TIME Relay CT-MFS.21S
ABB

TIME Relay CT-MFS.21S

Part numberCT-MFS.21SEAN / GTIN4016779851367HS code8536.90
Control & Automation
Relays & Timers
MOQ:1

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Product Description

ABB CT-MFS.21S — The CT-MFS.21S is a multifunction electronic time relay from the CT-S timer range. It provides 10 timing functions with 10 time ranges from 0.05 s to 300 h. This time relay operates with a rated control supply voltage of 24 - 240 V AC / DC and has a 2 c/o (SPDT) output with contacts rated at 250 V / 4 A. Two control inputs work with volt-free (floating) triggering.The CT-MFS.21S offers the possibility of connecting a remote potentiometer for the fine adjustment of the time delay. The second of the c/o contacts can be selected as an instantaneous contact. A sealable transparent cover for protection against unauthorized changes is available as accessory. The device offers screw connection technology with double-chamber cage connection terminals.

Technical Specifications

Manufacturer part number (MPN)
CT-MFS.21S EAN / GTIN: 4016779851367 HS code: 8536.90 Sales unit: pcs Country of Origin: Germany Lead Time: 0 day Product Sales Status: Active Configuration Only: No Criticality: No Note: No Product Availability Class: Standard delivery time Storage Location: 4001 Product Net Width: 22.5 mm Product Net Height: 85.6 mm Product Net Depth / Length: 103.7 mm Function: Remote potentiometer connection Timer Relay Type: Impulse OFF; Impulse ON; OFF-Delay; ON-Delay; Star-Delta Time Range: 0.05 s ... 300 h Rated Control Supply Voltage (U s ): 24 ... 240 V AC/DC Rated Operational Voltage: Auxiliary Circuit 250 V Rated Frequency (f): 50 / 60 Hz; DC Output: 2 C/O Contacts Terminal Type: Screw Terminals Rated Operational Current AC-12 (I e ): (230 V) 4 A Rated Operational Current AC-15 (I e ): (230 V) 3 A Rated Operational Current DC-12 (I e ): (24 V) 4 A Rated Operational Current DC-13 (I e ): (24 V) 2 A minimum Switching Capacity: 12 V; 100 mA Rated Impulse Withstand Voltage (U imp ): Input Circuit 4 kV; Output Circuit 1 / Output Circuit 2 4 kV Rated Insulation Voltage (U i ): Input Circuit / Output Circuit 500 V; Output Circuit 1 / Output Circuit 2 300 V Degree of Protection: Housing IP50; Terminals IP20 Overvoltage Category: III Pollution Degree: 3 Short-Circuit Protective Devices: Output Circuit NC - F Type Fuses 6 A; Output Circuit NO - F Type Fuses 10 A Electrical Durability: AC-12 100000 cycle Mechanical Durability: Nr. Operations 30000000 cycle Connecting Capacity: Flexible with Ferrule 1x 0.5 ... 2.5 mm²; Flexible with Ferrule 2x 0.5 ... 1.5 mm²; Flexible with Insulated Ferrule 1x 0.5 ... 2.5 mm²; Flexible with Insulated Ferrule 2x 0.5 ... 1.5 mm²; Flexible 1x 0.5 ... 2.5 mm²; Flexible 2x 0.5 ... 1.5 mm²; Rigid 1x 0.5 ... 4 mm²; Rigid 2x 0.5 ... 2.5 mm² Tightening Torque: 0.6 ... 0.8 N·m Wire Stripping Length: 8 mm Recommended Screw Driver: 4.5; 0.8 x 4; Pozidriv 1 Mounting Position: 1 ... 6 Mounting on DIN Rail: TH35-7.5 (35 x 7.5 mm Mounting Rail) acc. to IEC 60715; TH35-15 (35 x 15 mm Mounting Rail) acc. to IEC 60715 Standards: CAN/CSA C22.2 No.14; IEC/EN 63000; IEC/EN 61812-1; UL 508 Maximum Operating Voltage UL/CSA: Output Circuit 300 V AC Contact Rating UL/CSA: B300 Connecting Capacity UL/CSA: Flexible 1x 18-14 AWG; Flexible 2x 18-16 AWG; Rigid 2x 20-14 AWG; Rigid 1x 20-12 AWG Tightening Torque UL/CSA: 7.08 in·lb Pilot Duty UL/CSA: B300 Flammability According to UL94: V-0 Ambient Air Temperature: Operation -40 ... +60 °C; Storage -40 ... +85 °C Maximum Operating Altitude Permissible: Without Derating 2000 m Resistance to Shock acc. to IEC 60068-2-27: 30g 3 shocks 11 ms ABB EcoSolutions: Yes EcoSolutions Profile: 1SFC100125C0364 Environmental Product Declaration - EPD: 1SAC200371M0001 CCC Certificate: CCC_2007010303255979 cULus Certificate: cULus508_20110711-E140448A Declaration of Conformity - CE: 1SVD981008 Declaration of Conformity - UKCA: 1SVD981008-10 DNV GL Certificate: DNV_GL_TAA00000XR Object Classification Code: K ETIM 7: EC001439 - Timer relay eClass: V11.0 : 27371605 UNSPSC: 39122329 E-Number (Finland): 2712194 E-Number (Norway): 4187938 E-Number (Sweden): 4033107

Standards & Compliance

HS Code
8536.90

Cross References

  • EAN 4016779851367
  • SAP 1000337361
  • Code 8368953

Product Documentation

Document preview: ABB CT-MFS.21S — OEM Product Page

Catalogue entry last verified: 2026-09-29. A manufacturer datasheet is attached to this entry — confirm application-critical values against it.

Frequently asked questions

Where can I buy CT-MFS.21S?
CT-MFS.21S can be ordered from cballast.com as a ABB catalogue item: request a quotation on this page or email sales@cballast.com, and the order ships worldwide.
What is the manufacturer part number for this ABB product?
The manufacturer part number is CT-MFS.21S.
What is the HS code for CT-MFS.21S?
The customs tariff (HS) code for CT-MFS.21S is 8536.90.
Who manufactures CT-MFS.21S?
CT-MFS.21S is a ABB product in the Control & Automation range.
Is a datasheet available for CT-MFS.21S?
Yes — the CT-MFS.21S datasheet can be viewed and downloaded on this page.
What is the minimum order quantity for CT-MFS.21S?
The minimum order quantity is 1.
Is CT-MFS.21S available?
Yes — CT-MFS.21S is available to order: fulfilment is from supplier stock in cBallast's European network, dispatched directly from the warehouse to the customer, with the exact lead time stated in the quotation (reply within 24 hours).