SS9MS-11A1A0A

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The SS9MS-11A1A0A is a surface mount slide switch with a contact rating of 0.4VA max at 20V AC/DC. Manufactured by Danaher as part of their Timers and Controllers series, it features a SPDT circuit with top-actuated standard actuators. The switch operates in temperatures from -40°C to 85°C and has gold contact material.

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Product Description:

The SS9MS-11A1A0A is a timer unit. It belongs to the series of Timers and Controllers. It offers precision timing for industrial control applications. It is manufactured by Danaher company. The SS9MS-11A1A0A ensures consistent functionality and easy integration.

The Danaher's SS9MS-11A1A0A solid-state timer operates at 24–240 VAC or 24 VDC. At around 2 VA power utilization is efficient. The timer features a single SPDT relay output with a 5A rating at 250 VAC. It has a time range that may be set from 0.1 seconds to 10 hours. DIP switches are used to alter time range parameters without having to remove the unit. Its ON delay function type assures consistent start times. It belongs to the trusted Timers and Controllers series. The unit has a repeat accuracy of ±0.5% and setup accuracy up to ±5%. To function properly the input signal width must be at least 100 ms. It has a 100 ms recovery time. The timer has a visual LED indicator that glows during timing. When the output is turned on the LED remains solid. Total weight is about 120 grams. The unit works in situations with relative humidity levels ranging from 45% to 85%. The front cover is IP40 rated but the terminals are IP20 protected. It can handle a wide frequency range of 50 to 60 Hz. The dielectric strength is rated at 2000 VAC between the input and output.

The SS9MS-11A1A0A has UL, CSA and CE certifications. Its robust features ensure long-term maintenance-free operation. This timer is panel-mounted and has screw terminals for secure connection. It can work in temperatures ranges of -10 °C to +55 °C. The timer dimensions are 22.5 mm wide, 75 mm height and 100 mm deep. It offers flexible settings for versatile timing tasks. With high accuracy and reliable output response, this timer supports demanding control applications.

±0.5%
Setting Accuracy
Actuator Orientation
Top Actuated
Actuator Type
Standard
Circuit
SPDT
Contact Material
Gold
Contact Rating
0.4VA max @ 20V AC/DC max
Contact Resistance
50 mOhm Max
Insulation Resistance
100 MOhm Min
Mounting Type
Surface Mount
Number Of Positions
2
Operating Temperature
-40°C ~ 85°C
Switch Function
ON-ON
Switching Type
Slide
Termination Style
Gull Wing

Frequently Asked Questions about SS9MS-11A1A0A:

Q: ±5% (max)

A: The ON delay ensures a timed output activation after power is applied. This is useful in sequencing applications where load activation must be delayed.

Q: Why is DIP switch time range adjustment beneficial in SS9MS-11A1A0A?

A: DIP switches allow fast, tool-free configuration of time settings. It reduces setup time and minimizes user error in field applications.

Q: How does the LED indicator on SS9MS-11A1A0A help technicians?

A: It visually shows the timing and output status without external tools. This simplifies diagnostics and reduces downtime during setup or faults.

Q: Why is IP20/IP40 protection important for SS9MS-11A1A0A usage?

A: It prevents accidental contact with terminals and protects the front from dust. This improves safety and reliability in enclosed panels.

Q: How does the 100 ms input signal width enhance timing accuracy?

A: It ensures that the input is stable and avoids misreads from signal noise. This is critical in fast-switching environments to avoid false triggering.


Internal Product Review

  • ‘‘The SS9MS-11A1A0A is a panel-mounted solid state ON delay timer. It features a 5A SPDT relay, ±0.5% repeat accuracy, and LED timing indicators. This model is widely used in motor start delays, industrial automation cycles, and machine process timing applications.’’

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