Technical illustration. Representative component image; exact configuration and appearance may vary. Images are for reference only. The supplied part’s appearance may differ.
1SAM201903R1002 — Auxiliary contact block
Electrical & controlsPart number: 1SAM201903R1002
ABB 1SAM201903R1002 (SK1-20) is a right-side-mounted signaling contact for manual motor starters. It provides two normally open contacts for trip indication, uses screw terminals and requires manual reset after a trip.
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Technical specifications
| Manufacturer | ABB |
|---|---|
| Part number | 1SAM201903R1002 |
| Category | Electrical & controls |
| Product Net Width | 9 mm |
| Product Net Height | 90 mm |
| Product Net Depth / Length | 78.5 mm |
| Product Net Weight | 0.035 kg |
| Rated Operational Voltage | 690 V AC; 600 V DC |
| Rated Impulse Withstand Voltage (U imp ) | Auxiliary Circuit 6 kV |
| Rated Insulation Voltage (U i ) | 690 V |
| Number of Auxiliary Contacts NC | 0 |
| Number of Auxiliary Contacts NO | 2 |
| Degree of Protection | IP20 |
| Terminal Type | Screw terminals |
| Connecting Capacity Auxiliary Circuit | Flexible with Ferrule 1/2x 0.75 ... 1.5 mm² |
| Tightening Torque | Auxiliary Circuit 0.8 ... 1.2 N·m |
| Wire Stripping Length | Auxiliary Circuit 8 mm |
| Mounting Position | 1 ... 6 |
| Maximum Operating Voltage UL/CSA | Main Circuit 600 V AC |
| Connecting Capacity Auxiliary Circuit UL/CSA | Flexible 1/2x 16-14 AWG |
| Tightening Torque UL/CSA | Auxiliary Circuit 7 in·lb |
| Contact Rating UL/CSA | B600 |
| Ambient Air Temperature | Operation -25 to +60 °C; storage -50 to +80 °C |
| Resistance to Shock acc. to IEC 60068-2-27 | 11 ms Pulse 25g |
| Resistance to Vibrations | 5g 3 ... 150 Hz |
| Published component type | Auxiliary contact block |
| Reference status | Published part reference; specification and fitment require confirmation |
| Availability | On request |
| Extended product type | SK1-20 |
| Reset type | Manual reset after trip |
| Mounting side | Right side |
Catalogue information may contain errors or be out of date. Full specifications and verified details are available on request. Confirm the part number and equipment fitment with us before ordering.
Product questions
What does the ABB SK1-20 signal contact do?
The SK1-20 provides a trip alarm for a manual motor starter. SK1 contacts signal a trip caused by overload, short circuit or an electrical release; they do not simply follow the main contacts like an HK1 auxiliary contact.
How many contacts does 1SAM201903R1002 have and how is it mounted?
The SK1-20 has two normally open contacts and no normally closed contacts. It mounts on the right side of the main device and uses screw terminals.
Does the SK1-20 reset automatically after a trip?
No. The SK1-20 uses manual reset for its signaling contacts after a trip; the SK1-AR is a different automatic-reset series.
What electrical ratings should I check for the SK1-20?
The stated rated operational voltage is 690 V AC or 600 V DC, with a rated insulation voltage of 690 V. Check the contact duty and current rating for the actual circuit before selection; the voltage rating alone is not sufficient.
Researched on:
Research information may be outdated. Confirm fitment and specifications with our team before ordering.