm)
Magnet type Ferrite

SECO-LARM

16842 Millikan Avenue, Irvine, CA 92606

Phone: [phone] | [phone] Fax: [phone]

ebsite: www.seco-larm.com Email: [e-mail]

PiSM-300Q_150504.docx

Case High-impact ABS plastic
Contacts Deactivated rhodium on gold under-plating

0.1A@100VDC (max)

1.0A@10VDC (max)
10W (max)

®

U.S.A., Inc.

Dimensions:

21/2″ (63.5mm)

9

SECO-LARM

Switch

21/2″ (63.5mm)

SECO-LARM

Magnet

The SECO-LARM policy is one of continual development. For that reason, SECO-LARM reserves the
right to change prices and specifications without notice. SECO-LARM is not responsible for misprints.

All trademarks are the property of SECO-LARM U.S.A., Inc. or their respective owners.

®

®

Copyright 2015 © SECO-LARM U.S.A., Inc. All rights reserved.

/16″

(14mm)

1/2″

(13mm)

1

/2″

(13mm)

1/2″

(13mm)