HRS4H-S-12V HRS4H-S-12VDC HRS4H-S-24V HRS4H-S-24V-C-B HRS4H-S-24VDC HRS4H-S-24VDC-C HRS4H-S-3V HRS4H-S-3VDC HRS4H-S-5V HRS4H-S-5VDC