Watlow DIN-A-MITE ® Style C Solid State Power Controller

30A 17-8030 FWP30A14F 17-5114 USM141i

40A 17-8040 FWP40A14F 17-5114 USM141i

50A 17-8050 FWP50A14F 17-5114 USM141i

63A 17-8063 FWP63A22F 17-5122 US221i

80A 17-8080 FWP80A22F 17-5122 US221i

100A 17-8100 FWP100A22F 17-5122 US221i

2. Combination fuse (suitable for applications with 600V AC and below)

Rated current of fuse Watlow, fuse model Bussman, Watlow bracket model Bussman, bracket model

30A 0808-0325-0030 DFJ30 0808-0326-1530 CH30J1i

40A 0808-0325-0040 DFJ40 0808-0325-3560 CH60J1i

50A 0808-0325-0050 DFJ50 0808-0325-3560 CH60J1i

63A 0808-0325-0060 DFJ60 0808-0325-3560 CH60J1i

80A 0808-0325-0080 DFJ80 0808-0325-7010 J60100-1CR

100A 0808-0325-0100 DFJ100 0808-0325-7010 J60100-1CR

3. EMI filtering requirements (electromagnetic interference suppression)

Mandatory scenario: When the load current is greater than 6A and the frequency is 150-250kHz, an external EMI filter must be used. Watlow verified that the "Tank Filter" can effectively suppress the EMI generated by the SCR power controller and meet the conducted emission limit.

Filter selection: For single-phase 230V (ac), choose Crydom 1F25 or Watlow 14-0019; Choose Crydom 3F20 or Watlow 14-0020 for three-phase 440V (ac); At the same time, a warning is issued that "slot filters may suppress useful communication in the 150-250kHz frequency band (such as baby monitors, medical alarm systems), and there is no safety risk that needs to be verified in advance" 🔶 1-437.