156-112, Pilz, Pilz PNOZsigma PNOZ s4 Emergency Stop Safety Relay, 48 → 240V ac/dc, Dual-Channel, 3 Safety Contacts, Brand Pilz, Supply Voltage 48 → 240V ac/dc, Number of Channels 2 Pilz PNOZsigma PNOZ s4 Emergency Stop Safety Relay, 48 → 240V ac/dc, Dual-Channel, 3 Safety Contacts